Unstable isotopes of cesium that decay or disintegrate emitting radiation. Cs atoms with atomic weights of 123, 125-132, and 134-145 are radioactive cesium isotopes.
A member of the alkali metals. It has an atomic symbol Cs, atomic number 50, and atomic weight 132.91. Cesium has many industrial applications, including the construction of atomic clocks based on its atomic vibrational frequency.
Isotopes that exhibit radioactivity and undergo radioactive decay. (From Grant & Hackh's Chemical Dictionary, 5th ed & McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed)
Stable cesium atoms that have the same atomic number as the element cesium, but differ in atomic weight. Cs-133 is a naturally occurring isotope.
Unstable isotopes of zinc that decay or disintegrate emitting radiation. Zn atoms with atomic weights 60-63, 65, 69, 71, and 72 are radioactive zinc isotopes.
Method for assessing flow through a system by injection of a known quantity of radionuclide into the system and monitoring its concentration over time at a specific point in the system. (From Dorland, 28th ed)
Unstable isotopes of strontium that decay or disintegrate spontaneously emitting radiation. Sr 80-83, 85, and 89-95 are radioactive strontium isotopes.
Unstable isotopes of iodine that decay or disintegrate emitting radiation. I atoms with atomic weights 117-139, except I 127, are radioactive iodine isotopes.
Unstable isotopes of krypton that decay or disintegrate emitting radiation. Kr atoms with atomic weights 74-77, 79, 81, 85, and 87-94 are radioactive krypton isotopes.
Pollutants, present in soil, which exhibit radioactivity.
Unstable isotopes of indium that decay or disintegrate emitting radiation. In atoms with atomic weights 106-112, 113m, 114, and 116-124 are radioactive indium isotopes.
Unstable isotopes of sodium that decay or disintegrate emitting radiation. Na atoms with atomic weights 20-22 and 24-26 are radioactive sodium isotopes.
The spontaneous transformation of a nuclide into one or more different nuclides, accompanied by either the emission of particles from the nucleus, nuclear capture or ejection of orbital electrons, or fission. (McGraw-Hill Dictionary of Scientific and Technical Terms, 6th ed)
Unstable isotopes of barium that decay or disintegrate emitting radiation. Ba atoms with atomic weights 126-129, 131, 133, and 139-143 are radioactive barium isotopes.
The production of an image obtained by cameras that detect the radioactive emissions of an injected radionuclide as it has distributed differentially throughout tissues in the body. The image obtained from a moving detector is called a scan, while the image obtained from a stationary camera device is called a scintiphotograph.
Determination of the energy distribution of gamma rays emitted by nuclei. (McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed)
Unstable isotopes of yttrium that decay or disintegrate emitting radiation. Y atoms with atomic weights 82-88 and 90-96 are radioactive yttrium isotopes.
Unstable isotopes of tin that decay or disintegrate emitting radiation. Sn atoms with atomic weights 108-111, 113, 120-121, 123 and 125-128 are tin radioisotopes.
Pollutants, present in water or bodies of water, which exhibit radioactivity.
Unstable isotopes of carbon that decay or disintegrate emitting radiation. C atoms with atomic weights 10, 11, and 14-16 are radioactive carbon isotopes.
Unstable isotopes of iron that decay or disintegrate emitting radiation. Fe atoms with atomic weights 52, 53, 55, and 59-61 are radioactive iron isotopes.
Unstable isotopes of copper that decay or disintegrate emitting radiation. Cu atoms with atomic weights 58-62, 64, and 66-68 are radioactive copper isotopes.
Nuclear power accident that occurred following the Tohoku-Kanto earthquake of March 11, 2011 in the northern region of Japan.
Unstable isotopes of phosphorus that decay or disintegrate emitting radiation. P atoms with atomic weights 28-34 except 31 are radioactive phosphorus isotopes.
High energy POSITRONS or ELECTRONS ejected from a disintegrating atomic nucleus.
The first artificially produced element and a radioactive fission product of URANIUM. Technetium has the atomic symbol Tc, atomic number 43, and atomic weight 98.91. All technetium isotopes are radioactive. Technetium 99m (m=metastable) which is the decay product of Molybdenum 99, has a half-life of about 6 hours and is used diagnostically as a radioactive imaging agent. Technetium 99 which is a decay product of technetium 99m, has a half-life of 210,000 years.
Unstable isotopes of mercury that decay or disintegrate emitting radiation. Hg atoms with atomic weights 185-195, 197, 203, 205, and 206 are radioactive mercury isotopes.
A gamma-emitting radionuclide imaging agent used for the diagnosis of diseases in many tissues, particularly in the gastrointestinal system, liver, and spleen.
Unstable isotopes of cerium that decay or disintegrate emitting radiation. Ce atoms with atomic weights 132-135, 137, 139, and 141-148 are radioactive cerium isotopes.
Stable cobalt atoms that have the same atomic number as the element cobalt, but differ in atomic weight. Co-59 is a stable cobalt isotope.
Separation of particles according to density by employing a gradient of varying densities. At equilibrium each particle settles in the gradient at a point equal to its density. (McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed)
Hafnium. A metal element of atomic number 72 and atomic weight 178.49, symbol Hf. (From Dorland, 28th ed)
Detection and counting of scintillations produced in a fluorescent material by ionizing radiation.
Unstable isotopes of potassium that decay or disintegrate emitting radiation. K atoms with atomic weights 37, 38, 40, and 42-45 are radioactive potassium isotopes.
Unstable isotopes of gold that decay or disintegrate emitting radiation. Au 185-196, 198-201, and 203 are radioactive gold isotopes.
Facilities that convert NUCLEAR ENERGY into electrical energy.
Techniques for labeling a substance with a stable or radioactive isotope. It is not used for articles involving labeled substances unless the methods of labeling are substantively discussed. Tracers that may be labeled include chemical substances, cells, or microorganisms.
Unstable isotopes of lead that decay or disintegrate emitting radiation. Pb atoms with atomic weights 194-203, 205, and 209-214 are radioactive lead isotopes.
Metals that constitute group 1(formerly group Ia) of the periodic table. They are the most strongly electropositive of the metals. Note that HYDROGEN is not considered an alkali metal even though it falls under the group 1 heading in the periodic table.
Any diagnostic evaluation using radioactive (unstable) isotopes. This diagnosis includes many nuclear medicine procedures as well as radioimmunoassay tests.
Stable zinc atoms that have the same atomic number as the element zinc, but differ in atomic weight. Zn-66-68, and 70 are stable zinc isotopes.
Unstable isotopes of sulfur that decay or disintegrate spontaneously emitting radiation. S 29-31, 35, 37, and 38 are radioactive sulfur isotopes.
Unstable isotopes of cadmium that decay or disintegrate emitting radiation. Cd atoms with atomic weights 103-105, 107, 109, 115, and 117-119 are radioactive cadmium isotopes.
Astatine. A radioactive halogen with the atomic symbol At, atomic number 85, and atomic weight 210. Its isotopes range in mass number from 200 to 219 and all have an extremely short half-life. Astatine may be of use in the treatment of hyperthyroidism.
A form species of spore-producing CYANOBACTERIA, in the family Nostocaceae, order Nostocales. It is an important source of fixed NITROGEN in nutrient-depleted soils. When wet, it appears as a jelly-like mass.
A number of different cardioactive glycosides obtained from Strophanthus species. OUABAIN is from S. gratus and CYMARINE from S. kombe. They are used like the digitalis glycosides.
Radiotherapy where cytotoxic radionuclides are linked to antibodies in order to deliver toxins directly to tumor targets. Therapy with targeted radiation rather than antibody-targeted toxins (IMMUNOTOXINS) has the advantage that adjacent tumor cells, which lack the appropriate antigenic determinants, can be destroyed by radiation cross-fire. Radioimmunotherapy is sometimes called targeted radiotherapy, but this latter term can also refer to radionuclides linked to non-immune molecules (see RADIOTHERAPY).
Lutetium. An element of the rare earth family of metals. It has the atomic symbol Lu, atomic number 71, and atomic weight 175.
Rhenium. A metal, atomic number 75, atomic weight 186.2, symbol Re. (Dorland, 28th ed)
Uncontrolled release of radioactive material from its containment. This either threatens to, or does, cause exposure to a radioactive hazard. Such an incident may occur accidentally or deliberately.
The material that descends to the earth or water well beyond the site of a surface or subsurface nuclear explosion. (McGraw-Hill Dictionary of Chemical and Technical Terms, 4th ed)
April 25th -26th, 1986 nuclear power accident that occurred at Chernobyl in the former USSR (Ukraine) located 80 miles north of Kiev.

Juvenile hypothyroidism among two populations exposed to radioiodine. (1/207)

We found an epidemic of juvenile hypothyroidism among a population of self-defined "downwinders" living near the Hanford nuclear facility located in southeast Washington State. The episode followed massive releases of 131I. Self-reported data on 60 cases of juvenile hypothyroidism (<20 years of age) among a group of 801 Hanford downwinders are presented, as well as data concerning the thyroid status of approximately 160,000 children exposed to radioiodine before 10 years of age as a result of the 26 April 1986 Chernobyl explosion in the former Soviet Union. These children were residents of five regions near Chernobyl. They were examined by standardized screening protocols over a period of 5 years from 1991 to 1996. They are a well-defined group of 10 samples. Fifty-six cases of hypothyroidism were found among boys and 92 among girls. Body burdens of 137Cs have been correlated with hypothyroidism prevalence rates. On the other hand, the group of juvenile (<20 years of age) Hanford downwinders is not a representative sample. Most of the 77 cases of juvenile hypothyroidism in the Hanford group were diagnosed from 1945 to 1970. However, the ratio of reported cases to the county population under 20 years of age is roughly correlated with officially estimated mean levels of cumulative thyroid 131I uptake in these counties, providing evidence that juvenile hypothyroidism was associated with radioiodine exposures. Because even subtle hypothyroidism may be of clinical significance in childhood and can be treated, it may be useful to screen for the condition in populations exposed to radioiodine fallout. Although radiation exposure is associated with hypothyroidism, its excess among fallout-exposed children has not been previously quantified.  (+info)

Fibroblast radiosensitivity measured using the comet DNA-damage assay correlates with clonogenic survival parameters. (2/207)

A study was made of the neutral comet assay as a potential method for measuring normal cell radiosensitivity. Eleven fibroblast strains were studied comprising nine derived from vaginal biopsies from pretreatment cervical cancer patients and two strains from radiosensitive individuals. DNA double strand break (dsbs) dose-response curves for both initial and residual (20-h repair time) damage were obtained over the dose range 0-240 Gy, with slopes varying 3.2 and 8-fold respectively. Clonogenic cell survival parameters were available for all the cell strains following both high- and low-dose rate irradiation. There were no correlations between the dose-response slope of the initial level of DNA dsbs and parameters that mainly describe the initial portion of clonogenic radiation survival curves (SF2, alpha, D). A significant correlation (r = -0.63, P = 0.04) was found between the extent of residual DNA dsbs and clonogenicity for all 11 fibroblast strains. The parameter showing the highest correlation with fibroblast cell killing (D) for the nine normal fibroblasts alone was the ratio of initial/residual DNA dsb dose-response slope (r = 0.80, P = < 0.01). A significant correlation (r = -0.67, P = 0.03) with clonogenic radiosensitivity was also found for all 11 cell strains when using the ratio of initial/residual DNA dsb damage at a single dose of 180 Gy. This study shows that fibroblast radiosensitivity measured using the neutral comet assay correlates with clonogenic radiation survival parameters, and therefore may have potential value in predictive testing of normal tissue radiosensitivity.  (+info)

Activation of the CD95 (APO-1/Fas) pathway in drug- and gamma-irradiation-induced apoptosis of brain tumor cells. (3/207)

Chemotherapeutic agents and gamma-irradiation used in the treatment of brain tumors, the most common solid tumors of childhood, have been shown to act primarily by inducing apoptosis. Here, we report that activation of the CD95 pathway was involved in drug- and gamma-irradiation-induced apoptosis of medulloblastoma and glioblastoma cells. Upon treatment CD95 ligand (CD95-L) was induced that stimulated the CD95 pathway by crosslinking CD95 via an autocrine/paracrine loop. Blocking CD95-L/receptor interaction using F(ab')2 anti-CD95 antibody fragments strongly reduced apoptosis. Apoptosis depended on activation of caspases (interleukin 1beta-converting enzyme/Ced-3 like proteases) as it was almost completely abrograted by the broad range caspase inhibitor benzyloxycarbonyl-Val-Ala-Asp-fluoromethyl ketone. Apoptosis was mediated by cleavage of the receptor proximal caspase FLICE/MACH (caspase-8) and the downstream caspase CPP32 (caspase-3, Apopain) resulting in cleavage of the prototype caspase substrate PARP. Moreover, CD95 was upregulated in wild-type p53 cells thereby increasing responsiveness towards CD95 triggering. Since activation of the CD95 system upon treatment was also found in primary medulloblastoma cells ex vivo, these findings may have implications to define chemosensitivity and to develop novel therapeutic strategies in the management of malignant brain tumors.  (+info)

Regulation of the human poly(ADP-ribose) polymerase promoter by the ETS transcription factor. (4/207)

