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Question Cut-Regions for reflected volumes 

Keywords: cuts region reflections reflectionfactory
Forum: Particles
Date: 22 Sep, 2003
From: Martin Liendl <Martin Liendl>

How does one get G4Regions into reflected parts of the detector?

When the G4ReflectionFactory is used in constructing the geometry, it 
sometimes creates new (reflected) sub-trees of the detector if a 
reflection-matrix is used. For example, if A,B,C,E,F are 
G4LogicalVolumes, 
and I create a hierarchy as follows: 

      A
     / \
 (rot) (ref)
     \ /
      B
      |
      C
     / \
    E   F

Furthermore, I want to have B in a G4Region, and F in another G4Region.

The G4ReflectionFactory produces silently some new G4LogicalVolumes,
and the geometrical structure is changes to this:

       A
      /  \
   (rot) (rot2)
     |       |
     B      B_refl
     |       |
     C      C_refl
    / \      /    \
   E   F   E_refl  F_refl

But the regions are not applied to the reflected hierarchy ....

Am I correct, or did I miss something in the documentation
of G4Region & related classes?

Thanks,
 Martin


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1 More: Re: Cut-Regions for reflected volumes   (Gabriele Cosmo - 24 Sep, 2003)
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