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G4IonCoulombScatteringModel Class Reference

#include <G4IonCoulombScatteringModel.hh>

Inheritance diagram for G4IonCoulombScatteringModel:
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Public Member Functions

 G4IonCoulombScatteringModel (const G4String &nam="IonCoulombScattering")
 
virtual ~G4IonCoulombScatteringModel ()
 
virtual void Initialise (const G4ParticleDefinition *, const G4DataVector &) final
 
virtual G4double ComputeCrossSectionPerAtom (const G4ParticleDefinition *, G4double kinEnergy, G4double Z, G4double A, G4double cut, G4double emax) final
 
virtual void SampleSecondaries (std::vector< G4DynamicParticle * > *, const G4MaterialCutsCouple *, const G4DynamicParticle *, G4double tmin, G4double maxEnergy) final
 
void SetRecoilThreshold (G4double eth)
 
void SetHeavyIonCorr (G4int b)
 
G4int GetHeavyIonCorr ()
 
- Public Member Functions inherited from G4VEmModel
 G4VEmModel (const G4String &nam)
 
virtual ~G4VEmModel ()
 
virtual void InitialiseLocal (const G4ParticleDefinition *, G4VEmModel *masterModel)
 
virtual void InitialiseForMaterial (const G4ParticleDefinition *, const G4Material *)
 
virtual void InitialiseForElement (const G4ParticleDefinition *, G4int Z)
 
virtual G4double ComputeDEDXPerVolume (const G4Material *, const G4ParticleDefinition *, G4double kineticEnergy, G4double cutEnergy=DBL_MAX)
 
virtual G4double CrossSectionPerVolume (const G4Material *, const G4ParticleDefinition *, G4double kineticEnergy, G4double cutEnergy=0.0, G4double maxEnergy=DBL_MAX)
 
virtual G4double GetPartialCrossSection (const G4Material *, G4int level, const G4ParticleDefinition *, G4double kineticEnergy)
 
virtual G4double ComputeCrossSectionPerShell (const G4ParticleDefinition *, G4int Z, G4int shellIdx, G4double kinEnergy, G4double cutEnergy=0.0, G4double maxEnergy=DBL_MAX)
 
virtual G4double ChargeSquareRatio (const G4Track &)
 
virtual G4double GetChargeSquareRatio (const G4ParticleDefinition *, const G4Material *, G4double kineticEnergy)
 
virtual G4double GetParticleCharge (const G4ParticleDefinition *, const G4Material *, G4double kineticEnergy)
 
virtual void StartTracking (G4Track *)
 
virtual void CorrectionsAlongStep (const G4MaterialCutsCouple *, const G4DynamicParticle *, G4double &eloss, G4double &niel, G4double length)
 
virtual G4double Value (const G4MaterialCutsCouple *, const G4ParticleDefinition *, G4double kineticEnergy)
 
virtual G4double MinPrimaryEnergy (const G4Material *, const G4ParticleDefinition *, G4double cut=0.0)
 
virtual G4double MinEnergyCut (const G4ParticleDefinition *, const G4MaterialCutsCouple *)
 
virtual void SetupForMaterial (const G4ParticleDefinition *, const G4Material *, G4double kineticEnergy)
 
virtual void DefineForRegion (const G4Region *)
 
virtual void ModelDescription (std::ostream &outFile) const
 
void InitialiseElementSelectors (const G4ParticleDefinition *, const G4DataVector &)
 
std::vector
< G4EmElementSelector * > * 		GetElementSelectors ()
 
void SetElementSelectors (std::vector< G4EmElementSelector * > *)
 
virtual G4double ComputeDEDX (const G4MaterialCutsCouple *, const G4ParticleDefinition *, G4double kineticEnergy, G4double cutEnergy=DBL_MAX)
 
G4double CrossSection (const G4MaterialCutsCouple *, const G4ParticleDefinition *, G4double kineticEnergy, G4double cutEnergy=0.0, G4double maxEnergy=DBL_MAX)
 
G4double ComputeMeanFreePath (const G4ParticleDefinition *, G4double kineticEnergy, const G4Material *, G4double cutEnergy=0.0, G4double maxEnergy=DBL_MAX)
 
