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This commit is contained in:
Gabriele Cosmo
2016-06-09 15:37:50 +02:00
parent a8e9364cea
commit 96c8bcd0af
6923 changed files with 198390 additions and 41849 deletions
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source/processes/electromagnetic/highenergy/src/G4AnnihiToMuPair.cc
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@@ -25,7 +25,7 @@
//
//
// $Id: G4AnnihiToMuPair.cc,v 1.3 2006/06/29 19:32:34 gunter Exp $
// GEANT4 tag $Name: geant4-09-00 $
// GEANT4 tag $Name: geant4-09-01 $
//
// ------------ G4AnnihiToMuPair physics process ------
// by H.Burkhardt, S. Kelner and R. Kokoulin, November 2002
source/processes/electromagnetic/highenergy/src/G4BetheBlochNoDeltaModel.cc
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@@ -24,7 +24,7 @@
// ********************************************************************
//
// $Id: G4BetheBlochNoDeltaModel.cc,v 1.3 2006/06/29 19:32:36 gunter Exp $
// GEANT4 tag $Name: geant4-09-00 $
// GEANT4 tag $Name: geant4-09-01 $
//
// -------------------------------------------------------------------
//
source/processes/electromagnetic/highenergy/src/G4BraggNoDeltaModel.cc
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@@ -24,7 +24,7 @@
// ********************************************************************
//
// $Id: G4BraggNoDeltaModel.cc,v 1.3 2006/06/29 19:32:38 gunter Exp $
// GEANT4 tag $Name: geant4-09-00 $
// GEANT4 tag $Name: geant4-09-01 $
//
// -------------------------------------------------------------------
//
source/processes/electromagnetic/highenergy/src/G4GammaConversionToMuons.cc
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@@ -25,7 +25,7 @@
//
//
// $Id: G4GammaConversionToMuons.cc,v 1.4 2006/06/29 19:32:40 gunter Exp $
// GEANT4 tag $Name: geant4-09-00 $
// GEANT4 tag $Name: geant4-09-01 $
//
// ------------ G4GammaConversionToMuons physics process ------
// by H.Burkhardt, S. Kelner and R. Kokoulin, April 2002
source/processes/electromagnetic/highenergy/src/G4eeCrossSections.cc
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@@ -24,7 +24,7 @@
// ********************************************************************
//
// $Id: G4eeCrossSections.cc,v 1.6 2006/06/29 19:32:42 gunter Exp $
// GEANT4 tag $Name: geant4-09-00 $
// GEANT4 tag $Name: geant4-09-01 $
//
// -------------------------------------------------------------------
//
source/processes/electromagnetic/highenergy/src/G4eeToHadrons.cc
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@@ -24,7 +24,7 @@
// ********************************************************************
//
// $Id: G4eeToHadrons.cc,v 1.7 2006/06/29 19:32:44 gunter Exp $
// GEANT4 tag $Name: geant4-09-00 $
// GEANT4 tag $Name: geant4-09-01 $
//
// -------------------------------------------------------------------
//
source/processes/electromagnetic/highenergy/src/G4eeToHadronsModel.cc
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@@ -24,7 +24,7 @@
// ********************************************************************
//
// $Id: G4eeToHadronsModel.cc,v 1.8 2007/05/22 17:37:30 vnivanch Exp $
// GEANT4 tag $Name: geant4-09-00 $
// GEANT4 tag $Name: geant4-09-01 $
//
// -------------------------------------------------------------------
//
source/processes/electromagnetic/highenergy/src/G4eeToHadronsMultiModel.cc
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@@ -24,7 +24,7 @@
// ********************************************************************
//
// $Id: G4eeToHadronsMultiModel.cc,v 1.4 2007/05/23 08:50:41 vnivanch Exp $
// GEANT4 tag $Name: geant4-09-00 $
