Import Geant4 10.0.0 source tree
This commit is contained in:
Gabriele Cosmo
@@ -0,0 +1,789 @@
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//
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// ********************************************************************
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// * License and Disclaimer *
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// * *
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// * The Geant4 software is copyright of the Copyright Holders of *
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// * the Geant4 Collaboration. It is provided under the terms and *
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// * conditions of the Geant4 Software License, included in the file *
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// * LICENSE and available at http://cern.ch/geant4/license . These *
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// * include a list of copyright holders. *
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// * *
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// * Neither the authors of this software system, nor their employing *
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// * institutes,nor the agencies providing financial support for this *
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// * work make any representation or warranty, express or implied, *
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// * regarding this software system or assume any liability for its *
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// * use. Please see the license in the file LICENSE and URL above *
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// * for the full disclaimer and the limitation of liability. *
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// * *
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// * This code implementation is the result of the scientific and *
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// * technical work of the GEANT4 collaboration. *
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// * By using, copying, modifying or distributing the software (or *
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// * any work based on the software) you agree to acknowledge its *
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// * use in resulting scientific publications, and indicate your *
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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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//
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// G4MicroElecInelasticModel.cc, 2011/08/29 A.Valentin, M. Raine
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//
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// Based on the following publications
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//
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// - Inelastic cross-sections of low energy electrons in silicon
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// for the simulation of heavy ion tracks with theGeant4-DNA toolkit,
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// NSS Conf. Record 2010, pp. 80-85.
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// - Geant4 physics processes for microdosimetry simulation:
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// very low energy electromagnetic models for electrons in Si,
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// NIM B, vol. 288, pp. 66 - 73, 2012.
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// - Geant4 physics processes for microdosimetry simulation:
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// very low energy electromagnetic models for protons and
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// heavy ions in Si, NIM B, vol. 287, pp. 124 - 129, 2012.
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//
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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#include "G4MicroElecInelasticModel.hh"
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#include "globals.hh"
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#include "G4PhysicalConstants.hh"
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#include "G4SystemOfUnits.hh"
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#include "G4ios.hh"
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#include "G4UnitsTable.hh"
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#include "G4UAtomicDeexcitation.hh"
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#include "G4LossTableManager.hh"
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#include "G4ionEffectiveCharge.hh"
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
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using namespace std;
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
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G4MicroElecInelasticModel::G4MicroElecInelasticModel(const G4ParticleDefinition*,
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const G4String& nam)
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:G4VEmModel(nam),fAtomDeexcitation(0),isInitialised(false)
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{
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nistSi = G4NistManager::Instance()->FindOrBuildMaterial("G4_Si");
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verboseLevel= 0;
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// Verbosity scale:
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// 0 = nothing
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// 1 = warning for energy non-conservation
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// 2 = details of energy budget
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// 3 = calculation of cross sections, file openings, sampling of atoms
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// 4 = entering in methods
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if( verboseLevel>0 )
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{
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G4cout << "MicroElec inelastic model is constructed " << G4endl;
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}
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//Mark this model as "applicable" for atomic deexcitation
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SetDeexcitationFlag(true);
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fParticleChangeForGamma = 0;
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}
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
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G4MicroElecInelasticModel::~G4MicroElecInelasticModel()
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{
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// Cross section
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std::map< G4String,G4MicroElecCrossSectionDataSet*,std::less<G4String> >::iterator pos;
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for (pos = tableData.begin(); pos != tableData.end(); ++pos)
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{
