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Idea Re: identifying gammas and neutrons 

Keywords: G4VUserTrackInformation
Forum: Event and Track Management
Re: None identifying gammas and neutrons (Wellisch, J.P.)
Date: 30 Oct, 2002
From: Makoto Asai <Makoto Asai>

 G4Trajectory does not work for this case, since your sensitive
detector will not see a trajectory.

 G4Track has a pointer to G4VProcess, which inform you the process 
which generated the particular track. Once this track has an 
interaction and makes secondaries (grand-daughters with respect 
to the original track), you have no direct way to trace back from 
these secondaries to the original process. To distinguish energy 
deposition originated from a particular process from other energy 
deposition, an information of original process must be passed to 
all generation of concerned particles. G4VUserTrackInformation 
can be used for this purpose. 

 I would like to invite you to a tip page
  http://geant4.slac.stanford.edu/Tips/event/5.html
where you can find a sample code for this case.



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