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. Author manuscript; available in PMC: 2021 Jul 20.
Published in final edited form as: Biomed Phys Eng Express. 2018 Nov 30;5(1):015018. doi: 10.1088/2057-1976/aaef03

Figure 3.

Figure 3.

Schematic for simulating the Compton PET module in GATE. A point source emits 511 keV gamma rays perpendicularly (a) and isotropically (b) towards the front face of the 4-layer LYSO crystal module. The dimension of each crystal layer was 13.24×13.24×3.16 mm3, and the pitch along the DOI direction was 3.36 mm (ESR thickness was 0.2 mm). The layers are numbered 1 to 4 according to their distance from the radiation source. The scintillation light was collected by the 64 photodetectors on the four sides.