Import Geant4 10.0.0 source tree
This commit is contained in:
Gabriele Cosmo
@@ -23,7 +23,7 @@
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// * acceptance of all terms of the Geant4 Software license. *
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// ********************************************************************
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//
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// $Id$
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// $Id: G4eBremsstrahlungRelModel.cc 75582 2013-11-04 12:13:01Z gcosmo $
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//
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// -------------------------------------------------------------------
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//
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@@ -71,17 +71,21 @@
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
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const G4double G4eBremsstrahlungRelModel::xgi[]={ 0.0199, 0.1017, 0.2372, 0.4083,
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0.5917, 0.7628, 0.8983, 0.9801 };
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const G4double G4eBremsstrahlungRelModel::wgi[]={ 0.0506, 0.1112, 0.1569, 0.1813,
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0.1813, 0.1569, 0.1112, 0.0506 };
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const G4double G4eBremsstrahlungRelModel::Fel_light[] = {0., 5.31 , 4.79 , 4.74 , 4.71} ;
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const G4double G4eBremsstrahlungRelModel::Finel_light[] = {0., 6.144 , 5.621 , 5.805 , 5.924} ;
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const G4double
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G4eBremsstrahlungRelModel::xgi[]={ 0.0199, 0.1017, 0.2372, 0.4083,
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0.5917, 0.7628, 0.8983, 0.9801 };
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const G4double
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G4eBremsstrahlungRelModel::wgi[]={ 0.0506, 0.1112, 0.1569, 0.1813,
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0.1813, 0.1569, 0.1112, 0.0506 };
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const G4double
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G4eBremsstrahlungRelModel::Fel_light[] = {0., 5.31 , 4.79 , 4.74 , 4.71};
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const G4double
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G4eBremsstrahlungRelModel::Finel_light[] = {0., 6.144 , 5.621 , 5.805 , 5.924};
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using namespace std;
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G4eBremsstrahlungRelModel::G4eBremsstrahlungRelModel(const G4ParticleDefinition* p,
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const G4String& nam)
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G4eBremsstrahlungRelModel::G4eBremsstrahlungRelModel(
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const G4ParticleDefinition* p, const G4String& nam)
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: G4VEmModel(nam),
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particle(0),
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bremFactor(fine_structure_const*classic_electr_radius*classic_electr_radius*16./3.),
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@@ -94,8 +98,8 @@ G4eBremsstrahlungRelModel::G4eBremsstrahlungRelModel(const G4ParticleDefinition*
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fParticleChange = 0;
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theGamma = G4Gamma::Gamma();
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lowKinEnergy = 0.1*GeV;
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SetLowEnergyLimit(lowKinEnergy);
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lowestKinEnergy = 1.0*MeV;
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SetLowEnergyLimit(lowestKinEnergy);
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nist = G4NistManager::Instance();
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@@ -117,11 +121,11 @@ G4eBremsstrahlungRelModel::G4eBremsstrahlungRelModel(const G4ParticleDefinition*
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void G4eBremsstrahlungRelModel::InitialiseConstants()
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{
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facFel = log(184.15);
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facFinel = log(1194.);
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facFel = G4Log(184.15);
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facFinel = G4Log(1194.);
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preS1 = 1./(184.15*184.15);
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logTwo = log(2.);
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logTwo = G4Log(2.);
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}
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
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@@ -162,8 +166,7 @@ void G4eBremsstrahlungRelModel::SetupForMaterial(const G4ParticleDefinition*,
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// define critical gamma energies (important for integration/dicing)
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klpm=totalEnergy*totalEnergy/lpmEnergy;
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kp=sqrt(densityCorr);
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kp=sqrt(densityCorr);
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}
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@@ -174,11 +177,9 @@ void G4eBremsstrahlungRelModel::Initialise(const G4ParticleDefinition* p,
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{
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if(p) { SetParticle(p); }
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lowKinEnergy = LowEnergyLimit();
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currentZ = 0.;
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InitialiseElementSelectors(p, cuts);
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if(IsMaster()) { InitialiseElementSelectors(p, cuts); }
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if(isInitialised) { return; }
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fParticleChange = GetParticleChangeForLoss();
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@@ -187,6 +188,24 @@ void G4eBremsstrahlungRelModel::Initialise(const G4ParticleDefinition* p,
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
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void G4eBremsstrahlungRelModel::InitialiseLocal(const G4ParticleDefinition*,
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G4VEmModel* masterModel)
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{
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SetElementSelectors(masterModel->GetElementSelectors());
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}
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
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G4double
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G4eBremsstrahlungRelModel::MinPrimaryEnergy(const G4Material*,
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const G4ParticleDefinition*,
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G4double cut)
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{
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return std::max(lowestKinEnergy, cut);
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}
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
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G4double G4eBremsstrahlungRelModel::ComputeDEDXPerVolume(
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const G4Material* material,
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const G4ParticleDefinition* p,
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@@ -194,7 +213,7 @@ G4double G4eBremsstrahlungRelModel::ComputeDEDXPerVolume(
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G4double cutEnergy)
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{
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if(!particle) { SetParticle(p); }
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if(kineticEnergy < lowKinEnergy) { return 0.0; }
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if(kineticEnergy < LowEnergyLimit()) { return 0.0; }
