Geant4 10.7.0
Toolkit for the simulation of the passage of particles through matter
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Public Member Functions | Protected Attributes | List of all members
G4MicroElecLOPhononModel Class Reference

#include <G4MicroElecLOPhononModel.hh>

+ Inheritance diagram for G4MicroElecLOPhononModel:

Public Member Functions

 G4MicroElecLOPhononModel (const G4ParticleDefinition *p=0, const G4String &nam="G4MicroElecLOPhononModel")
 
 ~G4MicroElecLOPhononModel () override
 
void Initialise (const G4ParticleDefinition *, const G4DataVector &) override
 
G4double CrossSectionPerVolume (const G4Material *material, const G4ParticleDefinition *p, G4double ekin, G4double emin, G4double emax) override
 
void SampleSecondaries (std::vector< G4DynamicParticle * > *, const G4MaterialCutsCouple *, const G4DynamicParticle *, G4double tmin, G4double maxEnergy) override
 
- Public Member Functions inherited from G4VEmModel
 G4VEmModel (const G4String &nam)
 
virtual ~G4VEmModel ()
 
virtual void Initialise (const G4ParticleDefinition *, const G4DataVector &)=0
 
virtual void SampleSecondaries (std::vector< G4DynamicParticle * > *, const G4MaterialCutsCouple *, const G4DynamicParticle *, G4double tmin=0.0, G4double tmax=DBL_MAX)=0
 
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 ComputeCrossSectionPerAtom (const G4ParticleDefinition *, G4double kinEnergy, G4double Z, G4double A=0., G4double cutEnergy=0.0, G4double maxEnergy=DBL_MAX)
 
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)
 
const G4Element * SelectRandomAtom (const G4MaterialCutsCouple *, const G4ParticleDefinition *, G4double kineticEnergy, G4double cutEnergy=0.0, G4double maxEnergy=DBL_MAX)
 
const G4Element * SelectTargetAtom (const G4MaterialCutsCouple *, const G4ParticleDefinition *, G4double kineticEnergy, G4double logKineticEnergy, 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 *)
 
G4int SelectIsotopeNumber (const G4Element *)
 
void SetParticleChange (G4VParticleChange *, G4VEmFluctuationModel *f=nullptr)
 
void SetCrossSectionTable (G4PhysicsTable *, G4bool isLocal)
 
G4ElementData * GetElementData ()
 
G4PhysicsTable * GetCrossSectionTable ()
 
G4VEmFluctuationModel * GetModelOfFluctuations ()
 
G4VEmAngularDistribution * GetAngularDistribution ()
 
G4VEmModel * GetTripletModel ()
 
void SetTripletModel (G4VEmModel *)
 
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) const
 
void SetPolarAngleLimit (G4double)
 
void SetSecondaryThreshold (G4double)
 
void SetLPMFlag (G4bool val)
 
void SetDeexcitationFlag (G4bool val)
 
void SetForceBuildTable (G4bool val)
 
void SetFluctuationFlag (G4bool val)
 
void SetMasterThread (G4bool val)
 
G4bool IsMaster () const
 
void SetUseBaseMaterials (G4bool val)
 
G4bool UseBaseMaterials () 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)
 
G4VEmModel & operator= (const G4VEmModel &right)=delete
 
 G4VEmModel (const G4VEmModel &)=delete
 

Protected Attributes

G4ParticleChangeForGamma * fParticleChangeForGamma
 
- Protected Attributes inherited from G4VEmModel
G4ElementData * fElementData
 
G4VParticleChange * pParticleChange
 
G4PhysicsTable * xSectionTable
 
const G4Material * pBaseMaterial
 
const std::vector< G4double > * theDensityFactor
 
const std::vector< G4int > * theDensityIdx
 
size_t idxTable
 
G4bool lossFlucFlag
 
G4double inveplus
 
G4double pFactor
 

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 *)
 

Detailed Description

Definition at line 59 of file G4MicroElecLOPhononModel.hh.

