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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: SteppingAction.cc 78655 2014-01-14 11:13:41Z gcosmo $
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 "Run.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 "G4Positron.hh" 41 #include "G4Positron.hh"
42 #include "G4RunManager.hh" 42 #include "G4RunManager.hh"
>> 43 #include "G4PhysicalConstants.hh"
43 44
44 //....oooOO0OOooo........oooOO0OOooo........oo 45 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
45 46
46 SteppingAction::SteppingAction(DetectorConstru 47 SteppingAction::SteppingAction(DetectorConstruction* det, EventAction* evt)
47 : fDetector(det), fEventAct(evt) << 48 :G4UserSteppingAction(),fDetector(det),fEventAct(evt)
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 == fDetector->GetWorldMaterial()) return;
73 Run* run = static_cast<Run*>(G4RunManager::G << 71
74 << 72 //here we are in an absorber. Locate it
>> 73 //
>> 74 G4int absorNum = prePoint->GetTouchableHandle()->GetCopyNumber(0);
>> 75 G4int layerNum = prePoint->GetTouchableHandle()->GetCopyNumber(1);
>> 76
>> 77 //get Run
>> 78 Run* run = static_cast<Run*>(
>> 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(MaxAbsor+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 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