How well does 4He backscattering from low-Z nuclei obey the Rutherford formula? Journal Articles uri icon

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abstract

  • A study of 4He backscattering (150°) cross sections for O, Al, and Si atoms in the energy range 0.6–2.3 MeV has been completed. We conclude that the 4He backscattering cross section for these elements follows the E−2 energy dependence of Rutherford backscattering to 1%–2% over this energy range. These results have significant implications for the use of 4He backscattering as a materials analysis tool for low-Z elements.

publication date

  • April 1, 1983