Abstract
We have measured the half-life of the electron-capture (ec) decay of in a metallic environment, both at low temperature , and also at room temperature. We find the half-lives at both temperatures to be the same within . This demonstrates that a recent claim that the ec decay half-life for changes by under similar circumstances certainly cannot be generalized to other ec decays. Our results for the half-life of , d at room temperature and d at K, are consistent with, but much more precise than, previous room-temperature measurements. In addition, we have also measured the half-lives of the -emitters and at both temperatures, and found them also to be unchanged.
- Received 27 August 2009
DOI:https://doi.org/10.1103/PhysRevC.80.045501
©2009 American Physical Society