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This commit is contained in:
Gabriele Cosmo
2020-12-04 12:30:43 +01:00
parent 67ba86d073
commit dab42d2018
3770 changed files with 226369 additions and 286486 deletions
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examples/extended/optical/OpNovice2/src/PrimaryGeneratorAction.cc
+65 -30
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@@ -32,38 +32,43 @@
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
#include "PrimaryGeneratorAction.hh"
#include "PrimaryGeneratorMessenger.hh"
#include "Randomize.hh"
#include "G4Event.hh"
#include "G4OpticalPhoton.hh"
#include "G4ParticleGun.hh"
#include "G4ParticleTable.hh"
#include "G4ParticleDefinition.hh"
#include "G4SystemOfUnits.hh"
#include "Randomize.hh"
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
PrimaryGeneratorAction::PrimaryGeneratorAction()
: G4VUserPrimaryGeneratorAction(),
fParticleGun(0)
: G4VUserPrimaryGeneratorAction()
, fParticleGun(0)
{
G4int n_particle = 1;
fParticleGun = new G4ParticleGun(n_particle);
fParticleGun = new G4ParticleGun(n_particle);
//create a messenger for this class
// create a messenger for this class
fGunMessenger = new PrimaryGeneratorMessenger(this);
//default kinematic
fRandomDirection = false;
fPolarized = false;
fPolarization = 0.;
// default kinematic
//
G4ParticleTable* particleTable = G4ParticleTable::GetParticleTable();
G4ParticleDefinition* particle = particleTable->FindParticle("e+");
fParticleGun->SetParticleDefinition(particle);
fParticleGun->SetParticleTime(0.0*ns);
fParticleGun->SetParticlePosition(G4ThreeVector(0.0*cm,0.0*cm,0.0*cm));
fParticleGun->SetParticleMomentumDirection(G4ThreeVector(1.,0.,0.));
fParticleGun->SetParticleEnergy(500.0*keV);
fParticleGun->SetParticleTime(0.0 * ns);
fParticleGun->SetParticlePosition(
G4ThreeVector(0.0 * cm, 0.0 * cm, 0.0 * cm));
fParticleGun->SetParticleMomentumDirection(G4ThreeVector(1., 0., 0.));
fParticleGun->SetParticleEnergy(500.0 * keV);
}
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
@@ -78,6 +83,24 @@ PrimaryGeneratorAction::~PrimaryGeneratorAction()
void PrimaryGeneratorAction::GeneratePrimaries(G4Event* anEvent)
{
if(fRandomDirection)
{
G4double theta = CLHEP::halfpi * G4UniformRand();
G4double phi = CLHEP::twopi * G4UniformRand();
G4double x = std::cos(theta);
G4double y = std::sin(theta) * std::sin(phi);
G4double z = std::sin(theta) * std::cos(phi);
G4ThreeVector dir(x, y, z);
fParticleGun->SetParticleMomentumDirection(dir);
}
if(fParticleGun->GetParticleDefinition() ==
G4OpticalPhoton::OpticalPhotonDefinition())
{
if(fPolarized)
SetOptPhotonPolar(fPolarization);
else
SetOptPhotonPolar();
}
fParticleGun->GeneratePrimaryVertex(anEvent);
}
@@ -85,32 +108,44 @@ void PrimaryGeneratorAction::GeneratePrimaries(G4Event* anEvent)
void PrimaryGeneratorAction::SetOptPhotonPolar()
{
G4double angle = G4UniformRand() * 360.0*deg;
SetOptPhotonPolar(angle);
G4double angle = G4UniformRand() * 360.0 * deg;
SetOptPhotonPolar(angle);
}
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
void PrimaryGeneratorAction::SetOptPhotonPolar(G4double angle)
{
if (fParticleGun->GetParticleDefinition()->GetParticleName()!="opticalphoton")
{
G4cout << "--> warning from PrimaryGeneratorAction::SetOptPhotonPolar() :"
"the particleGun is not an opticalphoton" << G4endl;
return;
}
if(fParticleGun->GetParticleDefinition() !=
G4OpticalPhoton::OpticalPhotonDefinition())
{
G4ExceptionDescription ed;
ed << "The particleGun is not an opticalphoton.";
G4Exception("PrimaryGeneratorAction::SetOptPhotonPolar", "OpNovice2_004",
JustWarning, ed);
return;
}
G4ThreeVector normal (1., 0., 0.);
G4ThreeVector kphoton = fParticleGun->GetParticleMomentumDirection();
G4ThreeVector product = normal.cross(kphoton);
G4double modul2 = product*product;
G4ThreeVector e_perpend (0., 0., 1.);
if (modul2 > 0.) e_perpend = (1./std::sqrt(modul2))*product;
G4ThreeVector e_paralle = e_perpend.cross(kphoton);
G4ThreeVector polar = std::cos(angle)*e_paralle + std::sin(angle)*e_perpend;
fParticleGun->SetParticlePolarization(polar);
fPolarized = true;
fPolarization = angle;
G4ThreeVector normal(1., 0., 0.);
G4ThreeVector kphoton = fParticleGun->GetParticleMomentumDirection();
G4ThreeVector product = normal.cross(kphoton);
G4double modul2 = product * product;
G4ThreeVector e_perpend(0., 0., 1.);
if(modul2 > 0.)
e_perpend = (1. / std::sqrt(modul2)) * product;
G4ThreeVector e_paralle = e_perpend.cross(kphoton);
G4ThreeVector polar =
std::cos(angle) * e_paralle + std::sin(angle) * e_perpend;
fParticleGun->SetParticlePolarization(polar);
}
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
void PrimaryGeneratorAction::SetRandomDirection(G4bool val)
{
fRandomDirection = val;
}