Abstract
Precision energy measurements have been made on rays in the region from 2.3 to 7.1 MeV by means of Ge(Li) detectors and a gain-stabilized pulse-height analyzer system. The transitions studied include certain non-Doppler-broadened rays occurring in the reactions , , , and and the rays emitted in the radioactive decays of , , , and . In most cases energy calibrations were made with mixed sources and the extension to higher energies depended on the assumption of 1022.01 keV for the energy separation between full-energy-loss and two-escape peaks. The -ray energies in keV, with the nucleus from which they originate in parentheses, were determined to be the following: 2312.68±0.10 (), 2792.68±0.15 (), 4438.91±0.31 (), 5104.87±0.18 (), 5240.53±0.52 (), 5270.60±0.46 (), 5299.03±0.43 (), 6129.96±0.46 (), and 7117.02±0.49 ().
- Received 28 February 1967
DOI:https://doi.org/10.1103/PhysRev.159.830
©1967 American Physical Society