Elastic Scattering offrom Gold
- 15 December 1958
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 112 (6), 1981-1988
- https://doi.org/10.1103/physrev.112.1981
Abstract
The angular distribution of ions elastically scattered by gold has been measured at the following laboratory energies: 118±2, 101±2, 79.4±3, and 73.6±3 Mev. Heavy ions from the Berkeley heavy-ion linear accelerator (HILAC) were recorded in two Ilford E-1 plates from a scattering angle of 19° to 159°. In all cases the differential cross sections exhibited a Coulomb-like behavior at small angles, a rise above Coulomb of about twenty percent as the scattering angle increased, and then a rapid drop below Coulomb in much the same manner as alpha particles scattered from heavy elements in the 20-40 Mev range. The Blair "sharp cutoff" model reproduces closely the character of the data; however, small oscillations predicted from the model are not experimentally observed. Interaction distances of (11.8±0.3, 12.1±0.3, 11.85±0.4, and 11.85±0.45)× cm, respectively, for the foregoing energies are inferred from application of the Blair model.
Keywords
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