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Question Re: GPS Primary particle source as Circle  

Forum: Event and Track Management
Re: Question GPS Primary particle source as Circle (Bogdanov Aleksey)
Re: None Re: GPS Primary particle source as Circle (Bogdanov Aleksey)
Re: None Re: GPS Primary particle source as Circle (michel maire)
Date: 05 May, 2014
From: Bogdanov Aleksey <Bogdanov Aleksey>

Thank  you for advice, i have no any problem to coding directly the primary source, 
but in future i would like to set different profiles of primary shape proton sourse by R. 
If I'm not mistaken GPS contains macro commands for setting distribution by angular and Energy, 
but i can't find any example to set  circle by uniform radius distribution .   

In attached picture - red - described which profile i would like to push

 blue - default by this commands:

/gps/pos/type Plane
/gps/pos/shape Circle
/gps/pos/rot1 1 0 0
/gps/pos/rot2 0 1 0  
/gps/pos/centre 0. 0. -10.5 cm
/gps/pos/radius 5.0 cm
/gps/energy 300 MeV
/gps/direction 0 0 1
/run/beamOn 10000

I repeat, in the future I would like to learn how to ask GPS through different distribution profiles along the radius of the beam in the form of my circle
 

   Attachment:
      http://hypernews.slac.stanford.edu/HyperNews/geant4/get/AUX/2014/05/05/07.44-6854-1.png

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