|Message: Calculate deposit from child track with condition||Not Logged In (login)|
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I need to score dose deposit from all particles, which born from certain ancestor particle which had some condition. To be more precise, I need to explicitly calculate the deposit from secondary protons and electrons, which born from neutron with < 10 keV, and that neutrons are born somewhere inside my volumes (collimators) or moderated (filters), while particle source is 14 MeV neutrons.
With scoring part I'm pretty certain that I should score deposit in my SD for all particles which have some condition in my class inherited from G4UserTrackInformation. But I'm not sure how I can propagate the initial condition for secondary born neutrons as soon as neither TrackingAction::PreUserTrackingAction nor StackingAction::ClassifyNewTrack don't have access to parent track information (with ClassifyNewTrack I'll probably see some needed secondaries, but I'll still loose ones which born in cascade interactions).
I found some examples at old tips and tricks page http://geant4.slac.stanford.edu/Tips/event/3.html and http://geant4.slac.stanford.edu/Tips/event/6.html but I'm not sure how these examples are consistent with the latest Geant4 releases. Moreover the first example most likely to provide a great overhead for my case, and with second I'm not pretty sure of order call.
The way I see how to do it now is to implement my own G4VProcess which can put a flag in TrackInformation. But maybe there is a much simplier way following the Geant4 design philosophy or I forget some existing methods?
Thanks for any suggestions.
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