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)

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. ...
RADE [Residents Against Dirty Energy] has joined GCU [Gas Communities United] on behalf of the Baggator Nexus in Bristol. RADE and GCU will ensure that Gasometer redevelopment by Temple Meads Station benefits, not harms, the surrounding communities.
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
Novinka na trhu - Predstavujeme revolučný produkt - bicyklové duše Tubolito Použitie hightech termoplastov v kombinácii s unikátnou výrobnou technológiou sa podarilo vyrobiť ultra ľahké a zároveň odolné bicyklové duše, ktoré sú výbornou alternatívou za klasickú dušu, Prečo duše Tubolito? Výhodou je až 2,7 násobne nižšia hmotnosť a 2 násobne vyššia odolnosť proti defektu a v neposlednej rade tiež lepšia skladnosť a jednoduchá manipulácia pri nasadzovaní duše do ráfika. Pre koho je Tubolito určené? Potenciál by vedeli najlepšie využiť cestní cyklisti ako náhradu za bežnú dušu. Pri cestnej cyklistike na každom grame záleží - a Tubolito v porovnaní s light cestnými dušami má neuveriteľne nízku hmotnosť. A až dvojnásobnú odolnosť voči defektu. Takisto zákazníci s MTB a zvlášť s elektrobicyklami iste ocenia fakt, že majú duše s dvojnásobnou odolnosťou voči defektu. Ale Tubolito má pre každého cyklistu čo
Kao što je bilo nedavno rečeno pokrenuta je Kickstarter kampanja za reizdanje kultne igre System Shock kroz koju će razvojni tim Nightdive Studios sljedećih mjesec dana prikupljati sredstva za njen razvoj. Prema službenom opisu radi se o potpunom reizdanju kojeg tim radi iz temelja te ga prebacuje u Unity Engine. Na reizdanju System Shocka rade […]. ...
V parlamentných voľbách 2020 bol/a za stranu ĽSNS z kandidátky na mieste číslo 9 zvolený/á na post poslanca/poslankyne v Národnej rade Slovenskej republiky.…
V parlamentných voľbách 2020 bol/a za stranu SaS z kandidátky na mieste číslo 10 zvolený/á na post poslanca/poslankyne v Národnej rade Slovenskej republiky.…
piste svoje priania pre forum (pripadne aj konkretnych uzivatelov) do noveho roku... takze zacnem ja: v prvom rade nech sa aj v roku 2010 forum rozrasta a ziskava na kvalite, modertatori nech si plnia nadalej svoje povinnosti ako doteraz a ...
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. ...
Керамбит Красный закат (сувенир из дерева) MASKBRO - это деревянный нож в стиле видеоигры CS:GO
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 ... Because metallic caesium is too reactive to handle, it is normally offered as caesium azide (CsN3). Caesium hydroxide is formed ... 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)". 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 ...
Longer-life radioisotopes, typically caesium-137 and strontium-90, present a long-term hazard. Intense beta radiation from the ... The bomb casing can be a significant sources of neutron-activated radioisotopes. The neutron flux in the bombs, especially ... The primary fallout hazard is gamma radiation from short-lived radioisotopes, which represent the bulk of activity. Within 24 ... Bioaccumulation influences the propagation of fallout radioisotopes in the biosphere. ...
"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 ...
All other radioisotopes have half-lives shorter than two weeks. The longest-lived isomer is 133mBa, which has a half-life of ... The shorter-lived 137mBa (half-life 2.55 minutes) arises as the decay product of the common fission product caesium-137. Barium ... Primordial radioisotope Believed to undergo β+β+ decay to 132Xe with a half-life over 300×1018 years Theoretically capable of ... There are a total of thirty-three known radioisotopes in addition to 130Ba. The longest-lived of these is 133Ba, which has a ...
A radiotherapy machine may have roughly 1000 Ci of a radioisotope such as caesium-137 or cobalt-60. This quantity of ...
In biological contexts, use of radioisotope tracers are sometimes called radioisotope feeding experiments. Radioisotopes of ... The caesium isotope produced is unstable and decays to 123I. The isotope is usually supplied as the iodide and hypoiodate in ... 99mTc is a very versatile radioisotope, and is the most commonly used radioisotope tracer in medicine. It is easy to produce in ... The commonly used radioisotopes have short half lives and so do not occur in nature in large amounts. They are produced by ...
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 ...
As caesium 133, 135, and 137 are formed by the beta particle decay of the corresponding xenon isotopes, this causes the caesium ... The strontium radioisotopes are very important, as strontium is a calcium mimic which is incorporated in bone growth and ... 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 ... Caesium-134 is found in spent nuclear fuel but is not produced by nuclear weapon explosions, as it is only formed by neutron ...
