56Fe capture cross section experiments at the RPI LINAC Center
1 Rensselaer Polytechnic Institute, Gaerttner LINAC Center, 110 8th Street, Troy, NY 12180, USA
2 Bechtel Marine Propulsion Corp., Knolls Atomic Power Laboratory, PO Box 1072 Schenectady, NY 12301-1072, USA
Published online: 13 September 2017
A new array of C6D6 detectors installed at the RPI LINAC Center has enabled the capability to measure neutron capture cross sections above the 847 keV inelastic scattering threshold of 56Fe through the use of digital post-processing filters and pulse-integral discriminators, without sacrificing the statistical quality of data at lower incident neutron energies where such filtering is unnecessary. The C6D6 detectors were used to perform time-of-flight capture cross section measurements on a sample 99.87% enriched iron-56. The total-energy method, combined with the pulse height weighting technique, were then applied to the raw data to determine the energy-dependent capture yield. Above the inelastic threshold, the data were analyzed with a pulse-integral filter to reveal the capture signal, extending the the full data set to 2 MeV.
© The Authors, published by EDP Sciences, 2017
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