[819] | 1 | // |
---|
| 2 | // ******************************************************************** |
---|
| 3 | // * License and Disclaimer * |
---|
| 4 | // * * |
---|
| 5 | // * The Geant4 software is copyright of the Copyright Holders of * |
---|
| 6 | // * the Geant4 Collaboration. It is provided under the terms and * |
---|
| 7 | // * conditions of the Geant4 Software License, included in the file * |
---|
| 8 | // * LICENSE and available at http://cern.ch/geant4/license . These * |
---|
| 9 | // * include a list of copyright holders. * |
---|
| 10 | // * * |
---|
| 11 | // * Neither the authors of this software system, nor their employing * |
---|
| 12 | // * institutes,nor the agencies providing financial support for this * |
---|
| 13 | // * work make any representation or warranty, express or implied, * |
---|
| 14 | // * regarding this software system or assume any liability for its * |
---|
| 15 | // * use. Please see the license in the file LICENSE and URL above * |
---|
| 16 | // * for the full disclaimer and the limitation of liability. * |
---|
| 17 | // * * |
---|
| 18 | // * This code implementation is the result of the scientific and * |
---|
| 19 | // * technical work of the GEANT4 collaboration. * |
---|
| 20 | // * By using, copying, modifying or distributing the software (or * |
---|
| 21 | // * any work based on the software) you agree to acknowledge its * |
---|
| 22 | // * use in resulting scientific publications, and indicate your * |
---|
| 23 | // * acceptance of all terms of the Geant4 Software license. * |
---|
| 24 | // ******************************************************************** |
---|
| 25 | // |
---|
[1055] | 26 | // $Id: G4VEmModel.cc,v 1.27 2009/05/26 15:00:49 vnivanch Exp $ |
---|
| 27 | // GEANT4 tag $Name: geant4-09-03-beta-cand-01 $ |
---|
[819] | 28 | // |
---|
| 29 | // ------------------------------------------------------------------- |
---|
| 30 | // |
---|
| 31 | // GEANT4 Class file |
---|
| 32 | // |
---|
| 33 | // |
---|
| 34 | // File name: G4VEmModel |
---|
| 35 | // |
---|
| 36 | // Author: Vladimir Ivanchenko |
---|
| 37 | // |
---|
| 38 | // Creation date: 25.07.2005 |
---|
| 39 | // |
---|
| 40 | // Modifications: |
---|
| 41 | // 25.10.2005 Set default highLimit=100.TeV (V.Ivanchenko) |
---|
| 42 | // 06.02.2006 add method ComputeMeanFreePath() (mma) |
---|
[1055] | 43 | // 16.02.2009 Move implementations of virtual methods to source (VI) |
---|
[819] | 44 | // |
---|
| 45 | // |
---|
| 46 | // Class Description: |
---|
| 47 | // |
---|
| 48 | // Abstract interface to energy loss models |
---|
| 49 | |
---|
| 50 | // ------------------------------------------------------------------- |
---|
| 51 | // |
---|
| 52 | |
---|
| 53 | #include "G4VEmModel.hh" |
---|
[961] | 54 | #include "G4LossTableManager.hh" |
---|
| 55 | #include "G4ProductionCutsTable.hh" |
---|
[1055] | 56 | #include "G4ParticleChangeForLoss.hh" |
---|
| 57 | #include "G4ParticleChangeForGamma.hh" |
---|
[819] | 58 | |
---|
| 59 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo...... |
---|
| 60 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo...... |
---|
| 61 | |
---|
| 62 | G4VEmModel::G4VEmModel(const G4String& nam): |
---|
[961] | 63 | fluc(0), name(nam), lowLimit(0.1*keV), highLimit(100.0*TeV), |
---|
| 64 | polarAngleLimit(0.0),secondaryThreshold(DBL_MAX),theLPMflag(false), |
---|
[1055] | 65 | pParticleChange(0),nuclearStopping(false), |
---|
| 66 | currentCouple(0),currentElement(0), |
---|
| 67 | nsec(5),flagDeexcitation(false) |
---|
[961] | 68 | { |
---|
| 69 | xsec.resize(nsec); |
---|
| 70 | nSelectors = 0; |
---|
| 71 | G4LossTableManager::Instance()->Register(this); |
---|
| 72 | } |
---|
[819] | 73 | |
---|
