|Message: Re: problems with optical photons||Not Logged In (login)|
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> I studied the N06 example and I took a look at the Lxe extended example, but didn't get > the solution.
I suspect that your problem of tracks stopping at the boundary has to do with the fact that you probably didn't give the index of refraction for the wrapping (scintillator/wrapping interface) and for the claddings (scintillator/clad2/clad1); i.e. optical photons cannot be tracked into any material for which there is no index of refraction defined. Such materials are treated as absolutely "black".
For your WLS core fiber you must only define one photon range which should cover both the scintillation spectrum and the WLS emission spectrum. Then, for the emission spectrum you define 0.0 through most/all of the scintillation range and then the shape of the emission spectrum. For the absorption length you specify the short distance over the scintillation spectrum range and a long distance over that part that is equivalent to the emission spectrum.
Hope this helps - please take another close look at the LXe example how the optical photon ranges and absorption lengths are defined for the WLS fiber and how the WLS fiber core and the two cladding layers are defined, including their index of refraction.
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