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26 /// \file electromagnetic/TestEm3/src/Stepping << 26 // $Id: SteppingAction.cc,v 1.25 2006/06/29 16:53:23 gunter Exp $
27 /// \brief Implementation of the SteppingActio << 27 // GEANT4 tag $Name: geant4-09-01-patch-02 $
28 // <<
29 // 28 //
30 //....oooOO0OOooo........oooOO0OOooo........oo 29 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
31 //....oooOO0OOooo........oooOO0OOooo........oo 30 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
32 31
33 #include "SteppingAction.hh" 32 #include "SteppingAction.hh"
34 33
35 #include "DetectorConstruction.hh" 34 #include "DetectorConstruction.hh"
>> 35 #include "RunAction.hh"
36 #include "EventAction.hh" 36 #include "EventAction.hh"
37 #include "HistoManager.hh" 37 #include "HistoManager.hh"
38 #include "Run.hh" <<
39 38
40 #include "G4PhysicalConstants.hh" << 39 #include "G4Step.hh"
41 #include "G4Positron.hh" 40 #include "G4Positron.hh"
42 #include "G4RunManager.hh" 41 #include "G4RunManager.hh"
43 42
44 //....oooOO0OOooo........oooOO0OOooo........oo 43 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
45 44
46 SteppingAction::SteppingAction(DetectorConstru << 45 SteppingAction::SteppingAction(DetectorConstruction* det, RunAction* run,
47 : fDetector(det), fEventAct(evt) << 46 EventAction* evt, HistoManager* hist)
>> 47 :G4UserSteppingAction(),detector(det),runAct(run),eventAct(evt),
>> 48 histoManager(hist)
48 {} 49 {}
49 50
50 //....oooOO0OOooo........oooOO0OOooo........oo 51 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
51 52
52 void SteppingAction::UserSteppingAction(const << 53 SteppingAction::~SteppingAction()
53 { << 54 {}
54 // track informations <<
55 const G4StepPoint* prePoint = aStep->GetPreS <<
56 55
57 // if World, return << 56 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
58 // <<
59 G4VPhysicalVolume* volume = prePoint->GetTou <<
60 // if sum of absorbers do not fill exactly a <<
61 const G4Material* mat = volume->GetLogicalVo <<
62 if (mat == fDetector->GetWorldMaterial()) re <<
63 57
>> 58 void SteppingAction::UserSteppingAction(const G4Step* aStep)
>> 59 {
>> 60 //track informations
>> 61 const G4StepPoint* prePoint = aStep->GetPreStepPoint();
64 const G4StepPoint* endPoint = aStep->GetPost 62 const G4StepPoint* endPoint = aStep->GetPostStepPoint();
65 const G4ParticleDefinition* particle = aStep << 63 const G4ParticleDefinition* particle = aStep->GetTrack()->GetDefinition();
66 << 64
67 // here we are in an absorber. Locate it << 65 //if World, return
68 // << 66 //
69 G4int absorNum = prePoint->GetTouchableHandl << 67 G4VPhysicalVolume* volume = prePoint->GetTouchableHandle()->GetVolume();
70 G4int layerNum = prePoint->GetTouchableHandl << 68 //if sum of absorbers do not fill exactly a layer: check material, not volume.
71 << 69 G4Material* mat = volume->GetLogicalVolume()->GetMaterial();
72 // get Run << 70 if (mat == detector->GetWorldMaterial()) return;
73 Run* run = static_cast<Run*>(G4RunManager::G << 71
74 << 72 //here we are in an absorber. Locate it
75 // collect energy deposit taking into accoun << 73 //
76 G4double edep = aStep->GetTotalEnergyDeposit << 74 G4int absorNum = prePoint->GetTouchableHandle()->GetCopyNumber(0);
77 << 75 G4int layerNum = prePoint->GetTouchableHandle()->GetCopyNumber(1);
>> 76
>> 77 // collect energy deposit
>> 78 G4double edep = aStep->GetTotalEnergyDeposit();
>> 79
78 // collect step length of charged particles 80 // collect step length of charged particles
79 G4double stepl = 0.; 81 G4double stepl = 0.;
80 if (particle->GetPDGCharge() != 0.) { << 82 if (particle->GetPDGCharge() != 0.) stepl = aStep->GetStepLength();
81 stepl = aStep->GetStepLength(); << 83
82 run->AddChargedStep(); <<
83 } <<
84 else { <<
85 run->AddNeutralStep(); <<
86 } <<
87 <<
88 // G4cout << "Nabs= " << absorNum << " ed <<
89 <<
90 // sum up per event 84 // sum up per event
91 fEventAct->SumEnergy(absorNum, edep, stepl); << 85 eventAct->SumEnergy(absorNum,edep,stepl);
92 << 86
93 // longitudinal profile of edep per absorber << 87 //longitudinal profile of edep per absorber
94 if (edep > 0.) { << 88 if (edep>0.) histoManager->FillHisto(MaxAbsor+absorNum, layerNum+1., edep);
95 G4AnalysisManager::Instance()->FillH1(kMax << 89
96 } << 90 //energy flow
97 // energy flow <<
98 // 91 //
99 // unique identificator of layer+absorber << 92 // unique identificator of layer+absorber
100 G4int Idnow = (fDetector->GetNbOfAbsor()) * << 93 G4int Idnow = (detector->GetNbOfAbsor())*layerNum + absorNum;
101 G4int plane; 94 G4int plane;
102 // 95 //
103 // leaving the absorber ? << 96 //leaving the absorber ?
