Abstract
Photoneutron cross sections, including , , and for and for , were measured with monoenergetic photons from threshold to 29 MeV. The partial cross sections were determined by neutron multiplicity counting, and the average neutron energies for both single- and double-photoneutron events were determined simultaneously with the cross-section data by the ring-ratio technique. The data, when combined with data from other laboratories, appears to show that the () process dominates the decay of the giant resonance in this nucleus. The giant-resonance parameters for are nearly the same as those for , which has the same (magic) neutron number.
- Received 22 July 1970
DOI:https://doi.org/10.1103/PhysRevC.2.2318
©1970 American Physical Society