Radioactive materials lead radioisotopes. Medical search. Frequent questions

Certain isotopes, such as uranium, possess high levels of radiation, while radioactive materials containing carbon can conveniently and inadvertently contaminate waterways through sewage lines . (conserve-energy-future.com)
Untreated sewage is often released into water sources, where radioactive isotopes combine with other compounds and elements. (conserve-energy-future.com)
Nuclear reactions, specifically of the (gamma, n) type, also known as photodisintegration, are utilized to accomplish this transmutation from troublesome, long-lived radioactive waste isotope(s) of given atomic mass to shorter-lived or stable materials of lower atomic mass, by exposing the troublesome isotopes to a high energy photon flux for a sustained time. (rexresearch.com)
To obtain an electrode for cold nuclear fusion which can manufacture isotopes, precious metals, rare elements or thermal energy through nuclear transformation by containing as a material for the electrode a substance which can cause nuclear transformation. (rexresearch.com)
Solution: Radioactive or nonradioactive isotopes are manufactured by the nuclear transformation in an electrode and the combination of nuclear reactions such as neutron capture and natural nuclear disintegration of products made through the nuclear reactions. (rexresearch.com)
it is a man-made element whose isotopes Am-237 through Am-246 are all radioactive. (cdc.gov)
8) Therefore, if a certain mineral contains both Uranium-238 and Lead-206, and if we assume that most of the Lead-206 was derived radiologically, the ratio of these two isotopes should allow an estimate of the fraction of Uranium-238 that had decayed, and since we know the half-life of Uranium-238, we can therefore find how long it took for this process to take place. (rae.org)
It can't always be used, because the material surrounding the fossil often doesn't contain the right isotopes, and the measurement for radiogenic dates is destructive and thus the fossil itself can't be dated. (rae.org)
Unstable or radioactive isotopes (also called radioisotopes) change structure and emit radiation spontaneously as they decay, and become different isotopes. (usgs.gov)
Spectral gamma borehole geophysical methods measure natural-gamma energy spectra, which are caused by the decay of uranium, thorium, potassium-40, and anthropogenic radioactive isotopes. (usgs.gov)
This branch of science utilizes radioactive isotopes in a wide array of applications in various fields. (moravek.com)
What makes these radioactive isotopes extraordinary is their capabilities for easy detection, alongside their quantitative measurement ability. (moravek.com)
Radioactive isotopes are advantageous to date the unknown ages of certain objects. (moravek.com)
Radioactive isotopes are fairly effective for tracing because their radioactivity is easily detectable, which yields useful information for specific identification and the ongoing physical, chemical, or biological process at hand. (moravek.com)
Neptunium is also radioactive, so isotopes of this element also give off radiation and change into isotopes of other elements. (cdc.gov)
This process continues and eventually ends when stable isotopes of bismuth and lead are formed. (cdc.gov)
In 1950, Yalow partnered with Dr. Solomon Berson, a young physician just completing his residency and together they discovered radioimmunoassay (RIA), leading to new ways to use radioactive isotopes to measure blood, study iodine metabolism, and diagnose thyroid diseases. (thecaucusblog.com)
Although some metal ions, such as cobalt and iron are essential for maintaining normal physiological functions, but at higher concentration or their radioactive isotopes leads to poisoning. (researchsquare.com)
Radioactive isotopes can only be shipped within the USA. (unitednuclear.com)
Researchers have contemplated the use of radioisotope thermoelectric generators (RTGs) in smartphones, which could utilize the heat produced by the natural radioactive decay of isotopes to generate electricity. (techmobis.com)
The simplest way to think of it is this: Some rock materials (isotopes) decay, and we can determine the age of a rock in today's laboratories by determining how much of a specific isotope contained in the rock has decayed. (icr.org)
The Shielded Box for Isotope Transport and Storage is a double locking device.It is used to transport or store radioactive isotopes or other radioactive substances.It is safe and reliable. (rayshielding.com)