G4double ComputeCrossSectionPerAtom (const G4ParticleDefinition *, const G4Element *, G4double kinEnergy, G4double cutEnergy=0.0, G4double maxEnergy=DBL_MAX)
 
G4int SelectIsotopeNumber (const G4Element *)
 
const G4Element * SelectRandomAtom (const G4MaterialCutsCouple *, const G4ParticleDefinition *, G4double kineticEnergy, G4double cutEnergy=0.0, G4double maxEnergy=DBL_MAX)
 
const G4Element * SelectRandomAtom (const G4Material *, const G4ParticleDefinition *, G4double kineticEnergy, G4double cutEnergy=0.0, G4double maxEnergy=DBL_MAX)
 
G4int SelectRandomAtomNumber (const G4Material *)
 
void SetParticleChange (G4VParticleChange *, G4VEmFluctuationModel *f=nullptr)
 
void SetCrossSectionTable (G4PhysicsTable *, G4bool isLocal)
 
G4ElementData * GetElementData ()
 
G4PhysicsTable * GetCrossSectionTable ()
 
G4VEmFluctuationModel * GetModelOfFluctuations ()
 
G4VEmAngularDistribution * GetAngularDistribution ()
 
void SetAngularDistribution (G4VEmAngularDistribution *)
 
G4double HighEnergyLimit () const
 
G4double LowEnergyLimit () const
 
G4double HighEnergyActivationLimit () const
 
G4double LowEnergyActivationLimit () const
 
G4double PolarAngleLimit () const
 
G4double SecondaryThreshold () const
 
G4bool LPMFlag () const
 
G4bool DeexcitationFlag () const
 
G4bool ForceBuildTableFlag () const
 
G4bool UseAngularGeneratorFlag () const
 
void SetAngularGeneratorFlag (G4bool)
 
void SetHighEnergyLimit (G4double)
 
void SetLowEnergyLimit (G4double)
 
void SetActivationHighEnergyLimit (G4double)
 
void SetActivationLowEnergyLimit (G4double)
 
G4bool IsActive (G4double kinEnergy)
 
void SetPolarAngleLimit (G4double)
 
void SetSecondaryThreshold (G4double)
 
void SetLPMFlag (G4bool val)
 
void SetDeexcitationFlag (G4bool val)
 
void SetForceBuildTable (G4bool val)
 
void SetMasterThread (G4bool val)
 
G4bool IsMaster () const
 
G4double MaxSecondaryKinEnergy (const G4DynamicParticle *dynParticle)
 
const G4String & GetName () const
 
void SetCurrentCouple (const G4MaterialCutsCouple *)
 
const G4Element * GetCurrentElement () const
 
const G4Isotope * GetCurrentIsotope () const
 
G4bool IsLocked () const
 
void SetLocked (G4bool)
 

Additional Inherited Members

- Protected Member Functions inherited from G4VEmModel
G4ParticleChangeForLoss * GetParticleChangeForLoss ()
 
G4ParticleChangeForGamma * GetParticleChangeForGamma ()
 
virtual G4double MaxSecondaryEnergy (const G4ParticleDefinition *, G4double kineticEnergy)
 
const G4MaterialCutsCouple * CurrentCouple () const
 
void SetCurrentElement (const G4Element *)
 
- Protected Attributes inherited from G4VEmModel
G4ElementData * fElementData
 
G4VParticleChange * pParticleChange
 
G4PhysicsTable * xSectionTable
 
const std::vector< G4double > * theDensityFactor
 
const std::vector< G4int > * theDensityIdx
 
size_t idxTable
 
- Static Protected Attributes inherited from G4VEmModel
static const G4double inveplus = 1.0/CLHEP::eplus
 

Detailed Description

Definition at line 71 of file G4IonCoulombScatteringModel.hh.

Constructor & Destructor Documentation

G4IonCoulombScatteringModel::G4IonCoulombScatteringModel ( const G4String &  nam = "IonCoulombScattering")
explicit

Definition at line 75 of file G4IonCoulombScatteringModel.cc.

