1. Geant4 Simulation :MCP PET
Air Gap ’’
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

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

3. 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

4. # 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

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