G4ThreeVector BIPrimaryGeneratorAction::GetParVec(G4double limit)
{
G4double theta = acos(1. - G4UniformRand() * (1. - cos(limit)));
G4double phi = G4UniformRand() * 2. * CLHEP::pi;
G4double vx = sin(theta) * cos(phi);
G4double vy = sin(theta) * sin(phi);
G4double vz = cos(theta);
G4ThreeVector particleVec = G4ThreeVector(vx, vy, vz);
return particleVec;
}
void BIPrimaryGeneratorAction::FirstBeamGun()
{
G4AutoLock lock(&mutexInPGA);
fEnergy = fEneFnc->GetRandom() * MeV;
lock.unlock();
//G4double x = (G4UniformRand() * 12.5 - 6.25)*mm;
G4double x = (G4UniformRand() * 12.5 - 6.25) * 1.41421356*mm;
G4double y = (G4UniformRand() * 48.75 - 24.375)*mm;
fParticleGun->SetParticlePosition(G4ThreeVector(x, y, fZPosition));
}
// Primary event
void PrimaryGeneratorAction::GeneratePrimaries(G4Event* anEvent)
{
/*
* To avoid dependence on Detector Construction we will get an envelope volume
* from the G4LogicalVolumeStore
*
* Here we will be assuming our box is sitting in a world where the radiation flux
* is coming from the -x direction. Thus we will have a uniform random start location
* through the YZ plane
*/
G4double envSizeX = 0.;
G4double envSizeYZ = 0.;
if ( !EnvelopeBox )
{
G4LogicalVolume* envLV = G4LogicalVolumeStore::GetInstance() -> GetVolume("World");
if ( envLV ) EnvelopeBox = dynamic_cast<G4Box*>( envLV -> GetSolid() );
}
if ( EnvelopeBox )
{
envSizeYZ = EnvelopeBox -> GetYHalfLength() *2.;
envSizeX = EnvelopeBox -> GetXHalfLength() *2.;
}
else
{
G4ExceptionDescription msg;
msg << "World volume of box shape is not found.\n";
msg << "Perhaps you have changed the geometry.\n";
msg << "\nWhere has the world gone?";
G4Exception("PrimaryGeneratorAction::GeneratePrimaries()","Mycode0001",JustWarning,msg);
}
// We won't use the outer 10% edge
G4double size = 0.9;
// Since we are starting in the -x direction and firing in the x direction we want the
// particles to come uniformly out of the YZ plane
G4double x0 = 0.5 * envSizeX;
G4double y0 = size * envSizeYZ * (G4UniformRand() - 0.5);
G4double z0 = size * envSizeYZ * (G4UniformRand() - 0.5);
particleGun -> SetParticlePosition(G4ThreeVector(-x0,y0,z0));
//particleGun -> SetParticleMomentumDirection(G4ThreeVector(1.0,0.,0.)); // Pure x momentum
particleGun -> GeneratePrimaryVertex(anEvent); // creates the initial momentum
}
void BIPrimaryGeneratorAction::ThirdBeamGun()
{
G4AutoLock lock(&mutexInPGA);
fEnergy = fEneFnc->GetRandom() * MeV;
lock.unlock();
G4double theta;
if(fEnergy > 30.*MeV){
lock.lock();
theta = fAngFnc->GetRandom() * deg;
lock.unlock();
}
else
theta = acos(1. - G4UniformRand() * (1. - cos(20.*deg)));
G4double phi = G4UniformRand() * fPhiLimit;
G4double vx = sin(theta) * cos(phi);
G4double vy = sin(theta) * sin(phi);
G4double vz = cos(theta);
fParVec = G4ThreeVector(vx, vy, vz);
fParticleGun->SetParticleMomentumDirection(fParVec);
}
void GSMS::Digitizer::Digitize() {
m_coll = new DigitsCollection("GSMSDigitizer", "DigitsCollection");
G4DigiManager* digiMan = G4DigiManager::GetDMpointer();
G4int hCollID = digiMan->GetHitsCollectionID("eDep");
G4THitsMap<G4double>* evtMap = NULL;
evtMap = (G4THitsMap<G4double>*)(digiMan->GetHitsCollection(hCollID));
if(!evtMap) return;
std::map<G4int, G4double*>::iterator itr = evtMap->GetMap()->begin();
for(; itr != evtMap->GetMap()->end(); itr++) {
G4double eneDep = *(itr->second);
G4double eneChan = 0;
// if (eneChan > 10.)
