PrimaryGeneratorGun1 Class Reference

#include <PrimaryGeneratorGun1.hh>

Inheritance diagram for PrimaryGeneratorGun1:

Collaboration diagram for PrimaryGeneratorGun1:

Public Member Functions
	PrimaryGeneratorGun1 ()
	~PrimaryGeneratorGun1 ()
virtual void	GeneratePrimaries (G4Event *)
Public Member Functions inherited from G4VUserPrimaryGeneratorAction
	G4VUserPrimaryGeneratorAction ()
virtual	~G4VUserPrimaryGeneratorAction ()

Detailed Description

Definition at line 46 of file PrimaryGeneratorGun1.hh.

Constructor & Destructor Documentation

PrimaryGeneratorGun1::PrimaryGeneratorGun1

(

)

Definition at line 47 of file PrimaryGeneratorGun1.cc.

 : G4VUserPrimaryGeneratorAction(), fParticleGun(0)
{
  // default particle kinematic
  //
  G4int n_particle = 1;
  fParticleGun  = new G4ParticleGun(n_particle);
    
  G4ParticleDefinition* particle
           = G4ParticleTable::GetParticleTable()->FindParticle("geantino");
  fParticleGun->SetParticleDefinition(particle);
  fParticleGun->SetParticleEnergy(1*eV);          
  fParticleGun->SetParticlePosition(G4ThreeVector(0., 0., 0.));
}

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PrimaryGeneratorGun1::~PrimaryGeneratorGun1

(

)

Definition at line 64 of file PrimaryGeneratorGun1.cc.

{
  delete fParticleGun;  
}

Member Function Documentation

void PrimaryGeneratorGun1::GeneratePrimaries ( G4Event *  anEvent )

virtual

Implements G4VUserPrimaryGeneratorAction.

Definition at line 71 of file PrimaryGeneratorGun1.cc.

{
    //this function is called at the begining of event
    //
    //distribution uniform in solid angle
    //
    G4double cosTheta = 2*G4UniformRand() - 1., phi = twopi*G4UniformRand();
    G4double sinTheta = std::sqrt(1. - cosTheta*cosTheta);
    G4double ux = sinTheta*std::cos(phi),
             uy = sinTheta*std::sin(phi),
             uz = cosTheta;

    fParticleGun->SetParticleMomentumDirection(G4ThreeVector(ux,uy,uz));
    fParticleGun->GeneratePrimaryVertex(anEvent);
}

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

• source/geant4.10.03.p03/examples/extended/eventgenerator/GunGPS/include/PrimaryGeneratorGun1.hh
• source/geant4.10.03.p03/examples/extended/eventgenerator/GunGPS/src/PrimaryGeneratorGun1.cc