|Message: Re: Refractive indices of painting materials||Not Logged In (login)|
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> Then how can I implement a grind scintillator block wrapped with specular
> material sheet?
I am afraid this combination of "ground" dielectric_dielectric and specular ("polished") reflector is only possible if you actually implement the geometry with the gap and two surfaces scintillator/gap and gap/reflector (dielectric_metal).
However, if you have access to the G4 source, by modifying only one line, you can change the behaviour of 'groundbackpainted' to do what you want. Comment out:
Then the logic in DoReflection will choose 'specular' instead of Lambertian.
I should be thinking of another user option to choose the back-reflector property in 'backpainted'.