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Public Member Functions | Protected Attributes
G4LivermorePolarizedRayleighModel Class Reference

#include <G4LivermorePolarizedRayleighModel.hh>

Inheritance diagram for G4LivermorePolarizedRayleighModel:
G4VEmModel

Public Member Functions

 G4LivermorePolarizedRayleighModel (const G4ParticleDefinition *p=0, const G4String &nam="LivermorePolarizedRayleigh")
 
virtual ~G4LivermorePolarizedRayleighModel ()
 
virtual void Initialise (const G4ParticleDefinition *, const G4DataVector &)
 
virtual G4double ComputeCrossSectionPerAtom (const G4ParticleDefinition *, G4double kinEnergy, G4double Z, G4double A=0, G4double cut=0, G4double emax=DBL_MAX)
 
virtual void SampleSecondaries (std::vector< G4DynamicParticle * > *, const G4MaterialCutsCouple *, const G4DynamicParticle *, G4double tmin, G4double maxEnergy)
 
- 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 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 *)
 
void InitialiseElementSelectors (const G4ParticleDefinition *, const G4DataVector &)
 
std::vector
< G4EmElementSelector * > * 		GetElementSelectors ()
 
void SetElementSelectors (std::vector< G4EmElementSelector * > *)
 
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=0)
 
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
 

Protected Attributes

G4ParticleChangeForGamma * fParticleChange
 
- Protected Attributes inherited from G4VEmModel
G4ElementData * fElementData
 
G4VParticleChange * pParticleChange
 
G4PhysicsTable * xSectionTable
 
const std::vector< G4double > * theDensityFactor
 
const std::vector< G4int > * theDensityIdx
 
size_t idxTable
 

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 43 of file G4LivermorePolarizedRayleighModel.hh.

Constructor & Destructor Documentation

G4LivermorePolarizedRayleighModel::G4LivermorePolarizedRayleighModel ( const G4ParticleDefinition *  p = 0,
const G4String &  nam = "LivermorePolarizedRayleigh" 
)

Definition at line 53 of file G4LivermorePolarizedRayleighModel.cc.

References python.hepunit::eV, G4cout, G4endl, python.hepunit::GeV, and G4VEmModel::SetHighEnergyLimit().

55  :G4VEmModel(nam),fParticleChange(0),isInitialised(false),
56  crossSectionHandler(0),formFactorData(0)
57 {
58  lowEnergyLimit = 250 * eV;
59  highEnergyLimit = 100 * GeV;
60 
61  //SetLowEnergyLimit(lowEnergyLimit);
62  SetHighEnergyLimit(highEnergyLimit);
63  //
64  verboseLevel= 0;
65  // Verbosity scale:
66  // 0 = nothing
67  // 1 = warning for energy non-conservation
68  // 2 = details of energy budget
69  // 3 = calculation of cross sections, file openings, sampling of atoms
70  // 4 = entering in methods
71 
72  if(verboseLevel > 0) {
73  G4cout << "Livermore Polarized Rayleigh is constructed " << G4endl
74  << "Energy range: "
75  << lowEnergyLimit / eV << " eV - "
76  << highEnergyLimit / GeV << " GeV"
77  << G4endl;
78  }
79 }
G4VEmModel::G4VEmModel
G4VEmModel(const G4String &nam)
Definition: G4VEmModel.cc:65
G4VEmModel::SetHighEnergyLimit
void SetHighEnergyLimit(G4double)
Definition: G4VEmModel.hh:683
G4cout
G4GLOB_DLL std::ostream G4cout
G4endl
#define G4endl
Definition: G4ios.hh:61
G4LivermorePolarizedRayleighModel::~G4LivermorePolarizedRayleighModel ( )
virtual

Definition at line 83 of file G4LivermorePolarizedRayleighModel.cc.

84 {
85  if (crossSectionHandler) delete crossSectionHandler;
86  if (formFactorData) delete formFactorData;
87 }

Member Function Documentation

G4double G4LivermorePolarizedRayleighModel::ComputeCrossSectionPerAtom ( const G4ParticleDefinition *  ,
G4double  kinEnergy,
G4double  Z,
G4double  A = 0,
G4double  cut = 0,
G4double  emax = DBL_MAX 
)
virtual

Reimplemented from G4VEmModel.

Definition at line 145 of file G4LivermorePolarizedRayleighModel.cc.

References G4VCrossSectionHandler::FindValue(), G4cout, and G4endl.

150 {
151  if (verboseLevel > 3)
152  G4cout << "Calling CrossSectionPerAtom() of G4LivermorePolarizedRayleighModel" << G4endl;
153 
154  if (GammaEnergy < lowEnergyLimit || GammaEnergy > highEnergyLimit) return 0.0;
155 
156  G4double cs = crossSectionHandler->FindValue(G4int(Z), GammaEnergy);
157  return cs;
158 }
G4int
int G4int
Definition: G4Types.hh:78
G4VCrossSectionHandler::FindValue
G4double FindValue(G4int Z, G4double e) const
Definition: G4VCrossSectionHandler.cc:379
G4cout
G4GLOB_DLL std::ostream G4cout
G4endl
#define G4endl
Definition: G4ios.hh:61
G4double
double G4double
Definition: G4Types.hh:76
void G4LivermorePolarizedRayleighModel::Initialise ( const G4ParticleDefinition *  particle,
const G4DataVector &  cuts 
)
virtual

Implements G4VEmModel.

