|Message: Re: Killing a track at a specific point of it's trajectory||Not Logged In (login)|
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PreUserTrackingAction is called BEFORE a track is actually 'stepped through the simulation'. Your code kills only (new) secondary tracks which happen to be created by some interaction/process between the coordinates you defined and is not in "tag_iron_plate_log". You code doesn't kill any primary tracks or tracks that started elsewhere.
For code in UserSteppingAction you should use:
G4StepPoint * thePostPoint = theStep->GetPostStepPoint(); G4VPhysicalVolume * thePostPV = thePostPoint->GetPhysicalVolume(); G4String thePostPVname = thePostPV->GetName();
etc. see example/novice/N04
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