COMSOL models for indirect X-ray imaging

Hi
Is anyone aware of COMSOL models that deal with indirect X-ray imaging (i.e. scintillator/phosphor materials that
convert X-rays into visible light, e.g. CsI, GADOX..)?

I’ve been searching this week, but all I’ve found are simulations of direct imaging methods (i.e. conversion of X-ray photons to electrons, e.g. CdTe, ZnSe,…)

any comments will be gratefully recieved

Paul