| 74 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo...... |
---|
| 75 | |
---|
| 76 | G4VEmModel::~G4VEmModel() |
---|
[961] | 77 | { |
---|
| 78 | G4LossTableManager::Instance()->DeRegister(this); |
---|
| 79 | G4int n = elmSelectors.size(); |
---|
| 80 | if(n > 0) { |
---|
| 81 | for(G4int i=0; i<n; i++) { |
---|
| 82 | delete elmSelectors[i]; |
---|
| 83 | } |
---|
| 84 | } |
---|
| 85 | } |
---|
[819] | 86 | |
---|
| 87 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo...... |
---|
| 88 | |
---|
[1055] | 89 | G4ParticleChangeForLoss* G4VEmModel::GetParticleChangeForLoss() |
---|
[1007] | 90 | { |
---|
[1055] | 91 | G4ParticleChangeForLoss* p = 0; |
---|
| 92 | if (pParticleChange) { |
---|
| 93 | p = static_cast<G4ParticleChangeForLoss*>(pParticleChange); |
---|
| 94 | } else { |
---|
| 95 | p = new G4ParticleChangeForLoss(); |
---|
[1007] | 96 | } |
---|
[1055] | 97 | return p; |
---|
[1007] | 98 | } |
---|
| 99 | |
---|
| 100 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo...... |
---|
| 101 | |
---|
[1055] | 102 | G4ParticleChangeForGamma* G4VEmModel::GetParticleChangeForGamma() |
---|
[1007] | 103 | { |
---|
[1055] | 104 | G4ParticleChangeForGamma* p = 0; |
---|
| 105 | if (pParticleChange) { |
---|
| 106 | p = static_cast<G4ParticleChangeForGamma*>(pParticleChange); |
---|
| 107 | } else { |
---|
| 108 | p = new G4ParticleChangeForGamma(); |
---|
| 109 | } |
---|
| 110 | return p; |
---|
[1007] | 111 | } |
---|
| 112 | |
---|
| 113 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo...... |
---|
| 114 | |
---|
[961] | 115 | void G4VEmModel::InitialiseElementSelectors(const G4ParticleDefinition* p, |
---|
| 116 | const G4DataVector& cuts) |
---|
| 117 | { |
---|
[1055] | 118 | // initialise before run |
---|
| 119 | flagDeexcitation = false; |
---|
| 120 | |
---|
[961] | 121 | G4int nbins = G4int(std::log10(highLimit/lowLimit) + 0.5); |
---|
| 122 | if(nbins < 3) nbins = 3; |
---|
| 123 | G4bool spline = G4LossTableManager::Instance()->SplineFlag(); |
---|
| 124 | |
---|
| 125 | G4ProductionCutsTable* theCoupleTable= |
---|
| 126 | G4ProductionCutsTable::GetProductionCutsTable(); |
---|
| 127 | G4int numOfCouples = theCoupleTable->GetTableSize(); |
---|
| 128 | |
---|
| 129 | // prepare vector |
---|
[1055] | 130 | if(numOfCouples > nSelectors) elmSelectors.reserve(numOfCouples); |
---|
[961] | 131 | |
---|
| 132 | // initialise vector |
---|
| 133 | for(G4int i=0; i<numOfCouples; i++) { |
---|
| 134 | const G4MaterialCutsCouple* couple = |
---|
| 135 | theCoupleTable->GetMaterialCutsCouple(i); |
---|
| 136 | const G4Material* material = couple->GetMaterial(); |
---|
| 137 | G4int idx = couple->GetIndex(); |
---|
| 138 | |
---|
| 139 | // selector already exist check if should be deleted |
---|
| 140 | G4bool create = true; |
---|
[1055] | 141 | if(i < nSelectors) { |
---|
| 142 | if(elmSelectors[i]) { |
---|
| 143 | if(material == elmSelectors[i]->GetMaterial()) create = false; |
---|
| 144 | else delete elmSelectors[i]; |
---|
| 145 | } |
---|
| 146 | } else { |
---|
| 147 | nSelectors++; |
---|
| 148 | elmSelectors.push_back(0); |
---|
[961] | 149 | } |
---|
| 150 | if(create) { |
---|
| 151 | elmSelectors[i] = new G4EmElementSelector(this,material,nbins, |
---|
| 152 | lowLimit,highLimit,spline); |
---|
| 153 | } |
---|
| 154 | elmSelectors[i]->Initialise(p, cuts[idx]); |
---|
| 155 | //elmSelectors[i]->Dump(p); |
---|
| 156 | } |
---|
| 157 | } |
---|
| 158 | |
---|
| 159 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo...... |
---|
| 160 | |
---|
[1055] | 161 | G4double G4VEmModel::ComputeDEDXPerVolume(const G4Material*, |
---|
| 162 | const G4ParticleDefinition*, |
---|
| 163 | G4double,G4double) |
---|
| 164 | { |
---|
| 165 | return 0.0; |
---|