Waste segregation by form and isotope is an effort to minimize the volume of radioactive waste disposed at licensed land disposal facilities. (uh.edu)
Embodiments of a method for processing radioacive materials, with a particular embodiment comprising processing uranium with hydrogen isotope plasmas, and a process for remediation of nuclear wastes by transmutation. (rexresearch.com)
The threshold zones are placed against a carrier material or close to vol. zones of metals or metal layers, composed of metals capable of absorbing \-1 atom% of hydrogen or its isotope. (rexresearch.com)
Although a different isotope of radon is formed in each of the radioactive-decay series, only 222Rn has a sufficiently long half-live (3.8 d) that it often occurs at elevated concentrations in indoor air. (aarst.org)
Each radioactive isotope of an element, including americium, constantly gives off radiation, which changes it into an isotope of a different element or a different isotope of the same element. (cdc.gov)
Specifically, the half-life is the time it takes for half of the atoms of a radionuclide to undergo radioactive decay and change it into a different isotope. (cdc.gov)
A solution containing a radioactive isotope depositing substance in solution is provided and placed into contact with the stent or any other substrate material capable of receiving the radioactive isotope. (justia.com)
The radioactive isotope is deposited on the stent or substrate material. (justia.com)
Preferably a phosphorous isotope is used and the solution is polymerized forming polymer chains containing the radioactive isotope. (justia.com)
The present invention relates to implantable medical apparatus, especially radioactive stents for reducing the incidence of restenosis, and to a method for imparting radioactive properties to substrate materials such as stents, in particular by creating a surface layer of a radioactive isotope such as .sup.32 P. (justia.com)
Besides the online production of the desired radioactive isotope, extraction and post-accelerating (so-called ISOL technique, carried out for instance at CERN ISOLDE or CYCLONE at the CRC/UCL), also offline technology by use of an ECR source is applied. (psi.ch)
Cesium-137 is radioactive isotope produced from nuclear catastrophes like Chernobyl and Fukushima. (toxindefense.org)
Radioactive cesium isotope binding has not been tested in humans for obvious reasons: it would be unethical to feed humans radioactive food. (toxindefense.org)
How to treat lung cancer, pleural effusion (4) Radioisotope: such as 32 P (32P), gold and other isotope treatment, the radioactive material placed in the pleural cavity can kill tumor cells, and promote absorption of pleural effusion. (cancerlive.net)

Particles or various types of rays released by radioactive decay of elements, which may be naturally occurring, created by accelerator collisions, or created in a nuclear reactor. (wikipedia.org)
Radioactive pollution occurs when radioactive materials are deposited in the atmosphere or environment, especially when their presence is accidental and presents an environmental threat due to radioactive decay. (conserve-energy-future.com)
The destruction caused by the radioactive materials is from the emission of hazardous ionizing radiation (radioactive decay) like beta or alpha particles, gamma rays, or neurons into the environment. (conserve-energy-future.com)
the rate of decay of radioactive material expressed as the number of atoms breaking down per second measured in units called becquerels or curies . (cdc.gov)
the amount of a radioactive material that will undergo one decay (disintegration) per second. (cdc.gov)
6) We know that certain radioactive metals have extremely long half-life (that is, they decay very slowly). (rae.org)
Suppose that, in step 8), the Lead-206 got there some other way than by radioactive decay. (rae.org)
Radioactive decay is the process in which a radioactive atom spontaneously gives off radiation in the form of energy or particles to reach a more stable state. (cdc.gov)
Half-life is the length of time it takes for half of the radioactive atoms of a specific radionuclide to decay. (cdc.gov)
241Am is also used for industrial gauging process is called radioactive decay. (cdc.gov)
Secular equilibrium for the 238U and 232Th radioactive-decay series was evident. (aarst.org)
Introduction Radioisotopes of the three naturally occurring radioactive-decay series, headed by 232Th, 235 U, and 238U, are ubiquitous in soils. (aarst.org)
Spectra, collected for a 294 gamma-ray energy range of 46 to 1765 keV, and were analyzed by the Genie-VMS Spectroscopy System (Canberra Industries Inc.). The detector was shielded by 15 cm of lead, and the counting chamber was purged with nitrogen during the measurements to reduce the concentration of airborne radon-decay products from the room air. (aarst.org)
As time goes on, the radioactive element of carbon-14 within the dead organism will decay away while the amount of carbon-12 will remain the same, as it has a longer half-life. (moravek.com)
TRCs use a radioisotope as MMRTGs do and are based on heat from radioactive decay, but there's a difference. (universetoday.com)
This process is called radioactive decay. (cdc.gov)
To find out how much material began the decay process long ago, we need to determine N 0 , the number of parent atoms present when the rock was formed. (icr.org)
Decay constants for radioisotopes typically used in deep-time dating range from 0.0654 × 10 -10 yr -1 for 147 Sm to 9.85 × 10 -10 yr -1 for 235 U. (icr.org)
At this point the closed system assumption was introduced and secularists assumed that all, or most, of the daughter nuclei present in a given material were there as a direct result of the parent's decay. (icr.org)
Of course, one can never be sure that all the daughter nuclei came from the radioactive decay of the parent because the assumption of a closed system on or near Earth's crust for millions of years stretches credibility. (icr.org)
Thus, geochronologists need a more reliable method of dating materials than the straightforward accumulation radioactive decay clock. (icr.org)