// {
double dResCs137 = 0.085;//ResolutionScale;
G4double dResA = std::sqrt(0.662)*dResCs137;
double dRes = dResA/std::sqrt(eneDep);//ResolutionScale;
G4double sigma = dRes*eneDep/2.355;
// std::cerr << "Mean: " << eneDep << ", Sigma: " << sigma << ", Res: " << dRes;
eneChan = G4RandGauss::shoot(eneDep,sigma) / 3 * 1024;
// std::cerr << ", Value: " << eneChan << std::endl;
// }
// else
// {
// eneChan = G4int(G4Poisson(eneChan));
// };
// std::cerr << ", Channel: " << eneChan;
G4double time = G4UniformRand() * (m_etime - m_stime);
if(eneChan >= m_dnu)
{
Digi* digi = new Digi;
digi->set_time(time);
digi->set_channel(int(eneChan));
digi->set_ene(eneDep);
m_coll->insert(digi);
}
}
StoreDigiCollection(m_coll);
}
void BIPrimaryGeneratorAction::SecondBeamGun()
{
G4double x, y;
fHisSource->GetRandom2(x, y);
fEnergy = pow(10., (y - 152.) / fDy) * 20 * MeV;
G4double theta = CLHEP::pi * ((x - 78.) / fDx) / 180.;
G4double phi = G4UniformRand() * fPhiLimit;
G4double vx = sin(theta) * cos(phi);
G4double vy = sin(theta) * sin(phi);
G4double vz = cos(theta);
fParVec = G4ThreeVector(vx, vy, vz);
fParticleGun->SetParticleMomentumDirection(fParVec);
}
G4ThreeVector BIPrimaryGeneratorAction::GetParVecEne()
{
G4double x, y;
while(1){// HisSource should be changed start with 0
fHisSource->GetRandom2(x, y);
if(x >= 78) break;
}
fEnergy = pow(10., (y - 152.) / fDy) * 20;
G4double theta = CLHEP::pi * ((x - 78.) / fDx) / 180.;
G4double phi = G4UniformRand() * 2. * CLHEP::pi;
G4double vx = sin(theta) * cos(phi);
G4double vy = sin(theta) * sin(phi);
G4double vz = cos(theta);
G4ThreeVector particleVec = G4ThreeVector(vx, vy, vz);
return particleVec;
}
int AddSmallCons(G4double dist, G4double density, G4LogicalVolume* motherLogical, int level) {
G4double dTheta = THETA_DIST_FACTOR * 2 * asin(SMALL_CONS_R / dist) * mm; /* Theta distance between adjacent cons */
const G4double SMALL_CONS_R = 25; /* Radius of the samll cons */
int cnt = 0;
for(G4double theta = dTheta; theta + dTheta < M_PI; theta += dTheta) { // theta is between [0, Pi]
G4double dPhi = PHI_DIST_FACTOR * 2 * asin(SMALL_CONS_R / (dist * sin(theta))); /* Phi distance between adjacent spheres */
for (G4double phi = dPhi; 2 * phi + dPhi < M_PI; phi += dPhi ) // phi is between [0, Pi/2]
if (density == 1.0 || G4UniformRand() <= density)
{
/* Cons from the outer layers will have bigger radius */
G4Cons* smallCons = new G4Cons("", 0 * mm, SMALL_CONS_R * mm, 0 * mm, 0.1 * mm, 50 * level * mm, 0 * deg, 360 * deg);
/* Calculate the new center of the cons */
G4ThreeVector v(dist * sin(theta) * cos(phi) * mm, dist * sin(theta) * sin(phi) * mm, dist * cos(theta) * mm);
G4RotationMatrix* rot = new G4RotationMatrix();
G4double alfa = v.angle(G4ThreeVector(0, 0, 1));
rot->rotateY(M_PI-v.theta()/*(M_PI-alfa) * rad*/);
rot->rotateX(-v.phi());
G4LogicalVolume* logicSmallCons = new G4LogicalVolume(smallCons, Air, "", 0, 0, 0);
G4PVPlacement* physiSmallCons = new G4PVPlacement(0, v, logicSmallCons, "", motherLogical, false, 0, false);
//assert(physiSmallCons->CheckOverlaps());
cnt++;
}
}
return cnt;
}
G4VParticleChange*
RichG4Cerenkov::PostStepDoIt(const G4Track& aTrack, const G4Step& aStep){
// Do not do RICH stuff
// return G4Cerenkov::PostStepDoIt(aTrack,aStep);
// Get the current point
G4Material &material=*aTrack.GetMaterial();
