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Question Need clarification of User Guide re. Gg4VReplica's mother volume 

Forum: Geometry
Date: 11 Aug, 2014
From: Jacques Goldberg <Jacques Goldberg>

Using Geant4-9.6

Chapter 4 Section 4.1.4.2 says: "G4PVReplica represents nReplicas volumes differing only in their positioning, and completely filling the containing mother volume. Consequently if a G4PVReplica is 'positioned' inside a given mother it MUST be the mother's only daughter volume."

Before embarking on an architecture based on this feature (for a "multidecker" Lead/Detector sandwich) I would like to understand the meaning of the condition "if a G4VReplica is positioned".

Namely, is the World volume automatically such a mother volume, limiting the feature to one instance, or does it just mean that I have to set pMotherLogical to 0 in the two instances of G4VReplica which I wish to create, one for the identical lead sheets, one for the identical detectors ?

Or is this a valid solution: create an intermediary volume containing one Lead sheet and one Detector, and use G4PVReplica to duplicate the auxiliary inside its parent?

Thanks in advance

Jacques

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1 More: Re: Need clarification of User Guide re. Gg4VReplica's mother volume   (Gabriele Cosmo - 10 Sep, 2014)
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