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25 // 25 //
26 /// \file SteppingAction.cc 26 /// \file 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 "G4RunManager.hh" 40 #include "G4RunManager.hh"
41 41
42 //....oooOO0OOooo........oooOO0OOooo........oo 42 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
43 43
44 SteppingAction::SteppingAction(DetectorConstru 44 SteppingAction::SteppingAction(DetectorConstruction* det, EventAction* evt)
45 : fDetector(det), fEventAct(evt) << 45 :G4UserSteppingAction(),fDetector(det),fEventAct(evt)
46 {} << 46 { }
>> 47
>> 48 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
>> 49
>> 50 SteppingAction::~SteppingAction()
>> 51 { }
47 52
48 //....oooOO0OOooo........oooOO0OOooo........oo 53 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
49 54
50 void SteppingAction::UserSteppingAction(const 55 void SteppingAction::UserSteppingAction(const G4Step* aStep)
51 { 56 {
52 // count processes << 57 //count processes
53 // 58 //
54 const G4StepPoint* prePoint = aStep->GetPreS 59 const G4StepPoint* prePoint = aStep->GetPreStepPoint();
55 const G4StepPoint* endPoint = aStep->GetPost 60 const G4StepPoint* endPoint = aStep->GetPostStepPoint();
56 const G4VProcess* process = endPoint->GetPro << 61 const G4VProcess* process = endPoint->GetProcessDefinedStep();
57 Run* run = static_cast<Run*>(G4RunManager::G << 62 Run* run = static_cast<Run*>(
58 run->CountProcesses(process); << 63 G4RunManager::GetRunManager()->GetNonConstCurrentRun());
59 << 64 run->CountProcesses(process);
60 // if World, return << 65
>> 66 //if World, return
61 // 67 //
62 G4VPhysicalVolume* volume = prePoint->GetTou << 68 G4VPhysicalVolume* volume = prePoint->GetTouchableHandle()->GetVolume();
63 // if sum of absorbers do not fill exactly a << 69 //if sum of absorbers do not fill exactly a layer: check material, not volume.
64 const G4Material* mat = volume->GetLogicalVo 70 const G4Material* mat = volume->GetLogicalVolume()->GetMaterial();
65 if (mat == fDetector->GetWorldMaterial()) re << 71 if (mat == fDetector->GetWorldMaterial()) return;
66 <<
67 const G4ParticleDefinition* particle = aStep <<
68 <<
69 // here we are in an absorber. Locate it <<
70 // <<
71 G4int absorNum = prePoint->GetTouchableHandl <<
72 G4int layerNum = prePoint->GetTouchableHandl <<
73 72
>> 73 const G4ParticleDefinition* particle = aStep->GetTrack()->GetDefinition();
>> 74
>> 75 //here we are in an absorber. Locate it
>> 76 //
>> 77 G4int absorNum = prePoint->GetTouchableHandle()->GetCopyNumber(0);
>> 78 G4int layerNum = prePoint->GetTouchableHandle()->GetCopyNumber(1);
>> 79
74 // collect energy deposit (taking into accou 80 // collect energy deposit (taking into account track weight)
75 G4double edep = aStep->GetTotalEnergyDeposit 81 G4double edep = aStep->GetTotalEnergyDeposit();
76 ////edep *= (aStep->GetTrack()->GetWeight()) 82 ////edep *= (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.) stepl = 86 if (particle->GetPDGCharge() != 0.) stepl = aStep->GetStepLength();
81 << 87
82 // sum up per event 88 // sum up per event
83 fEventAct->SumEnergy(absorNum, edep, stepl); << 89 fEventAct->SumEnergy(absorNum,edep,stepl);
84 << 90
85 // longitudinal profile of edep per absorber << 91 //longitudinal profile of edep per absorber
86 if (edep > 0.) { 92 if (edep > 0.) {
87 G4AnalysisManager::Instance()->FillH1(kMax << 93 G4AnalysisManager::Instance()->FillH1(kMaxAbsor+absorNum,
>> 94 G4double(layerNum+1), edep);
88 } 95 }
89 << 96
90 // energy flow << 97 //energy flow
91 // 98 //
92 // unique identificator of layer+absorber << 99 // unique identificator of layer+absorber
93 G4int Idnow = (fDetector->GetNbOfAbsor()) * << 100 G4int Idnow = (fDetector->GetNbOfAbsor())*layerNum + absorNum;
94 G4int plane; 101 G4int plane;
95 // 102 //
96 // leaving the absorber ? << 103 //leaving the absorber ?