104 if (endPoint->GetStepStatus() == fGeomBounda 97 if (endPoint->GetStepStatus() == fGeomBoundary) {
105 G4ThreeVector position = endPoint->GetPosi << 98 G4ThreeVector position = endPoint->GetPosition();
106 G4ThreeVector direction = endPoint->GetMom 99 G4ThreeVector direction = endPoint->GetMomentumDirection();
107 G4double sizeYZ = 0.5 * fDetector->GetCalo << 100 G4double sizeYZ = 0.5*detector->GetCalorSizeYZ();
108 G4double Eflow = endPoint->GetKineticEnerg 101 G4double Eflow = endPoint->GetKineticEnergy();
109 if (particle == G4Positron::Positron()) Ef << 102 if (particle == G4Positron::Positron()) Eflow += 2*electron_mass_c2;
110 if ((std::abs(position.y()) >= sizeYZ) || << 103 if ((std::abs(position.y()) >= sizeYZ) || (std::abs(position.z()) >= sizeYZ))
111 run->SumLateralEleak(Idnow, Eflow); << 104 runAct->sumLateralEleak(Idnow, Eflow);
112 else if (direction.x() >= 0.) << 105 else if (direction.x() >= 0.) runAct->sumEnergyFlow(plane=Idnow+1, Eflow);
113 run->SumEnergyFlow(plane = Idnow + 1, Ef << 106 else runAct->sumEnergyFlow(plane=Idnow, -Eflow);
114 else << 107 }
115 run->SumEnergyFlow(plane = Idnow, -Eflow << 108
116 } << 109 //// example of Birk attenuation
117 << 110 //// G4double destep = aStep->GetTotalEnergyDeposit();
118 //// example of Birk attenuation << 111 //// G4double response = BirkAttenuation(aStep);
119 /// G4double destep = aStep->GetTotalEnerg << 112 //// G4cout << " Destep: " << destep/keV << " keV"
120 /// G4double response = BirksAttenuation(aSt << 113 //// << " response after Birk: " << response/keV << " keV" << G4endl;
121 /// G4cout << " Destep: " << destep/keV << " <<
122 /// << " response after Birks: " << re <<
123 } 114 }
124 115
125 //....oooOO0OOooo........oooOO0OOooo........oo 116 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
126 117
127 G4double SteppingAction::BirksAttenuation(cons << 118 G4double SteppingAction::BirkAttenuation(const G4Step* aStep)
128 { 119 {
129 // Example of Birk attenuation law in organi << 120 //Example of Birk attenuation law in organic scintillators.
130 // adapted from Geant3 PHYS337. See MIN 80 ( << 121 //adapted from Geant3 PHYS337. See MIN 80 (1970) 239-244
131 // << 122 //
132 const G4Material* material = aStep->GetTrack << 123 const G4String myMaterial = "Scintillator";
133 G4double birk1 = material->GetIonisation()-> << 124 const G4double birk1 = 0.013*g/(MeV*cm2);
134 G4double destep = aStep->GetTotalEnergyDepos << 125 //
135 G4double stepl = aStep->GetStepLength(); << 126 G4double destep = aStep->GetTotalEnergyDeposit();
136 G4double charge = aStep->GetTrack()->GetDefi << 127 G4Material* material = aStep->GetTrack()->GetMaterial();
137 // << 128 G4double charge = aStep->GetTrack()->GetDefinition()->GetPDGCharge();
138 G4double response = destep; << 129 //
139 if (birk1 * destep * stepl * charge != 0.) { << 130 G4double response = destep;
140 response = destep / (1. + birk1 * destep / << 131 if ((material->GetName()==myMaterial)&&(charge!=0.))
141 } << 132 {
142 return response; << 133 G4double correction =
>> 134 birk1*destep/((material->GetDensity())*(aStep->GetStepLength()));
>> 135 response = destep/(1. + correction);
>> 136 }
>> 137 return response;
143 } 138 }
144 139
145 //....oooOO0OOooo........oooOO0OOooo........oo 140 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
>> 141
146 142