This occurs as a result of knocking atoms out of their lattice sites through both the initial interaction as well as a resulting cascade of damage, leading to the creation of defects, dislocations (similar to work hardening and precipitation hardening). (wikipedia.org)
Radiation can also lead to segregation and diffusion of atoms within materials, leading to phase segregation and voids as well as enhancing the effects of stress corrosion cracking through changes in both the water chemistry and alloy microstructure. (wikipedia.org)
So the analogy to think about is a spaceship passing through a meteor storm like you might see in a science-fiction movie where the spaceship represents the radiation and the meteors represent the atoms of the material through which the radiation is passing. (wikibooks.org)
We can also appreciate from the table that alpha-particles are quite massive relative to the other types of radiation and also to the electrons of atoms of the material through which they are passing. (wikibooks.org)
Radioactive atoms give off one or more of these types of radiation to reach a more stable state. (cdc.gov)
These atoms can become radioactive. (cdc.gov)
If you start with 100 atoms, after one half-life you'll have 50 radioactive atoms. (cdc.gov)
After two half-lives, you'll have 25 radioactive atoms. (cdc.gov)
And after a third half-life, you'll have 12 radioactive atoms. (cdc.gov)
Then 6, then 3, then 1, until eventually, all of the radioactive atoms in that population will reach their more stable state. (cdc.gov)
But in the process, several types of radioactive atoms are generated. (cdc.gov)
radioactive material in which 1 atom transforms every second, and a curie is the amount of The predominant commercial use of 241Am is in radioactive material in which 37 billion atoms ionization-type smoke detectors. (cdc.gov)
All they need to do is fuse natural radioactive atoms with reactant molecules. (moravek.com)
Consider this: if we can understand how atoms combine and interact at their level, we will be able to understand how to create improved materials, medicines, and procedures. (homeschool.com)

In the Goiania case, the gamma-emitting radioisotope was cesium-137 in the chemical form of cesium chloride, which is a salt-like substance. (fas.org)
But if the radioactive material had been cesium-137 in chloride form, this event in Mexico could have been a ghastly replay of the 1987 event in Goiania. (fas.org)
The radioactive contaminants released during any accident or incident includes cesium-137, strontium-90, iodine-131, cobalt-60, americium-241 etc. (researchsquare.com)
4 ] a vial of highly radioactive cesium-137 was abandoned inside a hunk of scrap machinery and found its way into ignorant hands with tragic results [ 5 ] There are over 400 nuclear reactors installed in 28 countries. (ccnr.org)

