Iridium-192

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Iridium-192 (symbol Ir192m) is an isotope of Iridium. The "m" denotes that it is a metastable isomer. Iridium-192 is used as an industrial radioisotope to locate areas of weakness in metal pipes and in radiation treatments. Its half-life is 73.83 days. It decays by emitting beta particles and gamma radiation.

Iridium-192 has accounted for the majority of cases tracked by the US Nuclear Regulatory Commission in which radioactive materials have gone missing in quantities large enough to make a dirty bomb.[1]

External links

  1. Steve Coll (March 12, 2007). "The Unthinkable". The New Yorker. Retrieved 2007-03-09.

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