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25 // 25 //
26 /// \file electromagnetic/TestEm3/src/Stepping 26 /// \file electromagnetic/TestEm3/src/SteppingAction.cc
27 /// \brief Implementation of the SteppingActio 27 /// \brief Implementation of the SteppingAction class
28 // 28 //
29 // 29 //
30 //....oooOO0OOooo........oooOO0OOooo........oo 30 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
31 //....oooOO0OOooo........oooOO0OOooo........oo 31 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
32 32
33 #include "SteppingAction.hh" 33 #include "SteppingAction.hh"
34 34
35 #include "DetectorConstruction.hh" 35 #include "DetectorConstruction.hh"
>> 36 #include "Run.hh"
36 #include "EventAction.hh" 37 #include "EventAction.hh"
37 #include "HistoManager.hh" 38 #include "HistoManager.hh"
38 #include "Run.hh" <<
39 39
40 #include "G4PhysicalConstants.hh" <<
41 #include "G4Positron.hh" 40 #include "G4Positron.hh"
42 #include "G4RunManager.hh" 41 #include "G4RunManager.hh"
>> 42 #include "G4PhysicalConstants.hh"
43 43
44 //....oooOO0OOooo........oooOO0OOooo........oo 44 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
45 45
46 SteppingAction::SteppingAction(DetectorConstru 46 SteppingAction::SteppingAction(DetectorConstruction* det, EventAction* evt)
47 : fDetector(det), fEventAct(evt) << 47 :G4UserSteppingAction(),fDetector(det),fEventAct(evt)
48 {} << 48 { }
>> 49
>> 50 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
>> 51
>> 52 SteppingAction::~SteppingAction()
>> 53 { }
49 54
50 //....oooOO0OOooo........oooOO0OOooo........oo 55 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
51 56
52 void SteppingAction::UserSteppingAction(const 57 void SteppingAction::UserSteppingAction(const G4Step* aStep)
53 { 58 {
54 // track informations << 59 //track informations
55 const G4StepPoint* prePoint = aStep->GetPreS << 60 const G4StepPoint* prePoint = aStep->GetPreStepPoint();
56 << 61
57 // if World, return << 62 //if World, return
58 // 63 //
59 G4VPhysicalVolume* volume = prePoint->GetTou << 64 G4VPhysicalVolume* volume = prePoint->GetTouchableHandle()->GetVolume();
60 // if sum of absorbers do not fill exactly a << 65 //if sum of absorbers do not fill exactly a layer: check material, not volume.
61 const G4Material* mat = volume->GetLogicalVo 66 const G4Material* mat = volume->GetLogicalVolume()->GetMaterial();
62 if (mat == fDetector->GetWorldMaterial()) re << 67 if (mat == fDetector->GetWorldMaterial()) return;
63 68
64 const G4StepPoint* endPoint = aStep->GetPost 69 const G4StepPoint* endPoint = aStep->GetPostStepPoint();
65 const G4ParticleDefinition* particle = aStep << 70 const G4ParticleDefinition* particle = aStep->GetTrack()->GetDefinition();
66 << 71
67 // here we are in an absorber. Locate it << 72 //here we are in an absorber. Locate it
68 // << 73 //
69 G4int absorNum = prePoint->GetTouchableHandl << 74 G4int absorNum = prePoint->GetTouchableHandle()->GetCopyNumber(0);
70 G4int layerNum = prePoint->GetTouchableHandl << 75 G4int layerNum = prePoint->GetTouchableHandle()->GetCopyNumber(1);
71 << 76
72 // get Run << 77 //get Run
73 Run* run = static_cast<Run*>(G4RunManager::G << 78 Run* run = static_cast<Run*>(
74 << 79 G4RunManager::GetRunManager()->GetNonConstCurrentRun());
>> 80
75 // collect energy deposit taking into accoun 81 // collect energy deposit taking into account track weight
76 G4double edep = aStep->GetTotalEnergyDeposit << 82 G4double edep = aStep->GetTotalEnergyDeposit()*aStep->GetTrack()->GetWeight();
77 << 83
78 // collect step length of charged particles 84 // collect step length of charged particles
79 G4double stepl = 0.; 85 G4double stepl = 0.;
80 if (particle->GetPDGCharge() != 0.) { 86 if (particle->GetPDGCharge() != 0.) {
81 stepl = aStep->GetStepLength(); 87 stepl = aStep->GetStepLength();
82 run->AddChargedStep(); 88 run->AddChargedStep();
83 } << 89 } else { run->AddNeutralStep(); }
84 else { << 90
85 run->AddNeutralStep(); <<
86 } <<
87 <<
88 // G4cout << "Nabs= " << absorNum << " ed 91 // G4cout << "Nabs= " << absorNum << " edep(keV)= " << edep << G4endl;
89 << 92
90 // sum up per event 93 // sum up per event
91 fEventAct->SumEnergy(absorNum, edep, stepl); << 94 fEventAct->SumEnergy(absorNum,edep,stepl);
92 << 95
93 // longitudinal profile of edep per absorber << 96 //longitudinal profile of edep per absorber
94 if (edep > 0.) { << 97 if (edep>0.) {
95 G4AnalysisManager::Instance()->FillH1(kMax << 98 G4AnalysisManager::Instance()->FillH1(kMaxAbsor+absorNum,
>> 99 G4double(layerNum+1), edep);
96 } 100 }
97 // energy flow << 101 //energy flow
98 // 102 //
99 // unique identificator of layer+absorber << 103 // unique identificator of layer+absorber
100 G4int Idnow = (fDetector->GetNbOfAbsor()) * << 104 G4int Idnow = (fDetector->GetNbOfAbsor())*layerNum + absorNum;
101 G4int plane; 105 G4int plane;
102 // 106 //
103 // leaving the absorber ? << 107 //leaving the absorber ?
