|Message: Re: retrieve the kinetic energy of parent particles||Not Logged In (login)|
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On Wed, 12 Jul 2017 08:00:56 GMT, andrea gelmi wrote:
> Dears, I would like retrieve the kinetic energy of the parent particles, > like a GetParentID.. there is a way? thanks a lot in advance :)
Not directly. G4Track objects are not preserved through an event: as soon as a track is killed, the object is deleted and its memory freed up for later use.
What you can do is make use of either a SteppingAction or a TrackingAction to capture the information before a track is deleted: In your SteppingAction::ProcessHits() function, check the status of the G4Step; if it is fStopAndKill, then get the list of secondaries for the track, and save (however you like) the associated between those secondaries and the track's energy.
In a TrackingAction, use PostUserTrackingAction similarly (you don't have to check the status here, since it's called at the fStopAndKill point).
-- Michael Kelsey