|Message: Re: multiple optical photon bouncing||Not Logged In (login)|
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Hi Peter, Thanks a lot for the explanation! Best, Balint On 30 Mar 2016 1:12 a.m., Gumplinger Peter <firstname.lastname@example.org> wrote: *** Discussion title: Processes Involving Optical Photons Hi Balint, > We find that in many cases the optical photon is bouncing a lot (see > below) between the thin surface boundaries before either getting back to > the large liquid argon volume It seems to me that this photon reflect off WLSSupport then goes through 0.135mm in WLS and then goes 159mm through LArCol before hitting another WLS. The photons are not bouncing inside WLS (thin surface boundaries). > Which optical surface parameter could enhance this effect so much? The mirrow (WLSSupport) may not be perfect and has a finite reflectivity. There is also a finite absorption length in LAr. The track you show reflects at WLSSupport and refracts either in or out of WLS from LAr or to LAr. I see nothing surprising. Peter ------------------------------------------------------------- Visit this GEANT4 at hypernews.slac.stanford.edu message (to reply or unsubscribe) at: http://hypernews.slac.stanford.edu/HyperNews/geant4/get/opticalphotons/631/1.html [ MIME part of type text/html without a name stripped ]