EPJ Web Conf.
Volume 146, 2017ND 2016: International Conference on Nuclear Data for Science and Technology
|Number of page(s)||4|
|Section||Nuclear Reaction Measurements|
|Published online||13 September 2017|
Angular distribution measurement of gamma rays from inelastic neutron scattering on 56Fe at the nELBE time-of-flight facility
1 Helmholtz-Zentrum Dresden - Rossendorf, Postfach 510 119, 01314 Dresden, Germany
2 Technische Universität Dresden, Postfach 100 920, 01076 Dresden, Germany
a e-mail: firstname.lastname@example.org; present address: School of Physics, Astronomy, University of Edinburgh, Edinburgh, UK
b Present address: Czech Technical University in Prague, IEAP, Prague, Czech Republic
c e-mail: email@example.com
d Present address: Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
e Present address: Institute for Nuclear Research (MTA ATOMKI), PO Box 51, 4001 Debrecen, Hungary
Published online: 13 September 2017
Inelastic neutron scattering from 56Fe was studied at the nELBE time-of-flight facility. The incoming neutron energy ranges from 100 keV to 10 MeV in the fast neutron spectrum, where high precision nuclear data are needed. A detector setup has been installed to investigate the γ-ray angular distributions. It contains five HPGe and five LaBr3 detectors positioned at 30, 55, 90, 125 and 150 degrees relative to the beam axis. The intrinsic and the neutron induced background from the setup was subtracted by cyclical measurements with and without the natural Fe-target. Corrections for extended source efficiency and gamma-self-absorption, inside the target, were done using GEANT4 simulations. The angular distributions measured with the HPGe detectors are compared with earlier data. High neutron energy resolution up to a few keV was obtained with the LaBr3 detectors due to their much better time resolution.
© The Authors, published by EDP Sciences, 2017
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