Ewing's sarcoma (EWS) cells accumulate elevated steady-state levels of poly (ADP-ribose) polymerase (PARP) mRNA and protein. To understand the molecular mechanisms underlying PARP upregulation, we cloned and analysed the 5'-flanking region of the PARP gene from EWS cells. Nucleotide sequence analysis demonstrated no variations in the PARP promoter region in EWS cells. The PARP promoter encompasses multiple binding motifs for the ETS transcription factor. We have also observed that there is a coordinated up-regulation of the expression of both PARP and ETS1, relative to cells of other human tumor types expressing lower levels of PARP. Transient co-expression of ETS1 in EWS cells resulted in a strong enhancement of PARP-promoter activity. The participation of ETS in the regulation of PARP gene expression was further demonstrated in EWS cells stably transfected with Ets1 antisense cDNA constructs. Antisense-mediated down-regulation of endogenous ETS1 resulted in the inhibition of PARP expression in EWS cells, and sensitized these cells to ionizing radiation. These data provide support for ETS regulation of PARP expression levels, and implicate ETS transcription factors in the radiation response of EWS cells.  (+info)

Clinical evaluation of processing techniques for attenuation correction with 137Cs in whole-body PET imaging. (5/207)

Transmission scanning can be successfully performed with a 137Cs single-photon emitting point source for three-dimensional PET imaging. However, the attenuation coefficients provided by this method are underestimated because of the energy difference between 662- and 511-keV photons, as well as scatter and emission contamination when the transmission data are acquired after injection. The purpose of this study was to evaluate, from a clinical perspective, the relative benefits of various processing schemes to resolve these issues. METHODS: Thirty-eight whole-body PET studies acquired with postinjection singles transmission scans were analyzed. The transmission images were processed and applied to the emission data for attenuation correction. Three processing techniques were compared: simple segmentation (SEG) of the transmission scan, emission contamination subtraction with scaling (ECS) of the resulting data to 511-keV attenuation coefficient values and a hybrid technique performing partial segmentation of some tissue densities on the ECS scan (THR). The corrected emission scans were blindly assessed for image noise, the presence of edge artifacts at the lung-soft-tissue interface and for overall diagnostic confidence using a semiquantitative scoring system. The count densities and the SDs in uniform structures were compared among the various techniques. The observations for each method were compared using a paired t test. RESULTS: The SEG technique produced images that were visually less noisy than the ECS method (P < 0.0001) and the THR technique, but at the expense of increased edge artifacts at the boundaries between the lungs and surrounding tissues. The THR technique failed to eliminate these artifacts compared with the ECS technique (P < 0.0001) but preserved the activity gradients in the hilar areas. The count densities (and thus, the standardized uptake values) were similar among the three techniques, but the SEG method tended to underestimate the activity in the lung fields and in chest tumors (slope = 0.79 and 0.94, respectively). CONCLUSION: For many clinical applications, SEG data remain an efficient method for processing 137Cs transmission scans. The ECS method produced noisier images than the other two techniques but did not introduce artifacts at the lung boundaries. The THR technique, more versatile in complex anatomic areas, allowed good preservation of density gradients in the lungs.  (+info)

Environmental radioactivity, population exposure and related health risks in the east Baltic region. (6/207)

The paper considers radioactive contamination of the east Baltic region, population exposures, and the risk of damage to human health. Principal sources include global fallout, the Chernobyl accident, and marine transport of radionuclides. A mean annual exposure of 2-3 mSv comes from environmental radioactivity. Main contributors are primarily radon and its decay products. The Chernobyl accident brought an additional dose of about 0.5 mSv in southern Finland and 1.4 mSv in the most contaminated districts of the Leningrad region, Russia. Both external and internal exposure via contaminated food contributed. Currently, significant long-term radiological consequences of the Chernobyl accident include persistent radioactive contamination of natural terrestrial (forest) and freshwater (oligotrophic lakes) ecosystems and food products. Radiation health risks are lung cancer among the general population from indoor exposure to radon, acute radiation syndrome from occupational exposure, thyroid cancer among children in heavily contaminated non-Baltic areas, and mutations among offspring of exposed parents.  (+info)

Remote afterloading endocurie therapy for carcinoma of the cervix. (7/207)

Since October 1975, 41 cancer patients were treated with a remote afterloading device using fractionated high dose-rate intracavitary radiation. Nineteen of these 41 patients were treated for carcinoma of the cervix. Remote afterloading high dose-rate fractionated intracavitary radiation was given in combination with external irradiation. The dose fractionation and rad equivalent therapeutic (RET) values and various points of interest are discussed.  (+info)

Radiation-induced apoptosis of endothelial cells in the murine central nervous system: protection by fibroblast growth factor and sphingomyelinase deficiency. (8/207)

Injury to the central nervous system (CNS) by ionizing radiation may be a consequence of damage to the vascular endothelium. Recent studies showed that radiation-induced apoptosis of endothelial cells in vitro and in the lung in vivo is mediated by the lipid second messenger ceramide via activation of acid sphingomyelinase (ASM). This apoptotic response to radiation can be inhibited by basic fibroblast growth factor or by genetic mutation of ASM. In the CNS, single-dose radiation has been shown to result in a 15% loss of endothelial cells within 24 h, but whether or not this loss is associated with apoptosis remains unknown. In the present studies, dose- and time-dependent induction of apoptosis was observed in the C57BL/6 mouse CNS. Apoptosis was quantified by terminal deoxynucleotidyl transferase-mediated nick end labeling, and specific endothelial apoptosis was determined by histochemical double labeling with terminal deoxynucleotidyl transferase-mediated nick end labeling and Lycopersicon esculentum lectin. Beginning at 4 h after single-dose radiation, apoptosis was ongoing for 24 h and peaked at 12 h at an incidence of 0.7-1.4% of the total cells in spinal cord sections. Up to 20% of the apoptotic cells were endothelial. This effect was also seen in multiple regions of the brain (medulla, pons, and hippocampus). A significant reduction of radiation-induced apoptosis was observed after i.v. basic fibroblast growth factor treatment (0.45-4.5 microg/mouse). Identical results were noted in C3H/HeJ mice. Furthermore, irradiated ASM knockout mice displayed as much as a 70% reduction in endothelial apoptosis. This study demonstrates that ionizing radiation induces early endothelial cell apoptosis throughout the CNS. These data are consistent with recent evidence linking radiation-induced stress with ceramide and suggest approaches to modify the apoptotic response in control of radiation toxicity in the CNS.  (+info)

