Title: Fast neutron inelastic scattering from 7Li
Authors: BEYER R.FROTSCHER AXELJUNGHANS A. R.NYMAN MARKUSPLOMPEN ARJANGRIEGER MARCELKÖGLER T.LUDWIG FREINICKE S.SCHULZ S.SCHWENGNER R.TRINH T.URLASS S.WAGNER A.
Citation: EPJ Web of Conferences vol. 239 p. 01029
Publisher: EDP Sciences
Publication Year: 2020
JRC N°: JRC117650
ISSN: 2100 014X (online)
URI: https://publications.jrc.ec.europa.eu/repository/handle/JRC117650
DOI: 10.1051/epjconf/202023901029
Type: Articles in periodicals and books
Abstract: The inelastic scattering of fast neutrons from 7Li nuclei was investigated at the nELBE neutron time-of-flight facility. The photon production cross section of 478 keV gamma-rays from the first excited state of 7Li was determined by irradiating a disc of LiF with neutrons of energies ranging from 100 keV to about 10 MeV. The target position was surrounded by a setup of 7 LaBr3 scintillation detectors and 7 high-purity germanium detectors to detect the de-excitation gamma-rays. A 235U fission chamber was used to determine the incoming neutron flux. The number of detected photons was corrected for the detection efficiency, multiple scattering and the time-of-flight dependent data acquisition dead time. The preliminary results show reasonable agreement with previous measurements but clearly deviate from recent data taken at the GELINA facility.
JRC Directorate:Nuclear Safety and Security

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