DEVELOPMENT AND VALIDATION OF THE 7LI(P,N) NUCLEAR DATA LIBRARY AND ITS APPLICATION IN MONITORING OF INTERMEDIATE ENERGY NEUTRONS

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Systematics have been created for neutron spectra from the 7Li(p,n) reaction at 0 degrees in the 50-200 MeV proton energy region. The available experimental data in the continuum part of the spectra show satisfactory overall agreement with a representation based on the phase-space distribution corresponding to the three-body breakup process 7Li(p,n 3He){alpha}, with empirical correction factors, which depend regularly on incident energy. Validation of the systematics included folding of the predicted neutron spectra with standard 238U neutron fission cross section. Modeled in this way distributions of neutron-induced fission events agree reasonably with experimental data. KEYWORDS: quasi-monoenergetic neutron beam, monitoring, nuclear ... continued below

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4 p.

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Mashnik, S. G. (Stepan G.); Chadwick, M. B. (Mark B.); Prokofiev, A. (Alexander); Olsson, N. (Nils) & Waters, L. S. (Laurie S.) January 1, 2001.

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Description

Systematics have been created for neutron spectra from the 7Li(p,n) reaction at 0 degrees in the 50-200 MeV proton energy region. The available experimental data in the continuum part of the spectra show satisfactory overall agreement with a representation based on the phase-space distribution corresponding to the three-body breakup process 7Li(p,n 3He){alpha}, with empirical correction factors, which depend regularly on incident energy. Validation of the systematics included folding of the predicted neutron spectra with standard 238U neutron fission cross section. Modeled in this way distributions of neutron-induced fission events agree reasonably with experimental data. KEYWORDS: quasi-monoenergetic neutron beam, monitoring, nuclear data library, MCNPX code.

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4 p.

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  • "Submitted to: Nuclear Data for Science and Technology, Tsukuba, Japan, October 7-12, 2001"

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  • Report No.: LA-UR-01-5631
  • Grant Number: none
  • Office of Scientific & Technical Information Report Number: 975802
  • Archival Resource Key: ark:/67531/metadc930280

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  • January 1, 2001

Added to The UNT Digital Library

  • Nov. 13, 2016, 7:26 p.m.

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  • Dec. 9, 2016, 11:15 p.m.

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Mashnik, S. G. (Stepan G.); Chadwick, M. B. (Mark B.); Prokofiev, A. (Alexander); Olsson, N. (Nils) & Waters, L. S. (Laurie S.). DEVELOPMENT AND VALIDATION OF THE 7LI(P,N) NUCLEAR DATA LIBRARY AND ITS APPLICATION IN MONITORING OF INTERMEDIATE ENERGY NEUTRONS, article, January 1, 2001; United States. (digital.library.unt.edu/ark:/67531/metadc930280/: accessed November 16, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.