The present invention provides a method for improving the recovery of cesium-131 (Cs-131) from barium (Ba) carbonate. Uses of the Cs-131 purified by the method include cancer research and treatment, such as for the use in brachytherapy. Cesium-131 is particularly useful in the treatment of faster growing tumors.
EWGs Tap Water Database Cesium-134 results for Millersview-doole Water Supply Corporation | Cesium-134. Find out what is in your tap water
Fukushima reactor No. 4 vulnerable to catastrophic collapse; could unleash 85 times Cesium-137 radiation of Chernobyl; human civilization on the brink The news you are about to read puts everything else in the category of insignificant by comparison. Concerned about the 2012 U.S. presidential election? Worried about GMOs? Fluoride? Vaccines? Secret prisons? None of that…
The address of the location is announced by the city as: 柏市根戸字高野台457番3地先. According to the residents, the place is a strip of open space between the residential area and the industrial area, and is used as playground by many residents, young and old.. On receiving the result of the analysis, the Ministry of Education and Science, who had expressed doubt that this high radiation spot in Kashiwa had anything to do with the Fukushima I Nuclear Power Plant accident, now says it cannot deny that it is the result of the accident. The ratio of cesium-134 and cesium-137 is consistent with the radio from the accident.. Some speculate that someone in the city cleaned out his house and dumped the resulting radioactive sludge and dirt in this location.. What I find it odd is the mismatch of the radiation on the dirt surface, 57.5 microsieverts/hour, and the density of radioactive cesium, maximum 276,000 becquerels/kilogram. The density is too low to account for the extremely high ...
Contaminants Released, Chernobyl. A retrospective view of the Chernobyl accident of Apr 26, 1986 assesses the total radiation release at about 100 megaCuries or 4 x 1018 becquerels, including some 2.5 MCi of cesium-137. The cesium is the most serious release in terms of long term consequences. The total release was around 4% of the total accumulated activity of the core and compares to a release of 15 Ci at Three Mile Island. The release was then about 7 million times that at TMI. Anspaugh, et al. suggest that essentially all the noble gases and about half of the volatile elements (iodine-131, cesium-134 and cesium-137) were released. The cesium release from all of the atmospheric weapons tests is estimated to be about 30 MCi. The noble gas releases were estimated by Levi to be 45 MCi of xenon-133 and 5 MCi of krypton-85. About 3-5% of the core inventory of the relatively refractory elements such a strontium, plutonium, and ruthenium were released, much more than from a light water reactor ...
Cesium-133 chemical shifts were measured in a number of solvents as a function of salt concentration and of the counterion. Infinite-dilution chemical shif
Cesium Radioisotopes: Unstable isotopes of cesium that decay or disintegrate emitting radiation. Cs atoms with atomic weights of 123, 125-132, and 134-145 are radioactive cesium isotopes.
IsoRay Inc. (NYSE MKT: ISR), a medical technology company and innovator in seed brachytherapy and medical radioisotope applications, today announced the presentation of clinical findings at two medical centers of the successful treatment of brain cancers and tumors using IsoRays patented Cesium-131 (Cs-131) sutured seeds and seed sutured mesh for internal radiation therapy.
IsoRay announced the presentation of clinical findings at two medical centers of the successful treatment of brain cancers and tumors using IsoRays patented Cesium-131 sutured seeds and seed sutured mesh ...
The half-life of cesium-137 is 30 years. Suppose we have a 120 mg sample. (a) Find the mass that remains after t years.These systems die off in prop...
Himes G, Kightlinger J, Vick D, Dunn W, Malak J. Cardiac scans with cesium-131: findings confirmed at autopsy in five patients. J Am Osteopath Assoc 1966;66(2):131. doi: https://doi.org/.. Download citation file:. ...
And so it has arrived. Without much fanfare, a news reporter stood on the beach in the early morning darkness, staring out to sea, as if expecting to see Cesium-137 washing ashore. Instead, she smiled, blinking, and went on discussing something she knew nothing about, while standing next to the sea. It took a week,…
RADIOACTIVE CESIUM and Chemtrail Spraying Information. Chemtrail Information Center for California. What are Chemtrails? What you can do to protect your family. What you can do to help stop Chemtrail spraying in California. Stop Chemtrail Spraying in Cali!ornia. Report Chemtrail Spraying in California. Biological & Chemicals Agents on U. S. Citizens is Illegal! Get active! Where to call to complain about Chemtrail spraying in California. >!
Radioactive fallout from the Chernobyl accident affected parts of central Norway to a considerable extent, in particular the 134Cs+137Cs deposition had a significant impact on the natural environment. When this became apparent, a comprehensive radioecological research programme was initiated in order to study the behaviour of radiocaesium in boreal and alpine ecosystems, with emphasis on food-chains leading to exposure of species used for human consumption, i.e., reindeer and freshwater fish. In this paper results from the terrestrial part of this research programme during the period 1986-1990 are presented. The work was mainly confined to the mountain areas of Dovre and Rondane. Parallel studies were performed in eutrophic and strongly oligotrophic communities. The influence of local variations in topography and microclimate on the observed radiocaesium levels in topsoils, lichens and vascular plants was studied in detail. Currently a significant re-distribution of radiocaesium from the ...
An oil exploration firm has taken new security measures after the alleged theft of potentially lethal radioactive material last month, the head of the company said.However, a state health official
In an unprecedented food monitoring advertising campaign for radionuclides, japan government took action to secure food safety following the Fukushima nuclear incident (Mar. decreased quickly then, once again in Sept 2011 but peaked, which was mainly because of boar meat (a known accumulator of radiocesium). Tap water was less contaminated; any restrictions for tap water were canceled by April 1, 2011. Pre-Fukushima 137Cs and 90Sr levels (resulting from atmospheric nuclear explosions) in meals had been typically less than 0.5 Bq/kg, whereby meat was typically higher in 137Cs and vegetarian generate was usually higher in 90Sr. The relationship of history radiostrontium and radiocesium indicated which the regulatory assumption following the Fukushima incident of a optimum activity of 90Sr getting 10% from the particular 137Cs concentrations may shortly be in danger, as the 90Sr/137Cs proportion increases as time passes. This should be studied into consideration for the existing Japanese meals ...
RE: CBS, a complicated ownership arrangement. KPIX may still be owned by Westinghouse, builder of nuke plants). This might explain the Fuku-denialism & denial of radiation in West Coast waters of the U.S. Controlling interest now held by one individual. Fr. Wikipedia:. In 1994, Westinghouse signed a long-term affiliation deal to affiliate all five of its Group W TV stations with CBS.[113][114] Of the other four stations, two of the stations (KPIX in San Francisco and KDKA-TV in Pittsburgh) had been decades-long affiliates of the network, while KYW-TV in Philadelphia and WBZ-TV in Boston were NBC affiliates. The network decided to sell off existing O&O WCAU, which would eventually be purchased by NBC, despite at the time being much higher rated locally than KYW-TV. While WJZ-TV and WBZ-TV switched to CBS in January 1995, the swap was delayed in Philadelphia when CBS discovered that an outright sale of channel 10 would have forced it to pay massive taxes on the proceeds from the deal. To solve ...
On 2/7/2015, Tepco announced they detected a rapid increase in Cesium-134/137 level of groundwater.. The sample was taken from Reactor 3 seaside.. According to Tepco, the Cesium-134/137 density was 1,390 Bq/m3 from the previous analysis on 2/4/2015. However it increased to 23,200 Bq/m3 from the test of 2/6/2015, which is 17 times much as the previous reading.. This is the highest reading from this well.. Reactor 3 seaside is surrounded by underground wall to isolate from the sea. However this boring well is located outside of the wall.. The rapid increase in Cs-134/137 density strongly suggests the possibility that contaminated water overflowed the underground wall. However Tepco hasnt even mentioned the wall in their announcement.. Also on their daily report, Tepco hasnt updated this highest level of the density either.. http://www.tepco.co.jp/cc/press/2015/1248022_6818.html. http://www.tepco.co.jp/nu/fukushima-np/f1/smp/2015/images/2tb-east_15020701-j.pdf. ...
Description: Crystalline silicotitanate (CST) is an ion-exchange method for removing radioactive cesium from tank waste to allow the separation of the waste into high- and low-level fractions. The CST, originally developed Sandia National Laboratories personnel in association with Union Oil Products Corporation, has both a high affinity and selectivity for sorbing cesium-137 from highly alkaline or acidic solutions. For several years now, the U.S. Department of Energy has funded work to investigate applying CST to large-scale removal of cesium-137 from radioactive tank wastes. In January 1997, an expert panel sponsored by the Tanks Focus Area met to review the current state of the technology and to determine whether it was ready for routine use. The review also sought to identify any technical issues that must be resolved or additional CST development that must occur before full implementation by end-users. The CST Gate Review Group concluded that sufficient work has been done to close ...
Watch the Video. In 1998, a company co-founded by Pacific Northwest National Laboratory (PNNL) retiree Lane Bray, an internationally recognized expert in medical isotopes, came to PNNL for technical assistance. The company, IsoRay Medical, Inc., now produces Cesium-131 radiochemical brachytherapy seeds used in facilities across the country to treat prostate and other cancers. The Cesium-131 seed offers a significantly shorter half-life than the two other isotopes commonly used for brachytherapy, allowing faster delivery of therapeutic radiation to the prostate gland, reduced incidence of common brachytherapy side effects, and lower probability of cancer cell survival. IsoRay literally started in Lane Brays basement, with about three employees, said Larry Greenwood, the Pacific Northwest National Laboratory (PNNL) technical lead for the IsoRay project. In 1998, Bray, a PNNL retiree and internationally recognized expert in medical isotopes and Don Segna, a retired engineer, formerly with the ...
The purpose of this study is to observe PSA response and incidence of side effects in patients diagnosed with intermediate to high risk prostate cancer
...concentrated radiation treatment in a tightly controlled area... really allows us to customize and individualize cancer treatment...
JpGU-AGU Joint Meeting 2017,Numerical study on sorption kinetics affecting vertical profile of radiocesium in soil and air dose rates
Several critical decisions had to be made to reach this day. Some were simple. For instance, Helix 6.2 will not support Classic at all. Helix 6.1 marks the end of Classic Helix. Its really a no-brainer. If your Helix application requires you to use a Classic Engine, RADE or Client, Helix 6.1.9 is the tool for you. It will let you run in macOS, but it will still allow you to use Classic on those machines in your workgroup that must do so.. Other decisions were not as simple. The decision to make Helix AppleScriptable was such a decision. We knew it had the potential to put off a significant part of the user base, but it was the simplest and fastest way to make Helix RADE in particular work in macOS and the option with the most legs.. The Macintosh is now a well-established and serious business machine in lots and lots of industries. And being able to run Windows on a Mac has spurred additional Macintosh sales. With AppleScript playing an increasingly important role the Macintosh, Helix being ...
DEN SÅRADE PIANISTEN i Tidningsarkivet. Ett digitalt arkiv för svenska tidningar och tidskrifter. Här finns bland annat omslag och innehållstexter för DEN SÅRADE PIANISTEN.
Radioactive cesium of up to 30.8 becquerels per kilogram has been found in baby formula manufactured and sold by Meiji Co., sources familiar with the matter said Tuesday, citing a sampling by the major food company.
Some recent news stories have claimed that the amount of Cesium-137 released by the Fukushima disaster in Japan has been half what was released at Chernobyl. Some news sources have suggested that this is an encouraging figure, but it looks
This page provides high-level guidance on purchasing and receiving radioactive material. The purchase of radioactive materials must comply with 290-75 of the UC Davis Policy and Procedure Manual. We recommend that you bookmark and review the policy if you will be regularly purchasing radioactive material.
One of the most infamous symbols of life-threatening pollution is the Chernobyl reactor, which suffered a meltdown in April 1986. To this day, the settlements closest to the reactor site remain depopulated ghost towns; however, the explosion sent a radioactive cloud over most of Europe, and many regions received a fallout level that, while not quite serious enough to require permanent evacuation, is still more than enough to blight local ecosystems and human communities with radiation poisoning. 110 miles away is the region of Bryansk, of which nearly 2 million acres received a heavy dose of fallout pollution, primarily Cesium-137. Hundreds of thousands of people still inhabit this largely agricultural area, and the greatest danger they face is the ingestion of radioactive particles (or radionuclides) that have accumulated in the meat, fat, and milk of local cattle, as well as the produce from local farms and gardens. In some provinces over 20% of all dairy milk is dangerously contaminated. ...
3.2 Internal Exposure Monitoring. Personnel who work at workplaces or environment of which the present of unseal sources or contamination is confirmed are required to undergo internal exposure monitoring. Working with contaminated environment and improper way of working with unsealed sources might lead to intake of the radioactive material which results in internal contamination. The ingress of radioactive materials into the body is through ingestion, inhalation, skin and open wound. In order to assess the intake of radioactive substance in the body, a special instrumentation is used.. Two common methods used to measure internal contamination are direct method and indirect method. Direct method commonly used in whole body counter while indirect method in bioassay. Direct method is a method where the radiation dose is measured directly using measuring instruments. In the other hand, indirect method will require samples namely urine, faeces or sweat. These samples will be analyse in laboratory to ...
Article Experimental determination of dose uniformity in the CDTN gamma irradiator. This paper describes an experimental study of dose uniformity within a container used for products irradiation, in the gamma irradiation facility at Nuclear Technolog...
Mexican authorities found a stolen truck and the dangerous radioactive material it was carrying and were working Wednesday to safely collect the substance which was removed from its protective casing,