Constructor & Destructor Documentation

◆ G4MicroElecLOPhononModel()

G4MicroElecLOPhononModel::G4MicroElecLOPhononModel ( const G4ParticleDefinition *  p = 0,
const G4String &  nam = "G4MicroElecLOPhononModel" 
)

Definition at line 61 of file G4MicroElecLOPhononModel.cc.

63 : G4VEmModel(nam),isInitialised(false)
64{
65 abs = false;
66 fParticleChangeForGamma = GetParticleChangeForGamma();
67 G4cout << "SiO2 Phonon model is constructed " << G4endl;
68}
G4endl
#define G4endl
Definition: G4ios.hh:57
G4cout
G4GLOB_DLL std::ostream G4cout
G4MicroElecLOPhononModel::fParticleChangeForGamma
G4ParticleChangeForGamma * fParticleChangeForGamma
Definition: G4MicroElecLOPhononModel.hh:81
G4VEmModel::GetParticleChangeForGamma
G4ParticleChangeForGamma * GetParticleChangeForGamma()
Definition: G4VEmModel.cc:133

◆ ~G4MicroElecLOPhononModel()

G4MicroElecLOPhononModel::~G4MicroElecLOPhononModel ( )
override

Definition at line 72 of file G4MicroElecLOPhononModel.cc.

73{}

Member Function Documentation

◆ CrossSectionPerVolume()

G4double G4MicroElecLOPhononModel::CrossSectionPerVolume ( const G4Material *  material,
const G4ParticleDefinition *  p,
G4double  ekin,
G4double  emin,
G4double  emax 
)
overridevirtual

Reimplemented from G4VEmModel.

Definition at line 92 of file G4MicroElecLOPhononModel.cc.

96{
97 G4double e = CLHEP::eplus / coulomb,
98
99 m0 = CLHEP::electron_mass_c2 / c_squared / kg,
100 h = CLHEP::hbar_Planck / (m2*kg / s),
101 eps0 = CLHEP::epsilon0 / (farad / m),
102 kb = CLHEP::k_Boltzmann / (joule / kelvin);
103 G4double eps = 9,
104 einf = 3,
105 T = 300;
106
107 isOkToBeInitialised = true;
108
109 const G4DataVector cuts;
110 Initialise(p, cuts);
111
112 if (material->GetName()!="G4_SILICON_DIOXIDE") return 1/DBL_MAX;
113
114 G4double E =(ekin/eV)*e;
115
116 // Parameters SiO2
117 eps = 3.84;
118 einf = 2.25;
119 phononEnergy = (0.75*0.153+0.25*0.063 )* eV;
120 G4double hw = (phononEnergy / eV) * e;
121 G4double n = 1.0 / (std::exp(hw / (kb*T)) - 1); //Phonon distribution
122
123 if (abs) { //Absorption
124 Eprim = E + hw;
125 signe = -1;
126 }
127 else { //Emission
128 Eprim = E - hw;
129 signe = +1;
130 }
131
132 G4double racine = std::sqrt(1. + ((-signe*hw) / E));
133
134 G4double P = (std::pow(e, 2) / (4 * pi*eps0*h*h)) * (n + 0.5 + signe*0.5) * ((1 / einf) - (1 / eps)) * std::sqrt(m0 / (2 * E)) *hw* std::log((1 + racine) / (signe * 1 + ((-signe)*racine)));
135
136 G4double MFP = (std::sqrt(2. * E / m0) / P)*m;
137
138 return 2 / MFP;
139}
G4double
double G4double
Definition: G4Types.hh:83
G4Material::GetName
const G4String & GetName() const
Definition: G4Material.hh:175
G4MicroElecLOPhononModel::Initialise
void Initialise(const G4ParticleDefinition *, const G4DataVector &) override
Definition: G4MicroElecLOPhononModel.cc:77
G4INCL::Math::pi
const G4double pi
Definition: G4INCLGlobals.hh:68
DBL_MAX
#define DBL_MAX
Definition: templates.hh:62

◆ Initialise()

void G4MicroElecLOPhononModel::Initialise ( const G4ParticleDefinition *  ,
const G4DataVector &   
)
overridevirtual

Implements G4VEmModel.

