Fig. 2: Working principle of the energy-resolving multicolor scintillator.
From: End-to-end design of multicolor scintillators for enhanced energy resolution in X-ray imaging
a Linear attenuation coefficients of the different scintillators in the multilayer stack (ZnSe:Te, Gadox:Tb, NaI:Tl). b Absorption per unit length along the X-ray propagation path for different X-ray energies. The absorption of each energy bin is confined as much as possible to the target layer for each bin (low energies to ZnSe:Te, intermediate energies to NaI:Tl, high energies to Gadox:Tb). c Absorbed energy distributions at the top of each layer
