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Question G4Navigator::ComputeStep() warnings w/ G4Tubs & G4Polycone 

Keywords: G4Navigator::ComputeStep() WARNING G4Tubs G4Polycone G4box
Forum: Geometry
Date: 26 Apr, 2006
From: Kazuyoshi Furutaka <Kazuyoshi Furutaka>

Hi,

I'm sorry for my vague question.  I couldn't still figure out
essence of the problem...

I'm now developing an application to simulate response of clover
germanium detectors to gamma rays.

When I use G4Tubs for germanium crystals, I get many warnings from
G4Navigator::ComputeStep() like the following:
WARNING - G4Navigator::ComputeStep()
          Track stuck, not moving for 10 steps
          in volume -CloverCrystal- at point (85.92606148,22.30000193,-28.2143504)
          direction: (0.9168569373,0.3378228548,0.2127183005).
          Potential geometry or navigation problem !
          Trying pushing it of 9e-10 mm ...
In this case the simulation finishes anyhow.

If G4Polycone is used in place of G4Tubs, similar warnings are
displayed and the program really stucks...
(which may be related to the problem described in my post #542)

If I use G4Box with the same height and "radius" (half-widths) as
the G4Tubs, NO WARNINGS AT ALL...

How can I resolve this situation?
I'll appreciate any suggestion.

Thanks in advance.

Kazuyoshi

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1 Feedback: Re: G4Navigator::ComputeStep() warnings w/ G4Tubs & G4Polycone   (Kazuyoshi Furutaka - 27 Apr, 2006)
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