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This commit is contained in:
Gabriele Cosmo
2016-06-08 16:57:27 +02:00
parent 330b82b769
commit 37fff30d2e
5733 changed files with 263867 additions and 74574 deletions
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source/materials/src/G4IonisParamMat.cc
+95 -6
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@@ -21,12 +21,13 @@
// ********************************************************************
//
//
// $Id: G4IonisParamMat.cc,v 1.9 2001/09/13 08:57:46 maire Exp $
// GEANT4 tag $Name: geant4-04-01 $
// $Id: G4IonisParamMat.cc,v 1.10 2002/10/29 16:17:05 vnivanch Exp $
// GEANT4 tag $Name: geant4-05-00 $
//
//
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... ....oooOO0OOooo....
// 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
@@ -54,16 +55,21 @@ void G4IonisParamMat::ComputeMeanParameters()
// compute mean excitation energy and shell correction vector
fTaul = (*(fMaterial->GetElementVector()))[0]->GetIonisation()->GetTaul();
fMeanExcitationEnergy = 0.;
fLogMeanExcEnergy = 0.;
for (size_t i=0; i < fMaterial->GetNumberOfElements(); i++)
for (size_t i=0; i < fMaterial->GetNumberOfElements(); i++) {
fLogMeanExcEnergy += (fMaterial->GetVecNbOfAtomsPerVolume())[i]
*((*(fMaterial->GetElementVector()))[i]->GetZ())
*log((*(fMaterial->GetElementVector()))[i]->GetIonisation()
->GetMeanExcitationEnergy());
*((*(fMaterial->GetElementVector()))[i]->GetZ())
*log((*(fMaterial->GetElementVector()))[i]->GetIonisation()
->GetMeanExcitationEnergy());
}
fLogMeanExcEnergy /= fMaterial->GetTotNbOfElectPerVolume();
fMeanExcitationEnergy = exp(fLogMeanExcEnergy);
fShellCorrectionVector = new G4double[3];
for (G4int j=0; j<=2; j++)
@@ -192,6 +198,89 @@ void G4IonisParamMat::ComputeFluctModel()
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... ....oooOO0OOooo....
void G4IonisParamMat::SetMeanExcitationEnergy(G4double value)
{
if(value == fMeanExcitationEnergy || value <= 0.0) return;
if(fMeanExcitationEnergy > 0.0) {
G4cout << "G4Material: Mean excitation energy is changed for " << fMaterial->GetName()
<< " Iold= " << fMeanExcitationEnergy/eV
<< "eV; Inew= " << value/eV << " eV;"
<< G4endl;
}
fMeanExcitationEnergy = value;
fLogMeanExcEnergy = log(value);
}
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... ....oooOO0OOooo....
G4double G4IonisParamMat::FindMeanExcitationEnergy(const G4String& chFormula)
{
// The data on mean excitation energy for compaunds
// from "Stopping Powers for Electrons and Positrons"
// ICRU Report N#37, 1984 (energy in eV)
const size_t numberOfMolecula = 79 ;
static G4String name[numberOfMolecula] = {
// gas
"NH_3", "C_4H_10", "CO_2", "C_2H_6", "C_7H_16",
"C_6H_14", "CH_4", "NO", "N_2O", "C_8H_18",
"C_5H_12", "C_3H_8", "H_2O-Gas",
// liquid
"C_3H_6O", "C_6H_5NH_2", "C_6H_6", "C_4H_9OH", "CCl_4",
"C_6H_5Cl", "CHCl_3", "C_6H_12", "C_6H_4Cl_2", "C_4Cl_2H_8O",
"C_2Cl_2H_4", "(C_2H_5)_2O", "C_2H_5OH", "C_3H_5(OH)_3","C_7H_16",
"C_6H_14", "CH_3OH", "C_6H_5NO_2","C_5H_12", "C_3H_7OH",
"C_5H_5N", "C_8H_8", "C_2Cl_4", "C_7H_8", "C_2Cl_3H",
"H_2O", "C_8H_10"
//solid
"C_5H_5N_5", "C_5H_5N_5O", "(C_6H_11NO)-nylon", "C_25H_52",
"(C_2H_4)-Polyethylene", "(C_5H_8O-2)-Polymethil_Methacrylate",
"(C_8H_8)-Polystyrene", "A-150-tissue", "Al_2O_3", "CaF_2",
"LiF", "Photo_Emulsion", "(C_2F_4)-Teflon", "SiO_2"
} ;
static G4double meanExcitation[numberOfMolecula] = {
53.7, 48.3, 85.0, 45.4, 49.2,
49.1, 41.7, 87.8, 84.9, 49.5,
48.2, 47.1, 71.6,
64.2, 66.2, 63.4, 59.9, 166.3,
89.1, 156.0, 56.4, 106.5, 103.3,
111.9, 60.0, 62.9, 72.6, 54.4,
54.0, 67.6, 75.8, 53.6, 61.1,
66.2, 64.0, 159.2, 62.5, 148.1,
75.0, 61.8,
71.4, 75.0, 63.9, 48.3, 57.4,
74.0, 68.7, 65.1, 145.2, 166.,
94.0, 331.0, 99.1, 139.2
} ;
G4double x = fMeanExcitationEnergy;
for(size_t i=0; i<numberOfMolecula; i++) {
if(chFormula == name[i]) {
x = meanExcitation[i]*eV;
break;
}
}
return x;
}
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... ....oooOO0OOooo....
G4IonisParamMat::~G4IonisParamMat()
{
if (fShellCorrectionVector) delete [] fShellCorrectionVector;