Abstract
The value of the electron capture branching ratio of to the 478 keV state in has been measured using sources of determinable intensity fabricated by capturing in silicon surface barrier detectors recoils from the reaction at Results from independent measurements utilizing detectors implanted in a scattering chamber and in the focal plane of a magnetic spectrograph are in good agreement. An absolute determination of the rate at which the 478 keV gamma rays were emitted from each source yielded a weighted average value of 10.6±0.5% for the branching ratio. This result is in agreement with the previously accepted value of 10.37±0.12% and does not support the recent suggestion that the branching ratio is appreciably larger.
RADIOACTIVITY , MeV; enriched target; measured ; silicon surface barrier detector; measured , ; Ge(Li) detector; deduced branching ratio of to 478 keV state in .
- Received 10 March 1983
DOI:https://doi.org/10.1103/PhysRevC.28.875
©1983 American Physical Society