if(!(material.GetName()==aerogel_name) &&
!(material.GetName()==naf_name))
return G4Cerenkov::PostStepDoIt(aTrack,aStep);
// This is a RICH radiator, use the tools already available to compute everything
// Copy and paste of original G4Cerenkov class
aParticleChange.Initialize(aTrack);
const G4DynamicParticle* aParticle = aTrack.GetDynamicParticle();
const G4Material* aMaterial = aTrack.GetMaterial();
G4StepPoint* pPreStepPoint = aStep.GetPreStepPoint();
G4StepPoint* pPostStepPoint = aStep.GetPostStepPoint();
if(!aParticle || !aMaterial || !pPreStepPoint || !pPostStepPoint)return pParticleChange;
G4ThreeVector x0 = pPreStepPoint->GetPosition();
G4ThreeVector p0 = aStep.GetDeltaPosition().unit();
G4double t0 = pPreStepPoint->GetGlobalTime();
G4MaterialPropertiesTable* aMaterialPropertiesTable =
aMaterial->GetMaterialPropertiesTable();
if (!aMaterialPropertiesTable) return pParticleChange;
const G4MaterialPropertyVector* Rindex =
aMaterialPropertiesTable->GetProperty("RINDEX");
if (!Rindex) return pParticleChange;
// particle charge
const G4double charge = aParticle->GetDefinition()->GetPDGCharge();
// particle beta
const G4double beta = (pPreStepPoint ->GetBeta() +
pPostStepPoint->GetBeta())/2.;
G4double step_length = aStep.GetStepLength();
G4double MeanNumberOfPhotons=GetAverageNumberOfPhotons(charge,beta,step_length/cm,x0,p0);
// Copy and paste from the original function
if (MeanNumberOfPhotons <= 0.0) {
// return unchanged particle and no secondaries
aParticleChange.SetNumberOfSecondaries(0);
return pParticleChange;
}
MeanNumberOfPhotons *= step_length;
G4int NumPhotons = (G4int) G4Poisson(MeanNumberOfPhotons);
if (NumPhotons <= 0) {
// return unchanged particle and no secondaries
aParticleChange.SetNumberOfSecondaries(0);
return pParticleChange;
}
////////////////////////////////////////////////////////////////
aParticleChange.SetNumberOfSecondaries(NumPhotons);
if (fTrackSecondariesFirst) {
if (aTrack.GetTrackStatus() == fAlive )
aParticleChange.ProposeTrackStatus(fSuspend);
}
////////////////////////////////////////////////////////////////
G4double BetaInverse = 1./beta;
for (G4int i = 0; i < NumPhotons; i++) {
G4double sampledEnergy, sampledRI;
G4double cosTheta, sin2Theta;
geant _RINDEX;
geant _p;
_p=getmomentum_(&_RINDEX); // _p is in GeV/c, _RINDEX is the refractive index for this guy
sampledEnergy=_p*GeV; // energy in G4 units
sampledRI=_RINDEX;
cosTheta = BetaInverse / sampledRI;
sin2Theta = (1.0 - cosTheta)*(1.0 + cosTheta);
// Generate random position of photon on cone surface
// defined by Theta
G4double rand = G4UniformRand();
G4double phi = twopi*rand;
G4double sinPhi = sin(phi);
G4double cosPhi = cos(phi);
// calculate x,y, and z components of photon energy
// (in coord system with primary particle direction
// aligned with the z axis)
G4double sinTheta = sqrt(sin2Theta);
G4double px = sinTheta*cosPhi;
G4double py = sinTheta*sinPhi;
G4double pz = cosTheta;
// Create photon momentum direction vector
// The momentum direction is still with respect
// to the coordinate system where the primary
// particle direction is aligned with the z axis
G4ParticleMomentum photonMomentum(px, py, pz);
// Rotate momentum direction back to global reference
// system
photonMomentum.rotateUz(p0);
// Determine polarization of new photon
G4double sx = cosTheta*cosPhi;
