1 | // |
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2 | // ******************************************************************** |
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3 | // * License and Disclaimer * |
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4 | // * * |
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5 | // * The Geant4 software is copyright of the Copyright Holders of * |
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6 | // * the Geant4 Collaboration. It is provided under the terms and * |
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7 | // * conditions of the Geant4 Software License, included in the file * |
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8 | // * LICENSE and available at http://cern.ch/geant4/license . These * |
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9 | // * include a list of copyright holders. * |
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10 | // * * |
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11 | // * Neither the authors of this software system, nor their employing * |
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12 | // * institutes,nor the agencies providing financial support for this * |
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13 | // * work make any representation or warranty, express or implied, * |
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14 | // * regarding this software system or assume any liability for its * |
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15 | // * use. Please see the license in the file LICENSE and URL above * |
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16 | // * for the full disclaimer and the limitation of liability. * |
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17 | // * * |
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18 | // * This code implementation is the result of the scientific and * |
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19 | // * technical work of the GEANT4 collaboration. * |
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20 | // * By using, copying, modifying or distributing the software (or * |
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21 | // * any work based on the software) you agree to acknowledge its * |
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22 | // * use in resulting scientific publications, and indicate your * |
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23 | // * acceptance of all terms of the Geant4 Software license. * |
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24 | // ******************************************************************** |
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25 | // |
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26 | // $Id: G4eBremsstrahlung.cc,v 1.48 2007/05/23 08:47:34 vnivanch Exp $ |
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27 | // GEANT4 tag $Name: geant4-09-01-patch-02 $ |
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28 | // |
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29 | // ------------------------------------------------------------------- |
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30 | // |
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31 | // GEANT4 Class file |
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32 | // |
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33 | // |
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34 | // File name: G4eBremsstrahlung |
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35 | // |
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36 | // Author: Michel Maire |
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37 | // |
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38 | // Creation date: 26.06.1996 |
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39 | // |
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40 | // Modifications: |
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41 | // |
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42 | // 26-09-96 extension of the total crosssection above 100 GeV, M.Maire |
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43 | // 1-10-96 new type G4OrderedTable; ComputePartialSumSigma(), M.Maire |
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44 | // 16-10-96 DoIt() call to the non static GetEnergyCuts(), L.Urban |
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45 | // 13-12-96 Sign corrected in grejmax and greject |
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46 | // error definition of screenvar, L.Urban |
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47 | // 20-03-97 new energy loss+ionisation+brems scheme, L.Urban |
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48 | // 07-04-98 remove 'tracking cut' of the diffracted particle, MMa |
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49 | // 13-08-98 new methods SetBining() PrintInfo() |
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50 | // 03-03-99 Bug fixed in LPM effect, L.Urban |
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51 | // 10-02-00 modifications , new e.m. structure, L.Urban |
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52 | // 07-08-00 new cross section/en.loss parametrisation, LPM flag , L.Urban |
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53 | // 21-09-00 corrections in the LPM implementation, L.Urban |
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54 | // 28-05-01 V.Ivanchenko minor changes to provide ANSI -wall compilation |
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55 | // 09-08-01 new methods Store/Retrieve PhysicsTable (mma) |
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56 | // 17-09-01 migration of Materials to pure STL (mma) |
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57 | // 21-09-01 completion of RetrievePhysicsTable() (mma) |
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58 | // 29-10-01 all static functions no more inlined (mma) |
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59 | // 08-11-01 particleMass becomes a local variable |
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60 | // 30-04-02 V.Ivanchenko update to new design |
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61 | // 23-12-02 Change interface in order to move to cut per region (VI) |
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62 | // 26-12-02 Secondary production moved to derived classes (VI) |
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63 | // 23-05-03 Define default integral + BohrFluctuations (V.Ivanchenko) |
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64 | // 08-08-03 STD substitute standard (V.Ivanchenko) |
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65 | // 12-11-03 G4EnergyLossSTD -> G4EnergyLossProcess (V.Ivanchenko) |
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66 | // 04-11-04 add gamma threshold (V.Ivanchenko) |
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67 | // 08-11-04 Migration to new interface of Store/Retrieve tables (V.Ivantchenko) |
