[Gate-users] Optical photons

[Nikta Zarif Yussefian]

Dear Gate-users, 

I want to use optical photons to track the particles path in the
crystals. As mentioned in manual, I set the GATE_USE_OPTICAL to ON and
to decrease the simulation time I reduce the number of crystals (I have
only 5 blocks of LSO crystals each block contains 64 crystals). I don't
have niether singles nor coincidences in my root file. I am using
version 7.2. I took 4 slices (slice duration = 1s ). Any ideas about
this issue will be highly appreciated. 

My code is as follows: 

#===============================
# P H Y S I C S 
#=============================== 

/gate/physics/addPhysicsList QGSP_BERT_EMV
/gate/physics/addPhysicsList emstandard 

/gate/physics/addProcess PhotoElectric gamma
/gate/physics/processes/PhotoElectric/setModel StandardModel 

/gate/physics/addProcess Compton gamma
/gate/physics/processes/Compton/setModel StandardModel 

/gate/physics/addProcess OpticalAbsorption 

#==============================
# S O U R C E
#==============================
/gate/source/addSource betta 
/gate/source/betta/gps/particle opticalphoton 
/gate/source/betta/gps/polarization 1 0 0 
/gate/source/betta/gps/energytype Fluor18 
/gate/source/betta/setForcedUnstableFlag true 
/gate/source/betta/setForcedHalfLife 6586 s 
/gate/source/betta/gps/energytype Mono 
/gate/source/betta/gps/monoenergy 511 keV 
/gate/source/betta/gps/type Volume 
/gate/source/betta/gps/shape Sphere 
/gate/source/betta/gps/radius 0.1 mm 
/gate/source/betta/gps/centre 0. 0. 0. cm 
/gate/source/betta/gps/angtype iso 
/gate/source/betta/setActivity 500 kilobecquerel 

#=====================================================
# D I G I T I Z E R: DETECTOR ELECTRONIC RESPONSE
#===================================================== 

/gate/digitizer/Singles/insert opticaladder
/gate/digitizer/Singles/insert readout 

#=====================================================
# C O I N C I D E N C E S O R T E R
#===================================================== 

/gate/digitizer/Coincidences/setInputName Singles
/gate/digitizer/Coincidences/setOffset 0. ns 
/gate/digitizer/Coincidences/setWindow 6 ns
/gate/digitizer/Coincidences/MultiplesPolicy killAll 

#=====================================================
# D A T A O U T P U T 
#=====================================================
/gate/output/root/enable 
/gate/output/root/setFileName optic2_l12_polorizedsource
/gate/output/root/setRootOpticalFlag 1
/gate/output/root/setRootHitFlag 1
/gate/output/root/setRootSinglesFlag 1 

/gate/output/fastanalysis/enable 
 
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