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cesium 137 division

USDA | OHSEC | Radiation Safety Division | Irradiators

The source of the radiation is typically a cobalt (Co-60) or cesium (Cs-137) sealed source. The radioactive source is completely contained in lead shielding, which is an integral part of the irradiator equipment. ... The Radiation Safety Division (RSD) inspects each irradiator location. ...

USDA | OHSEC | Radiation Safety Division | Radionuclide ...

Cesium (Cs-137) Cesium (Cs-137) is a radioactive isotope of cesium, which is a product of nuclear fission. It has an atomic number of 55 and a half-life of 30.2 years. It emits a beta particle, and it also emits 662 kev gamma rays. Cesium (Cs-137) is an external radiation hazard.

GROUNDWATER INFORMATION SHEET Radionuclides

Division of Water Quality GAMA Program Revised November 2017 1 ... including tritium, strontium-90, cesium-137, and products of radium decay. Beta emitters have many uses, especially in medical diagnosis, imaging, and treatment. They can also be used as tracers in agricultural

Persistence and Decontamination of Radioactive Cesium-137 ...

Western Ecology Division . EPA/600/R-18/017 February 2018 . Persistence and Decontamination of Radioactive Cesium-137 in a Model Drinking Water System . by . Jeffrey Szabo U.S. Environmental Protection Agency Office of Research and Development Homeland Security Research Program

Cesium Data Sheet - Mineral Commodity Summaries 2020

Cesium-137 may be used in industrial gauges, in mining and geophysical instruments, and for sterilization of food, sewage, and surgical equipment. Because of the danger posed by the radiological properties of cesium-137, efforts to find substitutes in its applications continued.

Cesium Communications

Cesium Communications takes its name from element number 55. Cesium is the most electropositive of all elements. Vigorous in its interactions with other substances, it is used in high-end electronic tubes and photoelectric cells. One particular isotope (Cesium 137) is used in cancer research and radiation therapy. Cesium is also self luminescent.

Certificate No. 9215, Rev. 10 Package ID No. USA/9215/B(U).

cesium- 137 source. In order to complete the project, we requested authorization from NRC to ship the cesium-137 source, and -after review -NRC modified the Certificate of Compliance accordingly. The cesium-137 shipment from Uruguay was delayed for other reasons until mid 2011, when it was completed without incident.

Tennessee Department of Environment and Conservation ...

DIVISION OF RADIOLOGICAL HEALTH RADIOACTIVE MATERIAL LICENSE Amendment 93 Supplementary Sheet Page 4_of 14 Pages R. Cesium 137 S. Cesium 137 R. Sealed sources (Model numbers listed in NRC Registry of Sealed Sources and Devices No. CA598D106S) S. Sealed sources (J. L. Shepherd & Associates Model 6810 Capsule) T. Sealed sources

Oak Ridge Reservation: Rala, Iodine-131 & Cesium-137 ...

Originating Office: Analytical Chemistry Division ... solids, and oil and grease. Radionuclides frequently tested for include beryllium-7, cobalt-60, cesium-137, potassium-40, and plutonium-238 and -239 with results usually expressed in becquerels/kilogram (Bq/Kg) or micrograms per milliliter (ug/ml). Sites tested include Solid Waste Storage ...

Cesium Chloride | Memorial Sloan Kettering Cancer Center

Cesium is an alkali metal, the radioactive isotope (Cesium 137) of which is employed in radiation therapy. Cesium chloride, a non-radioactive salt, is promoted as an alternative cancer treatment. Also known as "high pH therapy," it is based on findings that cancer cells have an affinity for cesium …

Why are cesium-137, strontium-90, and iodine-131 the ...

The 137 Te decays to 137 I, which decays to 137 Xe, ... The 90 Sr is not released as easily from damaged fuel as are the iodine and cesium, but it is a radionuclide of significant biological concern because it behaves biochemically similarly to calcium, accumulating in …

Deer Meat Contaminated With Cs-137 at Brookhaven National ...

Cesium entering the body distributes in soft body tissues. Skeletal muscles have been reported to have higher concentrations than other tissues, but the differences are not large. Cesium is eliminated from the body mostly through urine, following a retention function of the form: R(t) = a e^(-0.693 t …

Radionuclide Basics: Cesium-137 | US EPA

Cesium-137 is significant because of its prevalence, relatively long half life (30 years), and its potential effects on human health. Cesium-137 emits beta particles as it decays to the barium isotope, Ba-137m (half life = 2.6 minutes). How are people exposed to cesium-137? People may be exposed externally to gamma radiation emitted by cesium ...

