Mutchler, Gordon S.2018-12-182018-12-181975Felder, Richard Douglas. "Calibration of a high energy neutron detector." (1975) Master’s Thesis, Rice University. <a href="https://hdl.handle.net/1911/104568">https://hdl.handle.net/1911/104568</a>.https://hdl.handle.net/1911/104568The detection efficiency of a large cylindrical block of NE-12 scintillator was measured for neutrons with energies from 2 to 5 MeV. The experimental technique employed quasi-free p-n and p-p scattering from p-d breakup at 8 MeV and relied on the spectator model description of these processes. The measured efficiencies are 15% to 4% larger than the best calculated efficiencies and show an increasing deviation with neutron energy. The observed discrepancies are explained in terms of nuclear in-scattering and possible deficiencies in the spectator model. Several changes in the experimental apparatus and technique are suggested to improve the efficiency measurement.112 ppengCopyright is held by the author, unless otherwise indicated. Permission to reuse, publish, or reproduce the work beyond the bounds of fair use or other exemptions to copyright law must be obtained from the copyright holder.ThesisRICE2203reformatted digitalThesis Phys. 1975 Felder