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 | // $Id: SteppingAction.cc,v 1.6 2007/03/15 15:52:39 maire Exp $ |
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27 | // GEANT4 tag $Name: geant4-09-03-cand-01 $ |
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28 | // |
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29 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo...... |
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30 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo...... |
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31 | |
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32 | #include "SteppingAction.hh" |
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33 | #include "DetectorConstruction.hh" |
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34 | #include "PrimaryGeneratorAction.hh" |
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35 | #include "RunAction.hh" |
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36 | #include "HistoManager.hh" |
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37 | |
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38 | #include "G4RunManager.hh" |
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39 | |
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40 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo...... |
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41 | |
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42 | SteppingAction::SteppingAction(DetectorConstruction* det, |
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43 | PrimaryGeneratorAction* prim, RunAction* RuAct, |
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44 | HistoManager* Hist) |
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45 | :detector(det), primary(prim), runAction(RuAct), histoManager(Hist) |
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46 | { } |
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47 | |
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48 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo...... |
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49 | |
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50 | SteppingAction::~SteppingAction() |
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51 | { } |
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52 | |
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53 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo...... |
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54 | |
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55 | void SteppingAction::UserSteppingAction(const G4Step* aStep) |
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56 | { |
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57 | G4StepPoint* prePoint = aStep->GetPreStepPoint(); |
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58 | |
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59 | // if World --> return |
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60 | if (prePoint->GetTouchableHandle()->GetVolume()==detector->GetWorld()) return; |
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61 | |
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62 | // here we enter in the absorber Box |
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63 | // tag the event to be killed anyway after this step |
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64 | // |
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65 | G4RunManager::GetRunManager()->AbortEvent(); |
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66 | |
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67 | //count processes and keep only Multiple Scattering |
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68 | // |
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69 | G4StepPoint* endPoint = aStep->GetPostStepPoint(); |
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70 | G4String procName = endPoint->GetProcessDefinedStep()->GetProcessName(); |
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71 | runAction->CountProcesses(procName); |
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72 | |
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73 | if (procName != "msc" && procName != "stepMax") return; |
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74 | |
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75 | //below, only multiple Scattering happens |
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76 | // |
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77 | G4ThreeVector position = endPoint->GetPosition(); |
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78 | G4ThreeVector direction = endPoint->GetMomentumDirection(); |
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79 | |
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80 | G4double truePathLength = aStep->GetStepLength(); |
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81 | G4double geomPathLength = position.x() + 0.5*detector->GetBoxSize(); |
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82 | G4double ratio = geomPathLength/truePathLength; |
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83 | runAction->SumPathLength(truePathLength,geomPathLength); |
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84 | histoManager->FillHisto(1,truePathLength); |
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85 | histoManager->FillHisto(2,geomPathLength); |
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86 | histoManager->FillHisto(3,ratio); |
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87 | |
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88 | G4double yend = position.y(), zend = position.z(); |
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89 | G4double lateralDisplacement = std::sqrt(yend*yend + zend*zend); |
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90 | runAction->SumLateralDisplacement(lateralDisplacement); |
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91 | histoManager->FillHisto(4,lateralDisplacement); |
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92 | |
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93 | G4double psi = std::atan(lateralDisplacement/geomPathLength); |
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94 | runAction->SumPsi(psi); |
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95 | histoManager->FillHisto(5,psi); |
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96 | |
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97 | G4double xdir = direction.x(), ydir = direction.y(), zdir = direction.z(); |
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98 | G4double tetaPlane = std::atan2(ydir, xdir); |
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99 | runAction->SumTetaPlane(tetaPlane); |
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100 | histoManager->FillHisto(6,tetaPlane); |
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101 | tetaPlane = std::atan2(zdir, xdir); |
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102 | runAction->SumTetaPlane(tetaPlane); |
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103 | histoManager->FillHisto(6,tetaPlane); |
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104 | |
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105 | G4double phiPos = std::atan2(zend, yend); |
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106 | histoManager->FillHisto(7,phiPos); |
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107 | G4double phiDir = std::atan2(zdir, ydir); |
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108 | histoManager->FillHisto(8,phiDir); |
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109 | |
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110 | G4double phiCorrel = 0.; |
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111 | if (lateralDisplacement > 0.) |
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112 | phiCorrel = (yend*ydir + zend*zdir)/lateralDisplacement; |
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113 | runAction->SumPhiCorrel(phiCorrel); |
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114 | histoManager->FillHisto(9,phiCorrel); |
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115 | } |
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116 | |
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117 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo...... |
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118 | |
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119 | |
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