Abstract
In order to examine the characteristics of lithium-ion-induced Coulomb excitation, and to extend the cross-section ratio technique for the determination of the multipolarity of transitions, a study has been made of the rays emitted following electric excitation of several different target nuclei by and ions in the energy range 1.1 to 2.2 Mev. Measurements have been made of thick-target yields of the 110-kev () and 198-kev () rays from , the 128-kev () ray from , and the 160-kev () ray from and compared with yields calculated from the theoretical cross sections. The yields of the rays studied were observed to increase with beam energy in the manner predicted by theory for electric dipole or electric quadrupole excitation. The ratios of the and induced yields at corresponding (equal ) energies for and transitions after correction for range effects were found to agree, within the estimated errors, with the theoretical predictions for cross-section ratios.
- Received 29 July 1959
DOI:https://doi.org/10.1103/PhysRev.116.1526
©1959 American Physical Society