[Gate-users] Problem with 10^10 primaries send

[Dimitrios Thanasas]

Dear Sarah,

You could try to give an activity to your source, (e.g. 1 GBq - without
half life) and then to run the simulation for a certain time (e.g. 10s). I
think that this wiil work (you may need a statactor to know exactly the
number of the emitted particles).
If you try to split the simulation, you may need to change the engine seed
in order not to have the same results in each simulation.

Regards,
Dimitris

> Dear Gate users,
>
> I have the following model : 1 cell inside of which there are 12 clusters
> of 8000 nanoparticles each.
> My source is composed of a gamma beam of 5 keV.
> My simulation works fine up to 10^9 photons send. But with 10^10 primaries
> nothing happens anymore (there is no error message).
> Does someone have an idea what the problem might be ?
>
> Thank you very much for your help,
> Regards,
> Sarah Blind
>
> world.mac
>
>
>
>
> /gate/world/geometry/setXLength 30 um
> /gate/world/geometry/setYLength 30 um
> /gate/world/geometry/setZLength 30 um
> /gate/world/setMaterial Air
>
> /gate/world/daughters/name cell
> /gate/world/daughters/insert sphere
> /gate/cell/geometry/setRmin 0.0 mm
> /gate/cell/geometry/setRmax 10 um
> /gate/cell/placement/setTranslation 0 0 0 um
> /gate/cell/setMaterial G4_WATER
> /gate/cell/vis/setVisible 1
> /gate/cell/vis/setColor blue
> /gate/cell/vis/forceSolid false
>
> /gate/cell/daughters/name cluster
> /gate/cell/daughters/insert sphere
> /gate/cluster/geometry/setRmin 0.0 mm
> /gate/cluster/geometry/setRmax 500 nm
> /gate/cluster/placement/setTranslation 0 0 0 um
> /gate/cluster/setMaterial G4_WATER
> /gate/cluster/vis/setVisible 1
> /gate/cluster/vis/setColor yellow
> /gate/cluster/vis/forceSolid false
>
> /gate/cluster/daughters/name NP
> /gate/cluster/daughters/insert sphere
> /gate/NP/geometry/setRmin 0 mm
> /gate/NP/geometry/setRmax 2 nm
> /gate/NP/placement/setTranslation 0 0 0 mm
> /gate/NP/setMaterial Bismuth
> /gate/NP/vis/setVisible 1
> /gate/NP/vis/setColor red
> /gate/NP/vis/forceSolid true
>
>
> /gate/NP/repeaters/insert cubicArray
> /gate/NP/cubicArray/setRepeatNumberX 20
> /gate/NP/cubicArray/setRepeatNumberY 20
> /gate/NP/cubicArray/setRepeatNumberZ 20
> /gate/NP/cubicArray/setRepeatVector 5 5 5 nm
>
> /gate/cluster/repeaters/insert cubicArray
> /gate/cluster/cubicArray/setRepeatNumberX 3
> /gate/cluster/cubicArray/setRepeatNumberY 2
> /gate/cluster/cubicArray/setRepeatNumberZ 2
> /gate/cluster/cubicArray/setRepeatVector 5 5 5 um
>
>
>
>
> physics.mac
>
> BQ_BEGIN
>
>
> /gate/physics/addPhysicsList QGSP_BERT_EMV
>
> /gate/physics/Gamma/SetCutInRegion world 50 nm
> /gate/physics/Electron/SetCutInRegion world 50 nm
>
> /gate/physics/Gamma/SetCutInRegion cell 20 nm
> /gate/physics/Electron/SetCutInRegion cell 20 nm
>
> /gate/physics/Gamma/SetCutInRegion cluster 5 nm
> /gate/physics/Electron/SetCutInRegion cluster 5 nm
>
> /gate/physics/Gamma/SetCutInRegion NP 0.5 nm
> /gate/physics/Electron/SetCutInRegion NP 0.5 nm
>
> /gate/random/setEngineName MersenneTwister
>
> /gate/physics/addAtomDeexcitation
>
> /gate/physics/addProcess PhotoElectric gamma
> /gate/physics/processes/PhotoElectric/setModel LivermoreModel
> /gate/physics/processes/PhotoElectric/setAugerElectron true
> /gate/physics/processes/PhotoElectric/setDeltaRayCut 10 eV
> /gate/physics/processes/PhotoElectric/setXRayCut 10 eV
> /gate/physics/processes/PhotoElectric/setStepFunction e- 0.2 0.1 nm
>
> /gate/physics/addProcess Compton gamma
> /gate/physics/processes/Compton/setModel LivermoreModel
> /gate/physics/processes/Compton/setStepFunction e- 0.2 0.1 nm
>
> /gate/physics/addProcess RayleighScattering
> /gate/physics/processes/RayleighScattering/setModel LivermoreModel
>
> /gate/physics/addProcess GammaConversion
> /gate/physics/processes/GammaConversion/setModel LivermoreModel
>
> /gate/physics/addProcess ElectronIonisation
> /gate/physics/processes/ElectronIonisation/setModel LivermoreModel e-
> /gate/physics/processes/ElectronIonisation/setModel PenelopeModel e+
> /gate/physics/processes/ElectronIonisation/setStepFunction e- 0.2 0.1 nm
>
> /gate/physics/addProcess Bremsstrahlung e-
> /gate/physics/addProcess Bremsstrahlung e+
> /gate/physics/processes/Bremsstrahlung/setModel LivermoreModel e-
> /gate/physics/processes/Bremsstrahlung/setModel PenelopeModel e+
>
> /gate/physics/addProcess eMultipleScattering e-
> /gate/physics/addProcess eMultipleScattering e+
> /gate/physics/processes/eMultipleScattering/setModel UrbanModel e-
> /gate/physics/processes/eMultipleScattering/setModel UrbanModel e+
>
> /gate/physics/SetMinKineticEnergyInRegion world 1 eV
> /gate/physics/SetMinKineticEnergyInRegion cell 1 eV
> /gate/physics/ActivateSpecialCuts gamma
>
> BQ_END
>
>
> source.mac
>
> BQ_BEGIN
>
>
> /gate/source/addSource mybeam gps
> /gate/source/mybeam/gps/particle gamma
> /gate/source/mybeam/gps/pos/type Beam
> /gate/source/mybeam/gps/ene/mono 5 keV
> /gate/source/mybeam/gps/ene/type Gauss
> /gate/source/mybeam/gps/ene/sigma 1.0 keV
> /gate/source/mybeam/gps/direction 0 0 -1
>
> /gate/source/mybeam/gps/position 0 0 15 um
> /gate/source/mybeam/gps/pos/type Volume
> /gate/source/mybeam/gps/pos/shape Cylinder
> /gate/source/mybeam/gps/pos/inner_radius 0 mm
> /gate/source/mybeam/gps/pos/radius 10 um
> /gate/source/mybeam/gps/pos/halfz 0.01 um
> /gate/source/mybeam/gps/ang/type beam2d
>
>
>
>
>
> BQ_END
>
>
>
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