Abstract
The total neutron cross section of has been measured for energies from 0.45 to 2.20 MeV. Neutrons with energy spreads between 15 and 30 keV were produced by the or reaction with protons from a Van de Graaff accelerator. Resonances were observed in the total cross section at laboratory energies of 0.93, 1.11, 1.57, 1.92, and 2.02 MeV with widths of 30, 20, ≤10, ≤15, and 55 keV, respectively. The excitation energies, spins, and parities for the corresponding levels deduced from this experiment are, respectively, 3.37, ; 3.54, (); 3.97, (); 4.30, (); and 4.39, ; where the energies are in MeV.
- Received 20 April 1964
DOI:https://doi.org/10.1103/PhysRev.135.B1347
©1964 American Physical Society