3 October 2016 An analysis of side readouts of monolithic scintillation crystals
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Abstract
We have explored a method of using the side surfaces of a thin monolithic scintillation crystal for reading out scintillation photons. A Monte-Carlo simulation was carried out for an LYSO crystal of 50:8mmx50:8mmx3mm with 5 silicon photomultipliers attached on each of the four side surfaces. With 511 keV gamma-rays, X-Y spatial resolution of 2:10mm was predicted with an energy resolution of 9:0%. We also explored adding optical barriers to improve the X-Y spatial resolution, and an X-Y spatial resolution of 786um was predicted with an energy resolution of 9:2%. Multiple layers can be stacked together and readout channels can be combined. Depth-of- interaction information (DOI) can be directly read out. This method provides an attractive detector module design for positron emission tomography (PET).
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Xin Li, Xin Li, Lars R. Furenlid, Lars R. Furenlid, "An analysis of side readouts of monolithic scintillation crystals", Proc. SPIE 9969, Radiation Detectors: Systems and Applications XVII, 996908 (3 October 2016); doi: 10.1117/12.2243100; https://doi.org/10.1117/12.2243100
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