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Forum: Fields: Magnetic and Otherwise
Re: Question electrons positively charged?? (Jérôme Roccaz)
Re: Idea Re: electrons positively charged?? (Vladimir Ivanchenko)
Re: More Re: electrons positively charged?? (Jérôme Roccaz)
Re: Idea Re: electrons positively charged?? (Vladimir Ivanchenko)
Date: 09 Aug, 2011
From: Jérôme Roccaz <Jérôme Roccaz>

On Tue, 09 Aug 2011 14:47:43 GMT, Vladimir Ivanchenko wrote:
> Hello,
> 
> This problem at the end of a job indicates that likely your code delete
> some object which are also deleted by Geant4 kernel.

I delete the field within my DetectorConstructor destructor. Matter may come from that, right?

> 
> According to e+, e- in electric field artifact: to be sure that there is
> a real problem activate tracking verbose:
> 
> /tracking/verbose 1
> 
> and run again to be sure that the particle is e-.
> 
> VI

I've checked and particles are e-. But I've also see more clearly each step of the e-, what I haven't done before ... just drawn histograms of z-depth

Here is a piece of my output in attached file. I've indicated the coordinates columns, the prestep kinetic energy and poststep kinetic energy and type of interaction experiences by the e-.

What we can see is that at the beginning of the track the e- goes towards z < 0 axis and gain energy. It interacts in the Plaque (the detector is like a plane ionisation chamber with 2 planned electrodes calles Plaque and Signal, and gas between called Sensitive) and then goes towards the opposite electrodes.

I wonder whether this behaviour is physically correct or not, according to e- energy

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      http://hypernews.slac.stanford.edu/HyperNews/geant4/get/AUX/2011/08/09/23.22-62815-forumG4.txt

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1 Feedback: Re: electrons positively charged??   (Jérôme Roccaz - 17 Aug, 2011)
(_ Feedback: Re: electrons positively charged??   (Gumplinger Peter - 17 Aug, 2011)
(_ None: Re: electrons positively charged??   (Jérôme Roccaz - 17 Aug, 2011)
1 None: Re: electrons positively charged??   (Jérôme Roccaz - 17 Aug, 2011)
2 Feedback: Re: electrons positively charged??   (Gumplinger Peter - 18 Aug, 2011)
1 None: Re: electrons positively charged??   (Jérôme Roccaz - 18 Aug, 2011)
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