EPJ Web of Conferences (Jan 2024)
Sample Worth Measurement of Calcium Hydride
Abstract
Sample reactivity measurements of CaH2 samples as the integral experiments were conducted in the Kinki University Reactor (UTR-KINKI). The sample reactivity worth was determined from a difference between two excess reactivities of the respective reactors with and without the sample. The reactivity worth measurements were repeated for 21.20 g, 41.00 g, 72.78 g and 164.4 g of CaH2 sample. Furthermore, the sample reactivity worth was calculated using the continuous energy Monte Carlo codes MVP3.0 with the nuclear library JEFF-3.1, where each cross section of H and Ca constituting a molecule of CaH2 was taken into the thermal neutron scattering law. The ratios of calculated to experimental values (C/E) were 1.119±0.587, 0.806±0.305, 0.874±0.165 and 0.894±0.099 for 21.29 g, 41.00 g, 78.72 g and 164.4 g of the samples, respectively.