Radiation damage is the effect of ionizing radiation on physical objects including non-living structural materials. (wikipedia.org)
High doses of ionizing radiation can cause damage to living tissue such as radiation burning and harmful mutations such as causing cells to become cancerous, and can lead to health problems such as radiation poisoning. (wikipedia.org)
This radiation may take several forms: Cosmic rays and subsequent energetic particles caused by their collision with the atmosphere and other materials. (wikipedia.org)
Radiation may affect materials and devices in deleterious and beneficial ways: By causing the materials to become radioactive (mainly by neutron activation, or in presence of high-energy gamma radiation by photodisintegration). (wikipedia.org)
Devices intended for high radiation environments such as the nuclear industry and extra atmospheric (space) applications may be made radiation hard to resist such effects through design, material selection, and fabrication methods. (wikipedia.org)
Many of the radiation effects on materials are produced by collision cascades and covered by radiation chemistry. (wikipedia.org)
Radiation can have harmful effects on solid materials as it can degrade their properties so that they are no longer mechanically sound. (wikipedia.org)
This is of special concern as it can greatly affect their ability to perform in nuclear reactors and is the emphasis of radiation material science, which seeks to mitigate this danger. (wikipedia.org)
For metals, exposure to radiation can result in radiation hardening which strengthens the material while subsequently embrittling it (lowers toughness, allowing brittle fracture to occur). (wikipedia.org)
This increases the strength of the material, mitigating the embrittling effect of radiation. (wikipedia.org)
Since the substances are characterized by radiation - because there is a lot of instability of the particles present in the radioactive materials - they can seriously affect, alter and even destroy plant, animal, and human life. (conserve-energy-future.com)
The extent of damage or danger posed to the environment depends on the radioactive material concentration, the energy emitted by the radiation, the proximity of the radioactive materials to those exposed, and the radiation type. (conserve-energy-future.com)
This contaminated water is then used for household purposes and consumed by aquatic life, including fish, eventually leading to radiation exposure. (conserve-energy-future.com)
These come from outer space to our planet with intense radiation as their nature, therefore, causing radioactive pollution . (conserve-energy-future.com)
Several inches of lead, however, are required to stop gamma radiation. (usgs.gov)
Of the three types of radiation, only gamma photons are measured by well-logging equipment, because they are able to readily penetrate dense materials such as rock, casing, and the shell of a logging probe. (usgs.gov)
It is important to distinguish between radioactive material and the radiation it gives off. (cdc.gov)
The best way to protect against neutron radiation is by providing shielding with thick, heavy materials such as lead, concrete, rock, or dirt. (cdc.gov)
This Public Health Statement is the summary radioactive, you can also be exposed to its radiation chapter from the Toxicological Profile for if you are near it. (cdc.gov)
the transmutation reactions which led to the production of these radioisotopes were effected first with the 27-inch cyclotron, which later became the 37-inch cyclotron, in the old Radiation Laboratory, and finally with the 60-inch cyclotron in the Crocker Laboratory. (orau.org)
Henry Becquerel, a French physicist, is said to be the first human to discover evidence of natural radioactivity-which is the spontaneous emission of radiation from a singular material. (moravek.com)
However, since americium is radioactive, you can also be exposed to its radiation if you are near it. (cdc.gov)
Naturally occurring sources of radiation are cosmic radiation from space or naturally occurring radioactive materials in our body or in soil, air, water, or building materials. (cdc.gov)
In this example, a low-dose radiation is delivered to coronary arteries from a radioisotope source, such as .sup.192 Ir or .sup.90 Sr/Y, via a catheter. (justia.com)
Another way of applying radiation to inhibit restenosis is through the use of radioactive stents. (justia.com)
While the theft of a truck carrying radioactive cobalt made international headlines, this was unfortunately not the first time thieves or scavengers have exposed themselves or others to lethal radiation. (fas.org)
In that report, we underscore that even suicidal terrorists would have to live long enough to withstand the lethal radiation of a highly radioactive substance to use it as a radiological weapon. (fas.org)
Based on the news accounts of the recent theft in Mexico, the thieves broke open the box carrying the radioactive cobalt sources and exposed themselves to lethal radiation. (fas.org)
Her love for research, nuclear physics and her husband led her to a new position at the Bronx Veterans Administration in New York, where she built and calibrated radiation detection equipment and created a plan for the safe disposal of radioactive material used in medical diagnosis and treatment. (thecaucusblog.com)
This radioactive waste will need 300,000 years to reach its natural radiation level. (sckcen.be)
External Radiation hazard) of by breathing in the radioactive material ( Internal Radiation hazard). (ionactive.co.uk)
NDT is a process where an article is "tested", and in the case of industrial radiography uses ionising radiation (via a radioactive source, x-ray tube or accelerator) to form an image on radiation sensitive film or real time imaging systems, to detect potential or actual defects. (ionactive.co.uk)
With respect to Radiation Protection , ingestion describes one possible mode by which Radioactive materials may enter the body and therefore present an Internal Radiation protection hazard. (ionactive.co.uk)
With respect to Radiation Protection , injection describes a route by which Radioactive materials may enter the body - thus presenting an Internal Radiation hazard. (ionactive.co.uk)
The internal radiation (hazard) exists where radioactive materials enter the body. (ionactive.co.uk)
The actual radiation dose delivered will depend on the radioactive nature of the material (its half-life and principal emitters) and its physical and chemical properties (its particle size and the biological half-life ). (ionactive.co.uk)
Radiation Shielding Windows used in nuclear installations, are viewing devices, which allow direct viewing into radioactive areas while still providing adequate protection to the operating personnel. (cgcri.res.in)
Manufacturers would need to ensure that these materials are adequately shielded to prevent any harmful radiation exposure to users. (techmobis.com)
Internal exposure to Cs-137, through ingestion or inhalation, allows the radioactive material to be distributed in the soft tissues, especially muscle tissue, exposing these tissues to the beta particles and gamma radiation and increasing cancer risk. (toxindefense.org)
At Longs Peak Hospital, nuclear medicine technologists wear a radiation monitoring badge as well as a ring dosimeter that monitors the dose exposure to their skin, since these professionals use their hands to work with radioisotopes, she explains. (radiologytoday.net)
The Radiation Safety Division assists them in ensuring that facility surfaces are free of contamination and all employees, monitored or not, do not ingest radioactive material," Reiman explains. (radiologytoday.net)
It includes basic radiation reference material, suggestions for designing a preparedness strategy, and practical material that the reader may need in an actual event. (medscape.com)
Ionizing radiation is emitted by radioactive elements and by equipment such as x-ray and radiation therapy machines. (msdmanuals.com)

Radioactive materials possessed under sublicense, naturally occurring radioactive material, technologically enhanced radioactive material, and uranium and thorium salts are regulated for possession and disposal at the University. (uh.edu)
For example, Uranium-238 changes into Lead-206. (rae.org)
For example, uranium-238 ultimately transforms into a stable atom of lead. (cdc.gov)
This cycle starts, at its "front end", with the mining of uranium and ends with the possession of millions of tons of radioactive waste that must -- to varying degrees and for varying periods -- be isolated from the human environment. (ccnr.org)

Such wastewater is highly radioactive and contains dozens of radioactive materials that are seriously harmful to human being and the environment. (globaltimes.cn)

