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Question Histogram related with ROOT 

Forum: Particles
Date: 11 Feb, 2003
From: Arami <arami97@naver.com>

Hi.I`m in the first step of Geant4... I know how to set a uniform cylinderical beam.. But I don`t know a way of making a Gaussian shape beam(three dimensional). [Is this related with RandGauss or RandMultiGauss(in PrimaryGenertorAction.cc)?] The energy of particle is fixed..just need a variation of the number of particle...At x,y,z=0(center of beam),the most particles are shut.In other words,function of beam shape is te number of paticle vs positon(from cener of circle)..What should I add to definition part of beam in PrimaryGeneratorAction.cc?

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1 Note: Above title is wrong...sorry.."Beam of Gaussian shape!!"" is right...   (Arami - 11 Feb, 2003)
2 None: Re: Histogram related with ROOT   (michel maire - 12 Feb, 2003)
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