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Question How to define cylindrical volume source with known flux? 

Forum: Particles
Date: 01 Nov, 2010
From: Andrew Voyles <Andrew Voyles>

Hello there, I am quite new to GEANT4, so please forgive me for any stupid questions!

So my problem is this: I need to define a cylindrical source of neutrons. I have seen similar posts using GPS commands, such as:

 /gps/particle gamma
 /gps/pos/type Volume
 /gps/pos/shape Cylinder
 /gps/pos/centre 0. 0. 0. mm
 /gps/pos/radius 10. mm
 /gps/pos/halfz 5. mm
 /gps/ang/type iso
 /gps/energy 1000. keV
 /gps/number 100
 /vis/open HepRepFile
 /vis/drawVolume
 /vis/scene/add/trajectories
 /vis/scene/add/hits
 /run/beamOn 1

However, this still emits a single particle per event. I have a known homogeneous neutron flux I need to simulate as the cylinder emitting the neutrons radially inwards. Other than simply running massive amounts of /run/beamOn, how can I simulate this known neutron flux?

Thanks in advance for your help!

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1 Feedback: Re: How to define cylindrical volume source with known flux?   (Gumplinger Peter - 01 Nov, 2010)
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