Jan. 12, 2012If we told you there was a leak of radioactive material in your basement, youd get the hell out of that house. Youd probably get the hell out of that town. Weve learn...read more
Shop for—and learn—about vintage and antiques. Browse the best of eBay, connect with other collectors, and explore the history behind your favorite finds.
|ul| |li| CELLine AD 1000 Bioreactor Flask for high density adherent cell culture. |/li| |li| 1000ml media compartment 15 ml cell growth compartment for antibody and protein production. |/li| |li| Use with Hybridoma, Insect, CHO, NSO, HEK, BHK cell lines
|ul| |li| CELLine AD 1000 Bioreactor Flask for high density adherent cell culture. |/li| |li| 1000ml media compartment 15 ml cell growth compartment for antibody and protein production. |/li| |li| Use with Hybridoma, Insect, CHO, NSO, HEK, BHK cell lines
namespace System.Web.ClientServices.Providers { using System; using System.Security; using System.Security.Permissions; using System.Security.AccessControl; using System.Globalization; using System.Data; using System.Data.Common; using System.Data.OleDb; using System.IO; using System.Windows.Forms; using System.Data.SqlClient; using System.Reflection; using System.Diagnostics.CodeAnalysis; using System.Web.Resources; internal static class SqlHelper { private const string _SQL_CE_Tag = ,SQL/CE,; private const string _SQL_FILES_Tag = ,FILES,; private const string _SQL_CE_CONN_STRING = Data Source = ,SQL/CE,; private const string _Isolated_Storage_Tag = ,Isolated_Storage,; ///////////////////////////////////////////////////////////////////////////////// ///////////////////////////////////////////////////////////////////////////////// internal static string GetDefaultConnectionString() { return _SQL_FILES_Tag; } ...
Biohemijski markeri prvog i drugog trimestra, osim u skriningu hromozomopatija, pokazuju vaţnu i nesumnjivu povezanost sa maternalnim i fetalnim ishodom trudnoće kod pacijentkinja gde se radi o fetusu sa euplodnim brojem hromozoma. Smatra se da u osnovi najozbiljnijih komplikacija trudnoće, kao što su hipertenzija, abrupcija placente, intrauterusna restrikcija rasta ploda, mala telesna masa za gestacijsku dob i intrauterusna smrt ploda, osim sliĉnih faktora rizika, postoji i ishemijska bolest placente. Morfološke promene u graĊi placente direktno utiĉu na promenu u nivoima sekrecije biohemijskih markera:βHCG-a(beta humanog horionskog gonadotropina), PAPP-a (plasma protein A u vezi sa trudnoćom) u periodima od 11.do 14. nedelje, kao i HCG-a, AFP (alfa feto proteina), uE3 (nekonjugovanog estriola) i inhibina A u periodu od 16.do 19. nedelje gestacije. Raznolikost biohemijskih markera je velika, ali se prednost daje onima koji se rutinski rade u kliniĉkoj praksi, ranije detektuju nego ...
Všetko o CICAPLAST Balzam na pery , prípravky v rade Cicaplast od La Roche-Posay odporúčanom pre Pleť. Odborné poradenstvo zadarmo
There are examples of this type of complex conundrum in nature, in such things as trying to solve 22/7 (which is a never-ending decimal), and in determining the halflives of certain radioactive materials (isotopes), where one half of the material loses its radioactive potency over a certain period of time, but the residual amount keeps getting halved and never quite disappears. ...
Photo : Wikipedia. From Tepcos fish contamination report released on 7/18/2014, 370 Bq/Kg of Cesium-134 / 137 was measured from fish outside of Fukushima plant port.. Its Okamejei, a type of ray fish. The sampling date was 6/15/2014.. Tepco reports it was fished approx. 4km offshore of Kumagawa-river. It is assumed to be 5~6 km from Fukushima plant port.. Also 178 Bq/Kg of Cesium-134/137 was measured from another Okamejei sample taken outside of Fukushima plant port.. It is not clear how many other measurement results are covered up, however at least it is shown that Fukushima plant is still contaminating the creatures outside of its port.. http://www.tepco.co.jp/nu/fukushima-np/f1/smp/2014/images/fish02_140718-j.pdf. ...
With current news of additional radioactive leaks from the Fukushima nuclear power plants, the impact on the ocean of releases of radioactivity from the plants remains unclear.. But a new study by U.S. and Japanese researchers analyzes the levels of radioactivity discharged in the first four months after the accident.. It draws some basic conclusions about the history of contaminant releases to the ocean.. The study was conducted by Woods Hole Oceanographic Institution chemist Ken Buesseler and two colleagues based in Japan, Michio Aoyama of the Meteorological Research Institute and Masao Fukasawa of the Japan Agency for Marine-Earth Science and Technology.. They report that discharges from the Fukushima Dai-Ichi nuclear power plants peaked one month after the March 11 earthquake and tsunami that precipitated the nuclear accident, and continued through at least July.. Their study finds that the levels of radioactivity, while high, are not a direct threat to humans or marine life, but cautions ...
Nonessential elements enter/accumulate in trees at certain ratios via the same uptake/translocation systems as essential elements. This phenomenon may not only damage the ecosystem but also result in human health problems. As one such nonessential element, the fate of radiocesium in trees has been extensively studied after the nuclear accident at Fukushima in 2011. Here, to better our understanding of the fate of radiocesium in nature and contribute to plan countermeasures, a review based on recent data for the Fukushima accident will be explicated with historical experiences of the global fallout, the Chernobyl accident, and many laboratory studies. In particular, the effects of specific leaf ecology (deciduous and evergreen), types of radiocesium exposure (dry/wet depositions or root uptake), and decomposition of litter on the fate of radiocesium will be precisely described with a specific uptake/translocation system of potassium, which can be recognized as the most possible entrance of radiocesium
Radioactive cesium from the 2011 Fukushima disaster is still being detected in citrus and other plants as far away as Florida, according to a report sent to the U.S. Nuclear Regulatory Commission (NRC). In March 2011, multiple nuclear meltdowns took place at the Fukushima Daiichi plant in Japan. The explosions ejected massive amounts of radioactive material into the environment, most notably radioactive cesium isotopes. In the weeks after the disaster, winds carried airborne radionuclides to every corner of the globe. Most of the radioactivity, however, settled into the Pacific Ocean.The report is Duke Energy Floridas Annual Radiological Environmental Operating Report to U.S. NRC, dated May 5. It notes that immediately following the Fukushima disaster, radioactive iodine and cesium from the plant were detected in Florida vegetation. The Japanese event also affected broad leaf vegetation sample media throughout the year as long-lived radionuclides (Cs-137) were released at Fukushima multiple ...
By Fan-Yee Suen, CTV News More than two years after a massive earthquake and tsunami destroyed the Fukushima Dai-ichi nuclear power plant in Japan, public confidence in the plants operators continues to sink as fresh leaks are being discovered in the plants defence system.
Naraha became the first evacuated town to reopen since the March, 2011 disaster, when a tsunami slammed into the Fukushima Dai-ichi nuclear power plant, causing meltdowns and a massive radiation leak.
Fukushima News. Summaries of the reports from Japans Press, which admits it is 94% antinuclear and calls the Fukushima accident a nuclear disaster.
Statement: Japanese civil society requests that the reports of the United Nations Scientific Committee on Fukushima be revised 日本の64の市民団体が福島事故に関しての国連科学の報告内容を改訂するよう要請 www.http://hrn.or.jp/eng/a tivity/area/worldwide/japanese-civil-society-requests-that-the-reports-of-the-united-nations-scientific-committee-on-fukus/ Anand Grover, Esq., UN Special Rapporteur on the right to health, criticizes UNSCEAR report on Fukushima -10/24/2013 (1 of 4)国連「健康に対する権利「の特別報告者のアナンドヵグローバー氏: 国連科学の報告を批判 Video - http://vimeo.com/78483070 October 24, 2013 (NYC, NY) *Medical experts criticize UNSCEAR report for playing down consequences of Fukushima nuclear accident ドイツの専門家が国連科学の報告書を 。福島事故の影響を過小評価している。と批判! ...
Naoto Morimura, Yasushi Asari, Yoshihiro Yamaguchi, Kazunari Asanuma, Choichiro Tase, Tetsuya Sakamoto, Tohru Aruga, Members of the Japanese Association for Acute Medicine, Emergency, Task Force on the Fukushima Nuclear Power Plant Accident (JAAM-TF-FNPPA) ...
An experiment was carried out to provide a data set specifically designed to allow the development of a model to describe the dynamic behaviour of radiocaesium in sheep tissues. A single intraruminal dose of 134CsCl was given to each of 15 Scottish Blackface ewes, aged 1-2 years. Radiocaesium activity concentrations were measured at various time intervals after dosing in blood, faeces and urine and, after slaughter, in a range of tissues and digestive tract contents. A first order compartment model was developed comprising nine compartments representing various organs and tissues in the body. Rate constants for the model were obtained by optimisation to the experimental results. A limited validation of the model was carried out by using it to calculate tissue transfer coefficients (Ff) and biological half-lives (0.5) of radiocaesium in sheep. The values generated compare favourably with published figures. Applications for the model and constraints on its usage are examined along with ...
Author: Koulikov, Alexei O. / Meili, Markus. Reference: Journal of Environmental Radioactivity, 66 (3), p.309-326, Jan 2003. doi: 10.1016/S0265-931X(02)00134-0. Keywords: Modelling; Radiocaesium; Fish; Chernobyl. Abstract: After the sudden fallout from the Chernobyl nuclear accident in 1986, activities and bioaccumulation factors of radiocaesium (137Cs, 134Cs) fluctuated strongly over several years before reaching quasi-equilibrium, with patterns significantly differing among organisms.. URL: http://www.sciencedirect.com/science/article/pii/S0265931X02001340. ...
The researchers insisted that the levels detected so far are not high enough to be particularly dangerous to humans or marine life. As an example, even if they were twice as high and I was to swim there every day for an entire year, the dose I would be exposed to is a thousand times less than a single dental X-ray, Buesseler said.. So the risk [from radiation exposure] is never zero, but when I think of health risk, I always think of the Japanese side of the Pacific instead of ours.. Radioactive cesium from the Fukushima disaster is likely to keep arriving at the North American coast, he said. Predicting the spread of radiation becomes more complex the closer it gets to the coast.. According to a 2013 study by the Nansen Environmental and Remote Sensing Center in Norway, the main part of the radioactive ocean plume from the Fukushima disaster is likely to hit the North American west coast in 2017, with maximum concentrations of radioactivity arriving in 2018. The model showed the bulk of ...
Despite a lack of widespread media coverage and TEPCOs reassurances that things are under control, there is concern that the nuclear disaster at Fukushima - already one of the worst nuclear disasters in human history - is quickly growing even worse.. PBS News reported last year that more than 80 percent of the radioactivity from the three damaged reactors was released into the Pacific Ocean, as 300 tons of radioactive water have leaked from the reactors every day since an earthquake and subsequent tsunami crippled the plant in 2011.. The Pacific Ocean may have diluted much of the radiation, due to its massive volume, yet radiation and debris from the disaster have been detected along the western coast of Canada and the United States. Traces of Fukushima radiation were first detected in early 2015, when trace amounts of cesium-134 and cesium-137 appeared in samples collected near Vancouver Island. Then, in December of last year, researchers at the Woods Hole Oceanographic Institution detected ...
Statement: Japanese civil society requests that the reports of the United Nations Scientific Committee on Fukushima be revised 日本の64の市民団体が福島事故に関しての国連科学の報告内容を改訂するよう要請 www.http://hrn.or.jp/eng/a tivity/area/worldwide/japanese-civil-society-requests-that-the-reports-of-the-united-nations-scientific-committee-on-fukus/ Anand Grover, Esq., UN Special Rapporteur on the right to health, criticizes UNSCEAR report on Fukushima -10/24/2013 (1 of 4)国連「健康に対する権利「の特別報告者のアナンドヵグローバー氏: 国連科学の報告を批判 Video - http://vimeo.com/78483070 October 24, 2013 (NYC, NY) *Medical experts criticize UNSCEAR report for playing down consequences of Fukushima nuclear accident ドイツの専門家が国連科学の報告書を 。福島事故の影響を過小評価している。と批判! ...
An estimated 14,000 excess deaths in the United States are linked to the radioactive fallout from the disaster at the Fukushima nuclear reactors in Japan, according to a major new article in the December 2011 edition of the International Journal of Health Services. This is the first peer-reviewed study published in a medical journal documenting the health hazards of Fukushima.Authors Joseph Mangano and Janette Sherman note that their estimate of 14,000 excess U.S. deaths in the 14 weeks after the Fukushima meltdowns is comparable to the 16,500 excess deaths in the 17 weeks after the Chernobyl meltdown in 1986. The rise in reported deaths after Fukushima was largest among U.S. infants under age one. The 2010-2011 increase for infant deaths in the spring was 1.8 percent, compared to a decrease of 8.37 percent in the preceding 14 weeks.The IJHS article will be published Tuesday and will be available online as of 11 a.m. EST at http://www.radiation.org . Just six days after the disastrous meltdowns ...
In an unprecedented food monitoring campaign for radionuclides, the Japanese government took action to secure food safety after the Fukushima nuclear accident (Mar. 11, 2011). In this work we analyze a part of the immense data set, in particular radiocesium contaminations in food from the first year after the accident. Activity concentrations in vegetables peaked immediately after the campaign had commenced, but they decreased quickly, so that by early summer 2011 only a few samples exceeded the regulatory limits. Later, accumulating mushrooms and dried produce led to several exceedances of the limits again. Monitoring of meat started with significant delay, especially outside Fukushima prefecture. After a buildup period, contamination levels of meat peaked by July 2011 (beef). Levels then decreased quickly, but peaked again in September 2011, which was primarily due to boar meat (a known accumulator of radiocesium). Tap water was less contaminated; any restrictions for tap water were canceled ...
SIGNS AND SYMPTOMS/ /ACUTE RADIATION SYNDROME/ Fifty persons involved in the cesium-137 accident in Goiania showed symptoms of whole-body and local acute irradiation and also external or internal contamination mainly due to ingestion or absorption of cesium-137. Fourteen of the 50 developed severe bone marrow depression characterized by neutropenia and thrombocytopenia. Eight of these 14 received GM-CSF intravenously. None were submitted to bone marrow transplantation. Four of the 14 died due to hemorrhage and infection. For those with significant internal contamination evaluated by in-vitro and in-vivo assays, Prussian Blue was administered with doses ranging from 1.5 to 10 g/day. Besides Prussian Blue, other measures were taken to increase decorporation of cesium-137, including administration of diuretics, water overload, and ergometric exercises. From 50 to 100 persons are being followed in a medical protocol ...