G4double sy = cosTheta*sinPhi;
G4double sz = -sinTheta;
G4ThreeVector photonPolarization(sx, sy, sz);
// Rotate back to original coord system
photonPolarization.rotateUz(p0);
// Generate a new photon:
G4DynamicParticle* aCerenkovPhoton =
new G4DynamicParticle(G4OpticalPhoton::OpticalPhoton(),
photonMomentum);
aCerenkovPhoton->SetPolarization
(photonPolarization.x(),
photonPolarization.y(),
photonPolarization.z());
aCerenkovPhoton->SetKineticEnergy(sampledEnergy);
rand = G4UniformRand();
G4double delta=rand*aStep.GetStepLength();
G4double deltaTime = delta /
((pPreStepPoint->GetVelocity()+
pPostStepPoint->GetVelocity())/2.);
G4double aSecondaryTime = t0 + deltaTime;
G4ThreeVector aSecondaryPosition = x0 + rand * aStep.GetDeltaPosition();
G4Track* aSecondaryTrack = new G4Track(aCerenkovPhoton,aSecondaryTime,aSecondaryPosition);
aSecondaryTrack->SetTouchableHandle(aStep.GetPreStepPoint()->GetTouchableHandle());
aSecondaryTrack->SetParentID(aTrack.GetTrackID());
aParticleChange.AddSecondary(aSecondaryTrack);
}
if (verboseLevel>0) {
G4cout << "\n Exiting from RichG4Cerenkov::DoIt -- NumberOfSecondaries = "
<< aParticleChange.GetNumberOfSecondaries() << G4endl;
}
return pParticleChange;
}
G4VParticleChange*
RichG4OpBoundaryProcess::PostStepDoIt(const G4Track& aTrack, const G4Step& aStep)
{
// I do not know where these guys come, but I kill them explicitly
if(isnan(aTrack.GetPosition()[0]) || isnan(aTrack.GetMomentum()[0])){
aParticleChange.ProposeTrackStatus(fStopAndKill);
return G4VDiscreteProcess::PostStepDoIt(aTrack, aStep);
}
// Initialization
aParticleChange.Initialize(aTrack);
// Get the properties of the particle
const G4DynamicParticle* aParticle = aTrack.GetDynamicParticle();
G4double thePhotonMomentum = aParticle->GetTotalMomentum();
G4StepPoint* pPreStepPoint = aStep.GetPreStepPoint();
G4StepPoint* pPostStepPoint = aStep.GetPostStepPoint();
if(isnan(pPreStepPoint->GetPosition()[0])){
aParticleChange.ProposeTrackStatus(fStopAndKill);
return G4VDiscreteProcess::PostStepDoIt(aTrack, aStep);
}
if (pPostStepPoint->GetStepStatus() != fGeomBoundary){
return G4VDiscreteProcess::PostStepDoIt(aTrack, aStep);
}
if (aTrack.GetStepLength()<=1e-7){
return G4VDiscreteProcess::PostStepDoIt(aTrack, aStep);
}
G4Material *Material1 = pPreStepPoint -> GetMaterial();
G4Material *Material2 = pPostStepPoint -> GetMaterial();
// Follow the standard path if not RICH radiator to vacuum transition
if(!(Material1->GetName()==aerogel_name))
return G4OpBoundaryProcess::PostStepDoIt(aTrack,aStep);
// return TOFG4OpBoundaryProcess::PostStepDoIt(aTrack,aStep);
if(Material2->GetName()==aerogel_name)
return G4OpBoundaryProcess::PostStepDoIt(aTrack,aStep);
// return TOFG4OpBoundaryProcess::PostStepDoIt(aTrack,aStep);
if(!Material1->GetMaterialPropertiesTable() ||
!Material2->GetMaterialPropertiesTable()){
aParticleChange.ProposeTrackStatus(fStopAndKill);
return G4VDiscreteProcess::PostStepDoIt(aTrack, aStep);
}
OldMomentum = aParticle->GetMomentumDirection();
OldPolarization = aParticle->GetPolarization();
// Get the normal of the surface
G4ThreeVector theGlobalPoint = pPostStepPoint->GetPosition();
G4Navigator* theNavigator =
G4TransportationManager::GetTransportationManager()->
GetNavigatorForTracking();
G4ThreeVector theLocalPoint = theNavigator->
GetGlobalToLocalTransform().
