[gate-users] pinhole SPECT question

[Heath, Christopher Charles]

Hello all,
   I am attempting to do some simulations to look at pinhole penetration and
have come across a problem.  Is there any way to set a flag so that particles
passing through a volume but not depositing energy are recorded i.e. photons
that pass through the collimator without scattering or attenuating?

Thanks,
Christopher

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Heath, Christopher Charles
Vanderbilt University
Email: christopher.c.heath at Vanderbilt.Edu