Definition at line 91 of file G4LivermorePolarizedRayleighModel.cc.

References G4VCrossSectionHandler::Clear(), python.hepunit::eV, fParticleChange, G4cout, G4endl, G4VEmModel::GetParticleChangeForGamma(), python.hepunit::GeV, G4VEmModel::HighEnergyLimit(), G4VEmModel::InitialiseElementSelectors(), G4VEMDataSet::LoadData(), G4VCrossSectionHandler::LoadData(), and G4VEmModel::LowEnergyLimit().

93 {
94 // Rayleigh process: The Quantum Theory of Radiation
95 // W. Heitler, Oxford at the Clarendon Press, Oxford (1954)
96 // Scattering function: A simple model of photon transport
97 // D.E. Cullen, Nucl. Instr. Meth. in Phys. Res. B 101 (1995) 499-510
98 // Polarization of the outcoming photon: Beam test of a prototype detector array for the PoGO astronomical hard X-ray/soft gamma-ray polarimeter
99 // T. Mizuno et al., Nucl. Instr. Meth. in Phys. Res. A 540 (2005) 158-168
100 
101  if (verboseLevel > 3)
102  G4cout << "Calling G4LivermorePolarizedRayleighModel::Initialise()" << G4endl;
103 
104  if (crossSectionHandler)
105  {
106  crossSectionHandler->Clear();
107  delete crossSectionHandler;
108  }
109 
110  // Read data files for all materials
111 
112  crossSectionHandler = new G4CrossSectionHandler;
113  crossSectionHandler->Clear();
114  G4String crossSectionFile = "rayl/re-cs-";
115  crossSectionHandler->LoadData(crossSectionFile);
116 
117  G4VDataSetAlgorithm* ffInterpolation = new G4LogLogInterpolation;
118  G4String formFactorFile = "rayl/re-ff-";
119  formFactorData = new G4CompositeEMDataSet(ffInterpolation,1.,1.);
120  formFactorData->LoadData(formFactorFile);
121 
122  InitialiseElementSelectors(particle,cuts);
123 
124  //
125  if (verboseLevel > 2)
126  G4cout << "Loaded cross section files for Livermore Polarized Rayleigh model" << G4endl;
127 
128  InitialiseElementSelectors(particle,cuts);
129 
130  if (verboseLevel > 0) {
131  G4cout << "Livermore Polarized Rayleigh model is initialized " << G4endl
132  << "Energy range: "
133  << LowEnergyLimit() / eV << " eV - "
134  << HighEnergyLimit() / GeV << " GeV"
135  << G4endl;
136  }
137 
138  if(isInitialised) return;
139  fParticleChange = GetParticleChangeForGamma();
140  isInitialised = true;
141 }
G4VEmModel::LowEnergyLimit
G4double LowEnergyLimit() const
Definition: G4VEmModel.hh:599
G4VEmModel::InitialiseElementSelectors
void InitialiseElementSelectors(const G4ParticleDefinition *, const G4DataVector &)
Definition: G4VEmModel.cc:135
G4VEmModel::HighEnergyLimit
G4double HighEnergyLimit() const
Definition: G4VEmModel.hh:592
G4cout
G4GLOB_DLL std::ostream G4cout
G4VCrossSectionHandler::LoadData
void LoadData(const G4String &dataFile)
Definition: G4VCrossSectionHandler.cc:187
G4VEMDataSet::LoadData
virtual G4bool LoadData(const G4String &fileName)=0
G4endl
#define G4endl
Definition: G4ios.hh:61
G4VEmModel::GetParticleChangeForGamma
G4ParticleChangeForGamma * GetParticleChangeForGamma()
Definition: G4VEmModel.cc:121
void G4LivermorePolarizedRayleighModel::SampleSecondaries ( std::vector< G4DynamicParticle * > *  ,
const G4MaterialCutsCouple *  couple,
const G4DynamicParticle *  aDynamicGamma,
G4double  tmin,
G4double  maxEnergy 
)
virtual

Implements G4VEmModel.

Definition at line 162 of file G4LivermorePolarizedRayleighModel.cc.

References CLHEP::Hep3Vector::cross(), fParticleChange, fStopAndKill, G4cout, G4endl, G4DynamicParticle::GetDefinition(), G4DynamicParticle::GetKineticEnergy(), G4DynamicParticle::GetMomentumDirection(), G4Element::GetZ(), G4VParticleChange::ProposeLocalEnergyDeposit(), G4ParticleChangeForGamma::ProposeMomentumDirection(), G4ParticleChangeForGamma::ProposePolarization(), G4VParticleChange::ProposeTrackStatus(), G4VEmModel::SelectRandomAtom(), G4ParticleChangeForGamma::SetProposedKineticEnergy(), CLHEP::Hep3Vector::unit(), test::x, and z.

