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Question Doubt regarding General Particle Source Module 

Keywords: units of differential spectrum in gps.
Forum: Space Applications
Date: 30 Aug, 2005
From: Manju Sudhakar <>

Dear GEANT users ,

I have a doubt regarding one of the commands in General Particle Source Module.

I have constructed a detector system mounted on a space platform, and I wish to irradiate it with cosmic-ray protons, at 1AU.I have the spectrum of the protons with me and I have to enter the energy and flux as a user-defined arbitrary point-wise function of the form, /gps/ene/type Arb /gps/hist/type arb /gps/hist/point ...(energy) ... (flux) .... .... .... .... /gps/hist/inter Lin /run/beamOn 100000

        This is fine, but my doubts are as follows ,
1) What is the default value of the energy points ? Is it MeV ?
2) What is the default value of the differential flux to be entered as in the 
   second column ? 

Could you please answer my doubts. Regards, Manju Sudhakar.

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