Author:
Dijulio Douglas D.,Marquez Damian Jose Ignacio,Bernasconi Marco,Campi Davide,Gorini Giuseppe,Kittelmann Thomas,Klinkby Esben,Muhrer Gunter,Ramic Kemal,Rizzi Nicola,Santoro Valentina
Abstract
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.
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