| 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 | #include "G4ios.hh" |
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| 27 | #include "G4Electron.hh" |
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| 28 | #include "G4Element.hh" |
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| 29 | #include "G4ElectroNuclearCrossSection.hh" |
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| 30 | |
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| 31 | int main() |
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| 32 | { |
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| 33 | G4ElectroNuclearCrossSection eACrossSection; |
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| 34 | const G4int nN=6; // A#of plots (nuclei in the test) |
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| 35 | ofstream file0("h1_epl.out", ios::out); |
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| 36 | file0.setf( ios::scientific, ios::floatfield ); |
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| 37 | ofstream file1("h1_eph.out", ios::out); |
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| 38 | file1.setf( ios::scientific, ios::floatfield ); |
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| 39 | ofstream file2("cu_epl.out", ios::out); |
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| 40 | file2.setf( ios::scientific, ios::floatfield ); |
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| 41 | ofstream file3("cu_eph.out", ios::out); |
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| 42 | file3.setf( ios::scientific, ios::floatfield ); |
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| 43 | G4Element* theElement[nN]={new G4Element("Hydrogen", "H", 1, 1.*g/mole), |
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| 44 | new G4Element("Deuterium", "D", 1, 2.*g/mole), |
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| 45 | new G4Element("Carbon", "C", 6, 12.*g/mole), |
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| 46 | new G4Element("Aluminum", "Al", 13, 27.*g/mole), |
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| 47 | new G4Element("Copper", "Cu", 29, 64.*g/mole), |
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| 48 | new G4Element("Lead", "Pb", 82, 208.*g/mole)}; |
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| 49 | G4ParticleDefinition* theParticleDefinition = G4Electron::ElectronDefinition(); |
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| 50 | G4DynamicParticle* theDynamicParticle; |
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| 51 | for(G4int n=0; n<4; n++) |
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| 52 | { |
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| 53 | G4double ekin=1000.; |
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| 54 | if(n==3) ekin=10000.; |
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| 55 | else if(n==1) ekin=10000000.; |
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| 56 | G4int nel=0; |
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| 57 | if(n>1) nel=3; |
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| 58 | theDynamicParticle = new G4DynamicParticle(theParticleDefinition, |
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| 59 | G4ParticleMomentum(1.,0.,0.), ekin*MeV); |
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| 60 | G4double sig = eACrossSection.GetCrossSection(theDynamicParticle,theElement[nel])/millibarn; |
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| 61 | G4cout<<"n="<<n<<", Cross Section="<<sig<<G4endl; |
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| 62 | delete theDynamicParticle; |
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| 63 | G4int prob[100]; |
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| 64 | for(G4int k=0; k<100; k++) prob[k]=0; |
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| 65 | for(G4int i=0; i<10000000; i++) |
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| 66 | { |
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| 67 | G4double phe=eACrossSection.GetEffectivePhotonEnergy(); |
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| 68 | //if(phe<100.)G4Exception("Too low photon energy"); |
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| 69 | G4int ind=static_cast<int>(phe/10.); |
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| 70 | if(n==3) ind/=10; |
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| 71 | else if(n==1) ind/=10000; |
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| 72 | prob[ind]++; |
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| 73 | if(!(i%1000000)) G4cout<<i<<" equivalent photons are generated"<<G4endl; |
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| 74 | } |
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| 75 | //G4cout<<"Now printing"<<G4endl; |
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| 76 | for(G4int j=0; j<100; j++) |
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| 77 | { |
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| 78 | //G4cout<<"j="<<j<<G4endl; |
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| 79 | if (!n) file0<<j*10 <<" "<<prob[j]<<G4endl; |
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| 80 | else if(n==1) file1<<j*100000<<" "<<prob[j]<<G4endl; |
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| 81 | else if(n==2) file2<<j*10 <<" "<<prob[j]<<G4endl; |
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| 82 | else if(n==3) file3<<j*100 <<" "<<prob[j]<<G4endl; |
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| 83 | } |
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| 84 | } |
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| 85 | return EXIT_SUCCESS; |
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| 86 | } |
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| 87 | |
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