EPJ Web of Conf.
Volume 284, 202315th International Conference on Nuclear Data for Science and Technology (ND2022)
|Number of page(s)||3|
|Section||Thermal Neutron Scattering|
|Published online||26 May 2023|
Evaluation of Thermal Neutron Scattering Law and Cross Sections for Calcium Hydride
Department of Nuclear Engineering, North Carolina State University, Raleigh, NC 27695, USA
Published online: 26 May 2023
Presented here are the calculated thermal scattering law (TSL) and thermal neutron scattering cross sections for Calcium Hydride, hereafter referred to by its chemical symbol CaH2. The only other such data prior to this evaluation are thermal neutron scattering libraries in the JEFF database, which do not fully capture the scattering physics of the CaH2 system. The data in this evaluation are calculated from first principles; Density Functional Theory (DFT) is used to calculate the phonon density of states (DOS), which is the primary input required to derive the TSL. The TSL and cross sections have been evaluated for the three non-equivalent atom cites in the CaH2: Ca, H1, and H2. Each evaluation has been submitted to the NNDC for consideration in the next ENDF/B database release.
© The Authors, published by EDP Sciences, 2023
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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