// GEANT4 tag $Name: geant4-09-01 $
//
// -------------------------------------------------------------------
//
source/processes/electromagnetic/highenergy/src/G4eeToTwoPiModel.cc
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@@ -24,7 +24,7 @@
// ********************************************************************
//
// $Id: G4eeToTwoPiModel.cc,v 1.5 2007/05/22 17:37:30 vnivanch Exp $
// GEANT4 tag $Name: geant4-09-00 $
// GEANT4 tag $Name: geant4-09-01 $
//
// -------------------------------------------------------------------
//
source/processes/electromagnetic/highenergy/src/G4hhIonisation.cc
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@@ -24,7 +24,7 @@
// ********************************************************************
//
// $Id: G4hhIonisation.cc,v 1.6 2007/05/22 17:37:30 vnivanch Exp $
// GEANT4 tag $Name: geant4-09-00 $
// GEANT4 tag $Name: geant4-09-01 $
//
// -------------------------------------------------------------------
//
source/processes/electromagnetic/highenergy/src/G4mplIonisation.cc
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@@ -24,7 +24,7 @@
// ********************************************************************
//
// $Id: G4mplIonisation.cc,v 1.5 2007/05/31 11:13:31 vnivanch Exp $
// GEANT4 tag $Name: geant4-09-00 $
// GEANT4 tag $Name: geant4-09-01 $
//
// -------------------------------------------------------------------
//
source/processes/electromagnetic/highenergy/src/G4mplIonisationModel.cc
+73 -56
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@@ -23,8 +23,8 @@
// * acceptance of all terms of the Geant4 Software license. *
// ********************************************************************
//
// $Id: G4mplIonisationModel.cc,v 1.3 2006/12/13 15:44:27 gunter Exp $
// GEANT4 tag $Name: geant4-09-00 $
// $Id: G4mplIonisationModel.cc,v 1.5 2007/11/13 18:36:29 vnivanch Exp $
// GEANT4 tag $Name: geant4-09-01 $
//
// -------------------------------------------------------------------
//
@@ -38,10 +38,17 @@
// Creation date: 06.09.2005
//
// Modifications:
// 12.08.2007 Changing low energy approximation and extrapolation.
// Small bug fixing and refactoring (M. Vladymyrov)
// 13.11.2007 Use low-energy asymptotic from [3] (V.Ivanchenko)
//
//
// -------------------------------------------------------------------
//
// References
// [1] Steven P. Ahlen: Energy loss of relativistic heavy ionizing particles,
// S.P. Ahlen, Rev. Mod. Phys 52(1980), p121
// [2] K.A. Milton arXiv:hep-ex/0602040
// [3] S.P. Ahlen and K. Kinoshita, Phys. Rev. D26 (1982) 2347
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
@@ -56,21 +63,21 @@
using namespace std;
G4mplIonisationModel::G4mplIonisationModel(G4double mCharge,
const G4String& nam)
G4mplIonisationModel::G4mplIonisationModel(G4double mCharge, const G4String& nam)
: G4VEmModel(nam),G4VEmFluctuationModel(nam),
magCharge(mCharge),
twoln10(2.0*log(10.0)),
beta2low(0.0001),
beta2lim(0.01),
twoln10(log(100.0)),
betalow(0.01),
betalim(0.1),
beta2lim(betalim*betalim),
bg2lim(beta2lim*(1.0 + beta2lim))
{
nmpl = G4int(abs(magCharge)/68.0);
nmpl = G4int(abs(magCharge) * 2 * fine_structure_const + 0.5);
if(nmpl > 6) nmpl = 6;
else if(nmpl < 1) nmpl = 1;
G4double x = 45.0*GeV*G4double(nmpl)/cm;
factlow = x*x;
chargeSquare = magCharge*magCharge;
pi_hbarc2_over_mc2 = pi * hbarc * hbarc / electron_mass_c2;
chargeSquare = magCharge * magCharge;
dedxlim = 45.*nmpl*nmpl*GeV*cm2/g;
}
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
@@ -99,60 +106,74 @@ G4double G4mplIonisationModel::ComputeDEDXPerVolume(const G4Material* material,