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G4MicroElecCrossSectionDataSet* table = pos->second;
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delete table;
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}
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// Final state
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eVecm.clear();
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pVecm.clear();
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}
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
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void G4MicroElecInelasticModel::Initialise(const G4ParticleDefinition* particle,
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const G4DataVector& /*cuts*/)
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{
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if (verboseLevel > 3)
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G4cout << "Calling G4MicroElecInelasticModel::Initialise()" << G4endl;
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// Energy limits
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G4String fileElectron("microelec/sigma_inelastic_e_Si");
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G4String fileProton("microelec/sigma_inelastic_p_Si");
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G4ParticleDefinition* electronDef = G4Electron::ElectronDefinition();
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G4ParticleDefinition* protonDef = G4Proton::ProtonDefinition();
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G4String electron;
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G4String proton;
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G4double scaleFactor = 1e-18 * cm *cm;
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char *path = getenv("G4LEDATA");
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// *** ELECTRON
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electron = electronDef->GetParticleName();
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tableFile[electron] = fileElectron;
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lowEnergyLimit[electron] = 16.7 * eV;
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highEnergyLimit[electron] = 100.0 * MeV;
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// Cross section
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G4MicroElecCrossSectionDataSet* tableE = new G4MicroElecCrossSectionDataSet(new G4LogLogInterpolation, eV,scaleFactor );
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tableE->LoadData(fileElectron);
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tableData[electron] = tableE;
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// Final state
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std::ostringstream eFullFileName;
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eFullFileName << path << "/microelec/sigmadiff_inelastic_e_Si.dat";
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std::ifstream eDiffCrossSection(eFullFileName.str().c_str());
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if (!eDiffCrossSection)
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{
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G4Exception("G4MicroElecInelasticModel::Initialise","em0003",FatalException,"Missing data file:/microelec/sigmadiff_inelastic_e_Si.dat");
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}
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eTdummyVec.push_back(0.);
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while(!eDiffCrossSection.eof())
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{
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double tDummy;
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double eDummy;
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eDiffCrossSection>>tDummy>>eDummy;
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if (tDummy != eTdummyVec.back()) eTdummyVec.push_back(tDummy);
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for (int j=0; j<6; j++)
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{
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eDiffCrossSection>>eDiffCrossSectionData[j][tDummy][eDummy];
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// SI - only if eof is not reached !
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if (!eDiffCrossSection.eof()) eDiffCrossSectionData[j][tDummy][eDummy]*=scaleFactor;
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eVecm[tDummy].push_back(eDummy);
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}
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}
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//
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// *** PROTON
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proton = protonDef->GetParticleName();
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tableFile[proton] = fileProton;
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lowEnergyLimit[proton] = 50. * keV;
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highEnergyLimit[proton] = 10. * GeV;
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// Cross section
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G4MicroElecCrossSectionDataSet* tableP = new G4MicroElecCrossSectionDataSet(new G4LogLogInterpolation, eV,scaleFactor );
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tableP->LoadData(fileProton);
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tableData[proton] = tableP;
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// Final state
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std::ostringstream pFullFileName;
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pFullFileName << path << "/microelec/sigmadiff_inelastic_p_Si.dat";
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std::ifstream pDiffCrossSection(pFullFileName.str().c_str());
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if (!pDiffCrossSection)
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{
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G4Exception("G4MicroElecInelasticModel::Initialise","em0003",FatalException,"Missing data file:/microelec/sigmadiff_inelastic_p_Si.dat");
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}
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pTdummyVec.push_back(0.);
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while(!pDiffCrossSection.eof())
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{
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double tDummy;
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double eDummy;
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pDiffCrossSection>>tDummy>>eDummy;
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if (tDummy != pTdummyVec.back()) pTdummyVec.push_back(tDummy);
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for (int j=0; j<6; j++)
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{
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pDiffCrossSection>>pDiffCrossSectionData[j][tDummy][eDummy];
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// SI - only if eof is not reached !
