|Message: Scintillation photons leaking through refelctive surface||Not Logged In (login)|
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I'm simulating a plastic scintillator which is wrapped with a reflective foil on three sides, the unwrapped forth side is directly coupled to the PMT. For testing reasons I set the refl_foil = 0, so that all photons should be absorbed at the foil boundary. If a start an electron within the scinillator everything is working as supposed to: scintillation light is produced, photons get absorbed on the foil or detected by the PMT. BUT: If I start the electron outside the the setup I find that half of the produced scintillation photons leak through the plastic/foil boundary ( and it looks like at the point where the primary particle enters the setup).
I attached my scintillator detector construction with all necessary optical propterties but I can't see where I'm going wrong. From my understanding the two things happening could be 1) scintillation light is produced in the foil, but that shouldn't be possible as I haven't defined any scinillation properties for this material 2) the border surfaces are not correctly recognized by the step but I don't see a reason why.
The physics list I'm using is the shielidngList where I added G4OpticalPhysics manually.
Any idea/help would be very much appreciated! Thanks Geertje
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