Level Structure of 77As and 77Se from the Decay of 77Ge

鄭國川(V. K. C. Cheng)；劉遠中(Y. C. Liu)；翁宗賢(T. S. Ueng)

RADIOACTIVITY 77Ge from 76Ge(n,r) ； measured E7,,I,rr-coin ； 77As and 77Se deduced levels ； Natural targets ； Ge(Li) detectors

Chinese Journal of Physics

18卷3期（1980 / 10 / 01）

83 - 95

英文

The level structures of 77As and 77Se have been studied by coincident measurements of gamma-rays from the 77Ge decay using two high-resolution Ge(Li) detectors. In the case of 77As nucleus, twenty-two gated spectra have been obtained, from which a new level scheme is proposed. In this scheme about 100 observed gamma-rays were placed into 34 levels, seven of which are new. In the case of 77Se nucleus, two gated spectra suggested a new level at 416 keV. Comparisons with other proposed A=77 level schemes were discussed.