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Question Can I have a shared surface between mother and daughter volume? 

Forum: Geometry
Date: 16 Oct, 2015
From: <Fabio_Zeiser>

Hei,

can I have a shared surface between a mother and daughter volume? 
Or is does that lead to problems as mentioned below? 
I attached a picture of an example geometry below. 

In case I have optical processes and define surfaces between the different 
physical volumes, (how) does Geant4 decide which optical surface definition
to use for a particle that travels from "Daughter A" to "Mother B" . 
It it:
a) undefined
b) OpticalSurface from"Daughter A" to "Mother B"
c) OpticalSurface from "Daughter A" to "Mother A" and "Mother A" to "Mother B"
d) OpticalSurface from "Mother A" to "Mother B" ?

Types of surface definitions I use:
G4LogicalBorderSurface* MoAtoMoBSurface =
    new G4LogicalBorderSurface("MoAtoMoBSurface",
                                MotherA,MotherB,
        			OpMoAtoMoBSurface);

Thanks a lot!

   Attachment:
      http://hypernews.slac.stanford.edu/HyperNews/geant4/get/AUX/2015/10/16/07.47-63923-geometry.png

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1 Feedback: Re: Can I have a shared surface between mother and daughter volume?   (Gumplinger Peter - 23 Oct, 2015)
2 Question: Re: Can I have a shared surface between mother and daughter volume?   (Fabio_Zeiser - 27 Oct, 2015)
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