Comment on “Cross section of the C13(α,n)O16 reaction: A background for the measurement of geo-neutrinos”

W. A. Peters
Phys. Rev. C 96, 029801 – Published 7 August 2017

Abstract

Harissopulos et al. [Phys. Rev. C 72, 062801(R) (2005)] report a cross section from a measurement that used a moderated neutron detector not capable of measuring the neutron energy and therefore unable to determine the relative contribution from neutrons that populate the ground state or excited O16 states in C13(α,n)O16 reactions above 5 MeV. Since the energies of ejected neutrons populating the excited states are 6 MeV lower than those populating the ground state, the corresponding efficiency of their neutron detector for these neutrons was a factor of 2 higher than assumed. Therefore, the reported C13(α,n)O16 cross sections above 5 MeV may be overcalculated by nearly 50%.

  • Received 2 September 2016
  • Revised 18 April 2017

DOI:https://doi.org/10.1103/PhysRevC.96.029801

©2017 American Physical Society

Physics Subject Headings (PhySH)

Nuclear Physics

Authors & Affiliations

W. A. Peters*

  • Physics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA and Department of Physics & Astronomy, University of Tennessee, Knoxville, Tennessee 37996, USA

  • *wapeters@nuclearemail.org

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Original Article

Cross section of the C13(α,n)O16 reaction: A background for the measurement of geo-neutrinos

S. Harissopulos, H. W. Becker, J. W. Hammer, A. Lagoyannis, C. Rolfs, and F. Strieder
Phys. Rev. C 72, 062801(R) (2005)

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Issue

Vol. 96, Iss. 2 — August 2017

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