Abstract
The 44-minute californium alpha emitter previously thought to be has been reassigned to mass number 245 on the basis of milking experiments, excitation functions, cross bombardments, and decay-scheme studies. Californium-245 decays by the emission of (7.11±0.02)-Mev alpha particles (∼30%) and by orbital electron capture (∼70%). The new isotope was also identified and found to decay by the emission of (7.17±0.02)-Mev alpha particles with a half-life of 25±3 minutes. The mass assignment of this isotope was established by its genetic relationship to and by the excitation function for its formation by the () reaction on .
- Received 16 January 1956
DOI:https://doi.org/10.1103/PhysRev.102.747
©1956 American Physical Society