|Message: Re: G4VPrimitive Scorer-Surface Current||Not Logged In (login)|
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HI, The G4PSPassageCellCurrent counts the number of particles that pass the sensitive volume, i.e. it does not count the particles stopped inside the sensitive volume. The scoring is defined by using the volume so that the particles come from any directions to the volume may be counted. The result shows just number of tracks. There is no normalization by the volume inside G4PSPassageCellCurrent. The G4PSFlatSurfaceCurrent counts particles at the -Z surface of G4Box geometry. If you specify the option “fCurrentIn” then it counts only particles go to +Z direction. If you specify “fCurrentInOut” then both directions are taken into account. The result shows the number of particles normalized by the area at –Z surface, i.e counts/mm2, or counts/cm2 for example. If you do not want to divide the current by area, please specify scorer2->DivideByArea(false). Ideally, the counts of G4PSFlatSurfaceCurrent (with DivideByArea(false)) and G4PSPassageCellCurrent should become closer if you defines very thin Box geometry for the sensitive volume. The number you showed as output of the simulation depends on your geometry and the condition of beam. I cannot give comments about it. Tsuaksa Aso
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