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Forum: Geometry
Re: Question Geantino Volume probe (Michael Rinaldi)
Date: 20 Oct, 2010
From: michel maire <michel maire>

On Wed, 20 Oct 2010 01:27:49 GMT, Michael Rinaldi wrote:
> I have a detector constructed of many logical volumes. I'd like to probe
> it at runtime using a geantino. I recall reading somewhere in the forum
> (although I can't seem to find it now) that I could use a geantino to
> probe the volumes. Specifically what I need is to send a geantino
> through and get the X,Y,Z coordinates of the volume boundaries as the
> geantino traverses them. Specifically the volume entrance and exit
> points. Can someone direct me to an example where this might be done or
> if that is not available what are the appropriate objects to use and
> method calls to be made and where (UserStepping?).
> 
> Thanks, Mike
> 

 1- use geantino in your PrimaryGeneratorAction 
 2- set /tracking/verbose 1

 For instance, you can run novice examples N02 or N03 interactively with :

 /gun/particle geantino
 /tracking/verbose 1
 /run/beamOn 1

       Michel

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