Kernspektroskopische Untersuchungen am Zerfall des115m Cd

Abstract

Nuclear Spectroscopic Investigations in the Decay of 1 ~ s mCd The energy levels in 11Sin at 934, 1 133, 1291, and 1419 keV weakly populated by ,6--decay from 11SmCd have been studied by angular correlation measurements using NaJ(T1)-detectors. The previously measured angular correlations of the (485-934) keV cascade--which is practically isotropic--and the (158-1 133)keV cascade were remeasured with higher accuracy. A 286 keV transition between the 1419 and the 1 133 keV energy levels was observed and the highly anisotropic angular correlation of the (286-1 133) keV cascade was also measured.

Studies on the nuclear structure of115In

“…In this section only the data from radioactive decay [1,2] are considered. We do not discuss the ground, first, and second excited states since their character is well established [1][2][3][4][5].…”

“…Sharma and Devare [8] measured the shape factor of the beta spectrum to this level, reporting that it was of a unique first forbidden type which allowed them Pandharipande 11/2 9/2 9/2 -et al [9] Sturmet al [1] 7/2, 9/2, 11/2 (9/2) (9/2) -Sergeev et al [10] (11/2) (13/2) 9/2 9/2 Koshut and Arya [11] --7/2 -to assume a character 7/2 + for it. No other experimental parameter has been determined to support this assumption.…”