97 if (endPoint->GetStepStatus() == fGeomBounda 104 if (endPoint->GetStepStatus() == fGeomBoundary) {
98 G4ThreeVector position = endPoint->GetPosi << 105 G4ThreeVector position = endPoint->GetPosition();
99 G4ThreeVector direction = endPoint->GetMom 106 G4ThreeVector direction = endPoint->GetMomentumDirection();
100 G4double Eflow = endPoint->GetKineticEnerg 107 G4double Eflow = endPoint->GetKineticEnergy();
101 if (direction.x() >= 0.) << 108 if (direction.x() >= 0.) run->SumEnergyFlow(plane=Idnow+1, Eflow);
102 run->SumEnergyFlow(plane = Idnow + 1, Ef << 109 else run->SumEnergyFlow(plane=Idnow, -Eflow);
103 else << 110 }
104 run->SumEnergyFlow(plane = Idnow, -Eflow << 111
105 } << 112 //// example of Birk attenuation
106 << 113 ///G4double destep = aStep->GetTotalEnergyDeposit();
107 //// example of Birk attenuation << 114 ///G4double response = BirksAttenuation(aStep);
108 /// G4double destep = aStep->GetTotalEnerg << 115 ///G4cout << " Destep: " << destep/keV << " keV"
109 /// G4double response = BirksAttenuation(aSt << 116 /// << " response after Birks: " << response/keV << " keV" << G4endl;
110 /// G4cout << " Destep: " << destep/keV << " <<
111 /// << " response after Birks: " << re <<
112 } 117 }
113 118
114 //....oooOO0OOooo........oooOO0OOooo........oo 119 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
115 120
116 G4double SteppingAction::BirksAttenuation(cons 121 G4double SteppingAction::BirksAttenuation(const G4Step* aStep)
117 { 122 {
118 // Example of Birk attenuation law in organi << 123 //Example of Birk attenuation law in organic scintillators.
119 // adapted from Geant3 PHYS337. See MIN 80 ( << 124 //adapted from Geant3 PHYS337. See MIN 80 (1970) 239-244
120 // << 125 //
121 const G4Material* material = aStep->GetTrack << 126 const G4Material* material = aStep->GetTrack()->GetMaterial();
122 G4double birk1 = material->GetIonisation()-> << 127 G4double birk1 = material->GetIonisation()->GetBirksConstant();
123 G4double destep = aStep->GetTotalEnergyDepos << 128 G4double destep = aStep->GetTotalEnergyDeposit();
124 G4double stepl = aStep->GetStepLength(); << 129 G4double stepl = aStep->GetStepLength();
125 G4double charge = aStep->GetTrack()->GetDefi << 130 G4double charge = aStep->GetTrack()->GetDefinition()->GetPDGCharge();
126 // << 131 //
127 G4double response = destep; << 132 G4double response = destep;
128 if (birk1 * destep * stepl * charge != 0.) { << 133 if (birk1*destep*stepl*charge != 0.)
129 response = destep / (1. + birk1 * destep / << 134 {
130 } << 135 response = destep/(1. + birk1*destep/stepl);
131 return response; << 136 }
>> 137 return response;
132 } 138 }
133 139
134 //....oooOO0OOooo........oooOO0OOooo........oo 140 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
>> 141
135 142