Design and development of compact readou telectronics with silicon photomultiplier array for a compact imaging detector

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ZHANG Xiao-Hui, QI Yu-Jin and ZHAO Cui-Lan. Design and development of compact readou telectronics with silicon photomultiplier array for a compact imaging detector[J]. Chinese Physics C, 2012, 36(10): 973-978. doi: 10.1088/1674-1137/36/10/010
ZHANG Xiao-Hui, QI Yu-Jin and ZHAO Cui-Lan. Design and development of compact readou telectronics with silicon photomultiplier array for a compact imaging detector[J]. Chinese Physics C, 2012, 36(10): 973-978.  doi: 10.1088/1674-1137/36/10/010 shu
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Received: 2011-12-28
Revised: 1900-01-01
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Design and development of compact readou telectronics with silicon photomultiplier array for a compact imaging detector

    Corresponding author: QI Yu-Jin,

Abstract: This work aims at developing compact readout electronics for a compact imaging detector module with silicon photomultiplier (SPM) array. The detector module consists of a LYSO crystal array coupling with a SensL's 4×4 SPM array. A compact multiplexed readout based on a discretized positioning circuit (DPC) was developed to reduce the readout channels from 16 to 4 outputs. Different LYSO crystal arrays of 4×4, 8×8 and 12×12 with pixel sizes of 3.2, 1.6 and 1.0 mm respectively, have been tested with the compact readout board using a 137Cs source. The initial results show that the compact imaging detector module with the compact multiplexed readout could clearly resolve 1 mm× 1 mm× 10 mm LYSO scintillation crystal array except those at the edges. The detector's intrinsic spatial resolution up to 1 mm can be achieved with the 3 mm×3 mm size SPMArray4 through light sharing and compact multiplexed readout. Our results indicate that this detector module is feasible for the development of high-resolution compact PET.

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