Opening this sub-issue to collect ideas and progress concerning the planned NCrystalFilter component.
The idea was: Add NCrystalFilter component (name to be finalised), which takes an NCrystal-cfgstr for an isotropic material and caches the cross section curve during initialisation. During TRACE it then simply attenuates the beam accordingly. This provides a way to use NCrystal x-sect curves in a context where one does not care about the scattered neutrons, and where multiple scattering is unimportant. We could even consider using the minimc to make it possible to use multiple scattering effects or more flexible definitions of what is scattered (i.e. only attenuate anything scattering more than 0.1degree). Notably this would work on GPU. This would for instance be useful for Al-windows or Be-filters.
Opening this sub-issue to collect ideas and progress concerning the planned NCrystalFilter component.
The idea was: Add NCrystalFilter component (name to be finalised), which takes an NCrystal-cfgstr for an isotropic material and caches the cross section curve during initialisation. During TRACE it then simply attenuates the beam accordingly. This provides a way to use NCrystal x-sect curves in a context where one does not care about the scattered neutrons, and where multiple scattering is unimportant. We could even consider using the minimc to make it possible to use multiple scattering effects or more flexible definitions of what is scattered (i.e. only attenuate anything scattering more than 0.1degree). Notably this would work on GPU. This would for instance be useful for Al-windows or Be-filters.