167 {
168  if (verboseLevel > 3)
169  G4cout << "Calling SampleSecondaries() of G4LivermorePolarizedRayleighModel" << G4endl;
170 
171  G4double photonEnergy0 = aDynamicGamma->GetKineticEnergy();
172 
173  if (photonEnergy0 <= lowEnergyLimit)
174  {
175  fParticleChange->ProposeTrackStatus(fStopAndKill);
176  fParticleChange->SetProposedKineticEnergy(0.);
177  fParticleChange->ProposeLocalEnergyDeposit(photonEnergy0);
178  return ;
179  }
180 
181  G4ParticleMomentum photonDirection0 = aDynamicGamma->GetMomentumDirection();
182 
183  // Select randomly one element in the current material
184  // G4int Z = crossSectionHandler->SelectRandomAtom(couple,photonEnergy0);
185  const G4ParticleDefinition* particle = aDynamicGamma->GetDefinition();
186  const G4Element* elm = SelectRandomAtom(couple,particle,photonEnergy0);
187  G4int Z = (G4int)elm->GetZ();
188 
189  G4double outcomingPhotonCosTheta = GenerateCosTheta(photonEnergy0, Z);
190  G4double outcomingPhotonPhi = GeneratePhi(outcomingPhotonCosTheta);
191  G4double beta=GeneratePolarizationAngle();
192 
193  // incomingPhoton reference frame:
194  // z = versor parallel to the incomingPhotonDirection
195  // x = versor parallel to the incomingPhotonPolarization
196  // y = defined as z^x
197 
198  // outgoingPhoton reference frame:
199  // z' = versor parallel to the outgoingPhotonDirection
200  // x' = defined as x-x*z'z' normalized
201  // y' = defined as z'^x'
202 
203  G4ThreeVector z(aDynamicGamma->GetMomentumDirection().unit());
204  G4ThreeVector x(GetPhotonPolarization(*aDynamicGamma));
205  G4ThreeVector y(z.cross(x));
206 
207  // z' = std::cos(phi)*std::sin(theta) x + std::sin(phi)*std::sin(theta) y + std::cos(theta) z
208  G4double xDir;
209  G4double yDir;
210  G4double zDir;
211  zDir=outcomingPhotonCosTheta;
212  xDir=std::sqrt(1-outcomingPhotonCosTheta*outcomingPhotonCosTheta);
213  yDir=xDir;
214  xDir*=std::cos(outcomingPhotonPhi);
215  yDir*=std::sin(outcomingPhotonPhi);
216 
217  G4ThreeVector zPrime((xDir*x + yDir*y + zDir*z).unit());
218  G4ThreeVector xPrime(x.perpPart(zPrime).unit());
219  G4ThreeVector yPrime(zPrime.cross(xPrime));
220 
221  // outgoingPhotonPolarization is directed as x' std::cos(beta) + y' std::sin(beta)
222  G4ThreeVector outcomingPhotonPolarization(xPrime*std::cos(beta) + yPrime*std::sin(beta));
223 
224  fParticleChange->ProposeMomentumDirection(zPrime);
225  fParticleChange->ProposePolarization(outcomingPhotonPolarization);
226  fParticleChange->SetProposedKineticEnergy(photonEnergy0);
227 
228 }
G4DynamicParticle::GetKineticEnergy
G4double GetKineticEnergy() const
z
G4double z
Definition: TRTMaterials.hh:39
G4Element::GetZ
G4double GetZ() const
Definition: G4Element.hh:131
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)
G4cout
G4GLOB_DLL std::ostream G4cout
G4DynamicParticle::GetMomentumDirection
const G4ThreeVector & GetMomentumDirection() const
G4ParticleChangeForGamma::ProposePolarization
void ProposePolarization(const G4ThreeVector &dir)
Definition: G4ParticleChangeForGamma.hh:166
CLHEP::Hep3Vector::unit
Hep3Vector unit() const
fStopAndKill
Definition: G4TrackStatus.hh:56
G4ParticleChangeForGamma::SetProposedKineticEnergy
void SetProposedKineticEnergy(G4double proposedKinEnergy)
Definition: G4ParticleChangeForGamma.hh:129
G4endl
#define G4endl
Definition: G4ios.hh:61
G4double
double G4double
Definition: G4Types.hh:76
G4VParticleChange::ProposeTrackStatus
void ProposeTrackStatus(G4TrackStatus status)
G4VEmModel::SelectRandomAtom
const G4Element * SelectRandomAtom(const G4MaterialCutsCouple *, const G4ParticleDefinition *, G4double kineticEnergy, G4double cutEnergy=0.0, G4double maxEnergy=DBL_MAX)
Definition: G4VEmModel.hh:510

Field Documentation

G4ParticleChangeForGamma* G4LivermorePolarizedRayleighModel::fParticleChange
protected

Definition at line 71 of file G4LivermorePolarizedRayleighModel.hh.

Referenced by Initialise(), and SampleSecondaries().

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