| 166 | } |
---|
[961] | 167 | |
---|
[1055] | 168 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo...... |
---|
| 169 | |
---|
| 170 | G4double G4VEmModel::CrossSectionPerVolume(const G4Material* material, |
---|
| 171 | const G4ParticleDefinition* p, |
---|
| 172 | G4double ekin, |
---|
| 173 | G4double emin, |
---|
| 174 | G4double emax) |
---|
| 175 | { |
---|
| 176 | SetupForMaterial(p, material, ekin); |
---|
| 177 | G4double cross = 0.0; |
---|
| 178 | const G4ElementVector* theElementVector = material->GetElementVector(); |
---|
| 179 | const G4double* theAtomNumDensityVector = material->GetVecNbOfAtomsPerVolume(); |
---|
| 180 | G4int nelm = material->GetNumberOfElements(); |
---|
| 181 | if(nelm > nsec) { |
---|
| 182 | xsec.resize(nelm); |
---|
| 183 | nsec = nelm; |
---|
| 184 | } |
---|
| 185 | for (G4int i=0; i<nelm; i++) { |
---|
| 186 | cross += theAtomNumDensityVector[i]* |
---|
| 187 | ComputeCrossSectionPerAtom(p,(*theElementVector)[i],ekin,emin,emax); |
---|
| 188 | xsec[i] = cross; |
---|
| 189 | } |
---|
| 190 | return cross; |
---|
| 191 | } |
---|
| 192 | |
---|
| 193 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo...... |
---|
| 194 | |
---|
| 195 | G4double G4VEmModel::ComputeCrossSectionPerAtom(const G4ParticleDefinition*, |
---|
| 196 | G4double, G4double, G4double, |
---|
| 197 | G4double, G4double) |
---|
| 198 | { |
---|
| 199 | return 0.0; |
---|
| 200 | } |
---|
| 201 | |
---|
| 202 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo...... |
---|
| 203 | |
---|
| 204 | G4double G4VEmModel::MinEnergyCut(const G4ParticleDefinition*, |
---|
| 205 | const G4MaterialCutsCouple*) |
---|
| 206 | { |
---|
| 207 | return 0.0; |
---|
| 208 | } |
---|
| 209 | |
---|
| 210 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo...... |
---|
| 211 | |
---|
| 212 | G4double G4VEmModel::GetChargeSquareRatio(const G4ParticleDefinition* p, |
---|
| 213 | const G4Material*, G4double) |
---|
| 214 | { |
---|
| 215 | G4double q = p->GetPDGCharge()/CLHEP::eplus; |
---|
| 216 | return q*q; |
---|
| 217 | } |
---|
| 218 | |
---|
| 219 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo...... |
---|
| 220 | |
---|
| 221 | G4double G4VEmModel::GetParticleCharge(const G4ParticleDefinition* p, |
---|
| 222 | const G4Material*, G4double) |
---|
| 223 | { |
---|
| 224 | return p->GetPDGCharge(); |
---|
| 225 | } |
---|
| 226 | |
---|
| 227 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo...... |
---|
| 228 | |
---|
| 229 | void G4VEmModel::CorrectionsAlongStep(const G4MaterialCutsCouple*, |
---|
| 230 | const G4DynamicParticle*, |
---|
| 231 | G4double&,G4double&,G4double) |
---|
| 232 | {} |
---|
| 233 | |
---|
| 234 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo...... |
---|
| 235 | |
---|
| 236 | void G4VEmModel::SampleDeexcitationAlongStep(const G4Material*, |
---|
| 237 | const G4Track&, |
---|
| 238 | G4double& ) |
---|
| 239 | {} |
---|
| 240 | |
---|
| 241 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo...... |
---|
| 242 | |
---|
| 243 | G4double G4VEmModel::MaxSecondaryEnergy(const G4ParticleDefinition*, |
---|
| 244 | G4double kineticEnergy) |
---|
| 245 | { |
---|
| 246 | return kineticEnergy; |
---|
| 247 | } |
---|
| 248 | |
---|
| 249 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo...... |
---|
| 250 | |
---|
| 251 | void G4VEmModel::DefineForRegion(const G4Region*) |
---|
| 252 | {} |
---|
| 253 | |
---|
| 254 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo...... |
---|
| 255 | |
---|
| 256 | void G4VEmModel::SetupForMaterial(const G4ParticleDefinition*, |
---|
| 257 | const G4Material*, G4double) |
---|
| 258 | {} |
---|
| 259 | |
---|
| 260 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo...... |
---|