Evaluated cross section libraries and kerma factors for neutrons up to 100 MeV on {sup 16}O and {sup 14}N

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Description

We present evaluations of the interaction of 20 to 100 MeV neutrons with oxygen and nitrogen nuclei, which follows on from our previous work on carbon. Our aim is to accurately represent integrated cross sections, inclusive emission spectra, and kerma factors, in a data library which can be used in radiation transport calculations. We apply the FKK-GNASH nuclear model code, which includes Hauser-Feshbach, preequilibrium, and direct reaction mechanisms, and use experimental measurements to optimize the calculations. We determine total, elastic, and nonelastic cross sections, angle-energy correlated emission spectra, for light ejectiles with A{<=}4 and gamma-rays, and average energy depositions. Our ... continued below

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67 p.

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Chadwick, M.B. & Young, P.G. July 1, 1995.

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Description

We present evaluations of the interaction of 20 to 100 MeV neutrons with oxygen and nitrogen nuclei, which follows on from our previous work on carbon. Our aim is to accurately represent integrated cross sections, inclusive emission spectra, and kerma factors, in a data library which can be used in radiation transport calculations. We apply the FKK-GNASH nuclear model code, which includes Hauser-Feshbach, preequilibrium, and direct reaction mechanisms, and use experimental measurements to optimize the calculations. We determine total, elastic, and nonelastic cross sections, angle-energy correlated emission spectra, for light ejectiles with A{<=}4 and gamma-rays, and average energy depositions. Our results for charged-particle emission spectra agree well with the measurements of Subramanian et al.. We compare kerma factors derived from our evaluated cross sections with experimental data, providing an integral benchmarking of our work. The evaluated data libraries are available as electronic files.

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67 p.

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INIS; OSTI as DE96005791

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  • Other Information: PBD: Jul 1995

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  • Other: DE96005791
  • Report No.: UCRL-ID--122436
  • Grant Number: W-7405-ENG-48;W-7405-ENG-36
  • DOI: 10.2172/192516 | External Link
  • Office of Scientific & Technical Information Report Number: 192516
  • Archival Resource Key: ark:/67531/metadc669332

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  • July 1, 1995

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  • June 29, 2015, 9:42 p.m.

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  • May 31, 2016, 6:22 p.m.

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Chadwick, M.B. & Young, P.G. Evaluated cross section libraries and kerma factors for neutrons up to 100 MeV on {sup 16}O and {sup 14}N, report, July 1, 1995; California. (digital.library.unt.edu/ark:/67531/metadc669332/: accessed October 21, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.