Certain radioactive nuclei emit alpha particles. (cdc.gov)

Scientific society has approached the management of radioactive waste differently from the management of other waste types. (intechopen.com)

The effects from space or naturally occurring radioactive of exposure to any hazardous substance depend on materials in our body or in soil, air, water, or the dose, the duration, how you are exposed, building materials. (cdc.gov)

The main focus of this study is on hazardous and radioactive wastes accompanying with their Different technologies developed for management. (intechopen.com)
These wastes could be corrosive, inflammable, explosive, or react when exposed to other materials. (intechopen.com)
Management of radioactive wastes is an important issue that needs to be resolved if nuclear power is to make a significant contribution to the country's power requirement. (cgcri.res.in)

During its lifetime, concrete will change properties naturally due to its normal aging process, however nuclear exposure will lead to a loss of mechanical properties due to swelling of the concrete aggregates, and thus damaging the bulk material. (wikipedia.org)

The energies of the beta-particles from a radioactive source forms a spectrum up to a maximum energy - see figure below. (wikibooks.org)
However, beta particles carry enough energy to cause burns on exposed skin and present an internal hazard if we breathe or eat beta-emitting radioactive material or if the radioactive material is introduced through an open wound. (cdc.gov)
Gamma rays also can be an internal hazard if we breathe or eat gamma-emitting radioactive materials, or if the radioactive material is introduce through an open wound, but the damage they do to cells inside our bodies is not as severe as that done by alpha and beta particles. (cdc.gov)

The core does not have enough fissile material to spontaneously keep the chain reaction going. (sckcen.be)

Alpha particles can be stopped by a thin layer of light material, such as a sheet of paper, and cannot penetrate the outer, dead layer of skin. (cdc.gov)

The largest known complete stable nucleus is lead-208 which contains 208 neutrons and protons. (newworldencyclopedia.org)
By working with lead-bismuth as a coolant, the neutrons maintain their speed. (sckcen.be)
The downside is that with slow neutrons, you involuntarily produce more long-lived radioactive waste. (sckcen.be)

Disclosed is a radioactive waste treatment process for transmuting long-lived radioisotopes into short-lived radioisotopes through applied nuclear physics. (rexresearch.com)
We had learned that Professor George H. Whipple of the University of Rochester was hoping to have a reasonably long-lived radioisotope of iron for use in his studies of hemoglobin in human blood. (orau.org)

Exposure to radioactive or nonradioactive materials via ingestion is a major exposure pathway to human and animals. (researchsquare.com)

The Environmental Protection Agency (EPA) must also consider the other chemicals or identifies the most serious hazardous waste sites in radioactive materials you're exposed to and your the nation. (cdc.gov)
Rapid trend of industry and high‐technological progress are the main sources of the accumulation of hazardous materials. (intechopen.com)
[ 1 ] The main challenge was adapting the existing models, whose primary focus was containing a hazardous material release, to one that reflected the chaos of a large-scale disaster involving a large number of affected individuals. (medscape.com)

For an electrode for cold nuclear fusion, an element whose atomic number is close to that of a precious metal or a rare element is chosen as a substance which can cause nuclear transformation, or a material for the nuclear transformation of a precious metal and a rare element. (rexresearch.com)
It takes a few inches of lead or other dense substance to block gamma rays. (cdc.gov)
Quantities of americium, as well as other normally exposed to a substance only when you radioactive elements, can be measured in units of come in contact with it. (cdc.gov)

