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Forum: Processes Involving Optical Photons
Re: Question difference between polished and polishedfrontpainted (Athreya Shankar)
Re: Feedback Re: difference between polished and polishedfrontpainted (Gumplinger Peter)
Re: Question Re: difference between polished and polishedfrontpainted (Athreya Shankar)
Re: Feedback Re: difference between polished and polishedfrontpainted (Gumplinger Peter)
Re: Feedback Re: difference between polished and polishedfrontpainted (Athreya Shankar)
Date: 22 May, 2012
From: Gumplinger Peter <Gumplinger Peter>

Dear Athreya.

> I want to confirm one further point about the diagram: In your previous
> reply, you said that the groundfrontpainted option of
> dielectric_dielectric and the ground dielectric_metal options are
> essentially the same. But, in some of the other forum posts
> 
> (
> http://hypernews.slac.stanford.edu/HyperNews/geant4/get/opticalphotons/307/1.html
> ),
> 
> I read that in case of groundfrontpainted, the reflection is always
> Lambertian irrespective of what else we specify. However, the ground
> option of dielectric_metal takes values from the probabilities that we
> set. Could you please clarify this point?

Thanks for being so careful and checking my replies for consistency. I was wrong when I said that groundfrontpainted in dielectric_dielectric and ground in dielectric_metal are equivalent. This is no longer the case since when the ground dielectric_metal surfaces also take the UNIFIED reflection parameters into account.

Thanks, Peter

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1 Feedback: Re: difference between polished and polishedfrontpainted   (Athreya Shankar - 23 May, 2012)
(_ Disagree: Re: difference between polished and polishedfrontpainted   (Gumplinger Peter - 23 May, 2012)
(_ Ok: Re: difference between polished and polishedfrontpainted   (Athreya Shankar - 23 May, 2012)
(_ Question: Re: difference between polished and polishedfrontpainted   (Erik Dietz-Laursonn - 10 Sep, 2012)
1 Feedback: Re: difference between polished and polishedfrontpainted   (Gumplinger Peter - 18 Sep, 2012)
1 None: Re: difference between polished and polishedfrontpainted   (Erik Dietz-Laursonn - 19 Sep, 2012)
2 Ok: Re: difference between polished and polishedfrontpainted   (Athreya Shankar - 03 Oct, 2012)
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