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This commit is contained in:
Gabriele Cosmo
2023-06-30 09:09:57 +02:00
parent aef78ca386
commit dd1f179cda
3780 changed files with 212808 additions and 142780 deletions
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source/materials/src/G4IonisParamElm.cc
+36 -58
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@@ -22,28 +22,22 @@
// * use in resulting scientific publications, and indicate your *
// * acceptance of all terms of the Geant4 Software license. *
// ********************************************************************
//
//
//
//
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... ....oooOO0OOooo....
//
// 09-07-98, data moved from G4Element. M.Maire
// 22-11-00, tabulation of ionisation potential from
// 22-11-00, tabulation of ionisation potential from
// the ICRU Report N#37. V.Ivanchenko
// 08-03-01, correct handling of fShellCorrectionVector. M.Maire
// 17-10-02, Fix excitation energy interpolation. V.Ivanchenko
// 06-09-04, Update calculated values after any change of ionisation
// 06-09-04, Update calculated values after any change of ionisation
// potential change. V.Ivanchenko
// 29-04-10, Using G4Pow and mean ionisation energy from NIST V.Ivanchenko
// 27.10.11: new scheme for G4Exception (mma)
//
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... ....oooOO0OOooo....
#include "G4IonisParamElm.hh"
#include "G4NistManager.hh"
#include "G4Pow.hh"
#include "G4PhysicalConstants.hh"
#include "G4Pow.hh"
#include "G4SystemOfUnits.hh"
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... ....oooOO0OOooo....
@@ -52,19 +46,18 @@ G4IonisParamElm::G4IonisParamElm(G4double AtomNumber)
{
G4int Z = G4lrint(AtomNumber);
if (Z < 1) {
G4Exception("G4IonisParamElm::G4IonisParamElm()", "mat501", FatalException,
"It is not allowed to create an Element with Z<1");
G4Exception("G4IonisParamElm::G4IonisParamElm()", "mat501", FatalException,
"It is not allowed to create an Element with Z<1");
}
G4Pow* g4pow = G4Pow::GetInstance();
// some basic functions of the atomic number
fZ = Z;
fZ3 = g4pow->Z13(Z);
fZZ3 = fZ3*g4pow->Z13(Z+1);
flogZ3 = g4pow->logZ(Z)/3.;
fMeanExcitationEnergy =
G4NistManager::Instance()->GetMeanIonisationEnergy(Z);
fZ = Z;
fZ3 = g4pow->Z13(Z);
fZZ3 = fZ3 * g4pow->Z13(Z + 1);
flogZ3 = g4pow->logZ(Z) / 3.;
fMeanExcitationEnergy = G4NistManager::Instance()->GetMeanIonisationEnergy(Z);
// compute parameters for ion transport
// The aproximation from:
@@ -74,8 +67,11 @@ G4IonisParamElm::G4IonisParamElm(G4double AtomNumber)
// Fast ions or hadrons
G4int iz = Z - 1;
if(91 < iz) { iz = 91; }
if (91 < iz) {
iz = 91;
}
// clang-format off
static const 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,
@@ -99,53 +95,35 @@ G4IonisParamElm::G4IonisParamElm(G4double AtomNumber)
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} ;
// clang-format on
fVFermi = vFermi[iz];
fVFermi = vFermi[iz];
fLFactor = lFactor[iz];
// obsolete parameters for ionisation
fTau0 = 0.1*fZ3*MeV/proton_mass_c2;
fTaul = 2.*MeV/proton_mass_c2;
fTau0 = 0.1 * fZ3 * MeV / proton_mass_c2;
fTaul = 2. * MeV / proton_mass_c2;
// compute the Bethe-Bloch formula for energy = fTaul*particle mass
G4double rate = fMeanExcitationEnergy/electron_mass_c2 ;
G4double w = fTaul*(fTaul+2.) ;
fBetheBlochLow = (fTaul+1.)*(fTaul+1.)*std::log(2.*w/rate)/w - 1. ;
fBetheBlochLow = 2.*fZ*twopi_mc2_rcl2*fBetheBlochLow ;
fClow = std::sqrt(fTaul)*fBetheBlochLow;
fAlow = 6.458040 * fClow/fTau0;
G4double Taum = 0.035*fZ3*MeV/proton_mass_c2;
fBlow =-3.229020*fClow/(fTau0*std::sqrt(Taum));
G4double rate = fMeanExcitationEnergy / electron_mass_c2;
G4double w = fTaul * (fTaul + 2.);
fBetheBlochLow = (fTaul + 1.) * (fTaul + 1.) * std::log(2. * w / rate) / w - 1.;
fBetheBlochLow = 2. * fZ * twopi_mc2_rcl2 * fBetheBlochLow;
fClow = std::sqrt(fTaul) * fBetheBlochLow;
fAlow = 6.458040 * fClow / fTau0;
G4double Taum = 0.035 * fZ3 * MeV / proton_mass_c2;
fBlow = -3.229020 * fClow / (fTau0 * std::sqrt(Taum));
// Shell correction parameterization
fShellCorrectionVector = new G4double[3]; //[3]
rate = 0.001*fMeanExcitationEnergy/eV;
G4double rate2 = rate*rate;
/*
fShellCorrectionVector[0] = ( 1.10289e5 + 5.14781e8*rate)*rate2 ;
fShellCorrectionVector[1] = ( 7.93805e3 - 2.22565e7*rate)*rate2 ;
fShellCorrectionVector[2] = (-9.92256e1 + 2.10823e5*rate)*rate2 ;
*/
fShellCorrectionVector[0] = ( 0.422377 + 3.858019*rate)*rate2 ;
fShellCorrectionVector[1] = ( 0.0304043 - 0.1667989*rate)*rate2 ;
fShellCorrectionVector[2] = (-0.00038106 + 0.00157955*rate)*rate2 ;
}
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... ....oooOO0OOooo....
// Fake default constructor - sets only member data and allocates memory
// for usage restricted to object persistency
G4IonisParamElm::G4IonisParamElm(__void__&)
: fShellCorrectionVector(nullptr)
{
fZ=fZ3=fZZ3=flogZ3=fTau0=fTaul=fBetheBlochLow=fAlow=fBlow=fClow
=fMeanExcitationEnergy=fVFermi=fLFactor=0.0;
fShellCorrectionVector = new G4double[3]; //[3]
rate = 0.001 * fMeanExcitationEnergy / eV;
G4double rate2 = rate * rate;
fShellCorrectionVector[0] = (0.422377 + 3.858019 * rate) * rate2;
fShellCorrectionVector[1] = (0.0304043 - 0.1667989 * rate) * rate2;
fShellCorrectionVector[2] = (-0.00038106 + 0.00157955 * rate) * rate2;
}
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... ....oooOO0OOooo....
G4IonisParamElm::~G4IonisParamElm() { delete[] fShellCorrectionVector; }
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... ....oooOO0OOooo....