G4double kineticEnergy,
G4double)
{
G4double tau = kineticEnergy/mass;
G4double tau = kineticEnergy / mass;
G4double gam = tau + 1.0;
G4double bg2 = tau * (tau+2.0);
G4double beta2 = bg2/(gam*gam);
G4double bg2 = tau * (tau + 2.0);
G4double beta2 = bg2 / (gam * gam);
G4double beta = sqrt(beta2);
G4double dedx0 = factlow*abs(beta2);
// low-energy asymptotic formula
G4double dedx = dedxlim*beta*material->GetDensity();
if(beta2 > beta2low) {
// above asymptotic
if(beta > betalow) {
G4double b2 = beta2;
if(beta2 < beta2lim) {
beta2= beta2lim;
bg2 = bg2lim;
// high energy
if(beta >= betalim) {
dedx = ComputeDEDXAhlen(material, bg2);
} else {
G4double dedx1 = dedxlim*betalow*material->GetDensity();
G4double dedx2 = ComputeDEDXAhlen(material, bg2lim);
// extrapolation between two formula
G4double kapa2 = beta - betalow;
G4double kapa1 = betalim - beta;
dedx = (kapa1*dedx1 + kapa2*dedx2)/(kapa1 + kapa2);
}
}
return dedx;
}
G4double eexc = material->GetIonisation()->GetMeanExcitationEnergy();
G4double cden = material->GetIonisation()->GetCdensity();
G4double mden = material->GetIonisation()->GetMdensity();
G4double aden = material->GetIonisation()->GetAdensity();
G4double x0den = material->GetIonisation()->GetX0density();
G4double x1den = material->GetIonisation()->GetX1density();
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
G4double eDensity = material->GetElectronDensity();
G4double G4mplIonisationModel::ComputeDEDXAhlen(const G4Material* material, G4double bg2)
{
G4double eDensity = material->GetElectronDensity();
G4double eexc = material->GetIonisation()->GetMeanExcitationEnergy();
G4double cden = material->GetIonisation()->GetCdensity();
G4double mden = material->GetIonisation()->GetMdensity();
G4double aden = material->GetIonisation()->GetAdensity();
G4double x0den = material->GetIonisation()->GetX0density();
G4double x1den = material->GetIonisation()->GetX1density();
G4double dedx = 2.0*log(2.0*electron_mass_c2*bg2/eexc) - 1.0;
// Ahlen's formula for nonconductors, [1]p157, f(5.7)
G4double dedx = log(2.0 * electron_mass_c2 * bg2 / eexc) - 0.5;
G4double k = 0.406;
if(nmpl > 1) k = 0.346;
const G4double B[7] = { 0.0, 0.248, 0.672, 1.022, 1.243, 1.464, 1.685};
// Kazama et al. cross-section correction
G4double k = 0.406;
if(nmpl > 1) k = 0.346;
dedx += k - B[nmpl];
// Bloch correction
const G4double B[7] = { 0.0, 0.248, 0.672, 1.022, 1.243, 1.464, 1.685};
// density correction
G4double x = log(bg2)/twoln10;
if ( x >= x0den ) {
dedx -= twoln10*x - cden ;
if ( x < x1den ) dedx -= aden*pow((x1den-x),mden) ;
}
dedx += 0.5 * k - B[nmpl];
// now compute the total ionization loss
if (dedx < 0.0) dedx = 0.0 ;
dedx *= twopi_mc2_rcl2*chargeSquare*eDensity;
// extrapolate between two formula
if(beta2 < beta2lim) {
x = log(dedx0) + log(dedx/dedx0)*log(b2/beta2low)/log(beta2lim/beta2low);
dedx = exp(x);
}
dedx0 = dedx;
// density effect correction
G4double deltam;
G4double x = log(bg2) / twoln10;
if ( x >= x0den ) {
deltam = twoln10 * x - cden;
if ( x < x1den ) deltam += aden * pow((x1den-x), mden);
dedx -= 0.5 * deltam;
}
return dedx0;
// now compute the total ionization loss
dedx *= pi_hbarc2_over_mc2 * eDensity * nmpl * nmpl;
if (dedx < 0.0) dedx = 0;
return dedx;
}
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
@@ -180,9 +201,5 @@ G4double G4mplIonisationModel::SampleFluctuations(
loss = G4RandGauss::shoot(meanLoss,siga);
} while (0.0 > loss || loss > twomeanLoss);
}
//G4cout << "G4mplIonisationModel::SampleFluctuations: loss= " << loss
//<< " siga= " << siga << G4endl;
return loss;
}
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....