The corporate media is again ignoring a major and potentially catastrophic development at the Fukushima nuclear plant in Japan.. Kyodo News reported on March 15 that that the clarity of water inside the spent fuel pool of the No. 4 unit may have deteriorated based on a survey conducted by a camera, according to Tokyo Electric Power Co., the plant operator.. TEPCO said visibility in the pool is only about 1 meter, far less than the approximately 7 meters needed to work at removing nuclear fuel from the pool as part of the process of scrapping the four reactors severely damaged by last years nuclear accident.. One month ago, TEPCO was able to see approximately five meters into the spent fuel pool water.. The spent fuel rods pose considerable hazard. In order to reduce decay heat, the rods must remain submerged in circulating water. If exposed to air, they combust and release large amounts of radioactive cesium-137.. Following the earthquake and tsunami that damaged the Fukushima plant last ...
is on the way.... Nature has an article about it, here are some highlights.. The risk to the roughly 140,000 civilians who had been living within a few tens of kilometres of the plant seems even lower. Because detailed radiation measurements were un available at the time of the accident, the WHO estimated doses to the public, including radiation exposure from inhalation, ingestion and fallout. The agency concludes that most residents of Fukushima and neighbouring Japanese prefectures received a dose below 10 mSv. Residents of Namie town and Iitate village, two areas that were not evacuated until months after the accident, received 10-50 mSv. The government aims to keep public exposure from the accident below 20 mSv per year, but in the longer term it wants to decontaminate the region so that residents will receive no more than 1 mSv per year from the accident.. The WHOs calculations are consistent with several health surveys conducted by Japanese scientists, which found civilian doses at or ...
Infant girls exposed in the worst-affected area also have a 6 percent higher risk of breast cancer, and a 4 percent increase in the risk of developing any solid cancer, according to the report.. A study by Stanford University scientists last year found that radiation from the Fukushima nuclear plant may cause as many as 1,300 cancer deaths globally and as many as 2,500 cases of cancer, mostly in Japan. The WHO said it didnt have estimates on the number of people affected by radiation.. […]. The nuclear plant may have emitted about 900,000 terabecquerels of radiation into the air at the height of the disaster, Tepco said in May. The total radiation release at the 1986 Chernobyl accident in Ukraine was estimated to be about 5.2 million terabecquerels.. The Fukushima accident didnt last as long as that in Chernobyl, the geographic spread of radiation was less, and people were evacuated more quickly from 20 kilometers around the Dai-Ichi plant, Tritscher said. The evacuation was probably the ...
In February 2014, the number of confirmed and suspected cases of thyroid cancer among people aged 18 or below at the time of the accident rose to 75, compared with 59 at the end of last September. Of the current total, 33 cases have been confirmed as cancer.. Local health authorities have so far tested around 250,000 out of 375,000 Fukushima children and adolescents, who are due to be screened regularly throughout their lives.. Joseph Mangano, epidemiologist and executive director of Radiation and Public Health Project Research Group, did not rule out that the next few years will see more cancer cases among children living in the disaster-hit area.. The only study I know was held in Japan and it looked at about 200,000 children near Fukushima. Medics from Fukushima Medical University tested childrens thyroid glands because they are very sensitive to such chemicals as iodine. Thyroid cancer among children is very rare, but 72 children with suspected thyroid cancer have already been identified ...
Watch Video. On Friday, 1 April 2011, the IAEA provided the following information on the current status of nuclear safety in Japan:. 1. Current Situation. Overall at the Fukushima Daiichi plant, the situation remains very serious.. The Unit 1 condenser is full. In preparation for transferring water in the basement of the turbine building to the condenser, water in the condenser storage tank is being transferred to the suppression pool surge tank since 31 March, 03:00 UTC. Water in the trench was transferred to a water tank at the central environmental facility process main building. In order to prepare for removal of the water from the turbine building basement in Unit 2, pumping of water from the condenser to the suppression pool water surge tank started at 07:45 UTC, 29 March. For Unit 3 pumping of water from the condenser to suppression pool water surge tank was started at 08:40 UTC, March 28 and was completed at 23:37 UTC on 30 March.. For Unit 1 fresh water has been continuously injected ...
Radioisotopes of caesium require special precautions: the improper handling of caesium-137 gamma ray sources can lead to ... Caesium compounds are rarely encountered by most people, but most caesium compounds are mildly toxic. Like rubidium, caesium ... Caesium was also thought to be radioactive in the early 20th century, although it has no naturally occurring radioisotopes. ( ... Radioisotope Brief: Cesium-137 (Cs-137). U.S. National Center for Environmental Health The Radiological Accident in Goiânia. ...
"Radioisotope Brief: Cesium-137 (Cs-137)". Emergency Preparedness and Response. United States: Centers for Disease Control and ... The Agency detected radioactive caesium in both locations, and from the ratio of caesium-137 and caesium-134 and other ... This dust was found in Japanese car filters: they contained caesium-134 and caesium-137, and cobalt at levels as high as 3 nCi ... TEPCO have reported at three sites 500 meters from the reactors that the caesium-134 and caesium-137 levels in the soil are ...
The list cites air pollution by particulates, including radioisotopes strontium-90, and caesium-137; the metals nickel, copper ...
It is followed by caesium, iridium and palladium by mass and iridium, gold and platinum by volume. Carbon in the form of ... Per-kilogram prices of some synthetic radioisotopes range to trillions of dollars. Chlorine, sulfur and carbon (as coal) are ... The price listing for radioisotopes is not exhaustive. Background color shows category: 2000s commodities boom Density for 0 °C ...
"Cesium 'gun' - Byproduct used in new cancer weapon (1954) - on Newspapers.com". Newspapers.com. Retrieved 2016-11-12. "3 to ... Brucer told a conference that the use of radio-isotopes of iodine, gold and phosphorus was becoming increasingly commonplace. ... "Cesium-137 soon to fight cancer (1955) - on Newspapers.com". Newspapers.com. Retrieved 2016-11-13. "Tennessee Doctor Says ... In 1954, a new radiotherapy device using cesium as the gamma radiation source was scheduled to be tested in Rockford, Illinois ...
The caesium was found in the leaf veins, in the stem and in the apical leaves. It was found that 12% of the caesium entered the ... Just because a radioisotope is released it does not mean it will enter a human and then cause harm. For instance, the migration ... Caesium in humans normally has a biological half-life of between one and four months. An added advantage of the Prussian blue ... For example, caesium (Cs) binds tightly to clay minerals such as illite and montmorillonite, hence it remains in the upper ...
It is the most significant radioisotope left in the area around Chernobyl. Caesium-134 is found in spent nuclear fuel but is ... As caesium 133, 135, and 137 are formed by the beta particle decay of the corresponding xenon isotopes, this causes the caesium ... Caesium-137, with a half-life of 30 years, is the main medium-lived fission product, along with Sr-90. Cs-137 is the primary ... The strontium radioisotopes are very important, as strontium is a calcium mimic which is incorporated in bone growth and ...
A radiotherapy machine may have roughly 1000 Ci of a radioisotope such as caesium-137 or cobalt-60. This quantity of ...
20 to 40% of all core caesium-137 was released, 85 PBq in all. Caesium was released in aerosol form; caesium-137, along with ... The release of radioisotopes from the nuclear fuel was largely controlled by their boiling points, and the majority of the ... The four most harmful radionuclides spread from Chernobyl were iodine-131, caesium-134, caesium-137 and strontium-90, with half ... caesium and strontium. Iodine-131 was and caesium-137 remains the two most responsible for the radiation exposure received by ...
99mTc is a very versatile radioisotope, and is the most commonly used radioisotope tracer in medicine. It is easy to produce in ... The caesium isotope produced is unstable and decays to 123I. The isotope is usually supplied as the iodide and hypoiodate in ... The commonly used radioisotopes have short half lives and so do not occur in nature. They are produced by nuclear reactions. ... Radioisotopes of hydrogen, carbon, phosphorus, sulfur, and iodine have been used extensively to trace the path of biochemical ...
Prussian blue/radiogardase a chelation agent to treat radio-Cesium and thallium consumption, one of three the FDA ... Activated protein C. Chelation therapy a countermeasure for treating internal radio-isotope contamination. DPTA a chelation ...
Radioisotope heater unit Radioisotope rocket and nuclear electric rocket "A nuclear battery the size and thickness of a penny ... Caesium vapor is used to optimize the electrode work functions and provide an ion supply (by surface ionization) to neutralize ... An atomic battery, nuclear battery, radioisotope battery or radioisotope generator is a device which uses energy from the decay ... A Stirling radioisotope generator is a Stirling engine driven by the temperature difference produced by a radioisotope. A more ...
Stripping out the key radioisotope threatening health (caesium-137) from low-level waste could also dramatically decrease the ... The caesium is broken away from soil particles and then precipitated with ferric ferricyanide (Prussian blue). It would be the ... A goal is to find techniques that might be able to strip out 80 to 95% of the caesium from contaminated soil and other ...
Caesium-137 is one such radionuclide. It has a half-life of 30 years, and decays by beta decay without gamma ray emission to a ... With a short half-life of 8 days, this radioisotope is not of practical use in radioactive sources in industrial radiography or ... Cobalt-60 tends to be used in teletherapy units as a higher photon energy alternative to caesium-137, while iridium-192 tends ... Because both radium and radon are very radiotoxic and very expensive due to their natural rarity, these natural radioisotopes ...
The other xenon radioisotopes decay either to stable xenon, or to various caesium isotopes, some of them radioactive (a.o., the ... Any caesium atom present immediately oxidizes and passes into the water as Cs+. In order to eliminate any long-lived 135Cs and ... As with other radioisotopes of iodine, accidental iodine-125 uptake in the body (mostly by the thyroid gland) can be blocked by ... It is the second longest-lived radioisotope of iodine, after iodine-129. Its half-life is 59.49 days and it decays by electron ...
It is emitted by a radioisotope, usually cobalt-60 (60Co) or caesium-137 (137Cs), which have photon energies of up to 1.3 and ... Use of a radioisotope requires shielding for the safety of the operators while in use and in storage. With most designs, the ... Subatomic particles may be more or less penetrating and may be generated by a radioisotope or a device, depending upon the type ... One variant keeps the radioisotope under water at all times and lowers the product to be irradiated in the water in ...
... caesium-133. Caesium is mined mostly from pollucite, while the radioisotopes, especially caesium-137, a fission product, are ... Caesium or cesium is the chemical element with the symbol Cs and atomic number 55. It is a soft, silvery-gold alkali metal with ... Iridium radioisotopes are used in some radioisotope thermoelectric generators. Iridium is found in meteorites with an abundance ... Since then, caesium has been widely used in atomic clocks. Since the 1990s, the largest application of the element has been as ...
... instead involves the precise placement of short-range radiation-sources (radioisotopes, iodine-125 or cesium-131 ... The capsule may be removed later, or (with some radioisotopes) it may be allowed to remain in place. A feature of brachytherapy ... Brachytherapy contrasts with unsealed source radiotherapy, in which a therapeutic radionuclide (radioisotope) is injected into ... which allows the ionizing radiation to escape to treat and kill surrounding tissue but prevents the charge of radioisotope from ...
Gamma irradiation is produced from the radioisotopes cobalt-60 and caesium-137, which are derived by neutron bombardment of ... Conversely, caesium-137, is water-soluble and poses a risk of environmental contamination. Insufficient quantities are ... caesium-137 leaked into the source storage pool requiring NRC intervention has led to near elimination of this radioisotope. ... Additionally, gamma irradiation is significantly less expensive than using an X-ray source In most designs, the radioisotope, ...
... including caesium whose isotope caesium-137 emits about half of the heat produced by the spent fuel over the following 100 ... it is designed to completely remove the most troublesome radioisotopes (Sr, Cs and minor actinides) from the raffinate ... Many of the fission products (such as caesium, zirconium and strontium) remain in the salt. As alternatives to the molten ... The chemistry is based upon the interaction of caesium and strontium with polyethylene glycol and a cobalt carborane anion ( ...
On occasion, the radioisotope is a simple soluble dissolved ion, such as an isotope of gallium(III). Most of the time, though, ... cesium-137, barium-140 and europium-154) and activation products (chromium-51 and cobalt-58). These may be imaged using SPECT ... SPECT is more widely available, because the radioisotope used is longer-lasting and far less expensive in SPECT, and the gamma ... In the nuclear power sector, the SPECT technique can be applied to image radioisotope distributions in irradiated nuclear fuels ...
Subsequent failures can permit these radioisotopes to breach further layers of containment. Superheated steam and hot metal ... such as caesium-137, krypton-85, or iodine-131) within the fuel elements can leach out into the coolant. ...
All other radioisotopes have half-lives shorter than two weeks. The longest-lived isomer is 133mBa, which has a half-life of ... arises as the decay product of the common fission product caesium-137. Barium-114 is predicted to undergo cluster decay, ... Primordial radioisotope Believed to undergo β+β+ decay to 132Xe with a half-life over 300×1018 years Fission product Meija, ... There are a total of thirty-three known radioisotopes in addition to 130Ba. The longest-lived of these is 133Ba, which has a ...
Because the very short-lived radioisotopes and the relatively long-lived caesium isotopes are either absent or in low ... Hence the isotopic signature of an event where more than one radioisotope is involved will change with time. "Compared with ...
3H (tritium), the radioisotope of hydrogen, is available at very high specific activities, and compounds with this isotope in ... The chemistry is based upon the interaction of caesium and strontium with poly ethylene oxide (poly ethylene glycol) and a ... A short review of the biochemical properties of a series of key long lived radioisotopes can be read on line. 99Tc in nuclear ... Some early evidence for nuclear fission was the formation of a short-lived radioisotope of barium which was isolated from ...