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 ...
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 ...
Caesium-137 can also be used for food irradiation. The academic journal Waste & Biomass Valorization publishes scholarship on ... Strontium-90 is suitable as a fuel for a radioisotope thermoelectric generator and has been extracted from spent nuclear fuel ... Caesium-137 or Strontium-90, as well as nonradioactive applications as some fission products decay quickly to stable or ... ". "An Overview of Radioisotope Thermoelectric Generators". "Food Irradiation". "Waste and Biomass Valorization , Volumes and ...
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-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 ...
... 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 ...
One of his primary research sites was the Cesium-137 tagged Liriodendron forest in Oak Ridge, TN. He soon realized that ... Reichle, David E. (November 1969). "Measurement of Elemental Assimilation by Animals from Radioisotope Retention Patterns". ... Auerbach, S. I.; Olson, J. S.; Waller, H. D. (February 1964). "Landscape Investigations Using Cæsium-137". Nature. 201 (4921): ... radioisotope transport was influenced by the metabolism of species and ecosystems, and he soon became captivated with ...
... 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.: Ch. 1 A feature of ... 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 produced by neutron irradiation 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. ... In most designs, the radioisotope, contained in stainless steel pencils, is stored in a water-filled storage pool which absorbs ...
It is followed by caesium, iridium and palladium by mass and iridium, gold and platinum by volume. Of those elements, rhodium, ... The price listing for radioisotopes is not exhaustive. 2000s commodities boom Density for 0 °C, 101.325 kPa. For individual ... Per-kilogram prices of some synthetic radioisotopes range to trillions of dollars. While the difficulty of obtaining ... caesium and gold have only one stable isotope (133 Cs, 103 Rh and 197 Au respectively), iridium has two (191 Ir & 193 Ir) ...
... spent fuel Caesium-137 has uses in food irradiation and can be used to power radioisotope thermoelectric generators. However, ... including caesium whose isotope caesium-137 emits about half of the heat produced by the spent fuel over the following 100 ... 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 ( ...
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 ...
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 ...
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. ...
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 ... As of 2015, 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 ...
... of highly radioactive caesium chloride (a caesium salt made with a radioisotope, caesium-137) encased in a shielding canister ... Caesium has a high affinity for many clays. Organic solvents, followed by potassium alum dissolved in hydrochloric acid, were ... The specific activity of the active solid was about 814 TBq·kg−1 of caesium-137, an isotope whose half life is 30 years. The ... The caesium container was entirely dismantled, spreading significant contamination. Extreme radiation levels of up to 1.5 Sv·h− ...
... 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 ...
Caesium Barium Lanthanum Cerium Praseodymium Neodymium Promethium Samarium Europium Gadolinium Terbium Dysprosium Holmium ... 33 radioisotopes of neodymium have been detected as of 2022[update], with the most stable radioisotopes being the naturally ... and two radioisotopes with extremely long half-lives, 144Nd (alpha decay with a half-life (t1/2) of 2.29×1015 years) and 150Nd ...
Caesium Barium Lanthanum Cerium Praseodymium Neodymium Promethium Samarium Europium Gadolinium Terbium Dysprosium Holmium ... Thirty radioisotopes of protactinium have been discovered, the most stable being 231Pa with a half-life of 32,760 years, 233Pa ...
Caesium Barium Lanthanum Cerium Praseodymium Neodymium Promethium Samarium Europium Gadolinium Terbium Dysprosium Holmium ...
Alpha decays in general release about ten times as much energy as the beta decay of strontium-90 or caesium-137.[citation ... A radioisotope thermoelectric generator (RTG, RITEG), sometimes referred to as a radioisotope power system (RPS), is a type of ... Electrostatic-boosted radioisotope heat sources[edit]. A power enhancement for radioisotope heat sources based on a self- ... Multi-Mission Radioisotope Thermoelectric Generator[edit]. NASA has developed a multi-mission radioisotope thermoelectric ...
that the addition of stable cesium to the diet of pigs fails to increase the rate at which radioactive cesium is lost from the ... He also marketed online, services and a mineral supplement he claimed mitigate the dangers of ingested radioisotopes. Busby ... Note that even if the pills contained stable cesium it is unlikely that the stable cesium would increase the rate at which ... They observed that, while caesium-137 exposure did not cause any damage to heart cells or arrhythmias, results indicated that ...
Creager, Angela N.H. (2006). "Nuclear Energy in the Service of Biomedicine: The U.S. Atomic Energy Commission's Radioisotope ... In Chicago, 102 volunteers with unclear consent received injections of strontium and cesium solutions to simulate radioactive ...
