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None How to disnable Cerenkov Effect in a specified material/volume 

Forum: Processes Involving Optical Photons
Date: 21 Jun, 2003
From: Dvorak <Dvorak>

but How can I tell the program to make these vectors? just in one array of 9.999eV,0.0,10 eV,1.0,10.001eV,0.0,10.999eV,0.0 or call the AddProperty("RINDEX",{9.999, 10}) for several times.

#NumEntries is not the number of emission lines, but rather the number of spectral points you specify. No line width is ever infinitesimal narrow anyway. So, for example, if you have narrow emission lines (with equal intensity, one at 10eV and another at 11eV, you could specify the following array pair:

#( 9.999eV,0.0) (10 eV,1.0) (10.001eV,0.0) (10.999eV,0.0) (11 eV,1.0) (11.001eV,0.0)

#i.e. you approximate your emission spectrum with narrow saw tooth lines. G4 does a numerical integration over this array and then samples the photon momentum in the usual way [see G4Scintillation::BuildThePhysicsTable() and the "Determine photon momentum" part of G4Scintillation:PostStepDoIt]

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