Radioisotopes can be transformed directly through changes in valence state by acting as acceptors or by acting as cofactors to ... In this region of Ukraine, mustard greens could remove up to 22% of average levels of cesium activity in a single growing ... The radioisotope interact with binding sites of metabolically active cells and is used as terminal electron acceptor in the ... Several radioisotopes of strontium, for example, are recognized as analogs of calcium and incorporated within Micrococcus ...
More recently discovered radioisotopes, such as cobalt-60 and caesium-137, are replacing radium in even these limited uses ... Currently, safer and more available radioisotopes are used instead. Uranium had no large scale application in the late 19th ... and caesium. Solid radium compounds are white as radium ions provide no specific coloring, but they gradually turn yellow and ...
... carbon radioisotopes MeSH D01.496.156.300 - cerium radioisotopes MeSH D01.496.180.300 - cesium radioisotopes MeSH D01.496. ... carbon radioisotopes MeSH D01.496.749.185 - cerium radioisotopes MeSH D01.496.749.190 - cesium radioisotopes MeSH D01.496. ... iron radioisotopes MeSH D01.496.749.540 - krypton radioisotopes MeSH D01.496.749.560 - lead radioisotopes MeSH D01.496.749.590 ... xenon radioisotopes MeSH D01.496.749.960 - yttrium radioisotopes MeSH D01.496.749.980 - zinc radioisotopes MeSH D01.496.807.800 ...
... including cesium, >99.9%) and iodine ( >99% in elemental form) contained in the vented atmosphere. Historically in terms of ... accident usage, a primitive scrubber on a first generation gas cooled reactor, reduced the emission of radioisotopes from the ... along with volatile fission products such as Cesium and Iodine from the molten fuel, thereby increasing containment pressure. ...
... area at the base of the Sierra de Lema exhibits unusually high levels of the radioisotope Caesium-137, in both its soils and ... LaBrecque, J.J. & P.R. Cordoves (June 2005). Cesium-137 spatial activity in surface soils near and surrounding the Gurí ...
... www.epa.gov/rpdweb00/radionuclides/cesium.htmlexternal icon. ... Cesium-137 (Cs-137)plus icon *Radioisotope Brief. *Toxicology ...
Continuous monitoring of the concentration of natural and anthropogenic radioisotopes is of the utmost importance... ... Alboloushi A., Aba A., Alboloushi O. (2019) Cesium and Uranium Radioisotopes Monitoring in Kuwait Bay Seawater. In: Chaminé H ... Radioisotopes 137Cs, 234U, 238U AMP co-precipitation Gamma spectrometry Anion exchange Alpha spectrometry Radiological hazard ... Continuous monitoring of the concentration of natural and anthropogenic radioisotopes is of the utmost importance in the ...
Cs atoms with atomic weights of 123, 125-132, and 134-145 are radioactive cesium isotopes. ... Unstable isotopes of cesium that decay or disintegrate emitting radiation. ... Cesium Radioisotopes. Subscribe to New Research on Cesium Radioisotopes Unstable isotopes of cesium that decay or disintegrate ... 01/01/2004 - "It was shown that the chromosome instability and sensitivity to cesium radioisotopes increased and the ...
Cesium Radioisotopes - analysis Humans Japan Male Nuclear Reactors Potassium Radioisotopes - analysis Power Plants Radiation ... Cesium Radioisotopes - analysis Echinodermata - chemistry Strongylocentrotus Strontium Radioisotopes - analysis Svalbard Water ... Cesium Radioisotopes - analysis Child Child, Preschool Environmental Exposure Female Humans Male Nuclear Reactors Research ... Cesium Radioisotopes - analysis Chernobyl Nuclear Accident Cryptomeria Finland Fukushima Nuclear Accident Japan Pinus Plant ...
You searched for: Subject cesium radioisotopes Remove constraint Subject: cesium radioisotopes Journal Soil Science Society ... cesium radioisotopes, etc ; X-radiation; cations; potassium; sodium; vermiculite; Show all 6 Subjects. Abstract:. ... The ... cesium radioisotopes, etc ; agricultural watersheds; highlands; sediments; soil; soil erosion; Show all 6 Subjects. Abstract:. ... cesium radioisotopes, etc ; floodplains; plowing; runoff; sediments; soil; Show all 6 Subjects. Abstract:. ... Modern ...
You searched for: Subject cesium radioisotopes Remove constraint Subject: cesium radioisotopes Journal Journal of ... cesium radioisotopes, etc ; altitude; detection limit; radioactivity; soil; strontium; Show all 6 Subjects. Abstract:. ... The ... cesium radioisotopes, etc ; fractionation; fuels; half life; radioactivity; uranium; zinc; North Korea; Show all 8 Subjects. ... cesium radioisotopes, etc ; bioaccumulation; radioactivity; salamanders and newts; Savannah River Site; Show all 5 Subjects. ...
"After Fukushima, we got interested again in cesium, because the most volatile contaminant in radioactive materials is cesium," ... Radioisotope Scan Encyclopedia section of medindia gives general info about Nuclear Medicine ... Levels of Radioactive Cesium Found to be High Pacific Waters Under Fukushima Plant. Tokyo Electric Power Co. has found high ... Komarneni continued his work on cesium, this time with Della Roy, the wife of Rustum and an expert on cement. The material they ...
Radioisotope Brief. * Toxicology FAQs. Frequently asked questions from the Agency for Toxic Substances & Disease Registry ( ...
BETA DECAY RADIOISOTOPES; BETA-MINUS DECAY RADIOISOTOPES; CESIUM ISOTOPES; CHARGED PARTICLES; CLEANING; DATA; DATA FORMS; EVEN- ... 12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES; CESIUM 137; DIALYSIS; FISSION PRODUCTS; ... RADIOISOTOPES; RUTHENIUM ISOTOPES; SEPARATION PROCESSES; STRONTIUM ISOTOPES; TRANSITION ELEMENT COMPOUNDS; WASTE MANAGEMENT; ... RADIOACTIVE WASTE PROCESSING; RUTHENIUM 106; STRONTIUM 90; CATIONS; CESIUM COMPOUNDS; DECONTAMINATION; EFFICIENCY; ...
BETA DECAY RADIOISOTOPES; BETA-MINUS DECAY RADIOISOTOPES; CESIUM ISOTOPES; DOMESTIC ANIMALS; DOSES; ECOLOGICAL CONCENTRATION; ... CESIUM 137; DEPOSITION; FINLAND; FISHES; FOOD CHAINS; FRUITS; GOATS; INTERNATIONAL ORGANIZATIONS; LETTUCE; MILK PRODUCTS; ... RADIOISOTOPES; REACTORS; RUMINANTS; SCANDINAVIA; THERMAL REACTORS; VERTEBRATES; WATER COOLED REACTORS; YEARS LIVING ... RADIOISOTOPES 220900* -- Nuclear Reactor Technology-- Reactor Safety; 210300 -- Power Reactors, Nonbreeding, Graphite Moderated ...
Cesium-131 is particularly useful in the treatment of faster growing tumors. ... The present invention provides a method for improving the recovery of cesium-131 (Cs-131) from barium (Ba) carbonate. Uses of ... Radioisotope dispersed in a matrix for brachytherapy. US6608277. Jun 11, 2002. Aug 19, 2003. Bard Acquisition Sub. Inc.. ... Method for large scale production of cesium-131 with low cesium-132 content. ...
Radioisotopes; The catalytic metals; The electronic metals; Germanium; Tantalum; Caesium; Barium, beryllium, thallium and the ...
EVALUATION OF CUPRIMINE® AND SYPRINE® FOR DECORPORATION OF RADIOISOTOPES OF CESIUM, COBALT, IRIDIUM AND STRONTIUM. Levitskaia, ...
Cesium Radioisotopes / analysis* * Chernobyl Nuclear Accident * Environmental Monitoring * Geologic Sediments / analysis* * ...
Cesium-137 ((137)Cs) (t1/2=30.1 year), a water-soluble radionuclide with a long physical half-life, contaminates aquatic ... Administration, Oral; Adsorption; Animals; Calcium; Cesium Radioisotopes; Lanthanum; Male; Mice; Mice, Inbred Strains; Phytic ... Cesium-137 ((137)Cs) (t1/2=30.1 year), a water-soluble radionuclide with a long physical half-life, contaminates aquatic ...
We investigate the photodissociation of helium-solvated cesium dimer cations using action spectroscopy and quantum chemical ... Cesium Radioisotopes. Unstable isotopes of cesium that decay or disintegrate emitting radiation. Cs atoms with atomic weights ... Cesium Isotopes. Stable cesium atoms that have the same atomic number as the element cesium, but differ in atomic weight. Cs- ... Cesium. A member of the alkali metals. It has an atomic symbol Cs, atomic number 50, and atomic weight 132.91. Cesium has many ...
8.5 Long-Lived Radioisotopes: Lead-210 and Cesium-137.- 8.5.1 Distribution of 137Cs on Tundra and in Lake Sediments.- 8.5.2 ...
A double-tracer radioisotope approach to assess simultaneous bioaccumulation of caesium in the olive flounder Paralichthys ... A double-tracer radioisotope approach to assess simultaneous bioaccumulation of caesium in the olive flounder Paralichthys ...
... with ionizing radiation source of cesium-137 types GCs7.021.1, GC 7.012.8 and calibrating radioisotope densitometers on stands ... Calibrated radioisotope densitometers were used to determine the density of the pulp emulsion in the technological line of the ... The paper presents studies on the development of a method for calibrating a radioisotope level meter (Berthold Technologies ... Research on charging a radioisotope density meter (Endress + Hauser AG, Sweden) ...
0 (Cesium Radioisotopes); 0 (Potassium Radioisotopes); 0 (Radioactive Pollutants). [Em] M s de entrada:. 1711. ... Objective: The aim of the study was to determine the activity of radioactive cesium 137Cs isotope and potassium content, ... Activity of cesium 137Cs and potassium content in new potatoes imported to Poland. ... The activity of the 137Cs cesium isotope in imported new potatoes in most tested samples was at a very low level (below the ...
0 (Cesium Radioisotopes); 0 (Elements); 1KSV9V4Y4I (Cesium). [Em] M s de entrada:. 1802. ... Quantitative mapping of elements in basil leaves (Ocimum basilicum) based on cesium concentration and growth period using laser ...
Cesium Radioisotopes / therapeutic use* * Cobalt Radioisotopes / therapeutic use* * Dose Fractionation, Radiation * Endometrial ... cesium [Cs] 137) at 1 center. Perspex vaginal applicators or ovoids were normally used, and the dose was specified at 5 mm from ...
"CDC Radiation Emergencies , Radioisotope Brief: Cesium-137 (Cs-137)". CDC. Retrieved 5 November 2013. "Cesium , Radiation ... Caesium-137 reacts with water, producing a water-soluble compound (caesium hydroxide). The biological behaviour of caesium is ... as caesium from used nuclear fuel contains stable caesium and also long lived Cs-135. Also the higher specific activity caesium ... Caesium-137 (137 55Cs ), or radiocaesium, is a radioactive isotope of caesium that is formed as one of the more common fission ...
Radioisotopes of caesium require special precautions: the improper handling of caesium-137 gamma ray sources can lead to ... Caesium compounds are rarely encountered by most people, but most caesium compounds are mildly toxic. Like rubidium, caesium ... Caesium was also thought to be radioactive in the early 20th century, although it has no naturally occurring radioisotopes. ( ... Radioisotope Brief: Cesium-137 (Cs-137). U.S. National Center for Environmental Health The Radiological Accident in Goiânia. ...
Such a fire would release a potpourri of radioisotopes; particularly worrisome is the large amount of cesium 137 in spent fuel ... Cesium 137 gives off highly penetrating radiation and has a 30-year half-life, meaning it persists in the environment for a ... Of that, about 30 percent of the radio-cesium in the spent fuel (roughly 40 million curies) would be released-more than 150 ... cesium 137 continues to poison an area roughly half the size of the state of New Jersey, rendering it uninhabitable. To ...
Radiation Monitoring: The laboratory is capable of monitoring radioisotopes of Cesium in food products. ...
Cesium Radioisotopes · Dose-Response Relationship, Radiation · Gamma Rays · Genes, ras · Human · Mice · Radiation Tolerance · ...
Tens of millions of nuclear medicine procedures are performed each year, and demand for radioisotopes is increasing rapidly ... the use of radioisotopes for diagnostics, radiation therapy, radiopharmaceuticals and other beneficial medical uses of nuclear ... Caesium-131 (9.7 d): Used for brachytherapy, emits soft x-rays.. Caesium-137 (30 yr):. Used for low-intensity sterilisation of ... The global radioisotope market was valued at $9.6 billion in 2016, with medical radioisotopes accounting for about 80% of this ...
  • Unstable isotopes of cesium that decay or disintegrate emitting radiation. (curehunter.com)
  • Cs atoms with atomic weights of 123, 125-132, and 134-145 are radioactive cesium isotopes. (curehunter.com)
  • Caesium-137 (137 55Cs ), or radiocaesium, is a radioactive isotope of caesium that is formed as one of the more common fission products by the nuclear fission of uranium-235 and other fissionable isotopes in nuclear reactors and nuclear weapons. (wikipedia.org)
  • Caesium-137, along with other radioactive isotopes caesium-134, iodine-131, xenon-133, and strontium-90, were released into the environment during nearly all nuclear weapon tests and some nuclear accidents, most notably the Chernobyl disaster and the Fukushima Daiichi disaster. (wikipedia.org)
  • all other isotopes, including cesium-137, are produced by human activity. (globalresearch.ca)
  • Nor do these total numbers account for the release of other isotopes from lingering plant discharges, including strontium-90, which, although present in quantities much lower than cesium , is of concern: It accumulates in the bones offish that could be eaten. (thefreedictionary.com)
  • Madigan and his team focused on the two cesium isotopes because they don't decay quickly, unlike other radioisotopes released by the Fukushima disaster. (thefreedictionary.com)
  • The majority of the nuclear fallout, containing radioactive isotopes Iodine-131, Caesium-137 and Strontium-90, settled in the regions directly around the stricken power plant, in what is now northern Ukraine and southern Belarus. (geographical.co.uk)
  • The Strontium and Caesium isotopes have half-lives of 29 and 30 years respectively, but scientists have calculated that heavily contaminated areas will be dangerous for anything up to six centuries. (geographical.co.uk)
  • Radioactive isotopes of iodine ( 131 I and 129 I) and cesium ( 137 Cs) are important contaminants present in nuclear waste. (nrc.gov)
  • The level of radioactive cesium isotopes in the sample, 11 Becquerel's per cubic meter of seawater (about 264 gallons), is 50 percent higher than other samples collected along the West Coast so far, but is still more than 500 times lower than US government safety limits for drinking water, and well below limits of concern for direct exposure while swimming, boating, or other recreational activities. (eurekalert.org)
  • By comparing the relative concentrations of both isotopes they could figure out the source of the radioisotopes. (deepseanews.com)
  • The metal is extremely reactive and pyrophoric , reacting with water even at −116 °C (−177 °F). It is the least electronegative element that has stable isotopes, of which it has only one, caesium-133. (princeton.edu)
  • Some isotopes, like the Cesium radioactive isotope, are serious bad news. (debatepolitics.com)
  • You might have already started stocking up on iodine products like nascent iodine and potassium iodine, and these are all great options for protecting your thyroid from certain radioactive isotopes, but it won't help at all when it comes to cesium. (naturalnews.com)
  • Isoray's proprietary isotope, Cesium Blu, has a higher energy allowing for a more uniform dose distribution with less overdosing than other permanent isotopes. (isoray.com)
  • Isoray's proprietary isotope, Cesium Blu, has a shorter half-life than other commonly used isotopes for the treatment of cancer throughout the body, resulting in a shorter duration of radiation which contributes to a rapid resolution of patient side effects. (isoray.com)
  • In the years since the 2011 Fukushima Daiichi nuclear power accident, chemist Krzysztof Starosta and his team in SFU's Nuclear Science lab have been using high-resolution gamma-ray spectroscopy to search West Coast soil and salmon for signs of radioactive isotopes Cesium 134 and 137. (sfu.ca)
  • The amount of fuel burnup was similar for units 1, 2, and 3, and therefore the radioisotope mix for the cesium isotopes is similar for the three units. (pnas.org)