USDA | OHSEC | Radiation Safety Division | Instrumentation

Cesium (Cs-137), Chromium (Cr-51), Zinc (Zn-65), Portable survey instruments must be calibrated yearly by commercial firms or other qualified individuals. Detection efficiencies for radioisotopes used in the laboratory should also be determined.

Caesium-137 - Wikipedia

Caesium-137 (137 55 Cs), or radiocaesium, is a radioactive isotope of caesium that is formed as one of the more common fission products by the nuclear fission of uranium-235 and other fissionable isotopes in nuclear reactors and nuclear weapons.Trace quantities also originate from natural fission of uranium-238.It is among the most problematic of the short-to-medium-lifetime fission products.

Washington State Department of Health – Office of ...

Cesium-137 (137Cs) January 2003 Fact Sheet 320-077 Division of Environmental Health Office of Radiation Protection WHO DISCOVERED CESIUM? In 1860, R. W. Bunsen and G. R. Kirchoff discovered the element (the first to be discovered by the useof the spectroscope) and named it for the two bright blue lines characteristic of its spectrum.

Oak Ridge Reservation: Rala, Iodine-131 & Cesium-137 ...

Cesium-137 Cesium-137 is a radioactive metal with a half-life of approximately 30.17 years. It is one of the main fission by-products of the chemical processes that yield plutonium and other enriched nuclear fuels. From the early 1940s to the 1960s, ORNL produced sizable quantities of the nuclide.

Cesium-137: A Deadly Hazard - Stanford University

Cesium-137 is an especially dangerous fission product because of its high yield during fission, moderate half-life, high-energy decay pathway, and chemical reactivity. Because of these properties, cesium-137 is a major contributor to the total radiation released during nuclear accidents. Finally, a discussion of its practical applications is ...

USDA | OHSEC | Radiation Safety Division | Nuclear Gauges

The source of the gamma radiation is typically a cesium (Cs-137) sealed source of about 8 to 10 milli-Curies. For measuring water density, the radioactive source emits neutrons and then measures the returning scattered neutrons. ... A Permit issued by the Radiation Safety Division allows use of a nuclear gauge at temporary job sites without any ...

Cesium Chloride | Memorial Sloan Kettering Cancer Center

Cesium is an alkali metal, the radioactive isotope (Cesium 137) of which is employed in radiation therapy. Cesium chloride, a non-radioactive salt, is promoted as an alternative cancer treatment. Also known as "high pH therapy," it is based on findings that cancer cells have an affinity for cesium ions (1).

CDC Radiation Emergencies | Radioisotope Brief: Cesium-137 ...

External exposure to large amounts of Cs-137 can cause burns, acute radiation sickness, and even death. Exposure to Cs-137 can increase the risk for cancer because of exposure to high-energy gamma radiation. Internal exposure to Cs-137, through ingestion or inhalation, allows the radioactive material to be distributed in the soft tissues ...

USDA | OHSEC | Radiation Safety Division | Irradiators

Caesium-137 (137 55 Cs), or radiocaesium, is a radioactive isotope of caesium that is formed as one of the more common fission products by the nuclear fission of uranium-235 and other fissionable isotopes in nuclear reactors and nuclear weapons.Trace quantities also originate from natural fission of uranium-238.It is among the most problematic of the short-to-medium-lifetime fission products.

FACT SHEET: EPA FACTS ABOUT CESIUM-137

Cesium-137 is significant because of its prevalence, relatively long half life (30 years), and its potential effects on human health. Cesium-137 emits beta particles as it decays to the barium isotope, Ba-137m (half life = 2.6 minutes). How are people exposed to cesium-137? People may be exposed externally to gamma radiation emitted by cesium ...

Cesium-137 | Cs - PubChem

Cesium Cs 137 is a radioactive isotope of cesium with an atomic mass of 139 and potential application in radiotherapy. Cesium Cs 137 is prevalent due to its spontaneous production, which occurs as a result of nuclear fission of other radioactive materials, such as uranium and plutonium.This radionuclide has a relatively long half-life, 30 years, and decays by emitting beta particles.