Performance of Large Area 1D CRL Position Sensitive Silicon Photomultiplier Array

The performance of 4 × 4 array of one-dimensional position sensitive SiPM, intrinsic continuous Cap Resistive Layer Silicon Photomultipliers, with each element in size of 6.14 × 6.14 mm 2 , and total area of 24.6 × 24.6 mm 2 is reported in this paper. By using a specular anode-cathode signal multiplexing configuration, the number of readout channels is greatly reduced from 32 to 4 while retaining adequate high space and time resolution simultaneously. Under condition of a mean photoelectron number around 130 and the reverse bias voltage of 32 V, the position measurement error was 54.8 ± 38.3 μm, which accounted for 0.2% of the length of the CRL SiPM array. The position resolution was 392.9 ± 58.3 μm, and the time resolution was 205.3 ± 22.3 ps. A 10 × 10 LYSO array, with each element of 0.52 × 0.52 × 20 mm 3 , was clearly resolved in 1D by utilizing the natural radioactive radiation of lutetium element.