Figure 9.
25mm thick crystal: LRF of the row-summed channel near the PMT center (centered at x = 3.1mm) at three depths: z = 5, 12, 20mm. The unslotted crystal was scanned at incremental y positions across the center of the crystal face from edge-to-edge (y= −24mm to y = 24mm). The gammas were incident on the crystal side to control the DOI.