PIs are responsible for implementing effective radioactive waste management procedures in the labs. (uh.edu)
They must provide adequate radioactive material labeled receptacles for each radioisotope and type of radioactive waste generated. (uh.edu)
Radioactive waste should not be stockpiled in the lab. (uh.edu)
A radioactive waste area should be located away from heavy traffic or high use areas. (uh.edu)
Do not, under any circumstances, place radioactive waste where it might be picked up by housekeeping personnel and be disposed of as ordinary waste in the dumpsters. (uh.edu)
Accidental and improper radioactive waste pick-up and/or disposal must be reported immediately to the RSO. (uh.edu)
For this initiative to succeed, it is necessary that all PIs and laboratory personnel follow proper radioactive waste procedures as much as possible. (uh.edu)
Radioactive waste must be segregated by radioisotope and physical form. (uh.edu)
Solid radioactive waste is comprised mostly of solid disposable items that have been contaminated with radioactive material including absorbent work surface coverings, gloves, tubing, etc. (uh.edu)
This waste is disposed in yellow radioactive material bags supplied by EHS. (uh.edu)
The use of any other type of plastic bag to collect the solid radioactive waste in the laboratory is prohibited. (uh.edu)
The yellow radioactive material bags must be placed in waste receptacles that remain closed at all times. (uh.edu)
Deface or remove all radioactive labels before placing waste into the bags. (uh.edu)
Do not mix liquid scintillation vials, lead pigs, and stock vials with the solid waste, especially sharps. (uh.edu)
Plastic source vial containers, but not the lead impregnated type, may be disposed in the solid waste after being defaced of all radioactive labels. (uh.edu)
Every bag must be securely sealed and have a completed Radioactive Waste Disposal Form attached prior to pickup. (uh.edu)
Radioactive contaminated glassware and other unbroken glass must be packaged separately from other solid radioactive waste. (uh.edu)
When full, securely cap the tube and have a completed Radioactive Waste Disposal Form attached prior to pickup. (uh.edu)
Radioactive liquid waste can be further divided into aqueous, acids and bases, and pump oils. (uh.edu)
Methods for treating radioactive waste by transmutation and for forming a superconductive material from a plurality of constituents, as well as methods for forming improved semiconductor devices, improved atomic lattice structures and improved molecular structures and ionic compounds, are described along with selection rules for fine tuning these methods. (rexresearch.com)
Correspondence to: M. Shamsuzzaman, Health Physics and Radioactive Waste Management Unit, Institute of Nuclear Science and Technology, Atomic Energy Research Establishment, Dhaka, Bangladesh. (sapub.org)
Near-surface repositories are accepted publicly in many countries as a good option for low or intermediate level radioactive waste (L/ILW) disposal that generates at nuclear power plants [1]. (sapub.org)
Migration of radionuclides in a wet geological formation and engineered barrier is one of the most important factors to be considered for safety evaluation of a radioactive waste disposal facility [3, 4]. (sapub.org)
Radioactive waste was generated from use of radioactivity, in many but not all cases. (intechopen.com)
Radioactive waste is defined as the material that contains or is contaminated with radionuclides at concentrations or activities greater than clearance levels as established by regulatory authorities. (intechopen.com)
Nuclear energy produces a lot of electricity but also generates radioactive waste. (sckcen.be)
It functions as feed base glass to produce vitrified product during Immobilization of Radioactive Waste. (cgcri.res.in)
Longer-lasting smartphones could lead to a reduction in electronic waste, as consumers would upgrade their devices less frequently. (techmobis.com)

The potential impact of released radioactive contaminants into the environment has received growing attention due to nuclear accidents, which pose serious problems to biological systems. (intechopen.com)

Use a radioisotope disposal form to document this every time. (uh.edu)
These tubes are only for the disposal of radioactive contaminated sharps. (uh.edu)
Where or who do we contact for disposal of these old radioactive materials? (edu.au)

Internal contamination occurs through ingestion, inhalation or absorption through skin contact of radioactive materials. (researchsquare.com)
The materials can enter via inhalation , ingestion , absorption or injection . (ionactive.co.uk)

Inhalation can occur where the radioactive material is airborne, volatile or being processed in such a way as to make the inhalation route possible. (ionactive.co.uk)

Our school recently found a cardboard box of radioactive minerals which have been stored at the back of the cupboard. (edu.au)

Depending on the radionuclide, this process could be fast or take a very long time - radioactive half-lives can range from milliseconds to hours, days, sometimes millions of years. (cdc.gov)

By formation of reactive compounds, affecting other materials (e.g. ozone cracking by ozone formed by ionization of air). (wikipedia.org)
Specific kinds of radioactive compounds called radiotracers (radioactive tracers) can track the progress of certain tagged chemicals throughout the human body. (moravek.com)

With such an extensive use of radionuclides there is an increased possibility of humans getting exposed to them leading to external and/or internal contamination. (researchsquare.com)
Exotic radionuclides such as for instance 44 Ti, 60 Fe, 26 Al, 10 Be and many others are of great interest in several research domains like astrophysics, nuclear medicine, geophysics, fundamental nuclear physics or radioactive beam facilities. (psi.ch)
New approaches in systemic radioisotope therapy require radionuclides that have different nuclear properties in comparison to those used for diagnostics. (psi.ch)

Because the fireball does not reach the ground and does not pick up any surface material, the radioactivity in the fallout from an air burst is relatively insignificant compared with a surface burst . (cdc.gov)
Quantities of americium, as well as other radioactive elements, can be measured in units of mass (grams), but are usually measured in terms of their radioactivity (curies or becquerels). (cdc.gov)

Radiochemistry is a specified scientific branch that studies the chemistry of radioactive material or substances. (moravek.com)
Rather, radioactive substances (such as cobalt-60) can successfully kill off microorganisms found on organic food items such as produce. (moravek.com)
Through her Ph.D. research she became adept at building instruments to manipulate and measure radioactive substances. (thecaucusblog.com)
Transmutation converts radioactive substances with a long life span into less toxic substances with a short life span. (sckcen.be)

