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