Abstract
Cross sections for the production of rays by the inelastic scattering of neutrons in have been measured for incident neutron energies in the range 1.81 to 5.25 Me -ray angular distributions have been measured for radiation of sufficient intensity at neutron energies of 1.81 and 4.0 MeV. The angular distributions compare favorably in shape with the theoretical predictions of the Satchler formalism using the neutron penetrabilities of Beyster and of Perey and Buck, but there are small differences in absolute cross sections which can be resolved in part through the incorporation of a correction for Moldauer level-width fluctuations. A multipole amplitude mixing ratio of was determined for the , transition from the 2.961-MeV() to the 1.409-MeV() level. Branching ratios for the rays stemming from the 2.961-MeV level and the 3.161-MeV level were also determined experimentally.
- Received 12 June 1967
DOI:https://doi.org/10.1103/PhysRev.163.1252
©1967 American Physical Society