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A radioactive source is a known quantity of a radionuclide which emits ionizing radiation, typically one or more of the radiation types gamma rays, alpha particles, beta particles, and neutron radiation. Sources can be used for irradiation, where the radiation performs a significant ionising function on a target material, or as a radiation ...
The Off-Site Source Recovery Project (OSRP) is a U.S. government project funded by the Department of Energy at Los Alamos National Laboratory.The OSRP's mission is to remove excess, unwanted, abandoned, or orphan radioactive sealed sources that may pose a risk to health, safety, and national security.
Sealed radioactive sources are routinely used in formation evaluation of both hydraulically fractured and non-fracked wells. The sources are lowered into the borehole as part of the well logging tools, and are removed from the borehole before any hydraulic fracturing takes place.
An orphan source is a self-contained radioactive source that is no longer under regulatory control.. The United States Nuclear Regulatory Commission definition is: [1]...a sealed source of radioactive material contained in a small volume—but not radioactively contaminated soils and bulk metals—in any one or more of the following conditions:
It went missing Thursday from a truck parked at a restaurant where workers went to buy lunch, Anton said. A search for radioactive sources within a 5 mile radius of the restaurant, just north of ...
In 1997, several Georgian soldiers suffered radiation poisoning and burns. They were eventually traced back to training sources left abandoned, forgotten, and unlabeled after the dissolution of the Soviet Union. One was a caesium-137 pellet in a pocket of a shared jacket that released about 130,000 times the level of background radiation at 1 ...
A "lost source accident" [1] [2] occurs when a radioactive object is lost or stolen. Such objects may appear in the scrap metal industry if people mistake them for harmless bits of metal. [3] The International Atomic Energy Agency has provided guides for scrap metal collectors on what a sealed source might look like.
When using radioactive materials it is necessary to test for accidental contamination, whether from use of liquid unsealed sources or to check for leaking sealed sources. A swab or small absorbent smear can be used to “wipe” an area, the wipe is then placed into a test tube and counted, typically using a gamma counter .
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