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Study of thermal neutron capture in /sup 32/S

Journal Article · · Chin. Phys.; (United States)
OSTI ID:6335173
The ..gamma..-ray spectrum of the /sup 32/S (n, ..gamma..) reaction at thermal neutron energy is measured by using a Ge(Li) detector. Among 86 ..gamma.. rays identified, 23 are recognized as primary ..gamma.. transitions. The excitation energies of 25 levels and the decay branching ratios are deduced. Three possible levels at 7505.0, 4473.1, and 2884.6 keV were not reported previously. The neutron separation energy of S is determined to be 8641.7 +- 0.6 keV. The thermal neutron capture cross section of /sup 32/S is determined to be 529 +- 26 mb by summing the transition intensities to the ground state of /sup 33/S and comparing with the well-known Au (n, ..gamma..) cross section. The partial capture cross sections of seven primary E1 transitions are calculated by the formula of the Lane-Lynn direct capture theory, and compared with measured values.
Research Organization:
Institute of Atomic Energy, Academia Sinica, P.O. Box 275, Beijing
OSTI ID:
6335173
Journal Information:
Chin. Phys.; (United States), Journal Name: Chin. Phys.; (United States) Vol. 5:4; ISSN CHPHD
Country of Publication:
United States
Language:
English