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Forum: Geometry
Re: Question Photon Not Moving
Re: More Re: Photon Not Moving (Gabriele Cosmo)
Date: 08 Dec, 2011
From: Andrzej Szelc <Andrzej Szelc>

Hi, I have an identical problem where photons at very different energies seem to stop with a ~e-14 stepsize well inside the .gdml defined volume. It does seem that they stop on the boundary of voxels and if I dig in to the geant4 part of the code (G4ParallelWorldScoringProcess.cc) it turns out that fOnBoundary=true . I have seen it happen several times, and I'm able to reproduce it consistently reusing the random seeds. I don't think I can supply a cut down version that would reproduce this elsewhere, though.

Michael, were you able to find a solution to this? Is there some way to catch these events and force them to have a bigger step inside the user action code? thanks, Andrzej

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1 Feedback: Re: Photon Not Moving   (Michael Douglass - 09 Dec, 2011)
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