Abstract
Two-photon decay in capture has been reported as having a branching ratio of relative to single 2.23-MeV -ray emission. It is suggested that this result can be explained by crosstalk effects between detectors due to single rays, principally that associated with annihilation in flight following pair production. The shape of the observed coincidence spectrum is consistent with this type of crosstalk and the apparent two-photon branch is about what is expected from a rough calculation of the magnitude of the crosstalk effect.
- Received 2 June 1975
DOI:https://doi.org/10.1103/PhysRevLett.35.813
©1975 American Physical Society