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25 // 22 //
26 /// \file electromagnetic/TestEm3/src/Stepping << 23 // $Id: SteppingAction.cc,v 1.19 2005/02/02 16:42:45 maire Exp $
27 /// \brief Implementation of the SteppingActio << 24 // GEANT4 tag $Name: geant4-07-00-patch-01 $
28 // <<
29 // 25 //
30 //....oooOO0OOooo........oooOO0OOooo........oo 26 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
31 //....oooOO0OOooo........oooOO0OOooo........oo 27 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
32 28
33 #include "SteppingAction.hh" 29 #include "SteppingAction.hh"
34 30
35 #include "DetectorConstruction.hh" 31 #include "DetectorConstruction.hh"
36 #include "EventAction.hh" 32 #include "EventAction.hh"
37 #include "HistoManager.hh" 33 #include "HistoManager.hh"
38 #include "Run.hh" <<
39 34
40 #include "G4PhysicalConstants.hh" << 35 #include "G4Track.hh"
41 #include "G4Positron.hh" 36 #include "G4Positron.hh"
42 #include "G4RunManager.hh" 37 #include "G4RunManager.hh"
43 38
44 //....oooOO0OOooo........oooOO0OOooo........oo 39 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
45 40
46 SteppingAction::SteppingAction(DetectorConstru << 41 SteppingAction::SteppingAction(DetectorConstruction* det, EventAction* evt,
47 : fDetector(det), fEventAct(evt) << 42 HistoManager* hist)
>> 43 :G4UserSteppingAction(),detector(det),eventAct(evt),histoManager(hist)
>> 44 {}
>> 45
>> 46 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
>> 47
>> 48 SteppingAction::~SteppingAction()
48 {} 49 {}
49 50
50 //....oooOO0OOooo........oooOO0OOooo........oo 51 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
51 52
52 void SteppingAction::UserSteppingAction(const 53 void SteppingAction::UserSteppingAction(const G4Step* aStep)
53 { 54 {
54 // track informations <<
55 const G4StepPoint* prePoint = aStep->GetPreS 55 const G4StepPoint* prePoint = aStep->GetPreStepPoint();
56 << 56
57 // if World, return << 57 //if World, returns
58 // 58 //
59 G4VPhysicalVolume* volume = prePoint->GetTou << 59 G4VPhysicalVolume* volume = prePoint->GetPhysicalVolume();
60 // if sum of absorbers do not fill exactly a << 60 //if sum of absorbers do not fill exactly a layer: check material, not volume.
61 const G4Material* mat = volume->GetLogicalVo << 61 G4Material* mat = volume->GetLogicalVolume()->GetMaterial();
62 if (mat == fDetector->GetWorldMaterial()) re << 62 if (mat == detector->GetWorldMaterial()) return;
63 << 63
64 const G4StepPoint* endPoint = aStep->GetPost 64 const G4StepPoint* endPoint = aStep->GetPostStepPoint();
65 const G4ParticleDefinition* particle = aStep << 65 const G4Track* track = aStep->GetTrack();
66 << 66 const G4ParticleDefinition* particle = track->GetDefinition();
67 // here we are in an absorber. Locate it << 67
68 // << 68 //locate the absorber
69 G4int absorNum = prePoint->GetTouchableHandl << 69 //
70 G4int layerNum = prePoint->GetTouchableHandl << 70 G4int absorNum = volume->GetCopyNo();
71 << 71 G4int layerNum = prePoint->GetTouchable()->GetReplicaNumber(1);
72 // get Run << 72
73 Run* run = static_cast<Run*>(G4RunManager::G << 73 // collect energy deposit
74 << 74 G4double edep = aStep->GetTotalEnergyDeposit();
75 // collect energy deposit taking into accoun << 75
76 G4double edep = aStep->GetTotalEnergyDeposit <<
77 <<
78 // collect step length of charged particles 76 // collect step length of charged particles
79 G4double stepl = 0.; 77 G4double stepl = 0.;
80 if (particle->GetPDGCharge() != 0.) { << 78 if (particle->GetPDGCharge() != 0.) stepl = aStep->GetStepLength();
81 stepl = aStep->GetStepLength(); << 79
82 run->AddChargedStep(); <<
83 } <<
84 else { <<
85 run->AddNeutralStep(); <<
86 } <<
87 <<
88 // G4cout << "Nabs= " << absorNum << " ed <<
89 <<
90 // sum up per event 80 // sum up per event
91 fEventAct->SumEnergy(absorNum, edep, stepl); << 81 eventAct->SumEnergy(absorNum,edep,stepl);
92 << 82
93 // longitudinal profile of edep per absorber << 83 //longitudinal profile of edep per absorber
94 if (edep > 0.) { << 84 if (edep>0.) histoManager->FillHisto(MaxAbsor+absorNum, layerNum+1., edep);
95 G4AnalysisManager::Instance()->FillH1(kMax << 85
96 } << 86 //energy flow
97 // energy flow << 87 //
98 // << 88 //leaving an absorber ? in forward direction ?