Seven radioisotopes have been characterized, the most stable being 8Li with a half-life of 838 ms and 9Li with a half-life of ... Like the other alkali metals (which are sodium (Na), potassium (K), rubidium (Rb), caesium (Cs), and francium (Fr)), lithium ...
A further 31 artificial radioisotopes of tellurium are known, with atomic masses ranging from 104 to 142 and with half-lives of ... Taft, E.; Apker, L. (1953-02-01). "Photoemission from Cesium and Rubidium Tellurides". JOSA. 43 (2): 81-83. Bibcode:1953JOSA... ... Spectral Response of Cesium Telluride and Rubidium Telluride Photocathodes for the Production of Highly Charged Electron ...
... radioisotope Radium Radon Radon difluoride Raman spectroscopy Raoult's law Redox Reduction Reflux Reversible reaction Rhazes ... number Cassiterite catalyst Cationic caustic soda Celadonite Celestine Celsius central nervous system Cerium Cerussite Caesium ... Svante Arrhenius Syenite Sylvite synthetic radioisotope systematic element name Tabun Talc Talcum Tantalite Tantalum Tanzanite ...
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 ...
The caesium concentration is slightly higher at two points where xenon bubbles are present. Much of the xenon is present in ... Already the release of radioisotopes from fuel under different conditions has been studied. After the fuel has been used in the ... They report that 3 to 8% of the krypton-85 was released, and that much less of the ruthenium (0.5%) and caesium (2.6 x 10−3%) ... It is important to understand that the 134Cs and 137Cs are formed in different ways, and hence as a result the two caesium ...
Had there been elevated releases of radioactivity, increased levels of iodine-131 and cesium-137 would have been expected to be ... According to the Rogovin report, the vast majority of the radioisotopes released were noble gases xenon and krypton resulting ... from the reactor subsequent to the accident were found to have significantly higher levels of cesium-137 than in deer in the ...
... associated with the use of cesium chloride in naturopathic medicine. Caesium chloride composed of radioisotopes such as 137CsCl ... Caesium hydroxide is obtained by electrolysis of aqueous caesium chloride solution: 2 CsCl + 2 H2O → 2 CsOH + Cl2 + H2 Caesium ... In the laboratory, CsCl can be obtained by treating caesium hydroxide, carbonate, caesium bicarbonate, or caesium sulfide with ... When enriched in radioisotopes, such as 137CsCl or 131CsCl, caesium chloride is used in nuclear medicine applications such as ...
Venturi Sebastiano (2022). "Prevention of nuclear damage caused by iodine and cesium radionuclides to the thyroid, pancreas and ... in food or liquids absorption of vapours such as tritium oxide through the skin injection of medical radioisotopes such as ...
... as the xenon-135 decays into cesium-135, which is not nearly as poisonous as xenon-135, with a half-life of 9.2 hours. This ... or the production of radioisotopes for medicine and industry. These are much smaller than power reactors or those propelling ... transport Nuclear decommissioning Nuclear power by country Nuclear power in space One Less Nuclear Power Plant Radioisotope ...
Electron beams are an on-off technology that provide a much higher dose rate than gamma or X-rays emitted by radioisotopes like ... cobalt-60 (60Co) or caesium-137 (137Cs). Due to the higher dose rate, less exposure time is required and polymer degradation is ... radioisotope production for medical diagnostics, ion implanters for the manufacture of semiconductors, and accelerator mass ...
"Caesium fallout from Fukushima rivals Chernobyl". New Scientist. Archived from the original on 1 April 2011. Retrieved 30 March ... as it prevents the absorption of the potentially dangerous radioisotopes of that element. Since Chernobyl, distributing ... Measurements taken by the Japanese government 30-50 km from the plant showed caesium-137 levels high enough to cause concern, ...
... the radioisotope thermoelectric generator. A radioisotope thermoelectric generator (RTG) is a simple electrical generator which ... Besides those well-known middle to long-lived radioactive Caesium-isotopes there are other isotopes of Caesium like 133 Cs ( ... A radioisotope heater unit (RHU) typically provides about 1 watt of heat each, derived from the decay of a few grams of ... These systems use radioisotopes that produce low energy beta particles or sometimes alpha particles of varying energies. Low ...
Together with the caesium isotopes 134Cs, 137Cs, and iodine isotope 131I, it was among the most important isotopes regarding ... "Radioisotopes That May Impact Food Resources" (PDF). Epidemiology, Health and Social Services, State of Alaska. Retrieved 2014- ... Strontium-90 is not quite as likely as caesium-137 to be released as a part of a nuclear reactor accident because it is much ... 2013). "Cesium, iodine and tritium in NW Pacific waters - a comparison of the Fukushima impact with global fallout". ...