76  : G4VEmModel(nam),
77  cosThetaMin(1.0)
78 {
79  fNistManager = G4NistManager::Instance();
80  theIonTable = G4ParticleTable::GetParticleTable()->GetIonTable();
81  theProton = G4Proton::Proton();
82 
83  pCuts = nullptr;
84  currentMaterial = nullptr;
85  currentElement = nullptr;
86  currentCouple = nullptr;
87  fParticleChange = nullptr;
88 
89  recoilThreshold = 0.*eV;
90  heavycorr =0;
91  particle = 0;
92  mass=0;
93  currentMaterialIndex = -1;
94 
95  ioncross = new G4IonCoulombCrossSection();
96 }
G4NistManager::Instance
static G4NistManager * Instance()
Definition: G4NistManager.cc:68
G4VEmModel::G4VEmModel
G4VEmModel(const G4String &nam)
Definition: G4VEmModel.cc:68
G4ParticleTable::GetIonTable
G4IonTable * GetIonTable() const
Definition: G4ParticleTable.cc:658
G4Proton::Proton
static G4Proton * Proton()
Definition: G4Proton.cc:93
eV
static constexpr double eV
Definition: G4SIunits.hh:215
G4ParticleTable::GetParticleTable
static G4ParticleTable * GetParticleTable()
Definition: G4ParticleTable.cc:96

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G4IonCoulombScatteringModel::~G4IonCoulombScatteringModel ( )
virtual

Definition at line 101 of file G4IonCoulombScatteringModel.cc.

102 {
103  delete ioncross;
104 }

Member Function Documentation

G4double G4IonCoulombScatteringModel::ComputeCrossSectionPerAtom ( const G4ParticleDefinition *  p,
G4double  kinEnergy,
G4double  Z,
G4double  A,
G4double  cut,
G4double  emax 
)
finalvirtual

Reimplemented from G4VEmModel.

Definition at line 125 of file G4IonCoulombScatteringModel.cc.

130 {
131  SetupParticle(p);
132 
133  G4double cross = 0.0;
134 
135  DefineMaterial(CurrentCouple());
136 
137  G4int iz = G4lrint(Z);
138 
139  //from lab to pCM & mu_rel of effective particle
140  G4double tmass = proton_mass_c2;
141  if(1 < iz) {
142  tmass = fNistManager->GetAtomicMassAmu(iz)*amu_c2;
143  }
144  ioncross->SetupKinematic(kinEnergy, tmass);
145  ioncross->SetupTarget(Z, kinEnergy, heavycorr);
146  cross = ioncross->NuclearCrossSection();
147 
148  //cout<< "..........cross "<<G4BestUnit(cross,"Surface") <<endl;
149  return cross;
150 }
G4IonCoulombCrossSection::SetupTarget
void SetupTarget(G4double Z, G4double kinEnergy, G4int heavycorr)
Definition: G4IonCoulombCrossSection.cc:143
G4IonCoulombCrossSection::SetupKinematic
void SetupKinematic(G4double kinEnergy, G4double tmass)
Definition: G4IonCoulombCrossSection.cc:111
CLHEP::proton_mass_c2
static constexpr double proton_mass_c2
Definition: PhysicalConstants.h:80
G4int
int G4int
Definition: G4Types.hh:78
G4VEmModel::CurrentCouple
const G4MaterialCutsCouple * CurrentCouple() const
Definition: G4VEmModel.hh:451
CLHEP::amu_c2
static constexpr double amu_c2
Definition: PhysicalConstants.h:82
G4lrint
int G4lrint(double ad)
Definition: templates.hh:163
G4NistManager::GetAtomicMassAmu
G4double GetAtomicMassAmu(const G4String &symb) const
Definition: G4NistManager.hh:359
G4double
double G4double
Definition: G4Types.hh:76
Z
G4int Z
Definition: G4ParticleHPJENDLHEData.cc:262

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G4int G4IonCoulombScatteringModel::GetHeavyIonCorr ( )
inline

Definition at line 183 of file G4IonCoulombScatteringModel.hh.

184 {
185  return heavycorr;
186 }
void G4IonCoulombScatteringModel::Initialise ( const G4ParticleDefinition *  p,
const G4DataVector &  cuts 
)
finalvirtual

Implements G4VEmModel.

Definition at line 108 of file G4IonCoulombScatteringModel.cc.