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if (!pDiffCrossSection.eof()) pDiffCrossSectionData[j][tDummy][eDummy]*=scaleFactor;
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pVecm[tDummy].push_back(eDummy);
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}
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}
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if (particle==electronDef)
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{
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SetLowEnergyLimit(lowEnergyLimit[electron]);
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SetHighEnergyLimit(highEnergyLimit[electron]);
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}
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if (particle==protonDef)
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{
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SetLowEnergyLimit(lowEnergyLimit[proton]);
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SetHighEnergyLimit(highEnergyLimit[proton]);
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}
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if( verboseLevel>0 )
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{
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G4cout << "MicroElec Inelastic model is initialized " << G4endl
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<< "Energy range: "
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<< LowEnergyLimit() / eV << " eV - "
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<< HighEnergyLimit() / keV << " keV for "
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<< particle->GetParticleName()
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<< " with mass (amu) " << particle->GetPDGMass()/proton_mass_c2
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<< " and charge " << particle->GetPDGCharge()
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<< G4endl << G4endl ;
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}
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//
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fAtomDeexcitation = G4LossTableManager::Instance()->AtomDeexcitation();
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if (isInitialised) { return; }
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fParticleChangeForGamma = GetParticleChangeForGamma();
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isInitialised = true;
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}
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
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G4double G4MicroElecInelasticModel::CrossSectionPerVolume(const G4Material* material,
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const G4ParticleDefinition* particleDefinition,
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G4double ekin,
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G4double,
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G4double)
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{
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if (verboseLevel > 3)
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G4cout << "Calling CrossSectionPerVolume() of G4MicroElecInelasticModel" << G4endl;
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G4double density = material->GetTotNbOfAtomsPerVolume();
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/* if (
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particleDefinition != G4Proton::ProtonDefinition()
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&&
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particleDefinition != G4Electron::ElectronDefinition()
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&&
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particleDefinition != G4GenericIon::GenericIonDefinition()
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)
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return 0;*/
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// Calculate total cross section for model
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G4double lowLim = 0;
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G4double highLim = 0;
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G4double sigma=0;
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const G4String& particleName = particleDefinition->GetParticleName();
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G4String nameLocal = particleName ;
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G4double Zeff2 = 1.0;
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G4double Mion_c2 = particleDefinition->GetPDGMass();
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if (Mion_c2 > proton_mass_c2)
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{
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G4ionEffectiveCharge EffCharge ;
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G4double Zeff = EffCharge.EffectiveCharge(particleDefinition, material,ekin);
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Zeff2 = Zeff*Zeff;