In a press release, TEPCO reports that levels of caesium-134, caesium-136, caesium-137, and iodine-131 (half-life of ~ 8 days ... and now claims that the xenon was a result of the normal decay of radioisotopes in the fuel. The Japanese government bans ... 630 becquerels of caesium per kilogram was found in the rice, over the 500 becquerels of caesium per kilogram allowed for human ... Radioactive caesium-137 is found in Tokyo's tap water for the first time since April. Radioactive caesium from Fukushima was ...
The radioisotope thallium-201 (as the soluble chloride TlCl) is used in small amounts as an agent in a nuclear medicine scan, ... In keeping with the large size of the Tl+ cation, the chloride and bromide have the caesium chloride structure, while the ... The most useful radioisotope, 201Tl (half-life 73 hours), decays by electron capture, emitting X-rays (~70-80 keV), and photons ... 204Tl is the most stable radioisotope, with a half-life of 3.78 years. It is made by the neutron activation of stable thallium ...
Caesium is employed because it is the most easily ionized of all stable elements. A thermionic generator is like a cyclic heat ... Atomic battery Betavoltaics Optoelectric nuclear battery Magnetohydrodynamic generator Radioisotope piezoelectric generator ... Caesium vapor is used to optimize the electrode work functions and provide an ion supply (by surface ionization or electron ... The work function is determined primarily by a layer of caesium atoms adsorbed on the electrode surfaces. The properties of the ...
... www.epa.gov/rpdweb00/radionuclides/cesium.htmlexternal icon. ... Cesium-137 (Cs-137)plus icon *Radioisotope Brief. *Toxicology ...
"CDC Radiation Emergencies , Radioisotope Brief: Cesium-137 (Cs-137)". CDC. Retrieved 5 November 2013. "Cesium , Radiation ... Caesium-137 (137 55Cs ), cesium-137 (US), or radiocaesium, is a radioactive isotope of caesium that is formed as one of the ... Caesium-137 reacts with water, producing a water-soluble compound (caesium hydroxide). The biological behaviour of caesium is ... shape as caesium from used nuclear fuel contains stable caesium-133 and also long-lived caesium-135. Isotope separation is too ...
Cesium Radioisotopes / analysis* * Conservation of Natural Resources* * Environmental Monitoring / methods* * Geologic ... Soil erosion and sediment sources in an Ohio watershed using beryllium-7, cesium-137, and lead-210 J Environ Qual. 2002 Jan-Feb ...
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 ... Home / Information Library / Non-power Nuclear Applications / Radioisotopes & Research / Radioisotopes in Medicine ...
9. GammaTile cesium-131 (Cs-131) brachytherapy in neuro-oncology: The GammaTile Radiation Therapy System (GT Medical ... and more directly than either external-beam radiation therapy or other forms of brachytherapy that use different radioisotopes ... Technologies), currently under review at the FDA, incorporates cesium-131 Cs-131 brachytherapy seeds, which are embedded into a ...
Alpha decays in general release about ten times as much energy as the beta decay of strontium-90 or caesium-137.[citation ... A radioisotope thermoelectric generator (RTG, RITEG), sometimes referred to as a radioisotope power system (RPS), is a type of ... Electrostatic-boosted radioisotope heat sources[edit]. A power enhancement for radioisotope heat sources based on a self- ... Multi-Mission Radioisotope Thermoelectric Generator[edit]. NASA has developed a multi-mission radioisotope thermoelectric ...
The period of 300 years is derived from 10 half-lives of the 2 main dangerous radioisotopes, caesium-137 and strontium-90: both ...
Should the reactor fail, the radioisotopes of concern would be isotopes of cesium, strontium, and iodine. If these are vented ...
One important radioisotope not removed in this process is tritium - a radioactive form of hydrogen with a half-life of 12.3 ... such as cesium-137 and strontium-90. This can lead to fish being thousands of times more radioactive than the water they swim ... Of particular concern are long-lived radioisotopes (unstable chemical elements) and those which concentrate up the food chain, ... This means it takes 12.3 years for half of the radioisotope to decay. ...
... the dose volume histogram was generated for both radioisotopes. To evaluate the dosimetric differences of the two radioisotopes ... To compare treatment plans and evaluate dosimetric characteristics of permanent cesium-131 (131Cs) vs. iodine-125 (125I) ... the dose volume histogram was generated for both radioisotopes. To evaluate the dosimetric differences of the two radioisotopes ... Dosimetric differences between cesium-131 and iodine-125 brachytherapy for the treatment of resected brain metastases ...
