Abstract
This paper summarizes part of the work on spontaneous nuclear fission performed at Los Alamos before 1945. The experimental technique used to detect spontaneous fission in the heavy alpha-active elements has been described, and the decay constants for spontaneous fission observed in a number of substances have been listed. The number of neutrons emitted per spontaneous fission of has also been measured and found to be 2.2±0.3.
- Received 17 July 1951
DOI:https://doi.org/10.1103/PhysRev.86.21
©1952 American Physical Society