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Polarization of Neutrons from the N14(d, n0)O15 Reaction

H. M. Epstein*, D. F. Herring†, and K. W. Jones‡

  • The Ohio State University, Columbus, Ohio

  • *Supported by Battelle Memorial Institute fellowship. Present address: Battelle Memorial Institute, Columbus, Ohio.
  • †Present address: General Atomic, San Diego, California.
  • ‡Present address: Brookhaven National Laboratory, Upton, New York.
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Phys. Rev. 136, B131 – Published 12 October, 1964

DOI: https://doi.org/10.1103/PhysRev.136.B131

Abstract

The polarization of neutrons from the N14(d, n0)O15 reaction has been measured at 1.32 MeV for laboratory angles from 0 to 90 deg. The polarization is positive (using the Basel sign convention) and has a maximum value of about 0.10 at 30 deg. The neutrons were produced by bombardment of a 220-keV-thick nitrogen gas target with deuterons from The Ohio State University electrostatic accelerator. The polarization of the neutrons was determined by a measurement of the left-right asymmetry in the scattering of the neutrons from a liquid-helium scintillation counter. Time-of-flight and pulse-shape discrimination techniques were used to reduce the background. Compound nucleus and distorted-wave Born-approximation direct inter-action calculations were carried out and compared with the polarization data as well as with the available differential cross-section measurements.

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Phys. Rev. 136, B131– Published 12 October, 1964
  • Received 18 May 1964

© 1964 American Physical Society

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