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if (verboseLevel > 3)
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G4cout << "Before scaling : " << G4endl
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<< "Particle : " << nameLocal << ", mass : " << Mion_c2/proton_mass_c2 << "*mp, charge " << Zeff
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<< ", Ekin (eV) = " << ekin/eV << G4endl ;
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ekin *= proton_mass_c2/Mion_c2 ;
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nameLocal = "proton" ;
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if (verboseLevel > 3)
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G4cout << "After scaling : " << G4endl
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<< "Particle : " << nameLocal << ", Ekin (eV) = " << ekin/eV << G4endl ;
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}
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if (material == nistSi || material->GetBaseMaterial() == nistSi)
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{
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std::map< G4String,G4double,std::less<G4String> >::iterator pos1;
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pos1 = lowEnergyLimit.find(nameLocal);
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if (pos1 != lowEnergyLimit.end())
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{
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lowLim = pos1->second;
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}
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std::map< G4String,G4double,std::less<G4String> >::iterator pos2;
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pos2 = highEnergyLimit.find(nameLocal);
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if (pos2 != highEnergyLimit.end())
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{
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highLim = pos2->second;
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}
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if (ekin >= lowLim && ekin < highLim)
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{
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std::map< G4String,G4MicroElecCrossSectionDataSet*,std::less<G4String> >::iterator pos;
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pos = tableData.find(nameLocal);
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if (pos != tableData.end())
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{
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G4MicroElecCrossSectionDataSet* table = pos->second;
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if (table != 0)
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{
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sigma = table->FindValue(ekin);
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}
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}
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else
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{
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G4Exception("G4MicroElecInelasticModel::CrossSectionPerVolume","em0002",FatalException,"Model not applicable to particle type.");
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}
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}
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else
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{
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if (nameLocal!="e-")
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{
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// G4cout << "Particle : " << nameLocal << ", Ekin (eV) = " << ekin/eV << G4endl;
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// G4cout << "### Warning: particle energy out of bounds! ###" << G4endl;
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}
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}
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if (verboseLevel > 3)
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{
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G4cout << "---> Kinetic energy (eV)=" << ekin/eV << G4endl;
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G4cout << " - Cross section per Si atom (cm^2)=" << sigma*Zeff2/cm2 << G4endl;
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G4cout << " - Cross section per Si atom (cm^-1)=" << sigma*density*Zeff2/(1./cm) << G4endl;
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}
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} // if (SiMaterial)
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return sigma*density*Zeff2;
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}
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
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void G4MicroElecInelasticModel::SampleSecondaries(std::vector<G4DynamicParticle*>* fvect,
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const G4MaterialCutsCouple* /*couple*/,
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const G4DynamicParticle* particle,
