Polarization of 24-MeV Neutrons Elastically Scattered from C, Al, Fe, Sn, Pb, and Bi

C. Wong, J. D. Anderson, J. W. McClure, and B. D. Walker
Phys. Rev. 128, 2339 – Published 1 December 1962
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Abstract

Employing the 64% polarized neutron source from the T(dn)He4 reaction at 30° for an incident deuteron energy of 7.7 MeV, the angular dependence of the polarization for elastic scattering of 24-MeV neutrons from C, Al, Fe, Sn, Pb, and Bi has been measured from 20° to 70° in 5° steps. The "left" and "right" measurements are obtained by precessing the neutron spin magnetic moment plus and minus 90° with a suitably designed solenoid. The measured polarizations are in reasonable agreement with the optical-model predictions of Bjorklund and Fernbach, provided that the sign of the spin-orbit potential agrees with that deduced from the shell model. The magnitude of the spin-orbit potential (25 times Thomas) is in agreement with that deduced from fitting the proton polarization data.

  • Received 23 July 1962

DOI:https://doi.org/10.1103/PhysRev.128.2339

©1962 American Physical Society

Authors & Affiliations

C. Wong, J. D. Anderson, J. W. McClure, and B. D. Walker

  • Lawrence Radiation Laboratory, University of California, Livermore, California

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Issue

Vol. 128, Iss. 5 — December 1962

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