104 if (endPoint->GetStepStatus() == fGeomBounda 108 if (endPoint->GetStepStatus() == fGeomBoundary) {
105 G4ThreeVector position = endPoint->GetPosi << 109 G4ThreeVector position = endPoint->GetPosition();
106 G4ThreeVector direction = endPoint->GetMom 110 G4ThreeVector direction = endPoint->GetMomentumDirection();
107 G4double sizeYZ = 0.5 * fDetector->GetCalo << 111 G4double sizeYZ = 0.5*fDetector->GetCalorSizeYZ();
108 G4double Eflow = endPoint->GetKineticEnerg 112 G4double Eflow = endPoint->GetKineticEnergy();
109 if (particle == G4Positron::Positron()) Ef << 113 if(particle == G4Positron::Positron()) Eflow += 2*electron_mass_c2;
110 if ((std::abs(position.y()) >= sizeYZ) || << 114 if((std::abs(position.y()) >= sizeYZ) || (std::abs(position.z()) >= sizeYZ))
111 run->SumLateralEleak(Idnow, Eflow); << 115 run->SumLateralEleak(Idnow, Eflow);
112 else if (direction.x() >= 0.) << 116 else if (direction.x() >= 0.) run->SumEnergyFlow(plane=Idnow+1, Eflow);
113 run->SumEnergyFlow(plane = Idnow + 1, Ef << 117 else run->SumEnergyFlow(plane=Idnow, -Eflow);
114 else << 118 }
115 run->SumEnergyFlow(plane = Idnow, -Eflow << 119
116 } << 120 //// example of Birk attenuation
117 << 121 ///G4double destep = aStep->GetTotalEnergyDeposit();
118 //// example of Birk attenuation << 122 ///G4double response = BirksAttenuation(aStep);
119 /// G4double destep = aStep->GetTotalEnerg << 123 ///G4cout << " Destep: " << destep/keV << " keV"
120 /// G4double response = BirksAttenuation(aSt << 124 /// << " response after Birks: " << response/keV << " keV" << G4endl;
121 /// G4cout << " Destep: " << destep/keV << " <<
122 /// << " response after Birks: " << re <<
123 } 125 }
124 126
125 //....oooOO0OOooo........oooOO0OOooo........oo 127 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
126 128
127 G4double SteppingAction::BirksAttenuation(cons 129 G4double SteppingAction::BirksAttenuation(const G4Step* aStep)
128 { 130 {
129 // Example of Birk attenuation law in organi << 131 //Example of Birk attenuation law in organic scintillators.
130 // adapted from Geant3 PHYS337. See MIN 80 ( << 132 //adapted from Geant3 PHYS337. See MIN 80 (1970) 239-244
131 // << 133 //
132 const G4Material* material = aStep->GetTrack << 134 const G4Material* material = aStep->GetTrack()->GetMaterial();
133 G4double birk1 = material->GetIonisation()-> << 135 G4double birk1 = material->GetIonisation()->GetBirksConstant();
134 G4double destep = aStep->GetTotalEnergyDepos << 136 G4double destep = aStep->GetTotalEnergyDeposit();
135 G4double stepl = aStep->GetStepLength(); << 137 G4double stepl = aStep->GetStepLength();
136 G4double charge = aStep->GetTrack()->GetDefi << 138 G4double charge = aStep->GetTrack()->GetDefinition()->GetPDGCharge();
137 // << 139 //
138 G4double response = destep; << 140 G4double response = destep;
139 if (birk1 * destep * stepl * charge != 0.) { << 141 if (birk1*destep*stepl*charge != 0.)
140 response = destep / (1. + birk1 * destep / << 142 {
141 } << 143 response = destep/(1. + birk1*destep/stepl);
142 return response; << 144 }
>> 145 return response;
143 } 146 }
144 147
145 //....oooOO0OOooo........oooOO0OOooo........oo 148 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
>> 149
146 150