Abstract
The cross section for the reaction was measured as a function of neutron energy from 0.35 to 2.6 Mev. The cross section was found to lie below the extrapolation of the thermal cross section except at a peak observed at 1.9 Mev. This peak has a width of about 400 kev and a maximum value of 0.53 barn. The total variation of the cross section at the peak is 0.35 barn. The ratio of the number of disintegrations leading to the ground state of to the number leading to the excited state increases smoothly from 0.2 at 0.35 Mev to a maximum of 2.3 at 1.9 Mev, and decreases again to 0.8 at 2.6 Mev.
- Received 31 May 1951
DOI:https://doi.org/10.1103/PhysRev.83.1148
©1951 American Physical Society