Special Nuclear Physics Seminar: Justin Warren, Ohio University


Location: 124 Nieuwland Science Hall, NSL Conference Room

Active target measurement of 35Cl(n, p) and 35Cl(n, α) cross sections using CLYC detectors

Justin Warren
Ohio University

Recent measurements of neutron induced reactions on 35Cl have shown deviations from the ENDF/B-VIII.0 evaluation. Neutron reaction data for 35Cl is an important input in the design, simulation, and operation for molten chloride fast reactors. CLYC (Cs2LiYCl6:Ce) detectors are a class of cubic elpasolite inorganic crystal scintillators composed of ∼ 45% 35Cl by number density. No recent published measurements have covered the 100 keV to 600 keV energy range. We present new measurements of the 35Cl(n, p) and 35Cl(n, α) cross sections from 100 keV to 12 MeV made at the Edwards Accelerator Lab at Ohio University utilizing CLYC detectors as active targets. Measurements were made at the Beam Swinger and Time-of-Flight Tunnel facility. Multiple experiments used 9Be(p, n), 9Be(d, n), and D(d, n) sources to provide overlapping coverage of the energy range. Preliminary results from the experimental campaign show significant deviation from the ENDF/B-VIII.0 evaluation and suggest a new evaluation may be necessary.

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