The use of nuclear missiles and atomic bombs, a form of nuclear energy, in the Second World War explains not only the cause but also the damaging nature of radioactive pollution or contamination. (conserve-energy-future.com)
Radioactive contamination of the environment has occurred not only through use of radiological dispersal devices (dirty bomb) but also through other means like destruction of nuclear reactors or by virtue of an industrial or military nuclear accident. (researchsquare.com)
A nuclear disaster leads to both external and internal contamination of the radioisotopes. (researchsquare.com)
It includes the contamination of skin surface, foodstuff, water and gamma radiations from the spread of radioisotopes in the atmosphere. (researchsquare.com)

This could lead to accumulation and potentially adverse reactions in critical organs such as liver, heart, and even brain, consistent with the hypothesis that ultrafine insoluble particles may play a role in the onset of cardiovas- cular diseases, as growing evidence from epidemiological studies suggests. (cdc.gov)

By nuclear transmutation of the elements within the material including, for example, the production of Hydrogen and Helium which can in turn alter the mechanical properties of the materials and cause swelling and embrittlement. (wikipedia.org)

Professionals expertly use basic ideas of organic, inorganic, physical, and analytical chemistry to manipulate radioactive material. (moravek.com)

Other sources of these radiations include radioactive elements in the earth's crust. (conserve-energy-future.com)

formed nuclide may be stable or radioactive. (cdc.gov)

In another recent study , published in Advanced Healthcare Materials , researchers engineered Escherichia coli to recruit radioactive molecules to tumor sites, thereby avoiding effects associated with traditional radiotherapy. (aacr.org)

It uses a radioisotope as its power source. (universetoday.com)
This device, driven by a radioisotope heat source, will allow an order of magnitude increase in mass-specific power (~30 vs ~3 W/kg) and a three orders of magnitude decrease in volume (~0.2 vs ~212 L) as compared to a conventional multi-mission radioisotope thermal generator (MMRTG)," Polly explained in a brief press release . (universetoday.com)
Some known techniques of irradiating stent materials suffer the disadvantage of requiring the use of the neutron beam of a nuclear reactor in conjunction with an ion-implanter equipped with a sublimation source. (justia.com)
When the scavengers broke open the protective seal of the radioactive source, they saw a blue glowing powder: cesium chloride. (fas.org)
To put this Curie content in perspective, a source with 100 or more Curies of gamma-emitting radioactive material would be considered a source of security concern. (fas.org)
For an in-depth assessment of the radioisotopes of security concern and the commercial radioactive source industry, see the January 2003 report "Commercial Radioactive Sources: Surveying the Security Risks," by myself, Tahseen Kazi, and Judith Perrera. (fas.org)
The source material is mounted in the recess of the plastic disc with an aluminized Mylar window. (unitednuclear.com)
Also other irradiated material like carbon (a valuable source for 10Be), stainless steel or concrete is available in small amounts. (psi.ch)
According to the parameters and requirements of the radioactive source, set the specifications and dimensions of the storage box. (rayshielding.com)

In addition to these local consequences, Canadian reactor technology and fissile material has been hawked internationally, with consequences for the proliferation of nuclear weapons in at least one volatile region of the world. (ccnr.org)

As materials for rare elements, chemical species such as the halogen family, alkaline metals, Po and W are chosen. (rexresearch.com)
Radioactive elements fell in our laps as though we were shaking apples off a tree. (orau.org)
Conclusively, scientists use radioactive elements to measure the current ratio of the organism. (moravek.com)

curie (Ci) and the becquerel (Bq) tell us how much same mass, 241Am is about 17 times more a radioactive material decays every second. (cdc.gov)
Both the curie (Ci) and the becquerel (Bq) tell us how much a radioactive material decays every second. (cdc.gov)

High energy beta and gamma emitters must be stored behind appropriate shielding material to minimize the external exposure to lab personnel. (uh.edu)
Gamma-ray emitters Activities of radioisotopes were determined in the cat litters using gamma-ray spectroscopic measurements. (aarst.org)

What are the requirements to keep radioactive sources? (edu.au)
All our Radioisotope sources are NRC Exempt 'safety sealed' sources. (unitednuclear.com)
These radioactive sources are low level and exempt from Nuclear Regulatory Commission (NRC) regulations and licensing. (unitednuclear.com)
Also, if you are ordering many sources at once, (depending on the particular activity of the sources) we may have to include a lead pig to comply with postal regulations - which is an additional charge. (unitednuclear.com)
This has led to a quest for alternative power sources that can provide sustained energy. (techmobis.com)
It is suitable for storage and transportation of radioactive sources. (rayshielding.com)

Gamma rays are primarily an external hazard because of their ability to go through material. (cdc.gov)

A Credible Radioactive Threat to the Sochi Olympics? (fas.org)

In combination with imaging devices which register the gamma rays emitted from within, Radioisotopes can be used for imaging to study the dynamic processes taking place in various parts of the body. (thecaucusblog.com)
Lead provides the most protection from gamma rays. (ua-referat.com)

