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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/materials/src/G4IonisParamMat.cc
+87 -11
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@@ -24,19 +24,20 @@
// ********************************************************************
//
//
// $Id: G4IonisParamMat.cc,v 1.18 2006/06/29 19:12:45 gunter Exp $
// GEANT4 tag $Name: geant4-09-00 $
// $Id: G4IonisParamMat.cc,v 1.20 2007/09/27 14:05:47 vnivanch Exp $
// GEANT4 tag $Name: geant4-09-01 $
//
//
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... ....oooOO0OOooo....
// 10-05-05, add a missing coma in FindMeanExcitationEnergy() - Bug#746 (mma)
// 06-09-04, factor 2 to shell correction term (V.Ivanchenko)
// 28-10-02, add setMeanExcitationEnergy (V.Ivanchenko)
// 08-02-01, fShellCorrectionVector correctly handled (mma)
// 16-01-01, bug corrected in ComputeDensityEffect() E100eV (L.Urban)
// 18-07-98, bug corrected in ComputeDensityEffect() for gas
// 09-07-98, data moved from G4Material, M.Maire
// 18-07-98, bug corrected in ComputeDensityEffect() for gas
// 16-01-01, bug corrected in ComputeDensityEffect() E100eV (L.Urban)
// 08-02-01, fShellCorrectionVector correctly handled (mma)
// 28-10-02, add setMeanExcitationEnergy (V.Ivanchenko)
// 06-09-04, factor 2 to shell correction term (V.Ivanchenko)
// 10-05-05, add a missing coma in FindMeanExcitationEnergy() - Bug#746 (mma)
// 27-09-07, add computation of parameters for ions (V.Ivanchenko)
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... ....oooOO0OOooo....
@@ -52,6 +53,7 @@ G4IonisParamMat::G4IonisParamMat(G4Material* material)
ComputeMeanParameters();
ComputeDensityEffect();
ComputeFluctModel();
ComputeIonParameters();
}
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... ....oooOO0OOooo....
@@ -216,18 +218,92 @@ void G4IonisParamMat::ComputeFluctModel()
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... ....oooOO0OOooo....
void G4IonisParamMat::ComputeIonParameters()
{
// compute parameters for ion transport
// The aproximation from:
// J.F.Ziegler, J.P. Biersack, U. Littmark
// The Stopping and Range of Ions in Matter,
// Vol.1, Pergamon Press, 1985
// Fast ions or hadrons
static G4double vFermi[92] = {
1.0309, 0.15976, 0.59782, 1.0781, 1.0486, 1.0, 1.058, 0.93942, 0.74562, 0.3424,
0.45259, 0.71074, 0.90519, 0.97411, 0.97184, 0.89852, 0.70827, 0.39816, 0.36552, 0.62712,
0.81707, 0.9943, 1.1423, 1.2381, 1.1222, 0.92705, 1.0047, 1.2, 1.0661, 0.97411,
0.84912, 0.95, 1.0903, 1.0429, 0.49715, 0.37755, 0.35211, 0.57801, 0.77773, 1.0207,
1.029, 1.2542, 1.122, 1.1241, 1.0882, 1.2709, 1.2542, 0.90094, 0.74093, 0.86054,
0.93155, 1.0047, 0.55379, 0.43289, 0.32636, 0.5131, 0.695, 0.72591, 0.71202, 0.67413,
0.71418, 0.71453, 0.5911, 0.70263, 0.68049, 0.68203, 0.68121, 0.68532, 0.68715, 0.61884,
0.71801, 0.83048, 1.1222, 1.2381, 1.045, 1.0733, 1.0953, 1.2381, 1.2879, 0.78654,
0.66401, 0.84912, 0.88433, 0.80746, 0.43357, 0.41923, 0.43638, 0.51464, 0.73087, 0.81065,
1.9578, 1.0257} ;
static G4double lFactor[92] = {
1.0, 1.0, 1.1, 1.06, 1.01, 1.03, 1.04, 0.99, 0.95, 0.9,
0.82, 0.81, 0.83, 0.88, 1.0, 0.95, 0.97, 0.99, 0.98, 0.97,
0.98, 0.97, 0.96, 0.93, 0.91, 0.9, 0.88, 0.9, 0.9, 0.9,
0.9, 0.85, 0.9, 0.9, 0.91, 0.92, 0.9, 0.9, 0.9, 0.9,
0.9, 0.88, 0.9, 0.88, 0.88, 0.9, 0.9, 0.88, 0.9, 0.9,
0.9, 0.9, 0.96, 1.2, 0.9, 0.88, 0.88, 0.85, 0.9, 0.9,
0.92, 0.95, 0.99, 1.03, 1.05, 1.07, 1.08, 1.1, 1.08, 1.08,
1.08, 1.08, 1.09, 1.09, 1.1, 1.11, 1.12, 1.13, 1.14, 1.15,
1.17, 1.2, 1.18, 1.17, 1.17, 1.16, 1.16, 1.16, 1.16, 1.16,
1.16, 1.16} ;
// get elements in the actual material,
const G4ElementVector* theElementVector = fMaterial->GetElementVector() ;
const G4double* theAtomicNumDensityVector =
fMaterial->GetAtomicNumDensityVector() ;
const G4int NumberOfElements = fMaterial->GetNumberOfElements() ;
// loop for the elements in the material
// to find out average values Z, vF, lF
G4double z = 0.0, vF = 0.0, lF = 0.0, norm = 0.0 ;
if( 1 == NumberOfElements ) {
z = fMaterial->GetZ() ;
G4int iz = G4int(z) - 1 ;
if(iz < 0) iz = 0 ;
else if(iz > 91) iz = 91 ;
vF = vFermi[iz] ;
lF = lFactor[iz] ;
} else {
for (G4int iel=0; iel<NumberOfElements; iel++)
{
const G4Element* element = (*theElementVector)[iel] ;
G4double z2 = element->GetZ() ;
const G4double weight = theAtomicNumDensityVector[iel] ;
norm += weight ;
z += z2 * weight ;
G4int iz = G4int(z2) - 1 ;
if(iz < 0) iz = 0 ;
else if(iz > 91) iz =91 ;
vF += vFermi[iz] * weight ;
lF += lFactor[iz] * weight ;
}
z /= norm ;
vF /= norm ;
lF /= norm ;
}
fZeff = z;
fLfactor = lF;
fFermiEnergy = 25.*keV*vF*vF;
}
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... ....oooOO0OOooo....
void G4IonisParamMat::SetMeanExcitationEnergy(G4double value)
{
if(value == fMeanExcitationEnergy || value <= 0.0) return;
if (fMeanExcitationEnergy > 0.0 &&
G4NistManager::Instance()->GetVerbose() > 0) {
if (G4NistManager::Instance()->GetVerbose() > 0)
G4cout << "G4Material: Mean excitation energy is changed for "
<< fMaterial->GetName()
<< " Iold= " << fMeanExcitationEnergy/eV
<< "eV; Inew= " << value/eV << " eV;"
<< G4endl;
}
fMeanExcitationEnergy = value;
fLogMeanExcEnergy = std::log(value);