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G4double,
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G4double)
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{
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if (verboseLevel > 3)
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G4cout << "Calling SampleSecondaries() of G4MicroElecInelasticModel" << G4endl;
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G4double lowLim = 0;
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G4double highLim = 0;
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G4double ekin = particle->GetKineticEnergy();
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G4double k = ekin ;
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G4ParticleDefinition* PartDef = particle->GetDefinition();
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const G4String& particleName = PartDef->GetParticleName();
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G4String nameLocal2 = particleName ;
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G4double particleMass = particle->GetDefinition()->GetPDGMass();
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if (particleMass > proton_mass_c2)
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{
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k *= proton_mass_c2/particleMass ;
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PartDef = G4Proton::ProtonDefinition();
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nameLocal2 = "proton" ;
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}
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std::map< G4String,G4double,std::less<G4String> >::iterator pos1;
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pos1 = lowEnergyLimit.find(nameLocal2);
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if (pos1 != lowEnergyLimit.end())
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{
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lowLim = pos1->second;
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}
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std::map< G4String,G4double,std::less<G4String> >::iterator pos2;
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pos2 = highEnergyLimit.find(nameLocal2);
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if (pos2 != highEnergyLimit.end())
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{
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highLim = pos2->second;
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}
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if (k >= lowLim && k < highLim)
|
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{
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G4ParticleMomentum primaryDirection = particle->GetMomentumDirection();
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G4double totalEnergy = ekin + particleMass;
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G4double pSquare = ekin * (totalEnergy + particleMass);
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G4double totalMomentum = std::sqrt(pSquare);
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G4int Shell = RandomSelect(k,nameLocal2);
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G4double bindingEnergy = SiStructure.Energy(Shell);
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if (verboseLevel > 3)
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{
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G4cout << "---> Kinetic energy (eV)=" << k/eV << G4endl ;
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G4cout << "Shell: " << Shell << ", energy: " << bindingEnergy/eV << G4endl;
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||||
}
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||||
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// sample deexcitation
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||||
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G4int secNumberInit = 0; // need to know at a certain point the energy of secondaries
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G4int secNumberFinal = 0; // So I'll make the difference and then sum the energies
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if(fAtomDeexcitation && Shell > 2) {
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G4int Z = 14;
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G4AtomicShellEnumerator as = fKShell;
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if (Shell == 4)
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{
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as = G4AtomicShellEnumerator(1);
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||||
}
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else if (Shell == 3)
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||||
{
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as = G4AtomicShellEnumerator(3);
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||||
}
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||||
