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Forum: Particles
Re: Question How to generate flux? (Shivang Tripathi)
Date: 14 Apr, 2015
From: michel maire <michel maire>

On Sat, 11 Apr 2015 05:34:53 GMT, Shivang Tripathi wrote:
> Dear Experts,
> 
> I want to generate neutron flux(no. of neutrons/sq.cm-sec) using GPS.
> Any help would be appreciated.

  I would not use GPS, but simpler G4ParticleGun.

  1- for spatial distribution, see example Hadr03: PrimaryGeneratorAction
  2- for time window, I would add after GeneratePrimaryVertex(anEvent) :

      G4double tmin = 0*s, tmax = 1*s;
      G4double t0 = tmin + (tmax - tmin)*G4UniformRand();
      anEvent->GetPrimaryVertex()->SetT0(t0);

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