Abstract
The reactions , , and have been studied with a 180°, double-focussing magnetic spectrometer. The measured energy levels of up to 4.3 Mev are at 1.374, 1.851, 1.906, 2.536, 3.132, 3.212, 3.652, and 4.010 Mev. The measured energy levels of up to 5.2 Mev are at 3.560, 3.639, 3.925, 4.457, and 5.084 Mev. The measured energy levels of up to 4.6 Mev are at 1.682, 4.091, and 4.449 Mev. Standard deviations of 15 to 25 kev have been assigned to these excitation energies. The value for was determined to be 3.872±0.015 Mev, which leads to a mass for of 17.013 856±0.000 017 amu. The value for was determined to be 3.086±0.015 Mev, which leads to a mass for of 20.010 430±0.000 017 amu. Reaction cross sections at 30° lab angle and 2.6-Mev triton energy are presented for each level.
- Received 1 June 1960
DOI:https://doi.org/10.1103/PhysRev.120.914
©1960 American Physical Society