Straight-Back Elastic Alpha Scattering from Ti-48, Cr-52, Cr-53, and Ni-58
Feb, 1973
4 pages
Published in:
- Phys.Rev.C 7 (1973) 690-694
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Abstract: (APS)
Cross sections are reported for α particles scattered from Ni58, Cr52, Cr53, and Ti48. For the Ni58 target, both elastic and inelastic (to the first excited state) data are presented for α particles of 12 incident energies between 13 and 29 MeV scattered into the angular range from 152° through 180° to -172°. Elastic excitation functions at 180° are given for α particles of six energies between 20 and 29 MeV scattered from Cr52, Cr53, and Ti48. The elastic angular distributions exhibit a narrow "glory peak" at 180° for each energy, and the peak cross section at 180° is sensitively dependent on both the bombarding energy and the target mass. For the case of Ni58, the measured elastic cross sections at 180° are about an order of magnitude larger than values predicted from optical-model calculations with a potential that fits α scattering data forward of 140°.References(17)
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