[968] | 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 | // |
---|
[1192] | 26 | // $Id: G4CrossSectionPsCreationChampionPartial.cc,v 1.2 2009/06/10 13:32:36 mantero Exp $ |
---|
[1228] | 27 | // GEANT4 tag $Name: geant4-09-03 $ |
---|
[968] | 28 | // ------------------------------------------------------------------- |
---|
| 29 | |
---|
| 30 | #include "G4CrossSectionPsCreationChampionPartial.hh" |
---|
| 31 | |
---|
| 32 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
---|
| 33 | |
---|
| 34 | G4CrossSectionPsCreationChampionPartial::G4CrossSectionPsCreationChampionPartial() |
---|
| 35 | { |
---|
| 36 | numberOfPartialCrossSections=2; |
---|
| 37 | |
---|
| 38 | G4double scaleFactor = 1e-16*cm*cm; |
---|
| 39 | |
---|
| 40 | G4DNACrossSectionDataSet* tablePositronium1s = |
---|
| 41 | new G4DNACrossSectionDataSet(new G4LogLogInterpolation, eV, scaleFactor); |
---|
| 42 | |
---|
| 43 | G4DNACrossSectionDataSet* tablePositronium2s = |
---|
| 44 | new G4DNACrossSectionDataSet(new G4LogLogInterpolation, eV, scaleFactor); |
---|
| 45 | |
---|
| 46 | G4String positronium1s("positronium1s"); |
---|
| 47 | G4String filePositronium1s("dna/sigma_positronium1s_creation_champion"); |
---|
| 48 | |
---|
| 49 | G4String positronium2s("positronium2s"); |
---|
| 50 | G4String filePositronium2s("dna/sigma_positronium2s_creation_champion"); |
---|
| 51 | |
---|
| 52 | tablePositronium1s->LoadData(filePositronium1s); |
---|
| 53 | tablePositronium2s->LoadData(filePositronium2s); |
---|
| 54 | |
---|
| 55 | tableData[positronium1s] = tablePositronium1s; |
---|
| 56 | tableData[positronium2s] = tablePositronium2s; |
---|
| 57 | } |
---|
| 58 | |
---|
| 59 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
---|
| 60 | |
---|
| 61 | G4CrossSectionPsCreationChampionPartial::~G4CrossSectionPsCreationChampionPartial() |
---|
| 62 | { |
---|
| 63 | std::map< G4String,G4DNACrossSectionDataSet*,std::less<G4String> >::iterator pos; |
---|
| 64 | for (pos = tableData.begin(); pos != tableData.end(); ++pos) |
---|
| 65 | { |
---|
| 66 | G4DNACrossSectionDataSet* table = pos->second; |
---|
| 67 | delete table; |
---|
| 68 | } |
---|
| 69 | } |
---|
| 70 | |
---|
| 71 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
---|
| 72 | |
---|
| 73 | G4double G4CrossSectionPsCreationChampionPartial::CrossSection |
---|
| 74 | (G4double k, G4int index, const G4ParticleDefinition* particleDefinition) |
---|
| 75 | { |
---|
| 76 | if (particleDefinition != G4Positron::PositronDefinition()) |
---|
| 77 | G4Exception("G4CrossSectionPsCreationChampionPartial::CrossSection: attempting to calculate cross section for wrong particle"); |
---|
| 78 | |
---|
| 79 | G4double sigma = 0.; |
---|
| 80 | |
---|
| 81 | std::map< G4String,G4DNACrossSectionDataSet*,std::less<G4String> >::iterator pos; |
---|
| 82 | |
---|
| 83 | if (index==0) |
---|
| 84 | { |
---|
| 85 | pos = tableData.find("positronium1s"); |
---|
| 86 | if (pos != tableData.end()) |
---|
| 87 | { |
---|
| 88 | G4DNACrossSectionDataSet* table = pos->second; |
---|
| 89 | if (table != 0) sigma = table->FindValue(k); |
---|
| 90 | } |
---|
| 91 | } |
---|
| 92 | |
---|
| 93 | if (index==1) |
---|
| 94 | { |
---|
| 95 | pos = tableData.find("positronium2s"); |
---|
| 96 | if (pos != tableData.end()) |
---|
| 97 | { |
---|
| 98 | G4DNACrossSectionDataSet* table = pos->second; |
---|
| 99 | if (table != 0) sigma = table->FindValue(k); |
---|
| 100 | } |
---|
| 101 | } |
---|
| 102 | return sigma; |
---|
| 103 | } |
---|
| 104 | |
---|
