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None problem with command base scorer 

Forum: Biasing and Scoring
Date: 17 Jul, 2014
From: Jelena Ilic <Jelena Ilic>


I'm working on  a geometry consisting of a metal block  filled with quartz straws  containing a liquid scintillator.  

I wanted to use the command base scorer to look at the deposited energy but I'm getting an error message when running the code:

-------- EEEE ------- G4Exception-START -------- EEEE -------
*** G4Exception : OpBoun01
issued by : G4OpBoundaryProcess::PostStepDoIt
G4OpBoundaryProcess/PostStepDoIt(): The Navigator reports that it returned an invalid normal
Invalid Surface Normal - Geometry must return valid surface normal

*** Event Must Be Aborted ***
-------- EEEE -------- G4Exception-END --------- EEEE -------


The code runs without problem if I do not invoke G4ScoringManager (please see attached file).

My StackingAction class is rudimentary -  I just count number of produced optical photons.

What could be a problem here?



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