Abstract
Formation of by bombardment of , , and with 14-Mev neutrons has been observed. The was identified by its known half-life and the decay rate observed on a ten-channel time-delay analyzer. Beta-rays from the were detected by means of a thin-walled proportional counter, and the over-all counting efficiency was determined by using the reaction. Cross sections determined for the , , and reactions were 6.7±0.8, 9.8±1.1, and 10±1 millibarns, respectively. The half-life of was found to be 0.83±0.03 second.
- Received 25 September 1952
DOI:https://doi.org/10.1103/PhysRev.89.80
©1953 American Physical Society