Of course, if the terrorists or thieves have training in safely handling radioactive materials, then they would not kill themselves in the process of accessing the material and making it into a weapon. (fas.org)

Sharps are defined as anything that could tear the yellow radioactive material bag including needles, razor blades, capillary tubes, broken glass etc. (uh.edu)
Injection routes can obviously occur where needles are used to handle or administer radioactive materials, but may also be present where any sharp object is contaminated with radioactive materials which then causes a wound. (ionactive.co.uk)

This radioactive process extends the shelf-life of these products to keep them fresh for a longer period of time. (moravek.com)
It detected radioactive tritium in seawater off the Fukushima Daiichi nuclear power plant for the first time on August 31, the plant operator Tokyo Electric Power Company (TEPCO) said the following day. (globaltimes.cn)
One of the indirect evidences that evolutionists universally appeal to is radioactive dating because it appears to supply the deep time their evolutionary models demand. (icr.org)
But this presents a problem for any given material since no one can go back in time and measure that number. (icr.org)

The toxicity of white phosphorus led to its discontinued use in matches. (citizendium.org)

Nuclear wastewater is generated during the normal operation of nuclear reactors and the application of radioisotopes in nuclear power plants, such as reactor coolants. (globaltimes.cn)
Testing materials is essential to warrant and improve the safety of nuclear power plants. (sckcen.be)

In mice, the modified E. coli selectively colonized solid tumors and attracted a therapeutic radioisotope that had been delivered systemically. (aacr.org)
BUSINESS WIRE )-- NorthStar Medical Radioisotopes , LLC, a global innovator in the development, production and commercialization of radiopharmaceuticals used for therapeutic and medical imaging applications, today announced a corporate update highlighting progress across its key programs during the past twelve months, and indicating important upcoming milestones. (businesswire.com)
NorthStar is poised to be the first commercial-scale producer of therapeutic radioisotopes Cu-67 and non-carrier added (n.c.a. (businesswire.com)

This release does not always lead to exposure. (cdc.gov)

Examples of radioactive stents are described, in U.S. Pat. (justia.com)

A majority of radon entry into a house occurs at the soil-foundation interface, with minor contributions from groundwater use, building materials, and outdoor air. (aarst.org)
Samples of the cat litters, with weighs of 143-734 g, were individually sealed inside a 55-L airtight chamber to allow the emanating radon to ingrow to radioactive equilibrium in the enclosed air. (aarst.org)

You must also consider the other chemicals or radioactive materials you're exposed to and your age, sex, diet, family traits, lifestyle, and state of health. (cdc.gov)

an assessment of radioactive materials that may be present inside a person's body through analysis of the person's blood, urine, feces, or sweat. (cdc.gov)

There are legitimate concerns regarding the potential risks associated with using radioactive materials in everyday devices. (techmobis.com)

Do these minerals need to be stored in a metal container or glass jar like our radioactive samples or is the original box still okay? (edu.au)

One such technique delivers a radioactive dose via catheter, prior to stent implantation. (justia.com)

Radioactive daughter products (radioisotopes) caused by the collision of cosmic rays with the atmosphere and other materials, including living tissues. (wikipedia.org)
Nuclear Fallout is the residual radioactive material propelled into the upper atmosphere following a nuclear blast or a nuclear reaction conducted in an unshielded facility, so called because it "falls out" of the sky after the explosion and shock wave have passed. (beforeitsnews.com)

Chemicals and Drugs12

Analytical, Diagnostic and Therapeutic Techniques and Equipment7

Phenomena and Processes6

Disciplines and Occupations3

Technology, Industry, Agriculture2

Humanities1

Information Science2

Health Care6

Isotopes22

Isotope14

Decay21

Atoms14

Cesium-1374

Radiation43

Uranium4

Highly radioactive1

Nuclei1

Management of radioactive waste1

Space or naturally occurring r1

Wastes3

Naturally1

Beta-particles3

Spontaneously1

Alpha particles1

Neutrons3

Long-lived2

Nonradioactive1

Hazardous3

Substance3

Waste28

Contaminants1

Disposal3

Ingestion2

Inhalation1

Cardboard box1

Radionuclide1

Compounds2

Radionuclides3

Radioactivity2

Substances4

Contamination4

Accumulation1

Transmutation1

Manipulate1

Radiations1

Stable1

Tumor1

Source9

Fissile material1

Elements3

Becquerel2

Emitters2

Sources6

Hazard1

Threat1

Gamma rays2

Safely1

Needles2

Time4

Phosphorus1

Nuclear power2

Therapeutic3

Exposure1

Examples1

Radon2

Chemicals1

Assessment1

Risks1

Minerals1

Dose1

Atmosphere2