B4PrimaryGeneratorAction Class Reference

#include <B4PrimaryGeneratorAction.hh>

Inheritance diagram for B4PrimaryGeneratorAction:

Public Member Functions
	B4PrimaryGeneratorAction ()
virtual	~B4PrimaryGeneratorAction ()
virtual void	GeneratePrimaries (G4Event *event)
void	SetRandomFlag (G4bool value)
	B4PrimaryGeneratorAction ()
virtual	~B4PrimaryGeneratorAction ()
virtual void	GeneratePrimaries (G4Event *event)
void	SetRandomFlag (G4bool value)
	B4PrimaryGeneratorAction ()
virtual	~B4PrimaryGeneratorAction ()
virtual void	GeneratePrimaries (G4Event *event)
void	SetRandomFlag (G4bool value)
	B4PrimaryGeneratorAction ()
virtual	~B4PrimaryGeneratorAction ()
virtual void	GeneratePrimaries (G4Event *event)
void	SetRandomFlag (G4bool value)
Public Member Functions inherited from G4VUserPrimaryGeneratorAction
	G4VUserPrimaryGeneratorAction ()
virtual	~G4VUserPrimaryGeneratorAction ()

Detailed Description

The primary generator action class with particle gum.

It defines a single particle which hits the calorimeter perpendicular to the input face. The type of the particle can be changed via the G4 build-in commands of G4ParticleGun class (see the macros provided with this example).

Definition at line 47 of file B4a/include/B4PrimaryGeneratorAction.hh.

Constructor & Destructor Documentation

B4PrimaryGeneratorAction::B4PrimaryGeneratorAction

(

)

Definition at line 46 of file B4a/src/B4PrimaryGeneratorAction.cc.

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

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

  // default particle kinematic
  //
  G4ParticleDefinition* particleDefinition 
    = G4ParticleTable::GetParticleTable()->FindParticle("e-");
  fParticleGun->SetParticleDefinition(particleDefinition);
  fParticleGun->SetParticleMomentumDirection(G4ThreeVector(0.,0.,1.));
  fParticleGun->SetParticleEnergy(50.*MeV);
}

B4PrimaryGeneratorAction::~B4PrimaryGeneratorAction ( )

virtual

Definition at line 64 of file B4a/src/B4PrimaryGeneratorAction.cc.

{
  delete fParticleGun;
}

B4PrimaryGeneratorAction::B4PrimaryGeneratorAction

(

)

virtual B4PrimaryGeneratorAction::~B4PrimaryGeneratorAction ( )

virtual

B4PrimaryGeneratorAction::B4PrimaryGeneratorAction

(

)

virtual B4PrimaryGeneratorAction::~B4PrimaryGeneratorAction ( )

virtual

B4PrimaryGeneratorAction::B4PrimaryGeneratorAction

(

)

virtual B4PrimaryGeneratorAction::~B4PrimaryGeneratorAction ( )

virtual

Member Function Documentation

void B4PrimaryGeneratorAction::GeneratePrimaries ( G4Event *  event )

virtual

Implements G4VUserPrimaryGeneratorAction.

Definition at line 71 of file B4a/src/B4PrimaryGeneratorAction.cc.

References G4endl, G4Exception(), G4ParticleGun::GeneratePrimaryVertex(), G4LogicalVolumeStore::GetInstance(), G4LogicalVolume::GetSolid(), G4LogicalVolumeStore::GetVolume(), G4Box::GetZHalfLength(), JustWarning, and G4VPrimaryGenerator::SetParticlePosition().

{
  // This function is called at the begining of event

  // In order to avoid dependence of PrimaryGeneratorAction
  // on DetectorConstruction class we get world volume
  // from G4LogicalVolumeStore
  //
  G4double worldZHalfLength = 0;
  G4LogicalVolume* worlLV
    = G4LogicalVolumeStore::GetInstance()->GetVolume("World");
  G4Box* worldBox = 0;
  if ( worlLV) worldBox = dynamic_cast< G4Box*>(worlLV->GetSolid()); 
  if ( worldBox ) {
    worldZHalfLength = worldBox->GetZHalfLength();  
  }
  else  {
    G4ExceptionDescription msg;
    msg << "World volume of box not found." << G4endl;
    msg << "Perhaps you have changed geometry." << G4endl;
    msg << "The gun will be place in the center.";
    G4Exception("B4PrimaryGeneratorAction::GeneratePrimaries()",
      "MyCode0002", JustWarning, msg);
  } 
  
  // Set gun position
  fParticleGun
    ->SetParticlePosition(G4ThreeVector(0., 0., -worldZHalfLength));

  fParticleGun->GeneratePrimaryVertex(anEvent);
}

virtual void B4PrimaryGeneratorAction::GeneratePrimaries ( G4Event *  event )

virtual

Implements G4VUserPrimaryGeneratorAction.

virtual void B4PrimaryGeneratorAction::GeneratePrimaries ( G4Event *  event )

virtual

Implements G4VUserPrimaryGeneratorAction.

virtual void B4PrimaryGeneratorAction::GeneratePrimaries ( G4Event *  event )

virtual

Implements G4VUserPrimaryGeneratorAction.

void B4PrimaryGeneratorAction::SetRandomFlag

(

G4bool

value

)

void B4PrimaryGeneratorAction::SetRandomFlag

(

G4bool

value

)

void B4PrimaryGeneratorAction::SetRandomFlag

(

G4bool

value

)

void B4PrimaryGeneratorAction::SetRandomFlag

(

G4bool

value

)

---

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

• B4a/include/B4PrimaryGeneratorAction.hh
• B4a/src/B4PrimaryGeneratorAction.cc