TransformPoint(theGlobalPoint);
G4ThreeVector theLocalNormal; // Normal points back into volume
G4bool valid;
theLocalNormal = theNavigator->GetLocalExitNormal(&valid);
if (valid) {
theLocalNormal = -theLocalNormal;
}
else {
aParticleChange.ProposeTrackStatus(fStopAndKill);
return G4VDiscreteProcess::PostStepDoIt(aTrack, aStep);
G4cerr << " RichG4OpBoundaryProcess/PostStepDoIt(): "
<< " The Navigator reports that it returned an invalid normal"
<< G4endl;
G4Exception("RichG4OpBoundaryProcess::PostStepDoIt",
"Invalid Surface Normal",
EventMustBeAborted,
"Geometry must return valid surface normal");
// return G4VDiscreteProcess::PostStepDoIt(aTrack, aStep);
}
theGlobalNormal = theNavigator->GetLocalToGlobalTransform().
TransformAxis(theLocalNormal);
if (OldMomentum * theGlobalNormal > 0.0) {
theGlobalNormal = -theGlobalNormal;
}
// Get the refractive index
G4ThreeVector position = aTrack.GetPosition();
const G4double cvpwl=1.2398E-6;
G4double wavelength=cvpwl/thePhotonMomentum*GeV;
Rindex1=RichRadiatorTileManager::get_refractive_index(position[0]/cm,position[1]/cm,wavelength);
G4MaterialPropertyVector* Rindex = Material2->GetMaterialPropertiesTable()->GetProperty("RINDEX");
if(!Rindex){
aParticleChange.ProposeTrackStatus(fStopAndKill);
return G4VDiscreteProcess::PostStepDoIt(aTrack, aStep);
}
#if G4VERSION_NUMBER >945
Rindex2 = Rindex->Value(thePhotonMomentum);
#else
Rindex2 = Rindex->GetProperty(thePhotonMomentum);
#endif
// SKIP photons exiting through the lateral sides of the tiles
if(std::abs(theGlobalNormal[2])<1e-6){
cout <<" g4rich::abs "<<std::abs(theGlobalNormal[2])<<" "<<abs(theGlobalNormal[2])<<" "<<theGlobalNormal[2]<<endl;
return G4OpBoundaryProcess::PostStepDoIt(aTrack,aStep);
}
// if(abs(theGlobalNormal[2])<1e-6) return TOFG4OpBoundaryProcess::PostStepDoIt(aTrack,aStep);
DielectricDielectric();
// return G4OpBoundaryProcess::PostStepDoIt(aTrack, aStep); //CJD this solves the f*****g problem
NewMomentum = NewMomentum.unit();
NewPolarization = NewPolarization.unit();
if(Material1->GetName()==aerogel_name){
// Simple parameterization to get the right number of p.e.
