[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 | // |
---|
| 26 | // ------------------------------------------------------------------- |
---|
| 27 | // |
---|
| 28 | // GEANT4 Class file |
---|
| 29 | // |
---|
| 30 | // |
---|
| 31 | // File name: G4hShellCrossSectionDoubleExp.cc |
---|
| 32 | // |
---|
| 33 | // Author: Simona Saliceti (simona.saliceti@ge.infn.it) |
---|
| 34 | // |
---|
| 35 | // History: |
---|
| 36 | // ----------- |
---|
| 37 | // From 23 Oct 2001 A. Mantero G4hShellCrossSection |
---|
| 38 | // 30/03/2004 Simona Saliceti 1st implementation |
---|
| 39 | // ------------------------------------------------------------------- |
---|
| 40 | // Class Description: |
---|
| 41 | // Empiric Model for shell cross sections in proton ionisation |
---|
| 42 | // ------------------------------------------------------------------- |
---|
[1315] | 43 | // $Id: G4hShellCrossSectionDoubleExp.cc,v 1.11 2010/02/05 08:54:12 sincerti Exp $ |
---|
[1347] | 44 | // GEANT4 tag $Name: geant4-09-04-ref-00 $ |
---|
[819] | 45 | |
---|
| 46 | #include "globals.hh" |
---|
| 47 | #include <vector> |
---|
| 48 | #include "G4hShellCrossSectionDoubleExp.hh" |
---|
| 49 | #include "G4AtomicTransitionManager.hh" |
---|
| 50 | #include "G4Electron.hh" |
---|
| 51 | #include "G4hShellCrossSectionDoubleExpData.hh" |
---|
| 52 | #include "G4Proton.hh" |
---|
| 53 | #include "G4ParticleDefinition.hh" |
---|
| 54 | |
---|
| 55 | G4hShellCrossSectionDoubleExp::G4hShellCrossSectionDoubleExp() |
---|
| 56 | { |
---|
| 57 | kShellData = new G4hShellCrossSectionDoubleExpData(); |
---|
[1315] | 58 | |
---|
| 59 | atomTotalCrossSection = 0.; |
---|
[819] | 60 | } |
---|
| 61 | |
---|
| 62 | G4hShellCrossSectionDoubleExp::~G4hShellCrossSectionDoubleExp() |
---|
| 63 | { } |
---|
| 64 | |
---|
| 65 | std::vector<G4double> G4hShellCrossSectionDoubleExp::GetCrossSection(G4int Z, |
---|
| 66 | G4double incidentEnergy, |
---|
| 67 | G4double mass, |
---|
| 68 | G4double deltaEnergy, |
---|
| 69 | G4bool testFlag) const |
---|
| 70 | { |
---|
| 71 | mass = 0.0; |
---|
| 72 | deltaEnergy = 0.0; |
---|
| 73 | |
---|
| 74 | std::vector<G4double> aCrossSection; |
---|
| 75 | |
---|
| 76 | // Fill the vector of cross sections with the value just calculated |
---|
| 77 | aCrossSection.push_back(GetCrossSectionDoubleExp(Z,incidentEnergy)); |
---|
| 78 | |
---|
| 79 | if (testFlag) |
---|
| 80 | { |
---|
| 81 | G4cout <<"Element: " <<Z<<" Particle Energy: "<<incidentEnergy/MeV<<" MeV" <<G4endl; |
---|
| 82 | G4cout <<"Cross Section: "<<aCrossSection[0]/barn<<" barns"<< G4endl; |
---|
| 83 | } |
---|
| 84 | return aCrossSection; |
---|
| 85 | } |
---|
| 86 | |
---|
| 87 | //This function calculated the cross section with the Empiric model |
---|
| 88 | G4double G4hShellCrossSectionDoubleExp::GetCrossSectionDoubleExp(G4int Z, |
---|
| 89 | G4double incidentEnergy) const |
---|
| 90 | { |
---|
| 91 | // Vector that stores the calculated cross-sections for each shell: |
---|
| 92 | G4double crossSectionsInBarn = 0.0; |
---|
| 93 | G4double crossSections = 0.0; |
---|
| 94 | |
---|
| 95 | std::vector<std::vector<G4double>*> parVec = kShellData->GetParam(Z); |
---|
| 96 | std::vector<G4double>* energyVec = parVec[0]; |
---|
| 97 | std::vector<G4double>* par1Vec = parVec[1]; |
---|
| 98 | std::vector<G4double>* par2Vec = parVec[2]; |
---|
| 99 | |
---|
| 100 | std::vector<G4double>::iterator i = (*par1Vec).begin(); |
---|
| 101 | |
---|
| 102 | G4double a1 = *i; |
---|
| 103 | G4double b1 = *(i+1); |
---|
| 104 | G4double c1 = *(i+2); |
---|
| 105 | |
---|
| 106 | std::vector<G4double>::iterator j = (*par2Vec).begin(); |
---|
| 107 | |
---|
| 108 | G4double a2 = *j; |
---|
| 109 | G4double b2 = *(j+1); |
---|
| 110 | G4double c2 = *(j+2); |
---|
| 111 | G4double d2 = *(j+3); |
---|
| 112 | G4double e2 = *(j+4); |
---|
| 113 | |
---|
| 114 | G4double incidentEnergyInMeV = incidentEnergy/MeV; |
---|
| 115 | |
---|
| 116 | // energy is the energy to split the file in low and high energy |
---|
| 117 | std::vector<G4double>::iterator l = (*energyVec).begin(); |
---|
