G4BlinePrimaryGeneratorAction Class Reference

#include <G4BlinePrimaryGeneratorAction.hh>

Inheritance diagram for G4BlinePrimaryGeneratorAction:

Public Member Functions
	G4BlinePrimaryGeneratorAction ()
virtual	~G4BlinePrimaryGeneratorAction ()
virtual void	GeneratePrimaries (G4Event *anEvent)
void	SetUserPrimaryAction (G4VUserPrimaryGeneratorAction *anAction)
Public Member Functions inherited from G4VUserPrimaryGeneratorAction
	G4VUserPrimaryGeneratorAction ()
virtual	~G4VUserPrimaryGeneratorAction ()

Detailed Description

Definition at line 60 of file G4BlinePrimaryGeneratorAction.hh.

Constructor & Destructor Documentation

G4BlinePrimaryGeneratorAction::G4BlinePrimaryGeneratorAction

(

)

Definition at line 51 of file G4BlinePrimaryGeneratorAction.cc.

{
  fUserPrimaryAction = 0;
  fFirstPartOfBline = true;
}

G4BlinePrimaryGeneratorAction::~G4BlinePrimaryGeneratorAction ( )

virtual

Definition at line 59 of file G4BlinePrimaryGeneratorAction.cc.

{ 
}

Member Function Documentation

void G4BlinePrimaryGeneratorAction::GeneratePrimaries ( G4Event *  anEvent )

virtual

Implements G4VUserPrimaryGeneratorAction.

Definition at line 65 of file G4BlinePrimaryGeneratorAction.cc.

References G4Event::AddPrimaryVertex(), G4ChargedGeantino::ChargedGeantino(), energy(), G4Exception(), G4VUserPrimaryGeneratorAction::GeneratePrimaries(), G4ParticleDefinition::GetPDGCharge(), G4ParticleDefinition::GetPDGMass(), G4PrimaryVertex::GetPosition(), G4Event::GetPrimaryVertex(), G4PrimaryVertex::GetT0(), JustWarning, python.hepunit::MeV, G4PrimaryParticle::SetCharge(), G4PrimaryParticle::SetMass(), and G4PrimaryVertex::SetPrimary().

{
  if (!fUserPrimaryAction)
  {
    G4Exception("G4BlinePrimaryGeneratorAction::GeneratePrimaries()",
                "NullPointer", JustWarning,
                "Primary generator action not defined !");
    return;
  }

  // For the first part of a bline the start position and time are defined
  // by using the USER primary action while for the second part the previous
  // values are taken.
  
  if (fFirstPartOfBline)
  {
    // set the position and time defined by using the USER primary action
 
    G4Event* tmpEvent = new G4Event();    
    fUserPrimaryAction->GeneratePrimaries(tmpEvent);
    fBlineStartPosition = tmpEvent->GetPrimaryVertex()->GetPosition();
    fT0 = tmpEvent->GetPrimaryVertex()->GetT0();
    delete tmpEvent;
  }
  fFirstPartOfBline = false;   

  G4PrimaryVertex* primary_vertex = 
    new G4PrimaryVertex(fBlineStartPosition, fT0);

  // Define the particle to be tracked as Charged Geantino
    
  G4ChargedGeantino* pdef = G4ChargedGeantino::ChargedGeantino();
   
  G4double mass =  pdef->GetPDGMass();
  G4double energy = 10000.*MeV + mass;
  G4double pmom = std::sqrt(energy*energy-mass*mass);

  // The momentum direction and energy do not have an effect in tracing of 
  // bline but still need to be defined.
   
  G4double px = 0.;
  G4double py = 0.;
  G4double pz = pmom;

  G4PrimaryParticle* particle = new G4PrimaryParticle(pdef,px,py,pz);
  particle->SetMass( mass );
  particle->SetCharge(pdef->GetPDGCharge());
  primary_vertex->SetPrimary( particle );
 
  anEvent->AddPrimaryVertex( primary_vertex );
}

void G4BlinePrimaryGeneratorAction::SetUserPrimaryAction ( G4VUserPrimaryGeneratorAction *  anAction )

inline

Definition at line 68 of file G4BlinePrimaryGeneratorAction.hh.

Referenced by G4BlineTracer::ComputeBlines().

      { fUserPrimaryAction=anAction; }

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The documentation for this class was generated from the following files:

• G4BlinePrimaryGeneratorAction.hh
• G4BlinePrimaryGeneratorAction.cc