https://doi.org/10.1051/epjconf/202328417013
Thermal scattering libraries for cold and very-cold neutron reflector materials
1 European Spallation Source ESS ERIC, SE-221 00 Lund, Sweden
2 University of Milano-Bicocca, Milano, Italy
3 DTU Physics, Technical University of Denmark
* e-mail: douglas.dijulio@ess.eu
Published online: 26 May 2023
We present recent developments of improved modelling methods for simulating neutron transport in reflector materials of interest for neutron source applications. These include materials to be used as traditional reflectors around the neutron moderator, such as beryllium, and also novel materials, such as nanodiamond particles, to be used as a reflector for very-cold neutrons in the neutron beam extraction area of a neutron scattering instrument. Of particular interest is the inclusion of physical effects that are not modelled in standard thermal scattering libraries used for Monte-Carlo simulations, such as extinction in beryllium reflectors and effects of small-angle neutron scattering from nanodiamond particles.
© 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.
