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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
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
ADC spectrum

Coincidence event

Module A( small crystal)

E resolution: 28.4% in FWHM

Module B( large crystal)

E resolution: 25.4% in FWHM


Plans
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.