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Question Cf 252 Neutron Source 

Forum: Particles
Date: 19 Jul, 2011
From: Eric <Eric>

Hi All-

I need to define a Cf 252 neutron source, and haven't been successful. In previous sims, I've been dealing mostly with monoenergetic things (ie, Cs137, I would just define a 662 kev gamma and call it good), but there should be a range of values for Cf 252.

I've defined the source using something like:
----------------------------------------------------
particleGun->SetParticleEnergy(some value*eV);
particleGun-> SetParticlePosition(G4ThreeVector(0.,0.,0);
particleGun->SetParticleMomentumDirection(G4ThreeVector(0.,0.,1));

G4int Z=98, A=252;
G4double ionCharge = 1.*eplus;
G4double excitEnergy= 0.*keV;

G4ParticleDefinition* ion = G4ParticleTable::GetParticleTable()->GetIon(Z,A,excitEnergy);
particleGun->SetParticleDefinition(ion);
particleGun->SetParticleCharge(ionCharge);

particleGun-> GeneratePrimaryVertex(anEvent);
----------------------------------------------------

Which gives me an ion, in the simulation, of Cf252, but doesn't emit a range of low energy neutrons. I haven't found a good example showing how to do this... anyone have any insight?

Thanks!

-Eric

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1 Feedback: Re: Cf 252 Neutron Source   (Michael H. Kelsey - 19 Jul, 2011)
1 None: Re: Cf 252 Neutron Source   (Michael H. Kelsey - 06 Oct, 2011)
(_ None: Re: Cf 252 Neutron Source   (michel maire - 07 Oct, 2011)
2 Idea: Re: Cf 252 Neutron Source   (Zach Hartwig - 23 Jul, 2011)
1 None: Re: Cf 252 Neutron Source   (Luis Manzanillas - 28 Oct, 2014)
2 More: Re: Cf 252 Neutron Source   (Shivang Tripathi - 13 May, 2015)
1 Idea: Re: Cf 252 Neutron Source   (Zach Hartwig - 13 May, 2015)
... 1 Message(s)
2 Idea: Re: Cf 252 Neutron Source   (Zach Hartwig - 14 May, 2015)
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