Decay ofSb127andSb129

Abstract

The techniques of scintillation spectrometry have been applied to the study of the decay of ${\mathrm{Sb}}^{127}$ and ${\mathrm{Sb}}^{129}$. Both decays were found to be too complex to permit complete analysis in the present experiments, but a number of beta- and gamma-ray transitions were measured for each nuclide. In the decay of 93-hour ${\mathrm{Sb}}^{127}$ three beta-ray groups and eight gamma-ray transitions were measured. Coincidences were observed among several pairs of these transitions. In the 9.2-hour ${\mathrm{Sb}}^{129}$ four gamma rays were observed and measured and the end-point energy of the most energetic beta transition was determined.