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 | #define debug |
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27 | #define qedebug |
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28 | |
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29 | //#include "G4UIterminal.hh" |
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30 | #include "G4ios.hh" |
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31 | //#include "G4ProcessManager.hh" |
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32 | //#include "G4DynamicParticle.hh" |
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33 | #include "G4Electron.hh" |
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34 | #include "G4Element.hh" |
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35 | #include "G4ElectroNuclearCrossSection.hh" |
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36 | |
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37 | int main() |
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38 | { |
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39 | G4ElectroNuclearCrossSection eACrossSection; |
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40 | const G4int nN=6; // A#of plots (nuclei in the test) |
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41 | const G4int nC=227; // A#of points in the plots (energy values) |
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42 | #ifdef qedebug |
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43 | const G4int nP=10; // A#of points in nu/Q2 for each eE (energy values) |
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44 | #endif |
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45 | std::ofstream fileH1("h1_e.out", std::ios::out); |
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46 | fileH1.setf( std::ios::scientific, std::ios::floatfield ); |
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47 | std::ofstream fileH2("h2_e.out", std::ios::out); |
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48 | fileH2.setf( std::ios::scientific, std::ios::floatfield ); |
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49 | std::ofstream fileC12("c12_e.out", std::ios::out); |
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50 | fileC12.setf( std::ios::scientific, std::ios::floatfield ); |
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51 | std::ofstream fileAl27("al27_e.out", std::ios::out); |
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52 | fileAl27.setf( std::ios::scientific, std::ios::floatfield ); |
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53 | std::ofstream fileCu("cu_e.out", std::ios::out); |
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54 | fileCu.setf( std::ios::scientific, std::ios::floatfield ); |
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55 | std::ofstream filePb("pb_e.out", std::ios::out); |
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56 | filePb.setf( std::ios::scientific, std::ios::floatfield ); |
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57 | G4double low[nN]={137. , 2.22, 12.5 , 8.3 , 7. , 7.35}; |
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58 | G4double high[nN]={2.e7, 2.e7, 2.e7, 2.e7, 2.e7, 2.e7}; |
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59 | G4int zA[nN] ={1, 1, 6, 13, 29, 82}; |
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60 | G4int aA[nN] ={1, 2, 12, 27, 64, 208}; |
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61 | G4Element* theElement[nN]={new G4Element("Hydrogen", "H" , zA[0], aA[0]*g/mole), |
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62 | new G4Element("Deuterium", "D" , zA[1], aA[1]*g/mole), |
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63 | new G4Element("Carbon", "C" , zA[2], aA[2]*g/mole), |
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64 | new G4Element("Aluminum", "Al", zA[3], aA[3]*g/mole), |
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65 | new G4Element("Copper", "Cu", zA[4], aA[4]*g/mole), |
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66 | new G4Element("Lead", "Pb", zA[5], aA[5]*g/mole)}; |
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67 | G4ParticleDefinition* theParticleDefinition = G4Electron::ElectronDefinition(); |
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68 | G4DynamicParticle* theDynamicParticle; |
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69 | G4double sig=0.; |
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70 | for(G4int n=0; n<nN; n++) // >>>> LOOP over Elements |
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71 | { |
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72 | G4double lekin = std::log(low[n]); |
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73 | G4double dlekin= std::exp((std::log(std::log(high[n]))-std::log(lekin))/(nC-1)); |
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74 | lekin /= dlekin; |
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75 | #ifdef debug |
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76 | G4cout<<"G4ElNucCSTest:>>>>n="<<n<<",l="<<low[n]<<",h="<<high[n]<<",n="<<nC<<",d="<<dlekin<<G4endl; |
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77 | #endif |
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78 | for(G4int ll=0; ll<nC; ll++) // >>>> LOOP over electron energies with the log-step |
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79 | { |
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80 | lekin*=dlekin; |
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81 | G4double ekin=std::exp(lekin); |
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82 | theDynamicParticle = new G4DynamicParticle(theParticleDefinition, |
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83 | G4ParticleMomentum(1.,0.,0.), ekin*MeV); |
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84 | sig = eACrossSection.GetCrossSection(theDynamicParticle,theElement[n])/millibarn; |
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85 | delete theDynamicParticle; |
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86 | #ifdef debug |
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87 | G4cout<<"G4ElNucCSTest:****>>> Z="<<zA[n]<<", A="<<aA[n]<<", eE="<<ekin<<", sigma="<<sig<<G4endl; |
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88 | #endif |
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89 | #ifdef qedebug |
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90 | if(sig>0.)for(G4int qe=0; qe<nP; qe++) // >>>> LOOP over equiv. photon energies for particular eE |
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91 | { |
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92 | G4double phE = eACrossSection.GetEquivalentPhotonEnergy(); |
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93 | G4double phQ2= eACrossSection.GetEquivalentPhotonQ2(phE); |
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94 | G4double x = phQ2/1878./phE; |
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95 | G4cout<<"G4ElNucCSTest:.......eE="<<ekin<<", phE="<<phE<<", phQ2="<<phQ2<<", x="<<x<<G4endl; |
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96 | } // End of the equivalent photon LOOP |
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97 | #endif |
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98 | // Fill the result for the electro-nuclear cross section plot |
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99 | if(!n) fileH1<<ekin<<" "<<sig<<G4endl; |
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100 | else if(n==1) fileH2<<ekin<<" "<<sig<<G4endl; |
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101 | else if(n==2) fileC12<<ekin<<" "<<sig<<G4endl; |
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102 | else if(n==3) fileAl27<<ekin<<" "<<sig<<G4endl; |
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103 | else if(n==4) fileCu<<ekin<<" "<<sig<<G4endl; |
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104 | else if(n==5) filePb<<ekin<<" "<<sig<<G4endl; |
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105 | } // End of the LOOP over electron energies |
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106 | } // End of the LOOP over elements |
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107 | return EXIT_SUCCESS; |
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108 | } |
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