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Question ParaFissionModel does not produce fission 

Forum: Hadronic Processes
Date: 11 May, 2011
From: Jérôme Roccaz <Jérôme Roccaz>

Hi everyone,

First of all, the aim of my code is to model a fission chamber using enriched uranium. To check if I use the apropriate physical processes, I model a plaque made of uranium and fire thermal neutron on it.

When I use the G4NeutronHPorLFission model with G4NeutronHPFissionData, I obtain fissions but cannot see any fission fragments. As I've read on previous threads, this model cannot produce fission fragments whereas G4ParaFissionModel does. When I use it, no fission appears.

Here is how I implement the G4NeutronHPorLFission model :

G4HadronFissionProcess* theFissionProcess =
                                    new G4HadronFissionProcess();
G4NeutronHPorLFission* theFissionModel = new G4NeutronHPorLFission();	 
G4NeutronHPFissionData* theHPFissionData = new G4NeutronHPFissionData();

theFissionProcess->RegisterMe(theFissionModel); theFissionProcess->AddDataSet(theHPFissionData);

pmanager->AddDiscreteProcess(theFissionProcess);

Here is how I implement the ParaFissionModel :

G4HadronFissionProcess* theFissionProcess =
                                    new G4HadronFissionProcess();

G4ParaFissionModel* theParaFissionModel = new G4ParaFissionModel();

theFissionProcess->RegisterMe(theParaFissionModel);

pmanager->AddDiscreteProcess(theFissionProcess);

Uranium is built like this :

  a=235.0439299*g/mole;
  G4Isotope* U235=new G4Isotope(name="U235", z=92., A=235, a);
  G4Element* elU=new G4Element(name="uranium235",symbol="U",ncomponents=1);
  elU->AddIsotope(U235, abundance=100.*perCent);

  density = 19.1*g/cm3;
  G4Material* Uranium = new G4Material(name="Uranium", density, ncomponents=1);
  Uranium->AddElement(elU, fractionmass=1.);

I use Geant 4.9.4 p01 with Windows/Cygwin.

thanks for help

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1 Question: Re: ParaFissionModel does not produce fission   (Jérôme Roccaz - 17 May, 2011)
1 Feedback: Re: ParaFissionModel does not produce fission   (Jérôme Roccaz - 17 May, 2011)
2 Feedback: Re: ParaFissionModel does not produce fission   (Jérôme Roccaz - 17 May, 2011)
1 Sad: Re: ParaFissionModel does not produce fission   (Jérôme Roccaz - 17 May, 2011)
2 Ok: Re: ParaFissionModel does not produce fission   (Jérôme Roccaz - 18 Jul, 2011)
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