|Message: Re: How to introduce a Hole in a LogicalBorderSurface||Not Logged In (login)|
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What you need to do is construct your geometry such that your 'exit window' is a third volume (volume 3) butt up against your volume 1 and also a daughter of your volume 2. If that exit window is assumed to be perfectly smooth between two dialectric media you don't even have to define a LogicalBorderSurface for it. The G4 navigator will know the two volumes on each side of the boundary and only call your LogicalBorderSurface when that is volume1/volume2.
Hope this helps, Peter
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