Definition at line 77 of file G4MicroElecLOPhononModel.cc.

79{
80
81 if (isOkToBeInitialised == true && isInitialised == false) {
82 G4cout << "Calling G4MicroElecLOPhononModel" << "::Initialise()" << G4endl;
83
84 if (isInitialised) { return; }
85 fParticleChangeForGamma = GetParticleChangeForGamma();
86 isInitialised = true;
87 }
88}

Referenced by CrossSectionPerVolume().

◆ SampleSecondaries()

void G4MicroElecLOPhononModel::SampleSecondaries ( std::vector< G4DynamicParticle * > *  ,
const G4MaterialCutsCouple *  ,
const G4DynamicParticle *  aDynamicElectron,
G4double  tmin,
G4double  maxEnergy 
)
overridevirtual

Implements G4VEmModel.

Definition at line 143 of file G4MicroElecLOPhononModel.cc.

148{
149
150 G4double E = aDynamicElectron->GetKineticEnergy();
151
152 if (abs) {
153 Eprim = E + phononEnergy;
154 }
155 else {
156 Eprim = E - phononEnergy;
157 }
158 G4double rand = G4UniformRand();
159 G4double B = (E + Eprim + 2 * std::sqrt(E*Eprim)) / (E + Eprim - 2 * std::sqrt(E*Eprim));
160 G4double cosTheta = ((E + Eprim) / (2 * std::sqrt(E*Eprim)))*(1 - std::pow(B, rand)) + std::pow(B, rand);
161
162 if(Interband){
163 cosTheta = 1 - 2 * G4UniformRand(); //Isotrope
164 }
165 G4double phi = 2. * pi * G4UniformRand();
166 G4ThreeVector zVers = aDynamicElectron->GetMomentumDirection();
167 G4ThreeVector xVers = zVers.orthogonal();
168 G4ThreeVector yVers = zVers.cross(xVers);
169
170 G4double xDir = std::sqrt(1. - cosTheta*cosTheta);
171 G4double yDir = xDir;
172 xDir *= std::cos(phi);
173 yDir *= std::sin(phi);
174
175 G4ThreeVector zPrimeVers((xDir*xVers + yDir*yVers + cosTheta*zVers));
176
177 fParticleChangeForGamma->ProposeMomentumDirection(zPrimeVers.unit());
178 fParticleChangeForGamma->SetProposedKineticEnergy(Eprim);
179}
B
double B(double temperature)
Definition: G4DNAElectronHoleRecombination.cc:69
G4UniformRand
#define G4UniformRand()
Definition: Randomize.hh:52
CLHEP::Hep3Vector::orthogonal
Hep3Vector orthogonal() const
CLHEP::Hep3Vector::cross
Hep3Vector cross(const Hep3Vector &) const
G4DynamicParticle::GetMomentumDirection
const G4ThreeVector & GetMomentumDirection() const
G4DynamicParticle::GetKineticEnergy
G4double GetKineticEnergy() const
G4ParticleChangeForGamma::SetProposedKineticEnergy
void SetProposedKineticEnergy(G4double proposedKinEnergy)
Definition: G4ParticleChangeForGamma.hh:119
G4ParticleChangeForGamma::ProposeMomentumDirection
void ProposeMomentumDirection(G4double Px, G4double Py, G4double Pz)
Definition: G4ParticleChangeForGamma.hh:139

Member Data Documentation

◆ fParticleChangeForGamma

G4ParticleChangeForGamma* G4MicroElecLOPhononModel::fParticleChangeForGamma
protected

Definition at line 81 of file G4MicroElecLOPhononModel.hh.

Referenced by G4MicroElecLOPhononModel(), Initialise(), and SampleSecondaries().

The documentation for this class was generated from the following files: