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Idea Re: Discripancy in Geomatrical Efficiency of NaI Detector 

Forum: Geometry
Re: Question Discripancy in Geomatrical Efficiency of NaI Detector (M Tariq Siddique)
Date: 23 Apr, 2009
From: M Tariq Siddique <M Tariq Siddique>

Hello, i have sorted out the problem finally actually G4UnifomRand() donot generate a uniform isotropic distribution if i directly multiply pi to generate theta from 0 to pi, So i have used another mathod for a uniform isotropic distribution of theta and it is theta = acos(1+G4UniformRand()*(cos(thetamax)-1)); and it work perfectly and all discipancy of geomatrical efficiency are gone.

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