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Question please tell me what i am doing wrong for neutron flux in medical linac example 

Forum: Biasing and Scoring
Re: Question nOfSecondary Weighting
Re: None Re: nOfSecondary Weighting (Tsukasa Aso)
Date: 23 Jun, 2015
From: Amjid Mahmood <Amjid Mahmood>

hi brothers i am doing project on photoneutron flux in medical linac but i am stuck in finding photoneutron flux the command which i am using is not giving any output flux value but when i use neutral filter it gives me flux values but in my openion its wrong please tell me what i am doing wrong in my program
/score/create/boxMesh A
/score/mesh/boxSize 15 2 15 cm
/score/mesh/nBin 10 2 10
/score/mesh/translate/xyz 0 15 0 cm
/score/quantity/cellFlux neutronFlux
/score/filter/particle neutronFilter neutron
/score/close
/gun/particle e-
/gun/energy 18 MeV
/run/beamOn 2000000
the out put file for neutronFlux gives zero  
but when i use 
/score/filter/neutral neutronFilter neutron 
i get values as given in attach file please tell me i am doing it correctly or its wrong also please tell where i am making the mistake hopefully i will get quick feed back from your side
 Attachment:
      http://hypernews.slac.stanford.edu/HyperNews/geant4/get/AUX/2015/06/23/00.53-4248-1w1w.txt
      http://hypernews.slac.stanford.edu/HyperNews/geant4/get/AUX/2015/06/23/00.53-19095-mjg.txt

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