Iridium-192

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Iridium-192, 192Ir
General
Decay mode
Decay energy (MeV)
Isotopes of iridium
Complete table of nuclides

Iridium-192 (symbol 192Ir) is a radioactive

radiotherapy as a radiation source, in particular in brachytherapy. Iridium-192 has accounted for the majority of cases tracked by the U.S. Nuclear Regulatory Commission in which radioactive materials have gone missing in quantities large enough to make a dirty bomb.[7]

The

isomeric transition with a half-life of 241 years,[8]
which makes it unusual, both for its long half-life for an isomer, and that said half-life greatly exceeds that of the ground state of the same isotope.

See also

References

  1. ^ "Radioisotope Brief: Iridium-192 (Ir-192)". Retrieved 20 March 2012.
  2. doi:10.7907/26VA-RB25
    .
  3. ^ "Isotope Supplier: Stable Isotopes and Radioisotopes from ISOFLEX - Iridium-192". www.isoflex.com. Retrieved 2017-10-11.
  4. S2CID 123447679. Archived from the original
    (PDF) on 2019-08-22.
  5. ^ Unger, L M; Trubey, D K (May 1982). Specific Gamma-Ray Dose Constants for Nuclides Important to Dosimetry and Radiological Assessment (PDF) (Report). Oak Ridge National Laboratory. Archived from the original (PDF) on 22 March 2018.
  6. ISBN 978-0-07-028121-9
    .
  7. ^ Steve Coll (March 12, 2007). "The Unthinkable". The New Yorker. Retrieved 2007-03-09.
  8. doi:10.1016/j.nuclphysa.2003.11.001
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