Geant4 Simulation :MCP PET

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Presentation transcript:

Geant4 Simulation :MCP PET Air Gap 0.001’’ 2’’ Scintillator ( LSO) Glass( Borosilicate) 0.060’’ PhotocathodeI(Carbon) 0.002’’ Space(Vacuum) 0.040’’ MCP(Alumina) 0.200’’ Space(Vacumm) 0.040’’ Scintillator MCP Assembly Trans-Line(Gold) 0.035mm 10mm Isolator(Alumina) 0.400mm Ground(Copper) 0.025mm 9.15mm

Simulation Setup 5l.0mm(2’’) 5llkeV gamma ( to the center) 28.3mm

Simulation Setup Surfaces Scintillator (Side) Scintillator Black Teflon Wrapping PMT Glass( Side) Air Gap Index of Refraction : 1.0 Scintillator 51 x 51 x 10mm3 continuous LSO Decay Time : 40ns Light Yield : 26,000/MeV Index of Refraction : 1.82 Absorption Length : 20cm PMT Glass Borosilicate Glass Index of Refraction : 1.5 Scintillator MCP

# of optical photon at photocathode Black/Black/Air Gap Teflon/Teflon/ no Air Gap Scintillator(Side) Glass(Side) Air Gap(0.001’’) # of photon Black Yes 460 Teflon 665 800 No 1440

Light spread mm mm Black / w/ Air Gap Teflon Wrapping/ w/o Air Gap