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