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Forum: Event and Track Management
Re: Question a question on special cuts per region (Victor_Makarov)
Date: 04 Nov, 2007
From: Vladimir IVANTCHENKO <vnivanch@mail.cern.ch>

On Thu, 1 Nov 2007, Victor_Makarov wrote:

> *** Discussion title: Event and Track Management
> Email replies to PublicHyperNews@slac.stanford.edu must include:
>   In-Reply-To: <"/eventtrackmanage/733"@geant4-hn.slac.stanford.edu>
>   Subject: ...change this to be about your reply.
> 
> Hello. This is my problem. My aim is to eliminate electrons',
> positrons', and gammas' creation in uran. For this purpose I created a
> region, assigned it to a logical volume of uran. My default production
> cuts (I used QGSP_BERT_HP list with 10 cm) are also used for my created
> region if I do not manually set special ones, right? Here's a printout
> where one can see that very high energy thresholds are used for uran.
> But further we can see that low energy gammas and electrons are still
> created in uran. Please, could somebody point at my mistake? Thanks in
> advance.
> 

Hello,

Not all processes producing e+,e-, gamma use cuts. To avoid this there are 
extra command, which switch on a mechanism to remove particles below cut:

"/run/particle/applyCuts"

VI

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