Angular Yield of Deuterons and Alphas from the Proton Bombardment of Beryllium

J. A. Neuendorffer, D. R. Inglis, and S. S. Hanna
Phys. Rev. 82, 75 – Published 1 April 1951
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Abstract

A photographic target chamber incorporating limited magnetic deflection of product particles was used to measure the angular yield of deuterons and alphas from the proton bombardment of beryllium at energies up to 1 Mev. The angular variation observed is of the form 1+A1cosθ+A2cos2θ, with relatively large values for A1 indicating strong interference between states of the compound nucleus of opposite parity. The variation of the total cross sections with energy suggests the presence of a state of the compound nucleus at Ep=0.68 Mev, in addition to the states previously known at Ep=0.33 and 0.94 Mev. Range in emulsion vs energy measurements for the light nuclei observed in the reaction are also given.

  • Received 13 November 1950

DOI:https://doi.org/10.1103/PhysRev.82.75

©1951 American Physical Society

Authors & Affiliations

J. A. Neuendorffer*,‡, D. R. Inglis†,‡, and S. S. Hanna

  • Department of Physics, Johns Hopkins University, Baltimore, Maryland

  • *Now with the Operations Evaluation Group, Office of the Chief of Naval Operations, Department of the Navy.
  • Now at Argonne National Laboratory, Chicago, Illinois.
  • Assisted by a contract with the AEC.

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Vol. 82, Iss. 1 — April 1951

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