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Sad Polish and ground - where it refers finally ? 

Forum: Processes Involving Optical Photons
Date: 30 Apr, 2010
From: Yuri Soloviev <Yuri Soloviev>

 Hello, 
 I am relatively new to Geant4 and trying to understand how to use the 
 the  glisur and unified models. Sofar I understood from the forum and 
 from the Manual that the concept of polish or ground refers to the surface of 
 the  optical volume and that wrapper is always Lambertian, 
 see e.g. explanation in 

 http://hypernews.slac.stanford.edu/HyperNews/geant4/get/geometry/574/1.html

 Recently I read another explanation from the same author that 
 "The 'ground' and 'polished' part of 'backpainted' actually does refer to 
 the wrapping!!!" 
 see 

 http://hypernews.slac.stanford.edu/HyperNews/geant4/get/opticalphotons/323/1.html

 That makes some confusion.
 Could someone explain me what is correct ? 

 thank you 
                   Yuri

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1 Feedback: Re: Polish and ground - where it refers finally ?   (Gumplinger Peter - 30 Apr, 2010)
(_ Feedback: Re: Polish and ground - where it refers finally ?   (Yuri Soloviev - 01 May, 2010)
(_ Disagree: Re: Polish and ground - where it refers finally ?   (Gumplinger Peter - 03 May, 2010)
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