Abstract
Two new isotopes, of half-life 49.8±1 hr, and of half-life 63.6±0.3 hr, have been found. The mass assignment of was proven by direct mass separation, and that of by genetic relationship. The isotope was found to emit a 1.5-Mev particle, rays of 1.79, 1.44, 1.09, 0.40, 0.18, and 0.076 Mev, and a x-ray of 0.049 Mev. The mass assignments of , , and were verified.
- Received 27 March 1956
DOI:https://doi.org/10.1103/PhysRev.103.147
©1956 American Physical Society