| 105 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
---|
| 106 | |
---|
| 107 | G4int G4CrossSectionPsCreationChampionPartial::RandomSelectState |
---|
| 108 | (G4double k, const G4ParticleDefinition* particleDefinition) |
---|
| 109 | { |
---|
| 110 | const G4int n = numberOfPartialCrossSections; |
---|
| 111 | G4double* values(new G4double[n]); |
---|
| 112 | G4double value = 0; |
---|
| 113 | G4int i = n; |
---|
| 114 | |
---|
| 115 | while (i>0) |
---|
| 116 | { |
---|
| 117 | i--; |
---|
| 118 | values[i]=CrossSection(k, i, particleDefinition); |
---|
| 119 | value+=values[i]; |
---|
| 120 | } |
---|
| 121 | |
---|
| 122 | value*=G4UniformRand(); |
---|
| 123 | |
---|
| 124 | i=n; |
---|
| 125 | while (i>0) |
---|
| 126 | { |
---|
| 127 | i--; |
---|
| 128 | |
---|
| 129 | if (values[i]>value) |
---|
| 130 | break; |
---|
| 131 | |
---|
| 132 | value-=values[i]; |
---|
| 133 | } |
---|
| 134 | |
---|
| 135 | delete[] values; |
---|
| 136 | |
---|
| 137 | return i; |
---|
| 138 | } |
---|
| 139 | |
---|
| 140 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
---|
| 141 | |
---|
| 142 | G4int G4CrossSectionPsCreationChampionPartial::RandomSelectShell |
---|
| 143 | (G4double k, const G4ParticleDefinition*, G4int state) |
---|
| 144 | { |
---|
| 145 | G4int level = 0; |
---|
| 146 | |
---|
| 147 | std::map< G4String,G4DNACrossSectionDataSet*,std::less<G4String> >::iterator pos; |
---|
| 148 | |
---|
| 149 | if (state==0) pos = tableData.find("positronium1s"); |
---|
| 150 | if (state==1) pos = tableData.find("positronium2s"); |
---|
| 151 | |
---|
| 152 | if (pos != tableData.end()) |
---|
| 153 | { |
---|
| 154 | G4DNACrossSectionDataSet* table = pos->second; |
---|
| 155 | |
---|
| 156 | if (table != 0) |
---|
| 157 | { |
---|
| 158 | G4double* valuesBuffer = new G4double[table->NumberOfComponents()]; |
---|
| 159 | |
---|
| 160 | const size_t n(table->NumberOfComponents()); |
---|
| 161 | size_t i(n); |
---|
| 162 | G4double value = 0.; |
---|
| 163 | |
---|
| 164 | while (i>0) |
---|
| 165 | { |
---|
| 166 | i--; |
---|
| 167 | valuesBuffer[i] = table->GetComponent(i)->FindValue(k); |
---|
| 168 | value += valuesBuffer[i]; |
---|
| 169 | } |
---|
| 170 | |
---|
| 171 | value *= G4UniformRand(); |
---|
| 172 | |
---|
| 173 | i = n; |
---|
| 174 | |
---|
| 175 | while (i > 0) |
---|
| 176 | { |
---|
| 177 | i--; |
---|
| 178 | |
---|
| 179 | if (valuesBuffer[i] > value) |
---|
| 180 | { |
---|
| 181 | delete[] valuesBuffer; |
---|
| 182 | return i; |
---|
| 183 | } |
---|
| 184 | value -= valuesBuffer[i]; |
---|
| 185 | } |
---|
| 186 | |
---|
| 187 | if (valuesBuffer) delete[] valuesBuffer; |
---|
| 188 | |
---|
| 189 | } |
---|
| 190 | } |
---|
| 191 | else |
---|
| 192 | { |
---|
| 193 | G4Exception("G4CrossSectionPsCreationChampionPartial::RandomSelectShell: attempting to calculate cross section for wrong particle"); |
---|
| 194 | } |
---|
| 195 | |
---|
| 196 | return level; |
---|
| 197 | } |
---|
| 198 | |
---|
| 199 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
---|
| 200 | |
---|
| 201 | G4double G4CrossSectionPsCreationChampionPartial::Sum |
---|
| 202 | (G4double k, const G4ParticleDefinition* particleDefinition) |
---|
| 203 | { |
---|
| 204 | G4double totalCrossSection = 0.; |
---|
| 205 | |
---|
| 206 | for (G4int i=0; i<numberOfPartialCrossSections; i++) |
---|
| 207 | { |
---|
| 208 | totalCrossSection += CrossSection(k,i,particleDefinition); |
---|
| 209 | } |
---|
| 210 | return totalCrossSection; |
---|
| 211 | } |
---|