Fig. 1From: Monte Carlo simulation of digital photon counting PETGATE geometry model of the Philips DPC-PET. The four depth levels components are illustrated on the right of the image. Eighteen modules are repeated in one ring. Each module contains 4 tangentially ×5 axially arranged stacks. Each stack is subdivided into 4×4 dice and each die contains 2×2 LYSO crystals. The system is composed of a total of 23 040 crystalsBack to article page