99 // unique identificator of layer+absorber << 89 if ((endPoint->GetPhysicalVolume() != volume)
100 G4int Idnow = (fDetector->GetNbOfAbsor()) * << 90 && (track->GetMomentumDirection().x() > 0.)) {
101 G4int plane; << 91 G4int planNum = 1 + (detector->GetNbOfAbsor())*layerNum + absorNum;
102 // << 92 G4double EnLeaving = track->GetKineticEnergy();
103 // leaving the absorber ? << 93 if (particle == G4Positron::Positron()) EnLeaving += 2*electron_mass_c2;
104 if (endPoint->GetStepStatus() == fGeomBounda << 94 G4int ih = 2*MaxAbsor + 1;
105 G4ThreeVector position = endPoint->GetPosi << 95 if (track->GetTrackID() != 1) ih += 1;
106 G4ThreeVector direction = endPoint->GetMom << 96 histoManager->FillHisto(ih, (G4double)planNum, EnLeaving);
107 G4double sizeYZ = 0.5 * fDetector->GetCalo <<
108 G4double Eflow = endPoint->GetKineticEnerg <<
109 if (particle == G4Positron::Positron()) Ef <<
110 if ((std::abs(position.y()) >= sizeYZ) || <<
111 run->SumLateralEleak(Idnow, Eflow); <<
112 else if (direction.x() >= 0.) <<
113 run->SumEnergyFlow(plane = Idnow + 1, Ef <<
114 else <<
115 run->SumEnergyFlow(plane = Idnow, -Eflow <<
116 } 97 }
117 98
118 //// example of Birk attenuation << 99 //// example of Birk attenuation
119 /// G4double destep = aStep->GetTotalEnerg << 100 //// G4double destep = aStep->GetTotalEnergyDeposit();
120 /// G4double response = BirksAttenuation(aSt << 101 //// G4double response = BirkAttenuation(aStep);
121 /// G4cout << " Destep: " << destep/keV << " << 102 //// G4cout << " Destep: " << destep/keV << " keV"
122 /// << " response after Birks: " << re << 103 //// << " response after Birk: " << response/keV << " keV" << G4endl;
123 } 104 }
124 105
125 //....oooOO0OOooo........oooOO0OOooo........oo 106 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
126 107
127 G4double SteppingAction::BirksAttenuation(cons << 108 G4double SteppingAction::BirkAttenuation(const G4Step* aStep)
128 { 109 {
129 // Example of Birk attenuation law in organi << 110 //Example of Birk attenuation law in organic scintillators.
130 // adapted from Geant3 PHYS337. See MIN 80 ( << 111 //adapted from Geant3 PHYS337. See MIN 80 (1970) 239-244
131 // << 112 //
132 const G4Material* material = aStep->GetTrack << 113 const G4String myMaterial = "Scintillator";
133 G4double birk1 = material->GetIonisation()-> << 114 const G4double birk1 = 0.013*g/(MeV*cm2);
134 G4double destep = aStep->GetTotalEnergyDepos << 115 //
135 G4double stepl = aStep->GetStepLength(); << 116 G4double destep = aStep->GetTotalEnergyDeposit();
136 G4double charge = aStep->GetTrack()->GetDefi << 117 G4Material* material = aStep->GetTrack()->GetMaterial();
137 // << 118 G4double charge = aStep->GetTrack()->GetDefinition()->GetPDGCharge();
138 G4double response = destep; << 119 //
139 if (birk1 * destep * stepl * charge != 0.) { << 120 G4double response = destep;
140 response = destep / (1. + birk1 * destep / << 121 if ((material->GetName()==myMaterial)&&(charge!=0.))
141 } << 122 {
142 return response; << 123 G4double correction =
>> 124 birk1*destep/((material->GetDensity())*(aStep->GetStepLength()));
>> 125 response = destep/(1. + correction);
>> 126 }
>> 127 return response;
143 } 128 }
144 129
145 //....oooOO0OOooo........oooOO0OOooo........oo 130 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
>> 131
146 132