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const G4AtomicShell* shell = fAtomDeexcitation->GetAtomicShell(Z, as);
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secNumberInit = fvect->size();
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fAtomDeexcitation->GenerateParticles(fvect, shell, Z, 0, 0);
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secNumberFinal = fvect->size();
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}
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||||
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G4double secondaryKinetic = RandomizeEjectedElectronEnergy(PartDef,k,Shell);
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||||
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if (verboseLevel > 3)
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||||
{
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||||
G4cout << "Ionisation process" << G4endl;
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||||
G4cout << "Shell: " << Shell << " Kin. energy (eV)=" << k/eV
|
||||
<< " Sec. energy (eV)=" << secondaryKinetic/eV << G4endl;
|
||||
}
|
||||
|
||||
G4double cosTheta = 0.;
|
||||
G4double phi = 0.;
|
||||
RandomizeEjectedElectronDirection(PartDef, k, secondaryKinetic, cosTheta, phi);
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||||
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||||
G4double sinTheta = std::sqrt(1.-cosTheta*cosTheta);
|
||||
G4double dirX = sinTheta*std::cos(phi);
|
||||
G4double dirY = sinTheta*std::sin(phi);
|
||||
G4double dirZ = cosTheta;
|
||||
G4ThreeVector deltaDirection(dirX,dirY,dirZ);
|
||||
deltaDirection.rotateUz(primaryDirection);
|
||||
|
||||
//if (particle->GetDefinition() == G4Electron::ElectronDefinition())
|
||||
//{
|
||||
G4double deltaTotalMomentum = std::sqrt(secondaryKinetic*(secondaryKinetic + 2.*electron_mass_c2 ));
|
||||
|
||||
G4double finalPx = totalMomentum*primaryDirection.x() - deltaTotalMomentum*deltaDirection.x();
|
||||
G4double finalPy = totalMomentum*primaryDirection.y() - deltaTotalMomentum*deltaDirection.y();
|
||||
G4double finalPz = totalMomentum*primaryDirection.z() - deltaTotalMomentum*deltaDirection.z();
|
||||
G4double finalMomentum = std::sqrt(finalPx*finalPx + finalPy*finalPy + finalPz*finalPz);
|
||||
finalPx /= finalMomentum;
|
||||
finalPy /= finalMomentum;
|
||||
finalPz /= finalMomentum;
|
||||
|
||||
G4ThreeVector direction;
|
||||
direction.set(finalPx,finalPy,finalPz);
|
||||
|
||||
fParticleChangeForGamma->ProposeMomentumDirection(direction.unit()) ;
|
||||
//}
|
||||
//else fParticleChangeForGamma->ProposeMomentumDirection(primaryDirection) ;
|
||||
|
||||
// note that secondaryKinetic is the energy of the delta ray, not of all secondaries.
|
||||
G4double deexSecEnergy = 0;
|
||||
for (G4int j=secNumberInit; j < secNumberFinal; j++) {
|
||||
deexSecEnergy = deexSecEnergy + (*fvect)[j]->GetKineticEnergy();}
|
||||
|
||||
fParticleChangeForGamma->SetProposedKineticEnergy(ekin-bindingEnergy-secondaryKinetic);
|
||||
fParticleChangeForGamma->ProposeLocalEnergyDeposit(bindingEnergy-deexSecEnergy);
|
||||
|
||||
G4DynamicParticle* dp = new G4DynamicParticle (G4Electron::Electron(),deltaDirection,secondaryKinetic) ;
|
||||
fvect->push_back(dp);
|
||||
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
|
||||
|
||||
G4double G4MicroElecInelasticModel::RandomizeEjectedElectronEnergy(G4ParticleDefinition* particleDefinition,
|
||||
G4double k, G4int shell)
|
||||
{
|
||||
if (particleDefinition == G4Electron::ElectronDefinition())
|
||||
{
|
||||
G4double maximumEnergyTransfer=0.;
|
||||
if ((k+SiStructure.Energy(shell))/2. > k) maximumEnergyTransfer=k;
|
||||
else maximumEnergyTransfer = (k+SiStructure.Energy(shell))/2.;
|
||||
|
||||
G4double crossSectionMaximum = 0.;
|
||||
|
||||
G4double minEnergy = SiStructure.Energy(shell);
|
||||
G4double maxEnergy = maximumEnergyTransfer;
|
||||
G4int nEnergySteps = 100;
|
||||
|
||||
G4double value(minEnergy);
|
||||
G4double stpEnergy(std::pow(maxEnergy/value, 1./static_cast<G4double>(nEnergySteps-1)));
|
||||
G4int step(nEnergySteps);
|
||||
while (step>0)
|
||||
{
|
||||
step--;
|
||||
G4double differentialCrossSection = DifferentialCrossSection(particleDefinition, k/eV, value/eV, shell);
|
||||
if(differentialCrossSection >= crossSectionMaximum) crossSectionMaximum = differentialCrossSection;
|
||||
value*=stpEnergy;
|
||||
}
|
||||
|
||||
|
||||
G4double secondaryElectronKineticEnergy=0.;
|
||||
do
|
||||
{
|
||||
secondaryElectronKineticEnergy = G4UniformRand() * (maximumEnergyTransfer-SiStructure.Energy(shell));
|
||||
} while(G4UniformRand()*crossSectionMaximum >
|
||||
DifferentialCrossSection(particleDefinition, k/eV,(secondaryElectronKineticEnergy+SiStructure.Energy(shell))/eV,shell));
|
||||
|
||||
return secondaryElectronKineticEnergy;
|
||||
|
||||
}
|
||||
|
||||
if (particleDefinition == G4Proton::ProtonDefinition())
|
||||
{
|
||||
G4double maximumEnergyTransfer = 4.* (electron_mass_c2 / proton_mass_c2) * k;
|
||||
G4double crossSectionMaximum = 0.;
|
||||
|
||||
G4double minEnergy = SiStructure.Energy(shell);
|
||||
G4double maxEnergy = maximumEnergyTransfer;
|
