Geant4_10
SteppingAction.cc
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26 // $Id: SteppingAction.cc 73008 2013-08-15 08:43:13Z gcosmo $
27 //
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30 
31 #include "SteppingAction.hh"
32 
33 #include "DetectorConstruction.hh"
34 #include "RunAction.hh"
35 #include "PrimaryGeneratorAction.hh"
36 #include "EventAction.hh"
37 
38 #include "G4Step.hh"
39 
40 #include "G4Geantino.hh"
41 
42 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
43 
45 :G4UserSteppingAction(),detector(det),eventAct(evt)
46 {
47  first = true;
48  lvol_world = lvol_module = lvol_layer = lvol_fiber = 0;
49 }
50 
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52 
54 {}
55 
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57 
59 {
60  //some initialisation
61  //
62  if (first) {
63  lvol_world = detector->GetLvolWorld();
64  lvol_module = detector->GetLvolModule();
65  lvol_layer = detector->GetLvolLayer();
66  lvol_fiber = detector->GetLvolFiber();
67 
68  calorThickness = detector->GetCalorThickness();
69  calorSizeYZ = detector->GetCalorSizeYZ();
70  moduleThickness = detector->GetModuleThickness();
71  d1Pixel = detector->GetD1Pixel();
72  d2Pixel = detector->GetD2Pixel();
73  n1pxl = detector->GetN1Pixels();
74  n2pxl = detector->GetN2Pixels();
75  n1shift = detector->GetN1Shift();
76 
77  first = false;
78  }
79 
80  //locate point in geometry
81  //
83  G4LogicalVolume* lvol = touch1->GetVolume()->GetLogicalVolume();
84 
85  //if world, return
86  //
87  if (lvol == lvol_world) return;
88 
89  //sum nb of radiation length of calorimeter with geantino
90  //
91  G4ParticleDefinition* particle = step->GetTrack()->GetDefinition();
92  if (particle == G4Geantino::Geantino()) {
93  G4double radl = lvol->GetMaterial()->GetRadlen();
94  G4double stepl = step->GetStepLength();
95  eventAct->SumNbRadLength(stepl/radl);
96  }
97 
98  //if no edep, return
99  //
101  if (edep == 0.) return;
102 
103  //locate position and compute pixel number
104  //
105  G4ThreeVector point1 = step->GetPreStepPoint()->GetPosition();
106  G4int i1Module = (int) ((point1.x() + 0.5*calorThickness)/moduleThickness);
107  G4int i1Pixel = (int) ((point1.x() + 0.5*calorThickness)/d1Pixel);
108  if (i1Pixel < 0 ) i1Pixel = 0;
109  if (i1Pixel >= n1pxl) i1Pixel = n1pxl - 1;
110  G4double point1yz = point1.y();
111  if (i1Module%2 != 0) point1yz = point1.z();
112  G4int i2Pixel = (int) ((point1yz + 0.5*calorSizeYZ)/d2Pixel);
113  if (i2Pixel < 0 ) i2Pixel = 0;
114  if (i2Pixel >= n2pxl) i2Pixel = n2pxl - 1;
115 
116  G4int iPixel = i1Pixel*n1shift + i2Pixel;
117 
118  // sum total energy deposit
119  //
120  eventAct->SumTotalEnergy(iPixel, edep);
121 
122  //in fiber ?
123  //
124  if (lvol == lvol_fiber) {
125  eventAct->SumVisibleEnergy(iPixel, edep);
126  }
127 }
128 
129 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
130 
132 {
133  //Example of Birk attenuation law in organic scintillators.
134  //adapted from Geant3 PHYS337. See MIN 80 (1970) 239-244
135  //
136  G4Material* material = aStep->GetTrack()->GetMaterial();
137  G4double birk1 = material->GetIonisation()->GetBirksConstant();
138  G4double destep = aStep->GetTotalEnergyDeposit();
139  G4double stepl = aStep->GetStepLength();
140  G4double charge = aStep->GetTrack()->GetDefinition()->GetPDGCharge();
141  //
142  G4double response = destep;
143  if (birk1*destep*stepl*charge != 0.)
144  {
145  response = destep/(1. + birk1*destep/stepl);
146  }
147  return response;
148 }
149 
150 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
151 
G4LogicalVolume * GetLvolModule()
G4ParticleDefinition * GetDefinition() const
void SumVisibleEnergy(G4int pixel, G4double de)
Definition: EventAction.hh:60
G4IonisParamMat * GetIonisation() const
Definition: G4Material.hh:224
G4double GetStepLength() const
double x() const
typedef int(XMLCALL *XML_NotStandaloneHandler)(void *userData)
G4Material * GetMaterial() const
G4LogicalVolume * GetLvolLayer()
G4LogicalVolume * GetLvolFiber()
void UserSteppingAction(const G4Step *)
int G4int
Definition: G4Types.hh:78
Double_t edep
Definition: macro.C:13
double z() const
G4double GetBirksConstant() const
string material
Definition: eplot.py:19
G4StepPoint * GetPreStepPoint() const
const G4ThreeVector & GetPosition() const
Definition: G4Step.hh:76
G4double GetRadlen() const
Definition: G4Material.hh:218
G4double GetTotalEnergyDeposit() const
G4Material * GetMaterial() const
G4double BirksAttenuation(const G4Step *)
G4LogicalVolume * GetLogicalVolume() const
void SumNbRadLength(G4double dn)
Definition: EventAction.hh:66
void SumTotalEnergy(G4int pixel, G4double de)
Definition: EventAction.hh:63
virtual G4VPhysicalVolume * GetVolume(G4int depth=0) const
Definition: G4VTouchable.cc:44
double y() const
static G4Geantino * Geantino()
Definition: G4Geantino.cc:87
double G4double
Definition: G4Types.hh:76
G4Track * GetTrack() const
G4double GetPDGCharge() const
const G4TouchableHandle & GetTouchableHandle() const
G4LogicalVolume * GetLvolWorld()