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Question downscaling of optical photons 

Keywords: downscaling optical photons
Forum: Processes Involving Optical Photons
Date: 17 Nov, 2002
From: Jacek M. Holeczek <>

My simulation produces tons of optical photons.
Basically, in two ways - Cerenkov and Scintillation.
I am looking for a way to "automatically" kill a certain percentage
of photons that are going to be produced.
Please note that I am talking about killing these photons BEFORE they
are created - I am NOT talking about killing them AFTER they already
exist. This can be done in G4UserStackingAction::ClassifyNewTrack, but
this is too late - the unnecessary time consumed is much too long.
I can cheat the Scintillation setting a lower yield, but I have not
found any way to do the same to Cerenkov.
Thanks in advance,

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1 Feedback: Re: downscaling of optical photons   (Peter Gumplinger - 18 Nov, 2002)
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