High-resolution neutron-induced [gamma]-ray production cross sections for oxygen and beryllium for neutron energies from 4 to 200 MeV.

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Measurements of discrete gamma-ray spectra from neutron-induced reactions on a Be0 sample have been performed using the broad-spectrum neutron spallation source of the WNR facility at LANSCE. Incident neutron energies were determined by the time-of-flight technique. Two high-purity Ge detectors were used to detect gamma rays in the energy range from 0.150 to 9.0 MeV. Spectra were measured at seven angles. Absolute gamma-ray production cross sections were delermined from the measured neutron fluence and detector efficiencies. A new evaluation of the reaction cross sections has been performed based on this data. GNASH model calculations were performed for 20 < E, ... continued below

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4 p.

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Nelson, R. O. (Ronald O.); Michaudon, A. F. (André F.); Chadwick, M. B. (Mark B.) & Young, P. G. (Phillip Gaffney), January 1, 2001.

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Measurements of discrete gamma-ray spectra from neutron-induced reactions on a Be0 sample have been performed using the broad-spectrum neutron spallation source of the WNR facility at LANSCE. Incident neutron energies were determined by the time-of-flight technique. Two high-purity Ge detectors were used to detect gamma rays in the energy range from 0.150 to 9.0 MeV. Spectra were measured at seven angles. Absolute gamma-ray production cross sections were delermined from the measured neutron fluence and detector efficiencies. A new evaluation of the reaction cross sections has been performed based on this data. GNASH model calculations were performed for 20 < E, < 150 MeV, and are compared with the data. KEY WOlWS: neutron-induced reactions, gamma-ray cross section, measurement, evaluation, oxygen, beryllium, germanium detector

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4 p.

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

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  • Report No.: LA-UR-01-4942
  • Grant Number: none
  • Office of Scientific & Technical Information Report Number: 975724
  • Archival Resource Key: ark:/67531/metadc932807

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  • January 1, 2001

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  • Nov. 13, 2016, 7:26 p.m.

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  • Dec. 12, 2016, 6:33 p.m.

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Nelson, R. O. (Ronald O.); Michaudon, A. F. (André F.); Chadwick, M. B. (Mark B.) & Young, P. G. (Phillip Gaffney),. High-resolution neutron-induced [gamma]-ray production cross sections for oxygen and beryllium for neutron energies from 4 to 200 MeV., article, January 1, 2001; United States. (digital.library.unt.edu/ark:/67531/metadc932807/: accessed October 22, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.