  • Gems are exposed to radiation emitted by Cobalt-60 or Cesium-137, both highly radioactive isotopes (or "radioisotopes") of these two elements. (palagems.com)
  • Radiation was released into the surrounding area, including the radio-isotopes caesium and iodine. (stopnuclearpoweruk.net)
  • It might be possible to use 137 Cesium as a photon source for radiography but this isotope has the disadvantage that it is always diluted with inactive cesium isotopes. (citizendium.org)
  • As an almost purely man-made isotope, caesium-137 has been used to date wine and detect counterfeits and as a relative-dating material for assessing the age of sedimentation occurring after 1945. (wikipedia.org)
  • Unlike most other radioisotopes, caesium-137 is not produced from its non-radioactive isotope, but from uranium. (globalresearch.ca)
  • That particular isotope of cesium , which has a half-life of about 30 years, is generated when atoms of uranium-235 and plutonium-239 undergo fission within bombs or nuclear reactors. (thefreedictionary.com)
  • If a nuclear catastrophe strikes, the radioactive isotope cesium-137 could pose a huge problem for humankind. (newstarget.com)
  • Almost any seawater sample from the Pacific will show traces of cesium-137, an isotope of cesium with a 30-year half-life, some of which is left over from nuclear weapons testing carried out in the 1950s to 1970s. (eurekalert.org)
  • The isotope cesium-134 is the "fingerprint" of Fukushima, but, with a 2-year half-life, it decays much quicker than cesium-137. (eurekalert.org)
  • A radionuclide ( radioactive nuclide , radioisotope or radioactive isotope ) is an atom that has excess nuclear energy, making it unstable. (wikipedia.org)
  • The radioactive isotope caesium-137 has a half-life of about 30 years and is used in medical applications, industrial gauges, and hydrology. (princeton.edu)
  • The importance of the shorter-lived cesium-134 isotope, Buesseler said, was that it offered definitive proof that the contamination had originated from Fukushima. (whoi.edu)
  • It has only one stable isotope, caesium-133 . (wikipedia.org)
  • It has a half life of 30 years and when it was released into the atmosphere at Chernobyl along with other radioactive elements including Cesium 134, Strontium 90 and Iodine 131 it also contaminated the soil and water supply. (menafn.com)
  • The testing found no detections of the Fukushima-related radioisotopes Iodine-131, Cesium-134, or Cesium-137. (akbizmag.com)
  • It came mostly in the form of iodine-131, cesium-134 and cesium-137, the primary radioisotopes released from the reactors, reported Ken Buesseler, a marine chemist at Woods Hole Oceanographic Institution. (whoi.edu)
  • The iodine-131 and caesium-137 from the Windscale disaster here in the UK decayed to nowt in. (madmaxmovies.com)
  • High levels of radioactive iodine-131 (with a half-life of about 8 days), cesium-137 (with a half-life of about 30 years), and cesium-134 (with a half-life of about 2 years) were measured in seawater adjacent to the Fukushima Dai-ichi site after the March 2011 events. (truth-out.org)
  • John J. Livingood and I discovered radioisotopes, including iodine-131 and cobalt-60, that are crucial to the diagnosis and treatment of many life-threatening diseases. (lbl.gov)
  • Metastable barium has a half-life of about 153 seconds, and is responsible for all of the gamma ray emissions in samples of caesium-137. (wikipedia.org)
  • In this work, a confirmation test for the LIBS measurement of cesium and barium based on the results of the disintegration of cesium is demonstrated as part of a preliminary survey for developing a monitoring system for actual radioactive materials. (springer.com)
  • Caesium, the fifth alkali metal, is the most reactive of all the metals. (wikipedia.org)
  • Caesium is the least abundant of the five non-radioactive alkali metals. (mcgill.ca)
  • [ note 2 ] Caesium is an alkali metal and has physical and chemical properties similar to those of rubidium and potassium . (princeton.edu)
  • For more information about Cs-137, see the Public Health Statement by the Agency for Toxic Substances and Disease Registry at http://www.atsdr.cdc.gov/toxprofiles/tp157.html , or visit the Environmental Protection Agency at http://www.epa.gov/rpdweb00/radionuclides/cesium.html external icon . (cdc.gov)
  • The paper presents studies on the development of a method for calibrating a radioisotope level meter (Berthold Technologies GmbH & Co. KG) under the conditions of the presence of natural radionuclides in the composition of gas condensate and powdered polyethylene intermediate product at the gas production enterprise of the JV «Uz-Kor Gas Chemical», «Ustyurt Gas Chemical Complex» (Kirk-kyz settlement, Republic of Karakalpakstan). (stumejournals.com)
  • The report was requested by Congress because of concerns that devices containing cesium-137 and other high-risk radionuclides could be stolen for use in a terrorist attack. (nationalacademies.org)
  • It was previously thought that only volatile, gaseous radionuclides such as caesium and iodine were released from the damaged reactors. (wattsupwiththat.com)
  • In the immediate aftermath of the Fukushima Daiichi nuclear accident, it was thought that only volatile, gaseous radionuclides, such as caesium and iodine, were released from the damaged reactors. (ekklesia.co.uk)
  • 2001. Cesium hydroxide. (cdc.gov)
  • Caesium-137 reacts with water, producing a water-soluble compound (caesium hydroxide). (wikipedia.org)
  • The paper 'Uranium Dioxides and Debris Fragments Released to the Environment with Cesium-Rich Microparticles from the Fukushima Daiichi Nuclear Power Plant' is being published in Environ Sci Technol . (wattsupwiththat.com)
  • particularly worrisome is the large amount of cesium 137 in spent fuel. (thebulletin.org)
  • Scientists back calculate traces of cesium-134 to determine how much was actually released from Fukushima in 2011 and add to it an equal amount of cesium-137 that would have been released at the same time. (eurekalert.org)
  • In order to evaluate the radiological safety of locally sourced desalinated water and seafood, the activity concentrations of Cesium-137 ( 137 Cs), Uranium-234 ( 234 U), and Uranium-238 ( 238 U) in Kuwait Bay seawater were measured. (springer.com)
  • 1990. Seasonal concentrations of cesium-137 in rumen content, skeletal muscles and feces of caribou from the porcupine herd: lichen ingestion rates and implications for human consumption. (cdc.gov)
  • The potency of a radioisotope is determined by its half-life, the time it takes for the radioactivity to decrease by a factor of two. (thedailystar.net)
  • But the long-term stability required of an appropriate storage site poses unique engineering, social, and political problems simply because the half-lives of most of the radioisotopes are so large that periods ranging from tens of thousands to up to a million years are required to minimise releases of the contained radioactivity into the environment. (thedailystar.net)
  • The new method allows scientists to quickly count the number of caesium-rich micro-particles in Fukushima soils and quantify the amount of radioactivity associated with these particles. (ekklesia.co.uk)
  • Dr Utsunomiya added: "we hope that our method will allow scientists to quickly measure the abundance of caesium-rich micro-particles at other locations and estimate the amount of caesium radioactivity associated with the particles. (ekklesia.co.uk)
  • This pilot clinical trial studies cesium Cs 131 brachytherapy in treating patients with head and neck cancer that has come back (recurrent) and can be removed by surgery. (bioportfolio.com)
  • Not all brachytherapy radioisotopes are the same. (isoray.com)
  • The word brachytherapy derives from the Greek prefix brachy, meaning "short" or "close," because the titanium capsules containing the radioisotope are implanted directly into the cancerous prostate gland. (isoray.com)
  • Pioneers in brachytherapy research initially theorized about the use of Cesium-131 in a titanium capsule, however scientific and economic limitations at the time prevented its development and Iodine-125 emerged as an alternative. (isoray.com)
  • Isoray's Blu Build Intraoperative Loader is the first single-use, disposable device for modern brachytherapy exclusively using Cesium Blu seeds. (isoray.com)
  • Isoray's Cesium Blu proprietary permanent prostate cancer brachytherapy seeds allow for better dose homogeneity and the sparing of the urethra and rectum while providing comparable prostate coverage compared to other seeds with comparable or fewer seeds and needles. (isoray.com)
  • Isoray along with investigators tracking PSA in both single arm and randomized prostate cancer treatment trials have concluded that Cesium Blu's PSA response rates have similar early tumor control to I-125, which was previously considered the gold standard in permanent seed brachytherapy. (isoray.com)
  • Also the higher specific activity caesium sources tend to be made from very soluble caesium chloride (CsCl), as a result if a radiography source was damaged it would increase the spread of the contamination. (wikipedia.org)
  • Computer model of a caesium chloride (CsCl) crystal. (sciencephoto.com)
  • WASHINGTON -- The U.S. government should take steps to promote the replacement of radioactive cesium chloride radiation sources, a potential "dirty bomb" ingredient used in some medical and research equipment, with lower-risk alternatives, says a new congressionally mandated report from the National Research Council. (nationalacademies.org)
  • Cesium-137 in the form of radioactive cesium chloride in stainless steel capsules is used in self-contained irradiators at hospitals and universities for blood irradiation and in biomedical and radiation research, as well as other industrial uses. (nationalacademies.org)
  • Approximately 1,300 radioactive high-activity cesium chloride devices, nearly all of them self-contained irradiators, are in use across the United States, and the number appears to be increasing. (nationalacademies.org)
  • Replacements for radioactive cesium chloride and some other high-risk radioactive materials used in commercial devices are available, but they are more expensive, creating little incentive for users to switch. (nationalacademies.org)
  • Cesium-137 in the form of cesium chloride poses greater concern than the others because it is widely used in significant quantities and is soluble and dispersible. (nationalacademies.org)
  • For most applications, radioactive cesium chloride can be replaced by lower-hazard alternatives that will not change the performance of the medical and research equipment, the committee found. (nationalacademies.org)
  • To phase out the use of current radioactive cesium-chloride sources, the committee presented a number of options. (nationalacademies.org)
  • One option is the U.S. government could stop licensing new cesium chloride irradiators, including discontinuing their import and export. (nationalacademies.org)
  • Such radioisotopes as cobalt-60 and cesium-137 are widely used to treat cancer. (britannica.com)
  • Such options include using less hazardous forms of radioactive cesium, radioactive cobalt, and X-ray generators. (nationalacademies.org)
  • Thus cobalt-60 for example mainly supplanted radium for cancer of the uterus, and other radioisotopes, such as caesium-137 and iridium-192, have been developed for particular uses. (encyclopedia.com)
  • They're using Cobalt 60(Co-60) and Cesium 137(Cs-137) to generate gamma rays for irradiating food. (peeniewallie.com)
  • Margaret Melhase and I discovered cesium-137, which has found substantial use as a gamma-ray source in a variety of medical applications, similar in practice to that of cobalt-60. (lbl.gov)
  • But now a days we do have the technology to identify people who would want to detonate 100lbs of C-4 strapped to a container of Cobalt 60 or Cesium 137. (dropzone.com)
  • Both cobalt-60 and cesium-137 have only a few gamma energies which make them close to monochromatic. (citizendium.org)
  • The photon energy of cobalt-60 is higher than that if cesium-137 which allows cobalt sources to be used to examine thicker sections of metals than those which could be examined with Cs-137. (citizendium.org)
  • Even before that I was at Wisconsin for my Ph.D. working on a Department of Energy program involving selective uptake and fixation of cesium, strontium, and other ions," Komarneni said. (medindia.net)
  • Roy, a noted Penn State materials scientist who died in 2010, coauthored a 1988 paper in the journal Science with Komarneni describing the selective uptake of cesium (137Cs), a radioactive contaminant that was widely dispersed through the environment in the Chernobyl nuclear reactor accident. (medindia.net)
  • As of today and for the next few hundred years or so, caesium-137 and strontium-90 continue to be the principal source of radiation in the zone of alienation around the Chernobyl nuclear power plant, and pose the greatest risk to health, owing to their approximately 30 year half-life and biological uptake. (wikipedia.org)
  • Shaw G, Bell JNB (1991) Competitive effects of potassium and ammonium on caesium uptake kinetics in wheat. (springer.com)
  • The team also helped to establish the Kelp Watch Initiative , which measures cesium uptake in kelp along the Pacific Coast. (newswise.com)
  • Cesium-137 ((137)Cs) (t1/2=30.1 year), a water-soluble radionuclide with a long physical half-life, contaminates aquatic ecosystems and food products. (americanelements.com)
  • Cesium 137 happens to be water soluble, so it can affect waterways of all kinds or be carried in rain. (menafn.com)
  • In 2003, in autopsies performed on 6 children dead in the polluted area near Chernobyl where they also reported a higher incidence of pancreatic tumors, Bandazhevsky found a concentration of 137Cs 40-45 times higher than in their liver, thus demonstrating that pancreatic tissue is a strong accumulator and secretor in the intestine of radioactive cesium. (wikipedia.org)
  • Apple pectin reduces the body burden of Cesium-137 in 'Chernobyl' children. (greenmedinfo.com)
  • Apple pectin significantly reduces Cesium-137 load within 16 days in children exposed to radioisotopes as a result of Chernobyl. (greenmedinfo.com)
  • Small amounts of caesium-134 and caesium-137 were released into the environment during nearly all nuclear weapon tests and some nuclear accidents, most notably the Chernobyl disaster. (globalresearch.ca)
  • Fukushima has spewed much more radioactive cesium and iodine than Chernobyl. (globalresearch.ca)
  • The worst is cesium and it is believed that most of that is the remnant of the Chernobyl disaster. (menafn.com)
  • The recent Fukushima disaster and other nuclear accidents, most notably Chernobyl, have been the source of copious amounts of nuclear waste that includes large releases of Cesium 137. (menafn.com)
  • These radioisotopes have been introduced into the environment through nuclear weapons tests as well as nuclear accidents such as Chernobyl. (nrc.gov)
  • As I understand it, there were some long-term radioisotopes released from Chernobyl for some reason. (debatepolitics.com)
  • This deadly radioisotope was produced after the Chernobyl and Fukushima meltdowns, and it is also generated after the release of nuclear bombs . (naturalnews.com)
  • The team also attributed much of the Cesium 137 that was found to nuclear weapons testing from the 1960's, the Chernobyl explosion in 1986 and, to a minor degree, the Fukushima accident. (sfu.ca)
  • The biological behaviour of caesium is similar to that of potassium and rubidium. (wikipedia.org)
  • One of the best-known applications of the pure elements is the use of rubidium and caesium in atomic clocks, of which caesium atomic clocks form the basis of the second. (wikipedia.org)