if(G4UniformRand()<RICHDB::scatloss){
aParticleChange.ProposeTrackStatus(fStopAndKill);
return G4VDiscreteProcess::PostStepDoIt(aTrack, aStep);
}
// Forward scattering
if(G4UniformRand()<RICHDB::scatprob){
// Aerogel scattering effect
double phi=2*M_PI*G4UniformRand();
double theta=sqrt(-2*log(G4UniformRand()))*RICHDB::scatang;
// Build the vector
G4ThreeVector direction(sin(theta)*cos(phi),sin(theta)*sin(phi),cos(theta));
direction.rotateUz(NewMomentum);
NewMomentum=direction.unit();
}
}
aParticleChange.ProposeMomentumDirection(NewMomentum);
aParticleChange.ProposePolarization(NewPolarization);
return G4VDiscreteProcess::PostStepDoIt(aTrack, aStep);
}
/*
// For using ROOT classes.
// When using ROOT classes, it have to be thread local or mutex locked.
// I don't know _G4MT_TLS_ is truely needed or not.
// https://indico.cern.ch/event/226961/material-old/0/0?contribId=0
// In case without, this code looks like working well...
G4ThreadLocal TF1 *fEneFnc_G4MT_TLS_ = 0;
*/
BIPrimaryGeneratorAction::BIPrimaryGeneratorAction(BeamType beamType, G4bool gridFlag, G4bool quarterFlag)
: G4VUserPrimaryGeneratorAction(),
fParticleGun(nullptr),
fInputFile(nullptr),
fHisSource(nullptr),
fEneFnc(nullptr),
fAngFnc(nullptr)
{
fBeamType = beamType;
fForGrid = gridFlag;
fUseQuarter = quarterFlag;
if(fUseQuarter) fPhiLimit = 0.5 * CLHEP::pi;
else fPhiLimit = 2. * CLHEP::pi;
fDx = (458. - 78.) / 15.;
fDy = (332 - 152) / (log10(60.) - log10(20.));
G4AutoLock lock(&mutexInPGA);
Int_t seed = G4UniformRand() * 1000000;
G4cout << "Seed of PGA = " << seed << G4endl;
gRandom->SetSeed(seed);
G4int nPar = 1;
fParticleGun = new G4ParticleGun(nPar);
fZPosition = -300.*mm;
//fZPosition = -160.*mm; // Minimum distance for new beam
fParVec = G4ThreeVector(0., 0., 1.);
G4ParticleTable *parTable = G4ParticleTable::GetParticleTable();
G4ParticleDefinition *proton = parTable->FindParticle("proton");
fParticleGun->SetParticleDefinition(proton);
fParticleGun->SetParticlePosition(G4ThreeVector(0., 0., fZPosition));
fParticleGun->SetParticleMomentumDirection(fParVec);
fParticleGun->SetParticleEnergy(fEnergy);
fInputFile = new TFile("randomSource.root", "OPEN");
fHisSource = (TH2D*)fInputFile->Get("HisMap");
fHisSource->SetName("fHisSource");
DefineCommands();
// Pointer of Function is not good for readable code?
// And also, use if statement does not make program slow.
if(fBeamType == kFirstBeam){
fEneFnc = new TF1("fncEne", "exp([0]*x)", 0., 100.);
fEneFnc->SetParameter(0, -4.77205e-02);
GunFuncPointer = &BIPrimaryGeneratorAction::FirstBeamGun;
}
else if(fBeamType == kSecondBeam)
GunFuncPointer = &BIPrimaryGeneratorAction::SecondBeamGun;
else if(fBeamType == kThirdBeam){
fEneFnc = new TF1("fncEne", "exp([0]*x)", 0., 100.);
fEneFnc->SetParameter(0, -4.77205e-02);
fAngFnc = new TF1("fAngFnc", "exp([0]*x)", 0., 20.);
fAngFnc->SetParameter(0, -8.98131e-02);
GunFuncPointer = &BIPrimaryGeneratorAction::ThirdBeamGun;
}
else{
G4cout << "Beam type is wrong. Please check it." << G4endl;
exit(0);
}
}