Tm169(n,2n)Tm168 and Tm169(n,3n)Tm167 cross-section measurements from 15 to 21 MeV

S. W. Finch, M. Bhike, Krishichayan, J. Soter, and W. Tornow
Phys. Rev. C 103, 044609 – Published 14 April 2021

Abstract

The Tm169(n,2n)Tm168 and Tm169(n,3n)Tm167 cross sections have been measured in the neutron energy range between 15 and 21 MeV using the H3(d,n)He4 neutron source reaction. The Tm169(n,3n)Tm167 data are intended to provide an accurate database for interpreting so-called reaction-in-flight neutron yields, which provide a sensitive tool for studying properties of the deuterium-tritium plasma created in inertial confinement fusion laser shots at the National Ignition Facility at Lawrence Livermore National Laboratory. The data are compared to previous data and evaluations for the reaction studied and are found to be in good agreement with the ENDF/B-VIII.0 evaluation, although small adjustments are necessary for the Tm169(n,3n)Tm167 reaction. For the first time in any (n,2n) cross-section measurements to date, a comprehensive data set ranging from threshold to 21 MeV has been obtained by the same group.

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  • Received 22 December 2020
  • Accepted 30 March 2021

DOI:https://doi.org/10.1103/PhysRevC.103.044609

©2021 American Physical Society

Physics Subject Headings (PhySH)

Nuclear Physics

Authors & Affiliations

S. W. Finch1,2,*, M. Bhike1,2, Krishichayan1,2, J. Soter3, and W. Tornow1,2

  • 1Department of Physics, Duke University, Durham, North Carolina 27708, USA
  • 2Triangle Universities Nuclear Laboratory, Durham, North Carolina 27708, USA
  • 3Thayer School of Engineering, Dartmouth College, Hannover, New Hampshire 03755, USA

  • *sfinch@tunl.duke.edu

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Issue

Vol. 103, Iss. 4 — April 2021

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