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G4double cut = std::min(cutEnergy, kineticEnergy);
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if(cut == 0.0) { return 0.0; }
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@@ -265,7 +284,7 @@ G4double G4eBremsstrahlungRelModel::ComputeCrossSectionPerAtom(
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G4double maxEnergy)
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{
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if(!particle) { SetParticle(p); }
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if(kineticEnergy < lowKinEnergy) { return 0.0; }
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if(kineticEnergy < LowEnergyLimit()) { return 0.0; }
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G4double cut = std::min(cutEnergy, kineticEnergy);
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G4double tmax = std::min(maxEnergy, kineticEnergy);
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@@ -291,8 +310,8 @@ G4double G4eBremsstrahlungRelModel::ComputeXSectionPerAtom(G4double cut)
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G4double cross = 0.0;
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// number of intervals and integration step
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G4double vcut = log(cut/totalEnergy);
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G4double vmax = log(kinEnergy/totalEnergy);
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G4double vcut = G4Log(cut/totalEnergy);
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G4double vmax = G4Log(kinEnergy/totalEnergy);
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G4int n = (G4int)(0.45*(vmax - vcut)) + 4;
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// n=1; // integration test
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G4double delta = (vmax - vcut)/G4double(n);
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@@ -305,7 +324,7 @@ G4double G4eBremsstrahlungRelModel::ComputeXSectionPerAtom(G4double cut)
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for(G4int i=0; i<8; i++) {
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G4double eg = exp(e0 + xgi[i]*delta)*totalEnergy;
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G4double eg = G4Exp(e0 + xgi[i]*delta)*totalEnergy;
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if(totalEnergy > energyThresholdLPM) {
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xs = ComputeRelDXSectionPerAtom(eg);
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@@ -323,6 +342,7 @@ G4double G4eBremsstrahlungRelModel::ComputeXSectionPerAtom(G4double cut)
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}
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
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void G4eBremsstrahlungRelModel::CalcLPMFunctions(G4double k)
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{
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// *** calculate lpm variable s & sprime ***
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@@ -338,14 +358,14 @@ void G4eBremsstrahlungRelModel::CalcLPMFunctions(G4double k)
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if (sprime>1)
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xiLPM = 1.;
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else if (sprime>sqrt(2.)*s1) {
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G4double h = log(sprime)/logTS1;
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G4double h = G4Log(sprime)/logTS1;
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xiLPM = 1+h-0.08*(1-h)*(1-sqr(1-h))/logTS1;
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}
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G4double s0 = sprime/sqrt(xiLPM);
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// *** merging with density effect*** should be only necessary in region "close to" kp, e.g. k<100*kp
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// using Ter-Mikaelian eq. (20.9)
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// *** merging with density effect*** should be only necessary in region
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// "close to" kp, e.g. k<100*kp using Ter-Mikaelian eq. (20.9)
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G4double k2 = k*k;
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s0 *= (1 + (densityCorr/k2) );
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@@ -353,7 +373,7 @@ void G4eBremsstrahlungRelModel::CalcLPMFunctions(G4double k)
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// Klein eq. (75)
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xiLPM = 1.;
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if (s0<=s1) xiLPM = 2.;
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else if ( (s1<s0) && (s0<=1) ) xiLPM = 1. + log(s0)/logS1;
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else if ( (s1<s0) && (s0<=1) ) { xiLPM = 1. + G4Log(s0)/logS1; }
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// *** calculate supression functions phi and G ***
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@@ -371,11 +391,11 @@ void G4eBremsstrahlungRelModel::CalcLPMFunctions(G4double k)
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else if (s0<1.9516) {
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// intermediate suppression
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// using eq.77 approxim. valid s<2.
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phiLPM = 1.-exp(-6.*s0*(1.+(3.-pi)*s0)
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phiLPM = 1.-G4Exp(-6.*s0*(1.+(3.-pi)*s0)
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+s3/(0.623+0.795*s0+0.658*s2));
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if (s0<0.415827397755) {
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// using eq.77 approxim. valid 0.07<s<2
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G4double psiLPM = 1-exp(-4*s0-8*s2/(1+3.936*s0+4.97*s2-0.05*s3+7.50*s4));
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G4double psiLPM = 1-G4Exp(-4*s0-8*s2/(1+3.936*s0+4.97*s2-0.05*s3+7.50*s4));
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gLPM = 3*psiLPM-2*phiLPM;
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}
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else {
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@@ -468,7 +488,7 @@ void G4eBremsstrahlungRelModel::SampleSecondaries(
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G4double maxEnergy)
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{
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G4double kineticEnergy = dp->GetKineticEnergy();
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if(kineticEnergy < lowKinEnergy) { return; }
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if(kineticEnergy < LowEnergyLimit()) { return; }
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G4double cut = std::min(cutEnergy, kineticEnergy);
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G4double emax = std::min(maxEnergy, kineticEnergy);
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if(cut >= emax) { return; }
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@@ -487,12 +507,12 @@ void G4eBremsstrahlungRelModel::SampleSecondaries(
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G4bool highe = true;
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if(totalEnergy < energyThresholdLPM) { highe = false; }
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G4double xmin = log(cut*cut + densityCorr);
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G4double xmax = log(emax*emax + densityCorr);
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G4double xmin = G4Log(cut*cut + densityCorr);
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G4double xmax = G4Log(emax*emax + densityCorr);
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G4double gammaEnergy, f, x;
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do {
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x = exp(xmin + G4UniformRand()*(xmax - xmin)) - densityCorr;
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x = G4Exp(xmin + G4UniformRand()*(xmax - xmin)) - densityCorr;
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if(x < 0.0) { x = 0.0; }
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gammaEnergy = sqrt(x);
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if(highe) { f = ComputeRelDXSectionPerAtom(gammaEnergy); }
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