INDIUM-114M AND RELATED COMPOSITIONS APPLICABLE IN BRACHYTHERAPIE

摘要

The preparation of a very fine wire of a homogenous alloy of indium and aluminum of up to ∩17 weight percent of indium-113 or -114m (∩0.3 mm in thickness) for use as a brachytherapy source is disclosed. Also disclosed are methods and compositions of 114mIn for brachytherapy. The 114mIn isotope has a half-life of 49.5 days, an average β-particle energy of 773 keV, and a dose rate of 1.66 rad.g.νCi?-1.h-1. 114m¿In emits a gamma-ray at 190 keV with 16 % intensity useful in diagnostics.