||||
G4int nEnergySteps = 100;
|
||||
|
||||
G4double value(minEnergy);
|
||||
G4double stpEnergy(std::pow(maxEnergy/value, 1./static_cast<G4double>(nEnergySteps-1)));
|
||||
G4int step(nEnergySteps);
|
||||
while (step>0)
|
||||
{
|
||||
step--;
|
||||
G4double differentialCrossSection = DifferentialCrossSection(particleDefinition, k/eV, value/eV, shell);
|
||||
if(differentialCrossSection >= crossSectionMaximum) crossSectionMaximum = differentialCrossSection;
|
||||
value*=stpEnergy;
|
||||
}
|
||||
G4double secondaryElectronKineticEnergy = 0.;
|
||||
do
|
||||
{
|
||||
secondaryElectronKineticEnergy = G4UniformRand() * (maximumEnergyTransfer-SiStructure.Energy(shell));
|
||||
|
||||
} while(G4UniformRand()*crossSectionMaximum >=
|
||||
DifferentialCrossSection(particleDefinition, k/eV,(secondaryElectronKineticEnergy+SiStructure.Energy(shell))/eV,shell));
|
||||
return secondaryElectronKineticEnergy;
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
|
||||
|
||||
void G4MicroElecInelasticModel::RandomizeEjectedElectronDirection(G4ParticleDefinition* particleDefinition,
|
||||
G4double k,
|
||||
G4double secKinetic,
|
||||
G4double & cosTheta,
|
||||
G4double & phi )
|
||||
{
|
||||
if (particleDefinition == G4Electron::ElectronDefinition())
|
||||
{
|
||||
phi = twopi * G4UniformRand();
|
||||
G4double sin2O = (1.-secKinetic/k) / (1.+secKinetic/(2.*electron_mass_c2));
|
||||
cosTheta = std::sqrt(1.-sin2O);
|
||||
}
|
||||
|
||||
if (particleDefinition == G4Proton::ProtonDefinition())
|
||||
{
|
||||
G4double maxSecKinetic = 4.* (electron_mass_c2 / proton_mass_c2) * k;
|
||||
phi = twopi * G4UniformRand();
|
||||
cosTheta = std::sqrt(secKinetic / maxSecKinetic);
|
||||
}
|
||||
|
||||
else
|
||||
{
|
||||
G4double maxSecKinetic = 4.* (electron_mass_c2 / particleDefinition->GetPDGMass()) * k;
|
||||
phi = twopi * G4UniformRand();
|
||||
cosTheta = std::sqrt(secKinetic / maxSecKinetic);
|
||||
}
|
||||
}
|
||||
|
||||
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
|
||||
|
||||
double G4MicroElecInelasticModel::DifferentialCrossSection(G4ParticleDefinition * particleDefinition,
|
||||
G4double k,
|
||||
G4double energyTransfer,
|
||||
G4int LevelIndex)
|
||||
{
|
||||
G4double sigma = 0.;
|
||||
|
||||
if (energyTransfer >= SiStructure.Energy(LevelIndex))
|
||||
{
|
||||
G4double valueT1 = 0;
|
||||
G4double valueT2 = 0;
|
||||
G4double valueE21 = 0;
|
||||
G4double valueE22 = 0;
|
||||
G4double valueE12 = 0;
|
||||
G4double valueE11 = 0;
|
||||
|
||||
G4double xs11 = 0;
|
||||
G4double xs12 = 0;
|
||||
G4double xs21 = 0;
|
||||
G4double xs22 = 0;
|
||||
|
||||
if (particleDefinition == G4Electron::ElectronDefinition())
|
||||
{
|
||||
// k should be in eV and energy transfer eV also
|
||||
|
||||
std::vector<double>::iterator t2 = std::upper_bound(eTdummyVec.begin(),eTdummyVec.end(), k);
|
||||
std::vector<double>::iterator t1 = t2-1;
|
||||
// SI : the following condition avoids situations where energyTransfer >last vector element
|
||||
if (energyTransfer <= eVecm[(*t1)].back() && energyTransfer <= eVecm[(*t2)].back() )
|
||||
{
|
||||
std::vector<double>::iterator e12 = std::upper_bound(eVecm[(*t1)].begin(),eVecm[(*t1)].end(), energyTransfer);
|
||||
std::vector<double>::iterator e11 = e12-1;
|
||||
|
||||
std::vector<double>::iterator e22 = std::upper_bound(eVecm[(*t2)].begin(),eVecm[(*t2)].end(), energyTransfer);
|
||||
std::vector<double>::iterator e21 = e22-1;
|
||||
|
||||
valueT1 =*t1;
|
||||
valueT2 =*t2;
|
||||
valueE21 =*e21;
|
||||
valueE22 =*e22;
|
||||
valueE12 =*e12;
|
||||
valueE11 =*e11;
|
||||
|
||||
xs11 = eDiffCrossSectionData[LevelIndex][valueT1][valueE11];
|
||||
xs12 = eDiffCrossSectionData[LevelIndex][valueT1][valueE12];
|
||||
xs21 = eDiffCrossSectionData[LevelIndex][valueT2][valueE21];
|
||||
xs22 = eDiffCrossSectionData[LevelIndex][valueT2][valueE22];
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
if (particleDefinition == G4Proton::ProtonDefinition())
|
||||
{
|
||||
// k should be in eV and energy transfer eV also
|
||||
std::vector<double>::iterator t2 = std::upper_bound(pTdummyVec.begin(),pTdummyVec.end(), k);
|
||||
std::vector<double>::iterator t1 = t2-1;
|
||||
if (energyTransfer <= pVecm[(*t1)].back() && energyTransfer <= pVecm[(*t2)].back() )
|
||||
{
|
||||
std::vector<double>::iterator e12 = std::upper_bound(pVecm[(*t1)].begin(),pVecm[(*t1)].end(), energyTransfer);
|
||||
std::vector<double>::iterator e11 = e12-1;
|
||||
|
||||
std::vector<double>::iterator e22 = std::upper_bound(pVecm[(*t2)].begin(),pVecm[(*t2)].end(), energyTransfer);
|
||||
std::vector<double>::iterator e21 = e22-1;
|
||||
|
||||
valueT1 =*t1;
|
||||
valueT2 =*t2;
|
||||
valueE21 =*e21;
|
||||
valueE22 =*e22;
|
||||
valueE12 =*e12;
|
||||
valueE11 =*e11;
|
||||
|
||||
xs11 = pDiffCrossSectionData[LevelIndex][valueT1][valueE11];
|
||||
xs12 = pDiffCrossSectionData[LevelIndex][valueT1][valueE12];
|
||||
xs21 = pDiffCrossSectionData[LevelIndex][valueT2][valueE21];
|
||||
xs22 = pDiffCrossSectionData[LevelIndex][valueT2][valueE22];
|
||||
}
|
||||
}
|
||||
|
||||
G4double xsProduct = xs11 * xs12 * xs21 * xs22;
|
||||
if (xsProduct != 0.)
