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Question Optical photon detection 

Keywords: optical photon detection
Forum: Particles
Date: 23 Aug, 2004
From: Matt Orr <>

I am trying to create a simulation and detect optical photons. I have created a sensitive detector (a simple PMT geometry) and defined all of the surfaces and borders as I see necessary. However, when I run the simulation I only detect non-optical photon particles (e.g. protons, gammas, etc.) in my sensitive detector. When I go back and look at the track information I can see that optical photons did pass through my detector, but they never actually interact in the detector, which is why I believe they aren't showing up as hits. I noticed that in the Advanced example RichTb a separate photoelectric effect was defined for optical photons to simulate a PMT. Is this necessary in order to get optical photons to interact photoelectrically on a surface or is there just something I may be missing?

Any help would be very much appreciated. Thanks.

- Matt Orr -

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1 None: Re: Optical photon detection   (Peter Gumplinger - 23 Aug, 2004)
(_ More: Re: Optical photon detection   (Peter Gumplinger - 28 Sep, 2004)
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