PrimaryGeneratorAction Class Reference

#include <PrimaryGeneratorAction.hh>

Inheritance diagram for PrimaryGeneratorAction:

Public Member Functions
	PrimaryGeneratorAction (DetectorConstruction *)
	~PrimaryGeneratorAction () override
void	SetDefaultKinematic (G4int)
void	SetRndmBeam (G4double val)
void	GeneratePrimaries (G4Event *) override
G4ParticleGun *	GetParticleGun ()

Private Attributes
G4ParticleGun *	fParticleGun = nullptr
DetectorConstruction *	fDetector = nullptr
G4double	fRndmBeam = 0.
PrimaryGeneratorMessenger *	fGunMessenger = nullptr

Detailed Description

Definition at line 46 of file PrimaryGeneratorAction.hh.

Constructor & Destructor Documentation

PrimaryGeneratorAction()

PrimaryGeneratorAction::PrimaryGeneratorAction

(

DetectorConstruction *

det

)

Definition at line 47 of file PrimaryGeneratorAction.cc.

 :fDetector(det)
{
  fParticleGun  = new G4ParticleGun(1);
  SetDefaultKinematic(1);
    
  //create a messenger for this class
  fGunMessenger = new PrimaryGeneratorMessenger(this);  
}

~PrimaryGeneratorAction()

PrimaryGeneratorAction::~PrimaryGeneratorAction ( )

override

Definition at line 59 of file PrimaryGeneratorAction.cc.

{
  delete fParticleGun;
  delete fGunMessenger;  
}

Member Function Documentation

SetDefaultKinematic()

void PrimaryGeneratorAction::SetDefaultKinematic

(

G4int

front

)

Definition at line 67 of file PrimaryGeneratorAction.cc.

{
  G4ParticleDefinition* particle
           = G4ParticleTable::GetParticleTable()->FindParticle("e-");
  fParticleGun->SetParticleDefinition(particle);
  fParticleGun->SetParticleMomentumDirection(G4ThreeVector(1.,0.,0.));
  fParticleGun->SetParticleEnergy(100*MeV);
  G4double position = 0.*cm;
  if (front) position = -0.5*(fDetector->GetSize());
  fParticleGun->SetParticlePosition(G4ThreeVector(position,0.*cm,0.*cm));
}

SetRndmBeam()

void PrimaryGeneratorAction::SetRndmBeam ( G4double  val )

inline

Definition at line 54 of file PrimaryGeneratorAction.hh.

{fRndmBeam = val;}   

GeneratePrimaries()

void PrimaryGeneratorAction::GeneratePrimaries ( G4Event *  anEvent )

override

Definition at line 81 of file PrimaryGeneratorAction.cc.

{
  //this function is called at the begining of event
  //
  //randomize the beam, if requested.
  if (fRndmBeam > 0.) 
    {
      G4ThreeVector oldPosition = fParticleGun->GetParticlePosition();    
      G4double rbeam = 0.5*(fDetector->GetSize())*fRndmBeam;
      G4double x0 = oldPosition.x();
      G4double y0 = oldPosition.y() + (2*G4UniformRand()-1.)*rbeam;
      G4double z0 = oldPosition.z() + (2*G4UniformRand()-1.)*rbeam;
      fParticleGun->SetParticlePosition(G4ThreeVector(x0,y0,z0));
      fParticleGun->GeneratePrimaryVertex(anEvent);
      fParticleGun->SetParticlePosition(oldPosition);      
    }
  else  fParticleGun->GeneratePrimaryVertex(anEvent); 
}

GetParticleGun()

G4ParticleGun * PrimaryGeneratorAction::GetParticleGun ( )

inline

Definition at line 57 of file PrimaryGeneratorAction.hh.

{return fParticleGun;}

Member Data Documentation

fParticleGun

G4ParticleGun* PrimaryGeneratorAction::fParticleGun = nullptr

private

Definition at line 60 of file PrimaryGeneratorAction.hh.

fDetector

DetectorConstruction* PrimaryGeneratorAction::fDetector = nullptr

private

Definition at line 61 of file PrimaryGeneratorAction.hh.

fRndmBeam

G4double PrimaryGeneratorAction::fRndmBeam = 0.

private

Definition at line 62 of file PrimaryGeneratorAction.hh.

fGunMessenger

PrimaryGeneratorMessenger* PrimaryGeneratorAction::fGunMessenger = nullptr

private

Definition at line 63 of file PrimaryGeneratorAction.hh.

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

• extended/electromagnetic/TestEm1/include/PrimaryGeneratorAction.hh
• extended/electromagnetic/TestEm1/src/PrimaryGeneratorAction.cc