Iridium

Iridium-192 is a radioactive isotope of Iridium, formed by neutron irradiation of stable Ir-191 in a nuclear reactor.

Emits high-energy gamma rays and beta particles, making it ideal for medical and industrial use.

Chemically, it is a dense, silvery-white metal that does not rust in natural conditions.

SymbolIr
Mass Number192
TypeRadioactive Isotope
Half-life~73.83 days
Decay ModeBeta & Gamma

Key Properties

  • Strong penetrating radiation makes it ideal for medical and industrial use.
  • Used in brachytherapy (internal radiation therapy) for treating cancers.
  • Used in non-destructive testing (NDT) via gamma radiography.
  • Highly radioactive—requires strict shielding and handling.
  • Delivered in tiny radioactive seeds for targeted radiation with minimal damage to healthy tissues.
Iridium Sample

Interesting Facts

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Iridium-192 is one of the most widely used radioactive isotopes in the world, valued for its effectiveness and compact form in both medicine and industry.