Gabriele Cosmo
140 lines
4.8 KiB
C++
140 lines
4.8 KiB
C++
//
|
|
// ********************************************************************
|
|
// * License and Disclaimer *
|
|
// * *
|
|
// * The Geant4 software is copyright of the Copyright Holders of *
|
|
// * the Geant4 Collaboration. It is provided under the terms and *
|
|
// * conditions of the Geant4 Software License, included in the file *
|
|
// * LICENSE and available at http://cern.ch/geant4/license . These *
|
|
// * include a list of copyright holders. *
|
|
// * *
|
|
// * Neither the authors of this software system, nor their employing *
|
|
// * institutes,nor the agencies providing financial support for this *
|
|
// * work make any representation or warranty, express or implied, *
|
|
// * regarding this software system or assume any liability for its *
|
|
// * use. Please see the license in the file LICENSE and URL above *
|
|
// * for the full disclaimer and the limitation of liability. *
|
|
// * *
|
|
// * This code implementation is the result of the scientific and *
|
|
// * technical work of the GEANT4 collaboration. *
|
|
// * By using, copying, modifying or distributing the software (or *
|
|
// * any work based on the software) you agree to acknowledge its *
|
|
// * use in resulting scientific publications, and indicate your *
|
|
// * acceptance of all terms of the Geant4 Software license. *
|
|
// ********************************************************************
|
|
//
|
|
//
|
|
// Author: Vladimir Ivanchenko
|
|
//
|
|
// History:
|
|
// --------
|
|
// 31 May 2011 V.Ivanchenko Created
|
|
// 09 Mar 2012 L.Pandola update methods
|
|
//
|
|
//
|
|
|
|
#include "G4LivermoreIonisationCrossSection.hh"
|
|
#include "G4SystemOfUnits.hh"
|
|
#include "G4AtomicTransitionManager.hh"
|
|
#include "G4VCrossSectionHandler.hh"
|
|
#include "G4eCrossSectionHandler.hh"
|
|
#include "G4SemiLogInterpolation.hh"
|
|
|
|
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
|
|
|
|
|
|
G4LivermoreIonisationCrossSection::G4LivermoreIonisationCrossSection(
|
|
const G4String& nam) : G4VhShellCrossSection(nam), crossSectionHandler(nullptr)
|
|
{
|
|
fLowEnergyLimit = 10.0*eV;
|
|
fHighEnergyLimit = 100.0*GeV;
|
|
|
|
transitionManager = G4AtomicTransitionManager::Instance();
|
|
verboseLevel = 0;
|
|
|
|
Initialise();
|
|
}
|
|
|
|
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
|
|
|
|
G4LivermoreIonisationCrossSection::~G4LivermoreIonisationCrossSection()
|
|
{
|
|
delete crossSectionHandler;
|
|
}
|
|
|
|
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
|
|
|
|
void G4LivermoreIonisationCrossSection::Initialise()
|
|
{
|
|
const G4int binForFluo = 20;
|
|
G4int nbin = G4int(std::log10(fHighEnergyLimit/fLowEnergyLimit) + 0.5);
|
|
if(nbin <= 0) { nbin = 1; }
|
|
nbin *= binForFluo;
|
|
|
|
// Data on shell ionisation x-sections
|
|
if (crossSectionHandler) {
|
|
crossSectionHandler->Clear();
|
|
delete crossSectionHandler;
|
|
}
|
|
|
|
G4VDataSetAlgorithm* inter = new G4SemiLogInterpolation();
|
|
crossSectionHandler =
|
|
new G4eCrossSectionHandler(inter,fLowEnergyLimit,fHighEnergyLimit,nbin);
|
|
crossSectionHandler->LoadShellData("ioni/ion-ss-cs-");
|
|
//G4cout << "!!! G4LivermoreIonisationCrossSection::Initialise()" << G4endl;
|
|
}
|
|
|
|
G4double
|
|
G4LivermoreIonisationCrossSection::CrossSection(G4int Z, G4AtomicShellEnumerator shell,
|
|
G4double kinEnergy, G4double,
|
|
const G4Material*)
|
|
{
|
|
G4double cross = 0.0;
|
|
G4int n = G4int(shell);
|
|
G4int nmax = std::min(9,transitionManager->NumberOfShells(Z));
|
|
if(Z > 6 && Z < 93 && n < nmax &&
|
|
kinEnergy >= fLowEnergyLimit && kinEnergy <= fHighEnergyLimit) {
|
|
cross = crossSectionHandler->FindValue(Z, kinEnergy, n);
|
|
}
|
|
return cross;
|
|
}
|
|
|
|
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
|
|
|
|
std::vector<G4double>
|
|
G4LivermoreIonisationCrossSection::GetCrossSection(G4int Z,
|
|
G4double kinEnergy,
|
|
G4double, G4double,
|
|
const G4Material*)
|
|
{
|
|
G4int nmax = std::min(9,transitionManager->NumberOfShells(Z));
|
|
std::vector<G4double> vec(nmax,0.0);
|
|
for(G4int i=0; i<nmax; ++i) {
|
|
vec[i] = CrossSection(Z, G4AtomicShellEnumerator(i), kinEnergy);
|
|
}
|
|
return vec;
|
|
}
|
|
|
|
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
|
|
|
|
std::vector<G4double>
|
|
G4LivermoreIonisationCrossSection::Probabilities(G4int Z,
|
|
G4double kinEnergy,
|
|
G4double,
|
|
G4double,
|
|
const G4Material*)
|
|
{
|
|
std::vector<G4double> vec = GetCrossSection(Z, kinEnergy);
|
|
size_t n = vec.size();
|
|
size_t i;
|
|
G4double sum = 0.0;
|
|
for(i=0; i<n; ++i) { sum += vec[i]; }
|
|
if(sum > 0.0) {
|
|
sum = 1.0/sum;
|
|
for(i=0; i<n; ++i) { vec[i] = vec[i]*sum; }
|
|
}
|
|
return vec;
|
|
}
|
|
|
|
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
|