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None Getting primary event energy 

Keywords: Primary particle energy
Forum: Event and Track Management
Date: 29 Nov, 2006
From: Hugh Lippincott <>

I'm running a simulation in which I shoot neutrons into liquid argon and observe the recoiling argon nucleus. I've successfully adapted ExN02 to do this. I now want to be able to record the energy of the neutron when it interacts in the liquid, as many times it will already have scattered once in my apparatus and therefore will no longer have its initial energy.

I've tried adding code as described in particularly part 1, "How can I get the information of the original primary particle?" but my code crashes. It compiles fine, but then when it tries to execute the following line:

 T01TrackInformation* info = (T01TrackInformation*)(aStep->GetTrack()->GetUserInformation();

from, it fails. Can someone help me figure out why it's doing this?

Many thanks, Hugh

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1 None: Re: Getting primary event energy   (Makoto Asai - 29 Nov, 2006)
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