[Gate-users] ion source

[Abdul Fattah MOHAMAD HADI]

Hi Andrew:
I use gate_v6.0.p01, and I have had the same problem as you for the 
Scandium44 ion source. For resolving it I have added the 
RadioactiveDecay process to my physics macro:
/gate/physics/addProcess RadioactiveDecay

Regards
Abdul Fattah

Andrew Smith a écrit :
> Dear Gate users,
>
> I have a problem simulating ion sources (no hits detected). I tried to use
> both vGate and Gate that I've installed myself (latest versions).
> Sources like backtoback seem to work correctly, even though gate crashes
> when I am trying to use fastI124 (not sure if it is the same problem).
>
>  This is one of the ion source files that I tried.
>
> /gate/source/addSource ytt86
> /gate/source/ytt86/setActivity 500000000. becquerel
> /gate/source/ytt86/gps/particle ion
> /gate/source/ytt86/gps/ion 39 86 0 0
> /gate/source/ytt86/gps/energytype Mono
> /gate/source/ytt86/gps/monoenergy 0. MeV
> /gate/source/ytt86/gps/angtype iso
> /gate/source/ytt86/gps/number 1
> /gate/source/ytt86/gps/centre 0. 0. 0. cm
> /gate/source/ytt86/gps/type Volume
> /gate/source/ytt86/gps/shape Sphere
> /gate/source/ytt86/gps/radius 0.1 mm
>
>
>  I've checked that the path to Geant4's Radioactivedecay data files is
> correct. Is there anything else what could be wrong?
>
> Here is the typical output message from the gate:
>
> [
> [G4]
> [G4]
> *********************************************************************************************************
> [G4] * G4Track Information:   Particle = Y86[0.0],   Track ID = 1,   Parent
> ID = 0
> [G4]
> *********************************************************************************************************
> [G4]
> [G4] Step#    X(mm)    Y(mm)    Z(mm) KinE(MeV)  dE(MeV) StepLeng TrackLeng
>  NextVolume ProcName
> [G4]     0  -0.0553  -0.0236  -0.0487         0        0        0         0
>  world_phys initStep
> [G4]     1  -0.0553  -0.0236  -0.0487         0        0        0         0
>  world_phys User Limit
> [G4] Track (trackID 1, parentID 0) is processed with stopping code 2
> [G4] ### pop requested out of 0 stacked tracks.
> [G4] ### 0 waiting tracks are re-classified to
> [G4]      0 urgent tracks and 0 waiting tracks.
> [G4] NULL returned from G4StackManager.
> [G4] Terminate current event processing.
>
> -----------------------------------------------------------------------------------------------------
>
> Thank you in advance.
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>
>   

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