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Keywords: local magnetic field logical volume
Forum: Fields: Magnetic and Otherwise
Re: Question Problems with a local magnetic field (Lewis Dartnell)
Date: 09 May, 2005
From: Gumplinger Peter <Gumplinger Peter>

Dear Lewis,

Sorry, nobody helped you since your posting. I was away on vacation.

I see nothing wrong with your code snippets. I can only guess that maybe the G4Navigator does not 'see' your:

G4Sphere* MagAnomaly

Did you check with step-wise debugging that the track actually enters this volume? Also, maybe your track is/was along the y-axis.

If you find that the volume is not found, this either indicats an error in your volume definitions or a bug to be resolved by the geometry category. Another way to narrow this down would be to define a simpler volume, like a G4Box, and see if the local field is seen in that case.

Best regards, Peter

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