Further Study of the Decay Scheme ofIr192

Abstract

Scintillation spectrometer studies have revealed four high-energy gamma-ray components at 788, 883, 1080, and 1210 kev, with the possibility of a fifth component near 920 kev. The ${\mathrm{Ir}}^{192}$—${\mathrm{Pt}}^{192}$ ground-ground state transition energy has been measured as 1490±20 kev. Level schemes are proposed for ${\mathrm{Pt}}^{192}$ and ${\mathrm{Os}}^{192}$, the product nuclei upon the beta decay of ${\mathrm{Ir}}^{192}$.