RE02PrimaryGeneratorAction Class Reference

#include <RE02PrimaryGeneratorAction.hh>

Inheritance diagram for RE02PrimaryGeneratorAction:

Public Member Functions
	RE02PrimaryGeneratorAction ()
	~RE02PrimaryGeneratorAction ()
virtual void	GeneratePrimaries (G4Event *)
Public Member Functions inherited from G4VUserPrimaryGeneratorAction
	G4VUserPrimaryGeneratorAction ()
virtual	~G4VUserPrimaryGeneratorAction ()

Detailed Description

User primary particle generator class

• void GeneratePrimaries(G4Event*) an incident particle is proton with 150 MeV energy at the position (x,y,-100 cm) toward the (0,0,1) direction. The x and y positions are uniformly varied from -5 mm to 5 mm, respectively.

Definition at line 51 of file RE02PrimaryGeneratorAction.hh.

Constructor & Destructor Documentation

RE02PrimaryGeneratorAction::RE02PrimaryGeneratorAction

(

)

Definition at line 45 of file RE02PrimaryGeneratorAction.cc.

References python.hepunit::cm, G4ParticleTable::FindParticle(), G4ParticleTable::GetParticleTable(), python.hepunit::MeV, python.hepunit::mm, G4ParticleGun::SetParticleDefinition(), G4ParticleGun::SetParticleEnergy(), G4ParticleGun::SetParticleMomentumDirection(), and G4VPrimaryGenerator::SetParticlePosition().

 : G4VUserPrimaryGeneratorAction(),
   fParticleGun(0)
{
  G4int n_particle = 1;
  fParticleGun = new G4ParticleGun(n_particle);

// default particle
  G4ParticleTable* particleTable = G4ParticleTable::GetParticleTable();
  G4ParticleDefinition* particle = particleTable->FindParticle("proton");
  fParticleGun->SetParticleDefinition(particle);
  fParticleGun->SetParticleMomentumDirection(G4ThreeVector(0.0,0.0,1.));
  fParticleGun->SetParticleEnergy(150.0*MeV);
//
// default beam position
  G4double position = -200./2.*cm;
//
// Initial beam spot size in sigma.; This is not a part of ParticleGun.
  fSigmaPosition = 10.* mm;

//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
//
  fParticleGun->SetParticlePosition(G4ThreeVector(0.*cm, 0.*cm, position));
}

RE02PrimaryGeneratorAction::~RE02PrimaryGeneratorAction

(

)

Definition at line 72 of file RE02PrimaryGeneratorAction.cc.

{
  delete fParticleGun;
}

Member Function Documentation

void RE02PrimaryGeneratorAction::GeneratePrimaries ( G4Event *  anEvent )

virtual

Implements G4VUserPrimaryGeneratorAction.

Definition at line 79 of file RE02PrimaryGeneratorAction.cc.

References G4UniformRand, G4ParticleGun::GeneratePrimaryVertex(), G4VPrimaryGenerator::GetParticlePosition(), G4VPrimaryGenerator::SetParticlePosition(), CLHEP::Hep3Vector::setX(), and CLHEP::Hep3Vector::setY().

{ 

  G4ThreeVector position = fParticleGun->GetParticlePosition();
  G4double dx = (G4UniformRand()-0.5)*fSigmaPosition;
  G4double dy = (G4UniformRand()-0.5)*fSigmaPosition;
  position.setX(dx);
  position.setY(dy);
  fParticleGun->SetParticlePosition(position);
  fParticleGun->GeneratePrimaryVertex(anEvent);
}

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

• RE02PrimaryGeneratorAction.hh
• RE02PrimaryGeneratorAction.cc