[Gate-users] Problem with detection of optical photons

Vesna Cuplov vesna.cuplov at gmail.com
Tue Dec 2 13:47:45 CET 2014 

Dear Nuray,

I just tried your macro using LSO instead of Scinti-detector-C10H11 and it
worked.
I see the scintillation photons.

vesna



On Tue, Dec 2, 2014 at 12:33 PM, Nuray Yavuzkanat <ny535 at york.ac.uk> wrote:

> Dear Gate users,
> I am simulating an OpticalSystem in Gate6.2 for obtaining number of
> detected photon on scintillator volume. I changed many parameters such as;
> scintillation material which has already defined in Materials.xml file,
> source etc. but nothing change in Root output file. I can't see any photon
> produced by plastic scintillator, no detection of photon. Also I simulated
> OpticalSystem examples and still I can't see any photon detected.  Can
> anyone help me in advance ? Thank you .
> Below is my macro.
> Best Regards
> Nuray
>
>
> #=====================================================
> # VISUALISATION
> #=====================================================
> /vis/open OGLSQt
> /vis/viewer/set/viewpointThetaPhi  30 60
> /vis/viewer/zoom                4
> #/vis/viewer/set/style surface
> /vis/drawVolume
> /vis/scene/add/trajectories
> /vis/scene/add/hits
> /tracking/storeTrajectory 1
> /vis/scene/endOfEventAction accumulate 100
> /vis/viewer/update
> /gate/geometry/setMaterialDatabase GateMaterials.db
>
> #=========================================================
> #     W O R L D
> #=========================================================
> /gate/world/geometry/setXLength      10 cm
> /gate/world/geometry/setYLength      10 cm
> /gate/world/geometry/setZLength      10 cm
> /gate/world/setMaterial Air
>
> #=========================================================
> #    G E O M E T R Y
> #=========================================================
>
> # === optical system ===
> /gate/world/daughters/name                      OpticalSystem
> /gate/world/daughters/insert                    box
> /gate/OpticalSystem/geometry/setXLength         10. mm
> /gate/OpticalSystem/geometry/setYLength         7.0 mm
> /gate/OpticalSystem/geometry/setZLength         7.0 mm
> /gate/OpticalSystem/placement/setTranslation    0 0 0 mm
> /gate/OpticalSystem/setMaterial                 Air
> /gate/OpticalSystem/vis/setColor                white
> /gate/OpticalSystem/vis/forceWireframe
> /gate/OpticalSystem/vis/setVisible               1
>
> # === crystal  ===
> /gate/OpticalSystem/daughters/name              scintillator
> /gate/OpticalSystem/daughters/insert            box
> /gate/scintillator/geometry/setXLength               3 mm
> /gate/scintillator/geometry/setYLength               7 mm
> /gate/scintillator/geometry/setZLength               7 mm
> /gate/scintillator/placement/setTranslation          -1.5 0 0 mm
> /gate/scintillator/setMaterial                      Scinti-detector-C10H11
> /gate/scintillator/vis/setColor                      gray
> /gate/scintillator/vis/forceSolid
> /gate/scintillator/attachCrystalSD
>
> # ===  electronic board ===
> /gate/OpticalSystem/daughters/name              Electronics
> /gate/OpticalSystem/daughters/insert            box
> /gate/Electronics/geometry/setXLength           2  mm
> /gate/Electronics/geometry/setYLength           7  mm
> /gate/Electronics/geometry/setZLength           7 mm
> /gate/Electronics/setMaterial                   Air
> /gate/Electronics/placement/setTranslation      -4 0 0 mm
> /gate/Electronics/vis/setColor                  blue
> /gate/Electronics/vis/forceSolid
> /gate/systems/OpticalSystem/crystal/attach      scintillator
> # ===surface=====
> /gate/scintillator/surfaces/name                            Detection1
> /gate/scintillator/surfaces/insert                          Electronics
> /gate/scintillator/surfaces/Detection1/setSurface           perfect_apd
>
> #/gate/Electronics/surfaces/name                      Detection2
> #/gate/Electronics/surfaces/insert                    scintillator
> #/gate/Electronics/surfaces/Detection2/setSurface     perfect_apd
>
> #=========================================================
> #   P H Y S I C S
> #=========================================================
>
> /gate/physics/addProcess  PhotoElectric
> /gate/physics/processes/PhotoElectric/setModel  PenelopeModel
> /gate/physics/addProcess  Compton
> /gate/physics/processes/Compton/setModel  PenelopeModel
> /gate/physics/addProcess  RayleighScattering
> /gate/physics/processes/RayleighScattering/setModel  PenelopeModel
> /gate/physics/addProcess  ElectronIonisation
> /gate/physics/processes/ElectronIonisation/setModel  StandardModel e-
> /gate/physics/processes/ElectronIonisation/setModel  StandardModel e+
> /gate/physics/addProcess  OpticalAbsorption
> /gate/physics/addProcess   PositronAnnihilation
> /gate/physics/addProcess  Scintillation
> /gate/physics/addProcess  OpticalBoundary
> /gate/physics/addProcess  OpticalRayleigh
> /gate/physics/addProcess  RadioactiveDecay
> /gate/physics/processList Enabled
> /gate/physics/processList  Initialized
>
> # I N I T I A L I Z E
> /gate/run/initialize
>
> #=====================================================
> # DIGITIZER
> #=====================================================
> /gate/digitizer/Singles/insert opticaladder
> /gate/digitizer/Singles/insert readout
> /gate/digitizer/Singles/readout/setDepth 1
> #=====================================================
> # SOURCE
> #=====================================================
> /gate/source/addSource   PETsource
> /gate/source/PETsource/gps/particle  e+
> /gate/source/PETsource/gps/energytype  Fluor18
> /gate/source/PETsource/setActivity                      100 becquerel
> /gate/source/PETsource/gps/angtype                      iso
> /gate/source/PETsource/gps/type Volume
> /gate/source/PETsource/gps/shape  Cylinder
> /gate/source/PETsource/gps/radius          0.3 mm
> /gate/source/PETsource/gps/halfz      7 mm
> /gate/source/PETsource/setForcedHalfLife  6586 s
> /gate/source/PETsource/gps/direction              -10. 0. 0.
> /gate/source/PETsource/gps/centre                4. 0. 0. mm
> /gate/source/PETsource/gps/angtype iso
> /gate/source/PETsource/visualize 2000 red 10
> /gate/source/list
> #=====================================================
> #  D A T A   O U T P U T
> #=====================================================
> /gate/output/root/enable
> /gate/output/root/setFileName             OutputTest
> /gate/output/root/setRootHitFlag          1
> /gate/output/root/setRootSinglesFlag      1
> /gate/output/root/setRootOpticalFlag      1
> /gate/output/root/setRootRecordFlag   0
> /gate/output/root/setSaveRndmFlag         0
> /gate/output/root/setRootNtupleFlag       1
> /gate/output/analysis/disable
> /gate/output/fastanalysis/enable
>
> #=====================================================
> #   M E A S U R E M E N T   S E T T I N G S
> #=====================================================
>
> /gate/application/setTimeSlice   4 s
> /gate/application/setTimeStart   0 s
> /gate/application/setTimeStop    4 s
> #/gate/output/allowNoOutput
> /gate/application/startDAQ
>
> _______________________________________________
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>
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