110 {
111  SetupParticle(p);
112  currentCouple = 0;
113  currentMaterialIndex = -1;
114  ioncross->Initialise(p,cosThetaMin);
115 
116  pCuts = &cuts;
117  // G4ProductionCutsTable::GetProductionCutsTable()->GetEnergyCutsVector(3);
118  if(!fParticleChange) {
119  fParticleChange = GetParticleChangeForGamma();
120  }
121 }
G4VEmModel::GetParticleChangeForGamma
G4ParticleChangeForGamma * GetParticleChangeForGamma()
Definition: G4VEmModel.cc:132
G4IonCoulombCrossSection::Initialise
void Initialise(const G4ParticleDefinition *, G4double cosThetaLim)
Definition: G4IonCoulombCrossSection.cc:99

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void G4IonCoulombScatteringModel::SampleSecondaries ( std::vector< G4DynamicParticle * > *  fvect,
const G4MaterialCutsCouple *  couple,
const G4DynamicParticle *  dp,
G4double  tmin,
G4double  maxEnergy 
)
finalvirtual

Implements G4VEmModel.

Definition at line 154 of file G4IonCoulombScatteringModel.cc.

159 {
160  G4double kinEnergy = dp->GetKineticEnergy();
161 
162  DefineMaterial(couple);
163 
164  SetupParticle(dp->GetDefinition());
165 
166  // Choose nucleus
167  currentElement = SelectRandomAtom(couple, particle, kinEnergy);
168 
169  G4int iz = currentElement->GetZasInt();
170  G4int ia = SelectIsotopeNumber(currentElement);
171  G4double mass2 = G4NucleiProperties::GetNuclearMass(ia, iz);
172 
173  ioncross->SetupKinematic(kinEnergy, mass2);
174 
175  ioncross->SetupTarget(currentElement->GetZ(), kinEnergy, heavycorr);
176 
177  //scattering angle, z1 == (1-cost)
178  G4double z1 = ioncross->SampleCosineTheta();
179  if(z1 > 2.0) { z1 = 2.0; }
180  else if(z1 < 0.0) { z1 = 0.0; }
181 
182  G4double cost = 1.0 - z1;
183  G4double sint = sqrt(z1*(1.0 + cost));
184  G4double phi = twopi * G4UniformRand();
185 
186  // kinematics in the Lab system
187  G4double ptot = dp->GetTotalMomentum();
188  G4double e1 = dp->GetTotalEnergy();
189 
190  // Lab. system kinematics along projectile direction
191  G4LorentzVector v0 = G4LorentzVector(0, 0, ptot, e1);
192  G4double bet = ptot/(e1 + mass2);
193  G4double gam = 1.0/sqrt((1.0 - bet)*(1.0 + bet));
194 
195  // CM projectile
196  G4double momCM = gam*(ptot - bet*e1);
197  G4double eCM = gam*(e1 - bet*ptot);
198 
199  // Momentum after scattering of incident particle
200  G4double pxCM = momCM*sint*cos(phi);
201  G4double pyCM = momCM*sint*sin(phi);
202  G4double pzCM = momCM*cost;
203 
204  // CM--->Lab
205  G4LorentzVector v1(pxCM , pyCM, gam*(pzCM + bet*eCM), gam*(eCM + bet*pzCM));
206 
207  // Rotate to global system
208  G4ThreeVector dir = dp->GetMomentumDirection();
209  G4ThreeVector newDirection = v1.vect().unit();
210  newDirection.rotateUz(dir);
211 
212  fParticleChange->ProposeMomentumDirection(newDirection);
213 
214  // recoil v0 energy is kinetic
215  v0 -= v1;
216  G4double trec = v0.e();
217  G4double edep = 0.0;
218 
219  G4double tcut = recoilThreshold;
220  if(pCuts) {
221  tcut= std::max(tcut,(*pCuts)[currentMaterialIndex]);
222  //G4cout<<" tcut eV "<<tcut/eV<<endl;
223  }
224 
225  // Recoil
226  if(trec > tcut) {
227  G4ParticleDefinition* ion = theIonTable->GetIon(iz, ia, 0);
228  newDirection = v0.vect().unit();
229  newDirection.rotateUz(dir);
230  G4DynamicParticle* newdp = new G4DynamicParticle(ion, newDirection, trec);
231  fvect->push_back(newdp);
