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G4ePairProduction.cc
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26 // $Id: G4ePairProduction.cc 84953 2014-10-22 15:08:57Z vnivanch $
27 //
28 // -------------------------------------------------------------------
29 //
30 // GEANT4 Class file
31 //
32 //
33 // File name: G4ePairProduction
34 //
35 // Author: Vladimir Ivanchenko
36 //
37 // Creation date: 17.03.2016
38 //
39 // Modifications:
40 //
41 // -------------------------------------------------------------------
42 //
43 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
44 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
45 
46 #include "G4ePairProduction.hh"
47 #include "G4SystemOfUnits.hh"
48 #include "G4Electron.hh"
49 #include "G4Positron.hh"
50 #include "G4VEmModel.hh"
51 #include "G4VEmFluctuationModel.hh"
53 #include "G4ElementData.hh"
54 #include "G4EmParameters.hh"
55 
56 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
57 
58 using namespace std;
59 
61  : G4VEnergyLossProcess(name),
62  theParticle(nullptr),
63  lowestKinEnergy(100.*MeV),
64  isInitialised(false)
65 {
68  SetIonisation(false);
69 }
70 
71 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
72 
74 {
75  return (G4Electron::Electron() == &p || G4Positron::Positron() == &p);
76 }
77 
78 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
79 
81  const G4Material*,
82  G4double)
83 {
84  return lowestKinEnergy;
85 }
86 
87 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
88 
91  const G4ParticleDefinition*)
92 {
93  if (!isInitialised) {
94  isInitialised = true;
95 
96  theParticle = part;
97 
98  G4MuPairProductionModel* mod = new G4MuPairProductionModel(part, "ePairProd");
99  SetEmModel(mod);
100 
103 
104  G4VEmFluctuationModel* fm = nullptr;
106  mod->SetLowEnergyLimit(param->MinKinEnergy());
107  mod->SetHighEnergyLimit(param->MaxKinEnergy());
108  AddEmModel(1, mod, fm);
109  }
110 }
111 
112 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
113 
115  G4String endOfLine) const
116 {
118  if(ed) {
119  for(G4int Z=1; Z<93; ++Z) {
121  if(pv) {
122  out << " Sampling table " << pv->GetLengthY()
123  << "x" << pv->GetLengthX() << "; from "
124  << G4Exp(pv->GetY(0))/GeV << " GeV to "
125  << G4Exp(pv->GetY(pv->GetLengthY()-1))/TeV
126  << " TeV " << endOfLine;
127  break;
128  }
129  }
130  }
131 }
132 
133 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
134 
135 void G4ePairProduction::ProcessDescription(std::ostream& out) const
136 {
137  out << "<strong>Pair production</strong>";
139 }
140 
141 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
G4double G4Exp(G4double initial_x)
Exponential Function double precision.
Definition: G4Exp.hh:183
T max(const T t1, const T t2)
brief Return the largest of the two arguments
const XML_Char * name
Definition: expat.h:151
size_t GetLengthY() const
void SetEmModel(G4VEmModel *, G4int index=0)
static constexpr double MeV
Definition: G4SIunits.hh:214
void SetHighEnergyLimit(G4double)
Definition: G4VEmModel.hh:707
const char * p
Definition: xmltok.h:285
G4double MaxKinEnergy() const
G4ePairProduction(const G4String &processName="ePairProd")
G4double GetY(size_t index) const
G4double GetPDGMass() const
virtual G4double MinPrimaryEnergy(const G4ParticleDefinition *p, const G4Material *, G4double cut) override
virtual void StreamProcessInfo(std::ostream &outFile, G4String endOfLine=G4String("\n")) const override
Float_t Z
static constexpr double TeV
Definition: G4SIunits.hh:218
double G4double
Definition: G4Types.hh:76
bool G4bool
Definition: G4Types.hh:79
virtual G4bool IsApplicable(const G4ParticleDefinition &p) override
TString part[npart]
Definition: Style.C:32
G4Physics2DVector * GetElement2DData(G4int Z)
void SetIonisation(G4bool val)
void AddEmModel(G4int, G4VEmModel *, G4VEmFluctuationModel *fluc=0, const G4Region *region=nullptr)
static G4Positron * Positron()
Definition: G4Positron.cc:94
static G4Electron * Electron()
Definition: G4Electron.cc:94
G4double MinKinEnergy() const
void SetSecondaryParticle(const G4ParticleDefinition *p)
int G4int
Definition: G4Types.hh:78
void SetLowEnergyLimit(G4double)
Definition: G4VEmModel.hh:714
G4VEmModel * EmModel(size_t index=0) const
virtual void ProcessDescription(std::ostream &) const override
void SetProcessSubType(G4int)
Definition: G4VProcess.hh:435
size_t GetLengthX() const
G4ElementData * GetElementData()
Definition: G4VEmModel.hh:801
virtual void InitialiseEnergyLossProcess(const G4ParticleDefinition *, const G4ParticleDefinition *) override
const G4ParticleDefinition * theParticle
static constexpr double GeV
Definition: G4SIunits.hh:217
static G4EmParameters * Instance()
virtual void ProcessDescription(std::ostream &outFile) const override