Geant4 Cross Reference |
1 // 1 2 // ******************************************* 3 // * License and Disclaimer 4 // * 5 // * The Geant4 software is copyright of th 6 // * the Geant4 Collaboration. It is provided 7 // * conditions of the Geant4 Software License 8 // * LICENSE and available at http://cern.ch/ 9 // * include a list of copyright holders. 10 // * 11 // * Neither the authors of this software syst 12 // * institutes,nor the agencies providing fin 13 // * work make any representation or warran 14 // * regarding this software system or assum 15 // * use. Please see the license in the file 16 // * for the full disclaimer and the limitatio 17 // * 18 // * This code implementation is the result 19 // * technical work of the GEANT4 collaboratio 20 // * By using, copying, modifying or distri 21 // * any work based on the software) you ag 22 // * use in resulting scientific publicati 23 // * acceptance of all terms of the Geant4 Sof 24 // ******************************************* 25 // 26 /// \file medical/electronScattering/src/Track 27 /// \brief Implementation of the TrackingActio 28 // 29 // 30 // 31 //....oooOO0OOooo........oooOO0OOooo........oo 32 //....oooOO0OOooo........oooOO0OOooo........oo 33 34 #include "TrackingAction.hh" 35 36 #include "DetectorConstruction.hh" 37 #include "HistoManager.hh" 38 #include "Run.hh" 39 40 #include "G4PhysicalConstants.hh" 41 #include "G4RunManager.hh" 42 #include "G4SystemOfUnits.hh" 43 #include "G4Track.hh" 44 45 //....oooOO0OOooo........oooOO0OOooo........oo 46 47 TrackingAction::TrackingAction(DetectorConstru 48 { 49 fZend = 0.5 * (fDetector->GetThicknessWorld( 50 } 51 52 //....oooOO0OOooo........oooOO0OOooo........oo 53 54 void TrackingAction::PreUserTrackingAction(con 55 56 //....oooOO0OOooo........oooOO0OOooo........oo 57 58 void TrackingAction::PostUserTrackingAction(co 59 { 60 G4AnalysisManager* analysisManager = G4Analy 61 62 G4double charge = track->GetDefinition()->Ge 63 G4ThreeVector position = track->GetPosition( 64 G4ThreeVector direction = track->GetMomentum 65 66 if (charge == 0.0) return; 67 if (position.z() < fZend) return; 68 if (direction.z() <= 0.) return; 69 70 G4double rmin, dr, ds; 71 G4int ih = 1; 72 73 // projected angle at exit 74 75 G4double ux = direction.x(), uy = direction. 76 G4double thetax = std::atan(ux / uz); 77 G4double thetay = std::atan(uy / uz); 78 analysisManager->FillH1(ih, thetax); 79 analysisManager->FillH1(ih, thetay); 80 81 // dN/dS at exit 82 83 G4double x = position.x(), y = position.y(); 84 G4double r = std::sqrt(x * x + y * y); 85 ih = 2; 86 dr = analysisManager->GetH1Width(ih); 87 rmin = ((int)(r / dr)) * dr; 88 ds = twopi * (rmin + 0.5 * dr) * dr; 89 analysisManager->FillH1(ih, r, 1 / ds); 90 91 // d(N/cost)/dS at exit 92 93 ih = 3; 94 dr = analysisManager->GetH1Width(ih); 95 rmin = ((int)(r / dr)) * dr; 96 ds = twopi * (rmin + 0.5 * dr) * dr; 97 analysisManager->FillH1(ih, r, 1 / (uz * ds) 98 99 // vector of d(N/cost)/dS at exit 100 101 Run* run = static_cast<Run*>(G4RunManager::G 102 103 run->SumFluence(r, 1 / uz); 104 105 // space angle at exit : dN/dOmega 106 107 ih = 5; 108 G4double theta = std::acos(uz); 109 if (theta > 0.) { 110 G4double dtheta = analysisManager->GetH1Wi 111 G4double unit = analysisManager->GetH1Unit 112 if (dtheta > 0.) { 113 G4double weight = unit * unit / (twopi * 114 analysisManager->FillH1(ih, theta, weigh 115 } 116 } 117 118 // measured space angle at exit : dN/dOmega_ 119 // 120 ih = 6; 121 const G4double dist = fDetector->GetZdist_fo 122 G4double thetam = std::atan(r / dist); 123 if (thetam > 0.) { 124 G4double dtheta = analysisManager->GetH1Wi 125 G4double unit = analysisManager->GetH1Unit 126 if (dtheta > 0.) { 127 G4double weight = unit * unit / (twopi * 128 analysisManager->FillH1(ih, thetam, weig 129 } 130 } 131 } 132 133 //....oooOO0OOooo........oooOO0OOooo........oo 134