Synthetic radioisotope
Radioisotope that is man-made and is not found in nature / From Wikipedia, the free encyclopedia
A synthetic radioisotope is a radionuclide that is not found in nature: no natural process or mechanism exists which produces it, or it is so unstable that it decays away in a very short period of time. Examples include technetium-99 and promethium-146. Many of these are found in, and harvested from, spent nuclear fuel assemblies. Some must be manufactured in particle accelerators.[1]
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