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G4VMscModel.cc
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26 // $Id: G4VMscModel.cc 96115 2016-03-16 18:53:00Z gcosmo $
27 //
28 // -------------------------------------------------------------------
29 //
30 // GEANT4 Class file
31 //
32 //
33 // File name: G4VMscModel
34 //
35 // Author: Vladimir Ivanchenko
36 //
37 // Creation date: 07.03.2008
38 //
39 // Modifications:
40 //
41 //
42 // Class Description:
43 //
44 // General interface to msc models
45 
46 // -------------------------------------------------------------------
47 //
48 
49 #include "G4VMscModel.hh"
50 #include "G4SystemOfUnits.hh"
53 #include "G4LossTableManager.hh"
54 #include "G4LossTableBuilder.hh"
55 #include "G4EmParameters.hh"
56 
57 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
58 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
59 
61  G4VEmModel(nam),
62  safetyHelper(nullptr),
63  ionisation(nullptr),
64  facrange(0.04),
65  facgeom(2.5),
66  facsafety(0.3),
67  skin(1.0),
68  dtrl(0.05),
69  lambdalimit(mm),
70  geomMin(1.e-6*CLHEP::mm),
71  geomMax(1.e50*CLHEP::mm),
72  fDisplacement(0.,0.,0.),
73  steppingAlgorithm(fUseSafety),
74  samplez(false),
75  latDisplasment(true)
76 {
77  dedx = 2.0*CLHEP::MeV*CLHEP::cm2/CLHEP::g;
78  localrange = DBL_MAX;
79  localtkin = 0.0;
80  currentPart = 0;
81 }
82 
83 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
84 
86 {}
87 
88 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
89 
92 {
93  // recomputed for each new run
94  if(!safetyHelper) {
96  ->GetSafetyHelper();
97  safetyHelper->InitialiseHelper();
98  }
99  G4ParticleChangeForMSC* change = nullptr;
100  if (pParticleChange) {
101  change = static_cast<G4ParticleChangeForMSC*>(pParticleChange);
102  } else {
103  change = new G4ParticleChangeForMSC();
104  }
105  if(p) {
106 
107  // table is never built for GenericIon
108  if(p->GetParticleName() == "GenericIon") {
109  if(xSectionTable) {
111  delete xSectionTable;
112  xSectionTable = nullptr;
113  }
114 
115  // table is always built for low mass particles
116  } else if(p->GetPDGMass() < 4.5*GeV || ForceBuildTableFlag()) {
117 
119  idxTable = 0;
120  G4LossTableBuilder* builder =
122  if(IsMaster()) {
125  emin = std::max(emin, param->MinKinEnergy());
126  emax = std::min(emax, param->MaxKinEnergy());
127  if(emin < emax) {
128  xSectionTable = builder->BuildTableForModel(xSectionTable, this, p,
129  emin, emax, true);
130  }
131  }
132  theDensityFactor = builder->GetDensityFactors();
133  theDensityIdx = builder->GetCoupleIndexes();
134  }
135  }
136  return change;
137 }
138 
139 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
140 
143 {
144  return fDisplacement;
145 }
146 
147 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
148 
150 {
151  return DBL_MAX;
152 }
153 
154 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
155 
157 {
158  return truePathLength;
159 }
160 
161 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
162 
164 {
165  return geomPathLength;
166 }
167 
168 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
169 
170 void G4VMscModel::SampleSecondaries(std::vector<G4DynamicParticle*>*,
171  const G4MaterialCutsCouple*,
172  const G4DynamicParticle*,
174 {}
175 
176 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
G4double LowEnergyActivationLimit() const
Definition: G4VEmModel.hh:654
G4double HighEnergyActivationLimit() const
Definition: G4VEmModel.hh:647
size_t idxTable
Definition: G4VEmModel.hh:426
G4double LowEnergyLimit() const
Definition: G4VEmModel.hh:640
G4SafetyHelper * GetSafetyHelper() const
const std::vector< G4double > * GetDensityFactors()
void InitialiseHelper()
G4double MaxKinEnergy() const
static G4LossTableManager * Instance()
static constexpr double mm
Definition: G4SIunits.hh:115
G4bool ForceBuildTableFlag() const
Definition: G4VEmModel.hh:689
G4double HighEnergyLimit() const
Definition: G4VEmModel.hh:633
static constexpr double cm2
G4PhysicsTable * BuildTableForModel(G4PhysicsTable *table, G4VEmModel *model, const G4ParticleDefinition *, G4double emin, G4double emax, G4bool spline)
const char * p
Definition: xmltok.h:285
G4bool IsMaster() const
Definition: G4VEmModel.hh:717
const G4String & GetParticleName() const
G4LossTableBuilder * GetTableBuilder()
static constexpr double g
const std::vector< G4int > * theDensityIdx
Definition: G4VEmModel.hh:425
virtual G4double ComputeTrueStepLength(G4double geomPathLength)
Definition: G4VMscModel.cc:163
virtual G4double ComputeTruePathLengthLimit(const G4Track &track, G4double &stepLimit)
Definition: G4VMscModel.cc:149
static constexpr double MeV
virtual void SampleSecondaries(std::vector< G4DynamicParticle * > *, const G4MaterialCutsCouple *, const G4DynamicParticle *, G4double tmin, G4double tmax) override
Definition: G4VMscModel.cc:170
G4double MinKinEnergy() const
G4ThreeVector fDisplacement
Definition: G4VMscModel.hh:184
const std::vector< G4double > * theDensityFactor
Definition: G4VEmModel.hh:424
static G4TransportationManager * GetTransportationManager()
static const G4double emax
G4ParticleChangeForMSC * GetParticleChangeForMSC(const G4ParticleDefinition *p=nullptr)
Definition: G4VMscModel.cc:91
G4double GetPDGMass() const
T max(const T t1, const T t2)
brief Return the largest of the two arguments
static G4EmParameters * Instance()
T min(const T t1, const T t2)
brief Return the smallest of the two arguments
static constexpr double GeV
Definition: G4SIunits.hh:217
G4VParticleChange * pParticleChange
Definition: G4VEmModel.hh:422
G4PhysicsTable * xSectionTable
Definition: G4VEmModel.hh:423
double G4double
Definition: G4Types.hh:76
#define DBL_MAX
Definition: templates.hh:83
G4VMscModel(const G4String &nam)
Definition: G4VMscModel.cc:60
virtual G4double ComputeGeomPathLength(G4double truePathLength)
Definition: G4VMscModel.cc:156
void clearAndDestroy()
virtual ~G4VMscModel()
Definition: G4VMscModel.cc:85
const std::vector< G4int > * GetCoupleIndexes()
virtual G4ThreeVector & SampleScattering(const G4ThreeVector &, G4double safety)
Definition: G4VMscModel.cc:142