Energy levels offrom measurements of thermal neutron capture gamma rays
- 1 May 1982
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review C
- Vol. 25 (5) , 2232-2254
- https://doi.org/10.1103/physrevc.25.2232
Abstract
The excited levels of have been determined by use of neutron-capture gamma-ray spectroscopy. Gamma-ray measurements were made with curved-crystal spectrometers of focal lengths 5.8 and 24 m and a pair spectrometer. These experimental data represent the first measurement of gamma transitions depopulating the levels of . We present evidence for the population of 23 levels in up to 1300-keV excitation. The following new configuration assignments were made (listed with the corresponding bandhead energies): , 529.58 keV; , 772.74 keV; [501], 917.49 keV. Comparison of the experimentally determined level structure with theoretical calculations shows best agreement with calculations by Soloviev's group where a Woods-Saxon potential form was used and quasiparticle-phonon coupling was included. The neutron binding energy was determined to be 4713.7 ± 0.3 keV.
Keywords
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