Abstract
The half-lives of six gamma-emitting nuclides were determined by comparison with radium standards, using a lead-shielded ionization chamber. The following results were obtained: : 83.89±0.12 days; : 5.24±0.03 years; : 243.5±0.8 days; days; : 2.07±0.02 years; : 12.2±0.2 years. The errors quoted are twice the standard deviation calculated from a least-squares analysis.
- Received 28 November 1956
DOI:https://doi.org/10.1103/PhysRev.105.1539
©1957 American Physical Society