|
||||
{
|
||||
sigma = QuadInterpolator( valueE11, valueE12,
|
||||
valueE21, valueE22,
|
||||
xs11, xs12,
|
||||
xs21, xs22,
|
||||
valueT1, valueT2,
|
||||
k, energyTransfer);
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
return sigma;
|
||||
}
|
||||
|
||||
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
|
||||
|
||||
G4double G4MicroElecInelasticModel::LogLogInterpolate(G4double e1,
|
||||
G4double e2,
|
||||
G4double e,
|
||||
G4double xs1,
|
||||
G4double xs2)
|
||||
{
|
||||
G4double a = (std::log10(xs2)-std::log10(xs1)) / (std::log10(e2)-std::log10(e1));
|
||||
G4double b = std::log10(xs2) - a*std::log10(e2);
|
||||
G4double sigma = a*std::log10(e) + b;
|
||||
G4double value = (std::pow(10.,sigma));
|
||||
return value;
|
||||
}
|
||||
|
||||
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
|
||||
|
||||
G4double G4MicroElecInelasticModel::QuadInterpolator(G4double e11, G4double e12,
|
||||
G4double e21, G4double e22,
|
||||
G4double xs11, G4double xs12,
|
||||
G4double xs21, G4double xs22,
|
||||
G4double t1, G4double t2,
|
||||
G4double t, G4double e)
|
||||
{
|
||||
G4double interpolatedvalue1 = LogLogInterpolate(e11, e12, e, xs11, xs12);
|
||||
G4double interpolatedvalue2 = LogLogInterpolate(e21, e22, e, xs21, xs22);
|
||||
G4double value = LogLogInterpolate(t1, t2, t, interpolatedvalue1, interpolatedvalue2);
|
||||
return value;
|
||||
}
|
||||
|
||||
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
|
||||
|
||||
G4int G4MicroElecInelasticModel::RandomSelect(G4double k, const G4String& particle )
|
||||
{
|
||||
G4int level = 0;
|
||||
|
||||
std::map< G4String,G4MicroElecCrossSectionDataSet*,std::less<G4String> >::iterator pos;
|
||||
pos = tableData.find(particle);
|
||||
|
||||
if (pos != tableData.end())
|
||||
{
|
||||
G4MicroElecCrossSectionDataSet* table = pos->second;
|
||||
|
||||
if (table != 0)
|
||||
{
|
||||
G4double* valuesBuffer = new G4double[table->NumberOfComponents()];
|
||||
const size_t n(table->NumberOfComponents());
|
||||
size_t i(n);
|
||||
G4double value = 0.;
|
||||
|
||||
while (i>0)
|
||||
{
|
||||
i--;
|
||||
valuesBuffer[i] = table->GetComponent(i)->FindValue(k);
|
||||
value += valuesBuffer[i];
|
||||
}
|
||||
|
||||
value *= G4UniformRand();
|
||||
|
||||
i = n;
|
||||
|
||||
while (i > 0)
|
||||
{
|
||||
i--;
|
||||
|
||||
if (valuesBuffer[i] > value)
|
||||
{
|
||||
delete[] valuesBuffer;
|
||||
return i;
|
||||
}
|
||||
value -= valuesBuffer[i];
|
||||
}
|
||||
|
||||
if (valuesBuffer) delete[] valuesBuffer;
|
||||
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
G4Exception("G4MicroElecInelasticModel::RandomSelect","em0002",FatalException,"Model not applicable to particle type.");
|
||||
}
|
||||
|
||||
return level;
|
||||
}
|
||||
|
||||
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
|
||||
|
||||
|
||||
Reference in New Issue
Block a user