  • This suggests that the cesium contamination is likely in seafloor sediment, according to Buesseler. (thefreedictionary.com)
  • The scientists say radioactive decay from the caesium-rich micro particles can be differentiated from other forms of caesium contamination in the soil. (ekklesia.co.uk)
  • Accumulation of Cesium-137 and Strontium-90 in Ponderosa Pine and Monterey Pine Seedlings. (epa.gov)
  • P. ponderosa and P. radiata seedlings were tested for their ability to accumulate Cesium 137 and Strontium 90--characteristic radioisotopes of nuclear fallout--from contaminated soil. (epa.gov)
  • Two of the most troublesome and dangerous nuclear waste to dispose of are strontium-90 and cesium-137, both with half-lives of about 30 years. (thedailystar.net)
  • Caesium-137 is also used as a radioactive tracer in geologic research to measure soil erosion and deposition. (wikipedia.org)
  • In the summer of 2011, we grew processing tomatoes in 14 experimental fields that differed in soil radioactive caesium concentration, and we investigated both the radioactive caesium transfer factor (TF=fruit radioactive caesium concentration, Bq/kg fresh-weight/soil radioactive caesium concentration, Bq/kg dry-weight) for the tomatoes and the soil factors involved in absorption. (go.jp)
  • The radioactive caesium concentration in the fruit correlated positively with the exchangeable radioactive caesium concentration in the soil(r=0.77, p‹0.01), and the TF varied inversely with the exchangeable potassium concentration in the soil(ρ=−0.65, p‹0.05). (go.jp)
  • Multiple regression analysis showed that 73% of the variation of radioactive caesium concentration in the fruit arose from variations in the exchangeable radioactive caesium and potassium concentrations in the soil. (go.jp)
  • Thus, the soil concentration of both exchangeable radioactive caesium and exchangeable potassium were major factors involved in the absorption of radioactive caesium by tomato plants. (go.jp)
  • In addition, the findings suggest that potassium fertilizers could inhibit the absorption of radioactive caesium where the soil concentration of exchangeable potassium is low. (go.jp)
  • Cesium 137 and 134 were also detected in the majority of the soil samples. (sfu.ca)
  • The new method found caesium-rich micro-particles in all of the samples and showed that the amount of caesium associated with the micro-particles in the soil was much larger than expected. (ekklesia.co.uk)
  • Dr Satoshi Utsunomiya, Associate Professor at Kyushu University, Japan, and the lead author of the study said "when we first started to find caesium-rich micro-particles in Fukushima soil samples, we thought they would turn out to be relatively rare. (ekklesia.co.uk)
  • This map shows the location of seawater samples taken by scientists and citizen scientists that were analyzed at the Woods Hole Oceanographic Institution for radioactive cesium as part of Our. (eurekalert.org)
  • Seawater was measured for both Cesium-137 and Cesium-134. (deepseanews.com)
  • It works by using dehydrated seaweed, seawater extract, chlorella, spirulina, and zeolites that Adams' research has shown work extremely well at binding to cesium-137 and flushing it out of the digestive tract. (naturalnews.com)
  • Cesium 137 is a nuclear reactor byproduct that is formed from the nuclear fission of Uranium 135 (which is enriched uranium). (menafn.com)
  • Uranium and other radioactive materials, such as caesium and technetium, have been found in tiny particles released from the damaged Fukushima Daiichi nuclear reactors. (wattsupwiththat.com)
  • The researchers discovered uranium from nuclear fuel embedded in or associated with caesium-rich micro particles that were emitted from the plant's reactors during the meltdowns. (wattsupwiththat.com)
  • Scientists have shown that these particles are mainly made of glass, and that they contain significant amounts of radioactive caesium, as well as smaller amounts of other radioisotopes, such as uranium and technetium. (ekklesia.co.uk)
  • In Berkeley, the radiation detectors did pick up signatures for the radioisotopes they expected to see associated with the reactor meltdowns: cesium, iodine, and tellurium among them. (newswise.com)
  • Here, we show a geographical distribution of radioactive iodine, tellurium, and cesium in the surface soils of central-east Japan as determined by gamma-ray spectrometry. (pnas.org)
  • EPA rainfall monitors in California, Idaho, and Minnesota detected trace amounts of radioactive iodine, cesium, and tellurium consistent with the Japanese nuclear incident, at concentrations below any level of concern. (truth-out.org)
  • And if monitors in the continental United States detected radioactive iodine, cesium and tellurium in March 2011, then why did they stop the monitoring (or at least stop reporting it) by June? (truth-out.org)
  • However, the main radioisotopes such as Tc-99m cannot effectively be produced without reactors. (world-nuclear.org)
  • Caesium is mined mostly from pollucite , while the radioisotopes , especially caesium-137 , are extracted from waste produced by nuclear reactors . (princeton.edu)
  • Most of the cesium from Fukushima came from the millions of gallons of water poured onto the reactors during efforts to cool them, which subsequently flowed into the ocean as runoff or via groundwater. (whoi.edu)
  • Dr Gareth Law, Senior Lecturer in Analytical Radiochemistry at the University of Manchester and an author on the paper, adds: "Our research indicates that significant amounts of caesium were released from the Fukushima Daiichi reactors in particle form. (ekklesia.co.uk)
  • Stable cesium atoms that have the same atomic number as the element cesium, but differ in atomic weight. (bioportfolio.com)
  • The attributes of naturally decaying atoms, known as radioisotopes, give rise to several applications across many aspects of modern day life (see also information paper on The Many Uses of Nuclear Technology ). (world-nuclear.org)
  • Atoms are represented as spheres and are colour-coded: caesium (pink) and chlorine (green). (sciencephoto.com)
  • For excitation of the caesium atoms, the PTB physicists make use of a novel microwave source. (thefreedictionary.com)
  • The most common radioisotope used in diagnosis is technetium-99 (Tc-99), with some 40 million procedures per year, accounting for about 80% of all nuclear medicine procedures and 85% of diagnostic scans in nuclear medicine worldwide. (world-nuclear.org)
  • Several gamma-emitting radioisotopes are used, one of which is technetium-99m. (peeniewallie.com)
  • Probably the most widespread use of caesium today is in caesium formate-based drilling fluids for the oil industry. (mcgill.ca)
  • The high density of the caesium formate brine (up to 2.3 sg,) coupled with the relative benignity of 133 Cs , reduces the requirement for toxic high-density suspended solids in the drilling fluid, which is a significant technological, engineering and environmental advantage. (mcgill.ca)
  • Since the 1990s, the largest application of the element has been as caesium formate for drilling fluids . (princeton.edu)
  • Since the 1990s, the largest application of the element has been as caesium formate for drilling fluids , but it has a range of applications in the production of electricity, in electronics, and in chemistry. (wikipedia.org)
  • 24. The method of claim 22, wherein the irradiator comprises the radioisotope Iridium-192. (google.es)
  • The radioactive material includes at least first and second radioisotopes having at least first and second respective decay profiles that together provide a temporal radiation profile that is different from the first and second decay profiles. (google.com)
  • Prior to Fukushima, however, the levels of cesium-137 off the coast of Japan, as cataloged by Michio Aoyama at the Meteorological Research Institute in Japan and others, were among the world's lowest, at around 2 becquerels per cubic meter (1 becquerel, or Bq, equals one radioactive decay event per second). (whoi.edu)
  • Most radioisotopes do decay quickly though. (debatepolitics.com)
  • Wherever these radioisotopes land, they will eventually decay and release some degree of radiation. (sfu.ca)
  • The cesium mineral pollucite has been identified within the Pakeagama Lake pegmatite and is only the fourth pollucite occurrence noted in Ontario. (thefreedictionary.com)
  • Japanese experts say that Fukushima is currently releasing up to 93 billion becquerels of radioactive cesium into the ocean each day . (globalresearch.ca)
  • In Fukushima Prefecture, the straw was found to contain up to 97,000 becquerels of radioactive cesium per kg. (thefreedictionary.com)
  • 9 km away from the plant, containing radioactive cesium concentrations of 651 becquerels per kilogram, the team said. (thefreedictionary.com)
  • 18 ( ANI ): A mountain trout caught in the Niida River in Fukushima Prefecture contained 11,400 becquerels of radioactive cesium per kilogram, more than 110 times above the government limit for food products, a survey by the Environment Ministry showed. (thefreedictionary.com)
  • A thousand becquerels is not a big number for cesium. (whoi.edu)
  • Caesium ( IUPAC spelling [6] ) ( also spelled cesium in American English ) [note 1] is a chemical element with the symbol Cs and atomic number 55. (wikipedia.org)
  • Radioactive iodine, strontium, and cesium, which have large fission yields and low boiling points, present a large risk for internal radiation exposure via ingestion of contaminated agricultural crops. (pnas.org)
  • However, in recent years it has become apparent that small radioactive particles, termed caesium-rich micro-particles, were also released. (ekklesia.co.uk)
  • The release of radioisotopes from the Fukushima Dai-ichi nuclear power plant in March 2011 amounts to the largest-ever accidental release of radiation to the ocean. (whoi.edu)
  • we gather water samples and look for plankton and trace amounts of mercury and cesium- the first, a persistent and toxic pollutant, the second, a radiation marker linked to the Fukushima accident. (archive.org)
  • It basically says that these things [optical atomic clocks] are now capable of being better than cesium [clocks]," says atomic clock specialist Patrick Gill of the National Physical Laboratory in Teddington, England. (thefreedictionary.com)
  • Since then, caesium has been widely used in atomic clocks . (princeton.edu)
  • This particle form of caesium behaves differently to the other, more soluble forms of caesium in the environment. (ekklesia.co.uk)
  • Nonradioactive caesium compounds are only mildly toxic , but the pure metal's tendency to react explosively with water means that caesium is considered a hazardous material, and the radioisotopes present a significant health and ecological hazard in the environment. (wikipedia.org)
  • Prussian blue/radiogardase a chelation agent to treat radio-Cesium and thallium consumption, one of three the FDA radioprotectants stockpiled. (wikipedia.org)
  • Most of the equipment was bought by wannabe nuclear countries and terrorists with the idea of using Cesium 137 in dirty bombs. (menafn.com)
  • It is possible to make water insoluble caesium sources (with various ferrocyanide compounds such as Ni 2Fe(CN) 6, and ammonium ferric hexacyano ferrate (AFCF), Giese salt, ferric ammonium ferrocyanide) but their specific activity will be much lower. (wikipedia.org)
  • See how Cesium-131 by Isoray is being used. (isoray.com)
  • Two German chemists, Robert Bunsen and Gustav Kirchhoff , discovered caesium in 1860 by the newly developed method of flame spectroscopy . (princeton.edu)
  • Continuous monitoring of the concentration of natural and anthropogenic radioisotopes is of the utmost importance in the estimation of an individual's received dose. (springer.com)
  • Quantitative mapping of elements in basil leaves (Ocimum basilicum) based on cesium concentration and growth period using laser ablation ICP-MS. (bireme.br)
  • Accumulation of CS 137 and SR 90 by both species increased with increasing concentration in the growth medium and correlated curvilinearly with radioisotope concentration in the growth medium. (epa.gov)
  • After a time, the concentration of radioisotopes increases to the point where the fuel is considered "spent" and is replaced with fresh fuel. (thedailystar.net)
  • Caesium-137 is not widely used for industrial radiography because it is hard to obtain a very high specific activity material with a well defined (and small shape) as caesium from used nuclear fuel contains stable caesium and also long lived Cs-135. (wikipedia.org)
  • 1996. Burning radionuclide question: What happens to iodine, cesium and chlorine in biomass fires? (cdc.gov)
  • Cesium is generally present as a cation (Cs + ) and can be strongly adsorbed by sediments. (nrc.gov)
  • Nuclear testing in the 1950s released radioisotopes such as cesium-137 and plutonium-239 and -240, which have accumulated in most marine sediments worldwide. (geotimes.org)
  • In 1967, a specific frequency from the emission spectrum of caesium-133 was chosen to be used in the definition of the second by the International System of Units . (princeton.edu)
  • In 1967, acting on Einstein's proof that the speed of light is the most constant dimension in the universe, the International System of Units used two specific wave counts from an emission spectrum of caesium-133 to co-define the second and the metre . (wikipedia.org)
  • Caesium-137 has a half-life of about 30.17 years. (wikipedia.org)
  • Ruthenium 106 is used in satellites, radioisotope thermoelectric generators and for medical applications. (menafn.com)
  • If you have a preference, it is strongly suggested that your steak au poivre and chanterelles best be contaminated with Ruthenium rather than Cesium. (menafn.com)
  • The biological half-life of caesium is about 70 days. (wikipedia.org)
  • Accidental ingestion of caesium-137 can be treated with Prussian blue (FeIII 4[FeII (CN) 6] 3), which binds to it chemically and reduces the biological half-life to 30 days. (wikipedia.org)
  • Cesium 137 gives off highly penetrating radiation and has a 30-year half-life, meaning it persists in the environment for a long time. (thebulletin.org)
  • 2. The device of claim 1 , wherein the radioactive material comprises a first and second radioisotope, wherein the first and second radioisotopes each have a different half-life. (google.com)
  • Cesium-134 is not naturally present in the ocean, and it has a half-life of only two years. (whoi.edu)
  • With higher energy and a shorter half-life than competitors, Cesium Blu is proven to be a highly customized and effective treatment for the rapid recovery of patients in the fight against prostate cancer. (isoray.com)
  • With higher energy and a shorter half-life than competitors, Cesium Blu has been used in the treatment of brain, colorectal, gynecological, and head and neck cancers. (isoray.com)
  • The radioisotope caesium-137 , with a half-life of 30.2 years, is used in radiotherapy. (thefreedictionary.com)
  • This material turned out to be a much better cesium exchange material and much more stable in cement. (medindia.net)
  • Mercury is the only stable elemental metal with a known melting point lower than caesium. (wikipedia.org)
  • In fact, most of the cesium present in today's oceans, Buesseler noted, is a remnant of atmospheric nuclear weapons testing conducted by the United States, France, and Great Britain during the 1950s and '60s. (whoi.edu)
  • Because Pinus ponderosa (Dougl.ex Laws) and P. radiata (D.Don) have exceptionally fast growth rates and their abscised needles are not readily dispersed by wind, these species may be valuable for removing radioisotopes from contaminated soils. (epa.gov)
  • Although the element is only mildly toxic, it is a hazardous material as a metal and its radioisotopes present a high health risk in case of radiation leaks. (princeton.edu)