The Level Structure of ¹⁰⁵Pd

Abstract

The structure of ¹⁰⁵Pd levels populated in the decay of 41.29d ¹⁰⁵Ag has been investigated using a 64.1 cc Ge(Li) detector in singles mode and a 64.1 cc Ge(Li)-7.6 cm×7.6 cm NaI(Tl) detector set-up in coincidence mode. The gamma ray singles spectrum measurements confirm the existence of 158.93, 167.5, 202.17, 216.11, 382.5, 486.65, 576.64, 583.01, 844.34, 860.20, 921.23, 929.01 and 1124.90 keV gamma rays in the decay of ^105gAg. However, the 270.5, 564.39, 580.13, 610.0, 640.5, 709.8, 768.9 and 796.25 keV weak transitions reported by earlier workers could not be observed in present investigations. The γ-γ directional correlation coefficients for 7 cascades in ¹⁰⁵Pd have been measured. Out of these the 361–(447)–280 and 807–280 keV cascades have been attempted for the first time. From these correlation measurements the spin value of 1⁄2⁺ has been confirmed for the 673.03 keV level and found the multipole mixing ratios of various transitions in ¹⁰⁵Pd.