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68 | // 08-04-05 Major optimisation of internal interfaces (V.Ivantchenko) |
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69 | // 22-05-06 Use gammaThreshold from manager (V.Ivantchenko) |
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70 | // 15-01-07 use SetEmModel() from G4VEnergyLossProcess (mma) |
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71 | // |
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72 | // ------------------------------------------------------------------- |
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73 | // |
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74 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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75 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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76 | |
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77 | #include "G4eBremsstrahlung.hh" |
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78 | #include "G4Gamma.hh" |
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79 | #include "G4eBremsstrahlungModel.hh" |
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80 | #include "G4UniversalFluctuation.hh" |
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81 | #include "G4UnitsTable.hh" |
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82 | #include "G4LossTableManager.hh" |
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83 | |
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84 | #include "G4ProductionCutsTable.hh" |
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85 | #include "G4MaterialCutsCouple.hh" |
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86 | |
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87 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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88 | |
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89 | using namespace std; |
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90 | |
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91 | G4eBremsstrahlung::G4eBremsstrahlung(const G4String& name): |
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92 | G4VEnergyLossProcess(name), |
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93 | isInitialised(false) |
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94 | {} |
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95 | |
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96 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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97 | |
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98 | G4eBremsstrahlung::~G4eBremsstrahlung() |
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99 | {} |
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100 | |
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101 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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102 | |
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103 | void G4eBremsstrahlung::InitialiseEnergyLossProcess( |
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104 | const G4ParticleDefinition* p, |
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105 | const G4ParticleDefinition*) |
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106 | { |
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107 | if(!isInitialised) { |
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108 | particle = p; |
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109 | SetSecondaryParticle(G4Gamma::Gamma()); |
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110 | SetIonisation(false); |
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111 | if (!EmModel()) SetEmModel(new G4eBremsstrahlungModel()); |
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112 | EmModel()->SetLowEnergyLimit (100*eV); |
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113 | EmModel()->SetHighEnergyLimit(100*TeV); |
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114 | if (!FluctModel()) SetFluctModel(new G4UniversalFluctuation()); |
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115 | |
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116 | AddEmModel(1, EmModel(), FluctModel()); |
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117 | isInitialised = true; |
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118 | } |
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119 | G4LossTableManager* man = G4LossTableManager::Instance(); |
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120 | dynamic_cast<G4eBremsstrahlungModel*>(EmModel()) |
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121 | ->SetEnergyThreshold(man->BremsstrahlungTh()); |
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122 | dynamic_cast<G4eBremsstrahlungModel*>(EmModel()) |
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123 | ->SetLPMflag(man->LPMFlag()); |
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124 | } |
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125 | |
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126 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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127 | |
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128 | void G4eBremsstrahlung::PrintInfo() |
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129 | { |
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130 | if(EmModel()) { |
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131 | G4cout << " Total cross sections and sampling from " |
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132 | << EmModel()->GetName() << " model" |
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133 | << " (based on the EEDL data library) " |
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134 | << "\n Good description from 1 KeV to 100 GeV, " |
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135 | << "log scale extrapolation above 100 GeV." |
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136 | << " LPM flag " |
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137 | << dynamic_cast<G4eBremsstrahlungModel*>(EmModel())->LPMflag() |
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138 | << G4endl; |
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139 | G4double eth = dynamic_cast<G4eBremsstrahlungModel*>(EmModel())->EnergyThreshold(); |
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140 | if(eth < DBL_MIN) |
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141 | G4cout << " HighEnergyThreshold(GeV)= " << eth/GeV |
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142 | << G4endl; |
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143 | } |
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144 | } |
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145 | |
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146 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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