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Test Setup

Test Setup. SiPM Hamamatsu S10362-11-25C Pixel size( 25um) Bias Voltage : 70.9, 71.2 LYSO Crystal 1.0x1.0x10.0mm3 2.0x2.0x15.0mm3 SiPM/LYSO glued by epoxy Na22 source for 511KeV gamma Lecroy ADC 2249A. Bias V. Signal. SiPM/LYSO. Placed inside a light shielded box. ADC spectrum.

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Test Setup

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  1. Test Setup • SiPM • Hamamatsu S10362-11-25C • Pixel size( 25um) • Bias Voltage : 70.9, 71.2 • LYSO Crystal • 1.0x1.0x10.0mm3 • 2.0x2.0x15.0mm3 • SiPM/LYSO glued by epoxy • Na22 source for 511KeV gamma • Lecroy ADC 2249A Bias V Signal SiPM/LYSO Placed inside a light shielded box

  2. ADC spectrum Coincidence event Module A( small crystal) E resolution: 28.4% in FWHM Module B( large crystal) E resolution: 25.4% in FWHM

  3. Plans • Measure coincidence timing resolution. • Simulate the set-up. • Optical processes inside crystal. • Optical properties of materials and surfaces. • Geant4 code is under development. • A part of design study.

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