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2 | // ******************************************************************** |
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3 | // * License and Disclaimer * |
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15 | // * use. Please see the license in the file LICENSE and URL above * |
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24 | // ******************************************************************** |
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25 | // |
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26 | // $Id: SteppingAction.cc,v 1.25 2006/06/29 16:53:23 gunter Exp $ |
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27 | // GEANT4 tag $Name: geant4-09-01-patch-02 $ |
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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 | |
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34 | #include "DetectorConstruction.hh" |
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35 | #include "RunAction.hh" |
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36 | #include "EventAction.hh" |
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37 | #include "HistoManager.hh" |
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38 | |
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39 | #include "G4Step.hh" |
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40 | #include "G4Positron.hh" |
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41 | #include "G4RunManager.hh" |
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42 | |
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43 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo...... |
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44 | |
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45 | SteppingAction::SteppingAction(DetectorConstruction* det, RunAction* run, |
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46 | EventAction* evt, HistoManager* hist) |
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47 | :G4UserSteppingAction(),detector(det),runAct(run),eventAct(evt), |
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48 | histoManager(hist) |
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49 | {} |
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50 | |
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51 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo...... |
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52 | |
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53 | SteppingAction::~SteppingAction() |
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54 | {} |
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55 | |
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56 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo...... |
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57 | |
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58 | void SteppingAction::UserSteppingAction(const G4Step* aStep) |
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59 | { |
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60 | //track informations |
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61 | const G4StepPoint* prePoint = aStep->GetPreStepPoint(); |
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62 | const G4StepPoint* endPoint = aStep->GetPostStepPoint(); |
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63 | const G4ParticleDefinition* particle = aStep->GetTrack()->GetDefinition(); |
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64 | |
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65 | //if World, return |
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66 | // |
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67 | G4VPhysicalVolume* volume = prePoint->GetTouchableHandle()->GetVolume(); |
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68 | //if sum of absorbers do not fill exactly a layer: check material, not volume. |
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69 | G4Material* mat = volume->GetLogicalVolume()->GetMaterial(); |
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70 | if (mat == detector->GetWorldMaterial()) return; |
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71 | |
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72 | //here we are in an absorber. Locate it |
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73 | // |
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74 | G4int absorNum = prePoint->GetTouchableHandle()->GetCopyNumber(0); |
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75 | G4int layerNum = prePoint->GetTouchableHandle()->GetCopyNumber(1); |
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76 | |
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77 | // collect energy deposit |
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78 | G4double edep = aStep->GetTotalEnergyDeposit(); |
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79 | |
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80 | // collect step length of charged particles |
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81 | G4double stepl = 0.; |
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82 | if (particle->GetPDGCharge() != 0.) stepl = aStep->GetStepLength(); |
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83 | |
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84 | // sum up per event |
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85 | eventAct->SumEnergy(absorNum,edep,stepl); |
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86 | |
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87 | //longitudinal profile of edep per absorber |
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88 | if (edep>0.) histoManager->FillHisto(MaxAbsor+absorNum, layerNum+1., edep); |
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89 | |
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90 | //energy flow |
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91 | // |
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92 | // unique identificator of layer+absorber |
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93 | G4int Idnow = (detector->GetNbOfAbsor())*layerNum + absorNum; |
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94 | G4int plane; |
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95 | // |
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96 | //leaving the absorber ? |
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97 | if (endPoint->GetStepStatus() == fGeomBoundary) { |
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98 | G4ThreeVector position = endPoint->GetPosition(); |
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99 | G4ThreeVector direction = endPoint->GetMomentumDirection(); |
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100 | G4double sizeYZ = 0.5*detector->GetCalorSizeYZ(); |
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101 | G4double Eflow = endPoint->GetKineticEnergy(); |
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102 | if (particle == G4Positron::Positron()) Eflow += 2*electron_mass_c2; |
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103 | if ((std::abs(position.y()) >= sizeYZ) || (std::abs(position.z()) >= sizeYZ)) |
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104 | runAct->sumLateralEleak(Idnow, Eflow); |
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105 | else if (direction.x() >= 0.) runAct->sumEnergyFlow(plane=Idnow+1, Eflow); |
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106 | else runAct->sumEnergyFlow(plane=Idnow, -Eflow); |
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107 | } |
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108 | |
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109 | //// example of Birk attenuation |
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110 | //// G4double destep = aStep->GetTotalEnergyDeposit(); |
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111 | //// G4double response = BirkAttenuation(aStep); |
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112 | //// G4cout << " Destep: " << destep/keV << " keV" |
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113 | //// << " response after Birk: " << response/keV << " keV" << G4endl; |
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114 | } |
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115 | |
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116 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo...... |
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117 | |
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118 | G4double SteppingAction::BirkAttenuation(const G4Step* aStep) |
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119 | { |
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120 | //Example of Birk attenuation law in organic scintillators. |
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121 | //adapted from Geant3 PHYS337. See MIN 80 (1970) 239-244 |
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122 | // |
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123 | const G4String myMaterial = "Scintillator"; |
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124 | const G4double birk1 = 0.013*g/(MeV*cm2); |
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125 | // |
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126 | G4double destep = aStep->GetTotalEnergyDeposit(); |
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127 | G4Material* material = aStep->GetTrack()->GetMaterial(); |
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128 | G4double charge = aStep->GetTrack()->GetDefinition()->GetPDGCharge(); |
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129 | // |
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130 | G4double response = destep; |
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131 | if ((material->GetName()==myMaterial)&&(charge!=0.)) |
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132 | { |
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133 | G4double correction = |
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134 | birk1*destep/((material->GetDensity())*(aStep->GetStepLength())); |
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135 | response = destep/(1. + correction); |
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136 | } |
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137 | return response; |
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138 | } |
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139 | |
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140 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo...... |
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141 | |
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