Cesium radioisotopes.. Plutonium.. Soil pollutants, Radioactive. National Library of Medicine Call No.: WN 650 ...
In May and early June, cesium-137 concentrations measured along the coast had dropped off precipitously, as most of the cesium ... He quickly made his way to Turkey to begin sampling radioisotopes in the Black Sea. In the decades since, Buesseler has focused ... levels of cesium present in a wide range of fish are no longer declining or are decreasing only slowly-suggesting that cesium ... Cesium-137 is soluble in seawater, Buesseler explained, so it quickly disperses down and out into the ocean. "If you shut off ...
Cesium radioisotope (substance) {69703007 , SNOMED-CT } Parent/Child (Relationship Type) Cesium-126 (substance) {47799000 , ... SNOMED-CT } Cesium-127 (substance) {4437004 , SNOMED-CT } Cesium-128 (substance) {2674005 , SNOMED-CT } Cesium-129 (substance ... 3579002 , SNOMED-CT } Cesium-131 (substance) {13237009 , SNOMED-CT } Cesium-132 (substance) {5060005 , SNOMED-CT } Cesium-134 ( ... Cesium-135 (substance) {63760004 , SNOMED-CT } Cesium-136 (substance) {29678005 , SNOMED-CT } Cesium-137 (substance) {55117002 ...
Do you know how long cesium 137 stays in seawater? It is very water soluble and gets incorporated into many types of body ... lower food chain fish which keeps accumulating the radioisotopes in the predator (the salmon, swordfish, or tuna). So if you ...
The International Atomic Energy Agency has emphasized that elevated concentrations of cesium-134, cesium-137, and ruthenium-103 ... IAEA seeks source of radioisotopes detected over Northern Europe. June 30, 2020, 9:19AM ...
Cesium-137 (Cs-137)plus icon *Radioisotope Brief. *Toxicology FAQs. *Cobalt-60 (Co-60)plus icon *Radioisotope Brief ...
"Caesium-137 in the environment is anthropogenic (human-made). Unlike most other radioisotopes, caesium-137 is not produced from ... Caesium-137 has a physical half-life of 30 years. In the meantime, the typhoon in Asia has led to new water leaks of ... These included caesium-137 and iodine-131, Nisa said, noting that levels began to decrease after some time. ... The article clearly identifies the problem as Caesium-137. That isotope is a well know product from the nuclear disaster. ...
The two main radionuclides of concern that were found were both isotopes of the same element, cesium. Cesium-134 and cesium-137 ... The detection in tuna answers some of the questions of how fast, by what means, and how far radioisotopes can travel from one ... At the time prior to the new release, cesium-134, the isotope with the shorter half-life, was undetectable in Pacific surface ... cesium-137, still had detectable levels in Japan due to the nuclear fallout from weapons testing. ...
One important radioisotope not removed in this process is tritium - a radioactive form of hydrogen with a half-life of 12.3 ... such as cesium-137 and strontium-90. This can lead to fish being thousands of times more radioactive than the water they swim ... Of particular concern are long-lived radioisotopes (unstable chemical elements) and those which concentrate up the food chain, ... This means it takes 12.3 years for half of the radioisotope to decay. ...
Posted in Energy , Tagged Arnie Gundersen, assume a can opener, bioaccumulation, cesium, Coast Guard, Congressional Research ... The point about radioisotopes being "below any level of concern" comes from an EPA news release dated March 22, 2011-eleven ... 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 ... The leak occurred when a pipe broke off from a joint while the water was being filtered for cesium, Tokyo Electric Power Co. ...
... of highly radioactive caesium chloride (a caesium salt made with a radioisotope , caesium-137 ) encased in a shielding canister ... Cesium Radioisotopes. Unstable isotopes of cesium that decay or disintegrate emitting radiation. Cs atoms with atomic weights ... Radioisotope Teletherapy. A type of high-energy radiotherapy using a beam of gamma-radiation produced by a radioisotope source ... Radiation-Sensitizing AgentsCisplatinCesium RadioisotopesVincristineDacarbazineRadioactive PollutantsProcarbazineFluorouracil ...
Azolla; adverse effects; autophagosomes; autophagy; caspase-1; cell lines; cesium radioisotopes; chloroquine; flow cytometry; ...
Traces of radioactive cesium-137 may have even traveled to Turkey, Italy and Scandinavia. ... University of South Carolina in Columbia used satellite imagery of fires in the 2000s and field measurements of radioisotope ...

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