232  } else if(trec > 0.0) {
233  edep = trec;
234  fParticleChange->ProposeNonIonizingEnergyDeposit(edep);
235  }
236 
237  // finelize primary energy and energy balance
238  G4double finalT = v1.e() - mass;
239  if(finalT < 0.0) {
240  edep += finalT;
241  finalT = 0.0;
242  }
243  edep = std::max(edep, 0.0);
244  fParticleChange->SetProposedKineticEnergy(finalT);
245  fParticleChange->ProposeLocalEnergyDeposit(edep);
246 }
G4IonCoulombCrossSection::SetupTarget
void SetupTarget(G4double Z, G4double kinEnergy, G4int heavycorr)
Definition: G4IonCoulombCrossSection.cc:143
G4NucleiProperties::GetNuclearMass
static G4double GetNuclearMass(const G4double A, const G4double Z)
Definition: G4NucleiProperties.cc:64
G4IonCoulombCrossSection::SetupKinematic
void SetupKinematic(G4double kinEnergy, G4double tmass)
Definition: G4IonCoulombCrossSection.cc:111
G4DynamicParticle::GetKineticEnergy
G4double GetKineticEnergy() const
G4DynamicParticle::GetTotalEnergy
G4double GetTotalEnergy() const
G4IonTable::GetIon
G4ParticleDefinition * GetIon(G4int Z, G4int A, G4int lvl=0)
Definition: G4IonTable.cc:503
G4DynamicParticle::GetDefinition
G4ParticleDefinition * GetDefinition() const
G4int
int G4int
Definition: G4Types.hh:78
G4ParticleChangeForGamma::ProposeMomentumDirection
void ProposeMomentumDirection(G4double Px, G4double Py, G4double Pz)
Definition: G4ParticleChangeForGamma.hh:147
G4VParticleChange::ProposeLocalEnergyDeposit
void ProposeLocalEnergyDeposit(G4double anEnergyPart)
twopi
static constexpr double twopi
Definition: G4SIunits.hh:76
G4DynamicParticle::GetTotalMomentum
G4double GetTotalMomentum() const
CLHEP::HepLorentzVector::vect
Hep3Vector vect() const
G4UniformRand
#define G4UniformRand()
Definition: Randomize.hh:97
G4VParticleChange::ProposeNonIonizingEnergyDeposit
void ProposeNonIonizingEnergyDeposit(G4double anEnergyPart)
G4DynamicParticle::GetMomentumDirection
const G4ThreeVector & GetMomentumDirection() const
CLHEP::Hep3Vector::rotateUz
Hep3Vector & rotateUz(const Hep3Vector &)
Definition: ThreeVector.cc:38
G4VEmModel::SelectIsotopeNumber
G4int SelectIsotopeNumber(const G4Element *)
Definition: G4VEmModel.hh:584
G4INCL::Math::max
T max(const T t1, const T t2)
brief Return the largest of the two arguments
Definition: G4INCLGlobals.hh:112
CLHEP::Hep3Vector::unit
Hep3Vector unit() const
G4ParticleChangeForGamma::SetProposedKineticEnergy
void SetProposedKineticEnergy(G4double proposedKinEnergy)
Definition: G4ParticleChangeForGamma.hh:129
G4double
double G4double
Definition: G4Types.hh:76
G4VEmModel::SelectRandomAtom
const G4Element * SelectRandomAtom(const G4MaterialCutsCouple *, const G4ParticleDefinition *, G4double kineticEnergy, G4double cutEnergy=0.0, G4double maxEnergy=DBL_MAX)
Definition: G4VEmModel.hh:541
G4LorentzVector
CLHEP::HepLorentzVector G4LorentzVector
Definition: G4LorentzVector.hh:35

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void G4IonCoulombScatteringModel::SetHeavyIonCorr ( G4int  b)
inline

Definition at line 176 of file G4IonCoulombScatteringModel.hh.

177 {
178  heavycorr = b;
179 }
void G4IonCoulombScatteringModel::SetRecoilThreshold ( G4double  eth)
inline

Definition at line 169 of file G4IonCoulombScatteringModel.hh.

170 {
171  recoilThreshold = eth;
172 }
The documentation for this class was generated from the following files: