Spin assignments in low-energy neutron-capture reactions using polarized neutrons and oriented target nuclei
Identifieur interne : 001A00 ( Main/Exploration ); précédent : 001999; suivant : 001A01Spin assignments in low-energy neutron-capture reactions using polarized neutrons and oriented target nuclei
Auteurs : J. J. Bosman [Pays-Bas] ; H. Postma [Pays-Bas]Source :
- Nuclear Instruments and Methods [ 0029-554X ] ; 1978.
Abstract
In this paper the combined use of polarized low-energy neutrons and oriented nuclear targets in the study of (n, γ) reactions is discussed in detail. The determination of spins of levels populated by primary gamma transitions is considered. In addition the contribution of I+12 and I−12 capture, I being the target spin, to individual transitions can be obtained. Necessary corrections are derived from transmission and polarization measurements of the neutron beam; hence, detailed knowledge of the relevant neutron cross sections is not necessary. The orientation parameters and final-state spins are obtained with the aid of a simultaneous fitting and iterative procedure applied to all observed primary gamma transitions. This is elucidated with experimental results of the 59Co(n, γ) reaction.
Url:
DOI: 10.1016/0029-554X(70)90187-4
Affiliations:
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