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Forum: Biasing and Scoring
Re: Question stuck track and aborted events (matthew)
Re: None Re: stuck track and aborted events (Makoto Asai)
Re: None Re: stuck track and aborted events (matthew)
Re: None Re: stuck track and aborted events (Makoto Asai)
Re: None Re: stuck track and aborted events (matthew)
Re: None Re: stuck track and aborted events (Makoto Asai)
Date: 12 Jan, 2015
From: matthew <matthew>

I am using GEANT4-10.0.1

mat

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None Re: stuck track and aborted events  by Makoto Asai <Makoto Asai>,   13 Jan, 2015
Re: None Re: stuck track and aborted events (matthew)
Thanks.
Please upload your main, physics list and primary generator action classes so that we can reproduce your problem. 
On your side, could you please try one more thing? That is, it seems you are using G4UserSpecialCuts to limit the TOF. Could you remove this G4UserSpecialCuts process if it makes difference?
Kind regards,
Makoto
None Re: stuck track and aborted events  by Makoto Asai <Makoto Asai>,   13 Jan, 2015
Re: None Re: stuck track and aborted events (Makoto Asai)
Hi,

Actually, one more thing you may try. 

Given the size of your world volume is in the order of 1.e+4 km, the default geometry tolerance of 1.e-9 mm must be too small. Given shape of your solid is sphere, rounding error may easily be much larger than this default tolerance, and that causes intrinsic volume overlaps. Please note that visualization is not sensitive for this kind of overlap. 
Please add the following line immediately after you define "world_hx" in the Construct() method of your detector construction.

  G4GeometryManager::GetInstance()->SetWorldMaximumExtent(2.*world_hx);

For more detail about this, please refer to section 4.1.8.6. of the application developers guide.

Makoto

   
None Re: stuck track and aborted events  by matthew <matthew>,   14 Jan, 2015
Re: None Re: stuck track and aborted events (Makoto Asai)
Changing the tolerance did the trick! Thank you so much for taking the time to help. I highly doubt I would have found that solution on my own.

tolerance ni tsuite oshiete kurete arigatou!

very grateful,
matt
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