Abstract
The prompt gamma-rays from thermal nuteron capture in have been studied and the radiative capture cross sections determined as 207±4, 120±3 and 107±2 mb, respectively. There has been a marked increase in the number of transitions observed in and a complete decay scheme for this nucleus is presented. Two primary E2 transitions in have been observed and their partial cross sections are compared with the prediction of the direct capture formalism. The measured neutron separation energies are Si)=8473.61±0.04 keV, Si)=10 609.21±0.04 keV, and Si)=6587.32±0.20 keV.
- Received 3 August 1989
DOI:https://doi.org/10.1103/PhysRevC.41.1272
©1990 American Physical Society