Scattering of Neutrons by α Particles

S. M. Austin, H. H. Barschall, and R. E. Shamu
Phys. Rev. 126, 1532 – Published 15 May 1962
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Abstract

Angular distributions of neutrons scattered by α particles were measured at neutron energies between 2 and 23 Mev by observing recoiling α particles in a high-pressure gas scintillator. At the highest bombarding energy the disintegration of α particles by neutrons was also observed. Total cross sections of helium were measured at four neutron energies between 7 and 12 Mev in a simple transmission experiment. The total cross sections agree with values calculated from the analysis of pα scattering by Dodder and Gammel. The angular distributions agree with these calculations quite well up to a neutron energy of 15 Mev, but not as well at higher energies.

  • Received 8 January 1962

DOI:https://doi.org/10.1103/PhysRev.126.1532

©1962 American Physical Society

Authors & Affiliations

S. M. Austin*, H. H. Barschall, and R. E. Shamu

  • University of Wisconsin, Madison, Wisconsin

  • *Now at Stanford University, Stanford, California.
  • Now at the Australian National University, Canberra, Australia.

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Vol. 126, Iss. 4 — May 1962

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