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None Re: Major tracking bug in G4ExtrudedSolid 

Forum: Geometry
Re: None Major tracking bug in G4ExtrudedSolid (Tom Roberts)
Date: 16 Dec, 2014
From: Tom Roberts <Tom Roberts>

I just built using the most recent Geant4 version Name: geant4-10-01 (5-December-2014) (This required a handful of straightforward changes in my code, in places far away from this.) It fails in exactly the same way.

I just built using the older Geant4 version Name: geant4-09-06-patch-02 (17-May-2013) IT SUCCEEDS. (This is the previous version of Geant4 with which an old version of G4beamline worked -- this build is with my current code.)

So I am now sure this is a Geant4 problem, introduced sometime between geant4.9.6.p02 and geant4.10.0.p02, almost surely in G4Extrusion routines used by the navigator.

That is G4beamline, which is admittedly a rather complex program using Geant4; it looks like I have to build a pure Geant4 test program, and then report it as a bug.

How is it nobody else has seen this?

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