double ECHARM_distribution::GenerateNumberGauss(double Mean, double Sigma)
{
double GaussValue = 0.0;
double GaussTemp = 0.0;
double GaussTempX1 = 0.0;
double GaussTempX2 = 0.0;
if (fGaussFirstOk)
{
GaussValue = fGaussSecondValue;
fGaussFirstOk = 0;
}
else
{
do {
GaussTempX1 = 2.0 * drand48() - 1.0;
GaussTempX2 = 2.0 * drand48() - 1.0;
GaussTemp = GaussTempX1 * GaussTempX1 + GaussTempX2 * GaussTempX2;
} while ( GaussTemp >= 1.0 );
GaussTemp = fSquareRoot( (-2.0*log(GaussTemp))/GaussTemp);
GaussValue = GaussTempX1 * GaussTemp;
fGaussSecondValue = GaussTempX2 * GaussTemp;
fGaussFirstOk = 1;
}
return (Mean + GaussValue * Sigma);
}
double ECHARM_cell::FindPeriodReciprocal(int vIndex[3])
{
double double_temp = 0.0;
int i;
for(i=0;i<3;i++) double_temp += fSquare(vIndex[i]/fSize->GetComponent(i));
double_temp = fSquareRoot(double_temp)*2*M_PI;
return double_temp;
}
double ECHARM_cell::FindPeriodDirect(int vIndex[3])
{
double double_temp = 0.0;
int i;
for(i=0;i<3;i++) double_temp += fSquare(vIndex[i]/fSize->GetComponent(i));
double_temp = fSquareRoot(1/double_temp);
return double_temp;
}
void ECHARM_process_bethe_bloch::DoOnParticle(ECHARM_strip* strip,ECHARM_particle* part,ECHARM_info_save*){
fStdDev = fSquareRoot(ComputeMeanEnergyLoss(strip,part) * part->GetStepLength() * cElectronMass) * ComputeAvgElD(strip,part);
fDistr->SetPar(1,fStdDev);
double vMomVar = part->GetMom()->GetModule() - fDistr->GenerateNumber();
part->GetMom()->ScaleModule(vMomVar);
}
double ECHARM_distribution::GetValueGauss(double vX, double Mean, double Sigma)
{
double vValue = exp(-0.5*fSquare((vX-Mean)/(Sigma)))/(fSquareRoot(2.*M_PI)*Sigma);
return vValue;
}
double ECHARM_simulation_integration_averaged::GetAveragedDechannelingProbability()
{
double vDechannelingEnergy = 0.0;
double vValueATD = 0.;
double vValueELD = 0.;
double vDechProb = 0.0;
#ifdef ROOT_
std::string vHistoName = "hDechProb_prf" + GetStrip()->GetRadiusValueAsStringText() + "_" + GetStrip()->GetLengthValueAsStringText();
std::string vHistoNameATD = "hDechProbATD_prf" + GetStrip()->GetRadiusValueAsStringText() + "_" + GetStrip()->GetLengthValueAsStringText();
std::string vHistoNameELD = "hDechProbELD_prf" + GetStrip()->GetRadiusValueAsStringText() + "_" + GetStrip()->GetLengthValueAsStringText();
TH1F *hDechProb = new TH1F( vHistoName.c_str(),"hDechProb;Interplanar Distance [#AA]",GetIntegrationStepNumberPlanar(),0.,GetStrip()->GetCrystal()->GetDirectPeriodPlanar()/AA);
TH1F *hDechProbATD = new TH1F( vHistoNameATD.c_str(),"hDechProb;Interplanar Distance [#AA]",GetIntegrationStepNumberPlanar(),0.,GetStrip()->GetCrystal()->GetDirectPeriodPlanar()/AA);
TH1F *hDechProbELD = new TH1F( vHistoNameELD.c_str(),"hDechProb;Interplanar Distance [#AA]",GetIntegrationStepNumberPlanar(),0.,GetStrip()->GetCrystal()->GetDirectPeriodPlanar()/AA);
#endif
std::vector<double> vVectEff;
vVectEff.clear();
for(unsigned int i = 0; i < GetIntegrationStepNumberPlanar(); i++)
{
if(fPlanarEnergyToDechannel.at(i)==0.){
vValueELD = 1.;
vValueATD = 1.;
}
else{
if(fPlanarElectronDensity.at(i)!=0.0){
fMultipleScattering->SetCrossedMaterialLength( fPlanarElectronDensity.at(i) * GetStrip()->GetDimension()->GetZ() );
fMultipleScattering->UpdateElectronScatteringOutgoingDistribution();
vValueELD = (erfc(vDechannelingEnergy/(fSquareRoot(2.)*(fMultipleScattering->GetElectronScatteringOutgoingDistribution()->GetDistributionParameters().at(1)))));
}
if(fPlanarEnergyToDechannel.at(i)!=0.){
fMultipleScattering->SetCrossedMaterialLength( fPlanarAtomicDensity.at(i) * GetStrip()->GetDimension()->GetZ() );
fMultipleScattering->UpdateNuclearScatteringOutgoingDistribution();
vValueATD = (erfc(vDechannelingEnergy/(fSquareRoot(2.)*(fMultipleScattering->GetNuclearScatteringOutgoingDistribution()->GetDistributionParameters().at(1)))));
}
vDechannelingEnergy = fSquareRoot(2. * fPlanarEnergyToDechannel.at(i) * GetParticle()->GetMomentumVector()->GetZ() );
}
vVectEff.push_back(fSquareRoot(fSquare(vValueATD)+fSquare(vValueELD)) / fSquareRoot(2.));
vDechProb += vVectEff.at(i);
#ifdef ROOT_
hDechProbATD->SetBinContent(i+1,vValueATD);
hDechProbELD->SetBinContent(i+1,vValueELD);
hDechProb->SetBinContent(i+1,vVectEff.at(i));
#endif
}
// unsigned int vNumberOfResample = 3;
// unsigned int iTot = GetIntegrationStepNumberPlanar() * vNumberOfResample;
//
// double vValue = 0.;
// double x = 0.;
//
// for(unsigned int j = 0;j < iTot - 2 ;j++)
// {
// x = GetStrip()->GetDirectPeriodPlanar() / iTot * j;
// vValue = fInterpolationFunction->FindInterpolate1D(vVectEff.at(j),vVectEff.at(j+1),vVectEff.at(j+2),vVectEff.at(j+3),x);
// vDechProb += vValue;
// }
//
// x = GetStrip()->GetDirectPeriodPlanar() / iTot * (iTot - 2);
// vDechProb += fInterpolationFunction->FindInterpolate1D(vVectEff.at(iTot - 2),vVectEff.at(iTot - 1),vVectEff.at(iTot),vVectEff.at(0),x)
//
// x = GetStrip()->GetDirectPeriodPlanar() / iTot * (iTot - 1);
// vDechProb += fInterpolationFunction->FindInterpolate1D(vVectEff.at(iTot - 1),vVectEff.at(iTot),vVectEff.at(0),vVectEff.at(1),x)
vDechProb /= GetIntegrationStepNumberPlanar();
vDechProb -= 1.;
vDechProb *= (-1);
//std::cout << "ECHARM_simulation_integration_averaged: Efficiency = " << vDechProb*100 << " [%]" << std::endl;
return vDechProb;
}
double ComputeDistanceThreeVectors(ECHARM_threevector* X1,ECHARM_threevector* X2){
return fSquareRoot( (X1->GetX()-X2->GetX()) + (X1->GetY()-X2->GetY()) + (X1->GetZ()-X2->GetZ()));
}