User primary particle generator class. More...

#include <Doxymodules_runAndEvent.h>

Inheritance diagram for RE02PrimaryGeneratorAction:

Public Member Functions
	RE02PrimaryGeneratorAction ()

	~RE02PrimaryGeneratorAction ()

virtual void	GeneratePrimaries (G4Event *)

Private Attributes
G4double	fSigmaPosition

G4ParticleGun *	fParticleGun

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 58 of file Doxymodules_runAndEvent.h.

Constructor & Destructor Documentation

◆ RE02PrimaryGeneratorAction()

RE02PrimaryGeneratorAction::RE02PrimaryGeneratorAction ( )

Definition at line 44 of file RE02PrimaryGeneratorAction.cc.

 : 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::~RE02PrimaryGeneratorAction ( )

Definition at line 71 of file RE02PrimaryGeneratorAction.cc.

{
  delete fParticleGun;
}

Member Function Documentation

◆ GeneratePrimaries()

void RE02PrimaryGeneratorAction::GeneratePrimaries ( G4Event * anEvent )

virtual

Definition at line 78 of file RE02PrimaryGeneratorAction.cc.

{ 
 
  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);
}