| 118 | G4double energy = *l; |
---|
| 119 | energy = energy/MeV; |
---|
| 120 | |
---|
| 121 | if(incidentEnergyInMeV <= energy) |
---|
| 122 | { |
---|
| 123 | if(Z<26) |
---|
| 124 | { |
---|
| 125 | crossSectionsInBarn = (std::pow(incidentEnergyInMeV,(a1)))*std::exp((b1)-((c1)*(incidentEnergyInMeV))); |
---|
| 126 | } |
---|
| 127 | else if(Z>=26) |
---|
| 128 | { |
---|
| 129 | crossSectionsInBarn = a1*(std::pow(b1,(1./incidentEnergyInMeV)))*(std::pow(incidentEnergyInMeV,c1)); |
---|
| 130 | } |
---|
| 131 | } |
---|
| 132 | else if(incidentEnergyInMeV > energy) |
---|
| 133 | { |
---|
| 134 | if(Z<26 || (Z>=36 && Z<=65)) |
---|
| 135 | { |
---|
| 136 | crossSectionsInBarn = (a2)*(std::pow((b2),(1./incidentEnergyInMeV)))*(std::pow(incidentEnergyInMeV,(c2))); |
---|
| 137 | } |
---|
| 138 | else if(Z>=26 && Z<36) |
---|
| 139 | { |
---|
| 140 | crossSectionsInBarn = a2+b2*(std::log(incidentEnergyInMeV))+c2*(std::pow(std::log(incidentEnergyInMeV),2))+d2*(std::pow(std::log(incidentEnergyInMeV),3)); |
---|
| 141 | } |
---|
| 142 | else if(Z>65 && Z<=92) |
---|
| 143 | { |
---|
| 144 | crossSectionsInBarn = a2+b2*(std::log(incidentEnergyInMeV))+c2*(std::pow(std::log(incidentEnergyInMeV),2))+d2*(std::pow(std::log(incidentEnergyInMeV),3))+e2*(std::pow(std::log(incidentEnergyInMeV),4)); |
---|
| 145 | } |
---|
| 146 | } |
---|
| 147 | |
---|
| 148 | // if(Z<26 && incidentEnergyInMeV <= energy) |
---|
| 149 | // { |
---|
| 150 | // crossSectionsInBarn = (std::pow(incidentEnergyInMeV,(a1)))*std::exp((b1)-((c1)*incidentEnergyInMeV)); |
---|
| 151 | // } |
---|
| 152 | // else if(Z>=26 && incidentEnergyInMeV <= energy) |
---|
| 153 | // { |
---|
| 154 | // crossSectionsInBarn = a1*(std::pow(b1,(1./incidentEnergyInMeV)))*(std::pow(incidentEnergyInMeV,c1)); |
---|
| 155 | // } |
---|
| 156 | // else if((Z<26 || (36<=Z && Z<=65)) && incidentEnergyInMeV > energy) |
---|
| 157 | // { |
---|
| 158 | // crossSectionsInBarn = (a2)*(std::pow((b2),(1./incidentEnergyInMeV)))*(std::pow(incidentEnergyInMeV,(c2))); |
---|
| 159 | // } |
---|
| 160 | // else if(Z>=26 && Z<=35 && incidentEnergyInMeV > energy) |
---|
| 161 | // { |
---|
| 162 | // crossSectionsInBarn = a2+b2*(std::log(incidentEnergyInMeV))+c2*(std::pow(std::log(incidentEnergyInMeV),2))+d2*(std::pow(std::log(incidentEnergyInMeV),3)); |
---|
| 163 | // } |
---|
| 164 | // else if(Z>=67 && Z<=92 && incidentEnergyInMeV > energy) |
---|
| 165 | // { |
---|
| 166 | // crossSectionsInBarn = a2+b2*(std::log(incidentEnergyInMeV))+c2*(std::pow(std::log(incidentEnergyInMeV),2))+d2*(std::pow(std::log(incidentEnergyInMeV),3))+e2*(std::pow(std::log(incidentEnergyInMeV),4)); |
---|
| 167 | // } |
---|
| 168 | |
---|
| 169 | crossSections = crossSectionsInBarn*barn; |
---|
| 170 | return crossSections; |
---|
| 171 | } |
---|
| 172 | |
---|
| 173 | // This function gives the atomic cross section of k shell only |
---|
| 174 | void G4hShellCrossSectionDoubleExp::SetTotalCS(G4double value) |
---|
| 175 | { |
---|
| 176 | atomTotalCrossSection = value; |
---|
| 177 | } |
---|
| 178 | |
---|
| 179 | //A new implementation of Probability to calculate the cross section probability for k shell only |
---|
| 180 | std::vector<G4double> G4hShellCrossSectionDoubleExp::Probabilities( |
---|
| 181 | G4int Z, |
---|
| 182 | G4double incidentEnergy, |
---|
| 183 | G4double hMass, |
---|
| 184 | G4double deltaEnergy |
---|
| 185 | ) const |
---|
| 186 | { |
---|
| 187 | hMass = 0.0; |
---|
| 188 | deltaEnergy = 0.0; |
---|
| 189 | |
---|
| 190 | std::vector<G4double> kProbability;//(0); |
---|
[961] | 191 | |
---|
| 192 | |
---|
| 193 | if (atomTotalCrossSection!=0.) // SI - 26 june 2008 |
---|
| 194 | |
---|
| 195 | { |
---|
| 196 | kProbability.push_back(GetCrossSectionDoubleExp(Z,incidentEnergy)/atomTotalCrossSection); |
---|
| 197 | // ---- MGP ---- Next line corrected to kProbability[0] instead of [1], which is not initialized! |
---|
| 198 | kProbability.push_back(1 - kProbability[0]); |
---|
| 199 | } |
---|
[819] | 200 | |
---|
| 201 | return kProbability; |
---|
| 202 | } |
---|
| 203 | |
---|
| 204 | |
---|
| 205 | |
---|