Geant4 11.3.0
Toolkit for the simulation of the passage of particles through matter
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Public Member Functions | List of all members
G4JAEAElasticScatteringModel Class Reference

#include <G4JAEAElasticScatteringModel.hh>

+ Inheritance diagram for G4JAEAElasticScatteringModel:

Public Member Functions

 G4JAEAElasticScatteringModel ()
 
virtual ~G4JAEAElasticScatteringModel ()
 
void Initialise (const G4ParticleDefinition *, const G4DataVector &) override
 
void InitialiseLocal (const G4ParticleDefinition *, G4VEmModel *masterModel) override
 
void InitialiseForElement (const G4ParticleDefinition *, G4int Z) override
 
G4double ComputeCrossSectionPerAtom (const G4ParticleDefinition *, G4double kinEnergy, G4double Z, G4double A=0, G4double cut=0, G4double emax=DBL_MAX) override
 
void SampleSecondaries (std::vector< G4DynamicParticle * > *, const G4MaterialCutsCouple *, const G4DynamicParticle *, G4double tmin, G4double maxEnergy) override
 
void SetLowEnergyThreshold (G4double val)
 
void SetDebugVerbosity (G4int val)
 
G4JAEAElasticScatteringModel & operator= (const G4JAEAElasticScatteringModel &right)=delete
 
 G4JAEAElasticScatteringModel (const G4JAEAElasticScatteringModel &)=delete
 
- Public Member Functions inherited from G4VEmModel
 G4VEmModel (const G4String &nam)
 
virtual ~G4VEmModel ()
 
virtual void InitialiseForMaterial (const G4ParticleDefinition *, const G4Material *)
 
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 *, const G4double &length, G4double &eloss)
 
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 FillNumberOfSecondaries (G4int &numberOfTriplets, G4int &numberOfRecoil)
 
virtual void ModelDescription (std::ostream &outFile) const
 
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)
 
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)
 
const G4Element * GetCurrentElement (const G4Material *mat=nullptr) const
 
G4int SelectRandomAtomNumber (const G4Material *) const
 
const G4Isotope * GetCurrentIsotope (const G4Element *elm=nullptr) const
 
G4int SelectIsotopeNumber (const G4Element *) const
 
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 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 SetDeexcitationFlag (G4bool val)
 
void SetForceBuildTable (G4bool val)
 
void SetFluctuationFlag (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 *)
 
G4bool IsLocked () const
 
void SetLocked (G4bool)
 
void SetLPMFlag (G4bool)
 
void SetMasterThread (G4bool)
 
G4VEmModel & operator= (const G4VEmModel &right)=delete
 
 G4VEmModel (const G4VEmModel &)=delete
 

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 = nullptr
 
G4VParticleChange * pParticleChange = nullptr
 
G4PhysicsTable * xSectionTable = nullptr
 
const G4Material * pBaseMaterial = nullptr
 
const std::vector< G4double > * theDensityFactor = nullptr
 
const std::vector< G4int > * theDensityIdx = nullptr
 
G4double inveplus
 
G4double pFactor = 1.0
 
std::size_t currentCoupleIndex = 0
 
std::size_t basedCoupleIndex = 0
 
G4bool lossFlucFlag = true
 

Detailed Description

Definition at line 51 of file G4JAEAElasticScatteringModel.hh.

Constructor & Destructor Documentation

◆ G4JAEAElasticScatteringModel() [1/2]

G4JAEAElasticScatteringModel::G4JAEAElasticScatteringModel ( )
explicit

Definition at line 59 of file G4JAEAElasticScatteringModel.cc.

60 :G4VEmModel("G4JAEAElasticScatteringModel"),isInitialised(false)
61{
62 fParticleChange = nullptr;
63 //Low energy limit for G4JAEAElasticScatteringModel process.
64 lowEnergyLimit = 10 * keV;
65
66 verboseLevel= 0;
67 // Verbosity scale for debugging purposes:
68 // 0 = nothing
69 // 1 = calculation of cross sections, file openings...
70 // 2 = entering in methods
71
72 if(verboseLevel > 0)
73 {
74 G4cout << "G4JAEAElasticScatteringModel is constructed " << G4endl;
75 }
76}
G4endl
#define G4endl
Definition G4ios.hh:67
G4cout
G4GLOB_DLL std::ostream G4cout
G4VEmModel::G4VEmModel
G4VEmModel(const G4String &nam)
Definition G4VEmModel.cc:67

Referenced by G4JAEAElasticScatteringModel(), and operator=().

◆ ~G4JAEAElasticScatteringModel()

G4JAEAElasticScatteringModel::~G4JAEAElasticScatteringModel ( )
virtual

Definition at line 80 of file G4JAEAElasticScatteringModel.cc.

81{
82 if(IsMaster()) {
83 for(G4int i=0; i<=maxZ; ++i) {
84 if(dataCS[i]) {
85 delete dataCS[i];
86 dataCS[i] = nullptr;
87 }
88 if (ES_Data[i]){
89 delete ES_Data[i];
90 ES_Data[i] = nullptr;
91 }
92 }
93 }
94}
G4int
int G4int
Definition G4Types.hh:85
G4VEmModel::IsMaster
G4bool IsMaster() const
Definition G4VEmModel.hh:710

◆ G4JAEAElasticScatteringModel() [2/2]

G4JAEAElasticScatteringModel::G4JAEAElasticScatteringModel ( const G4JAEAElasticScatteringModel & )
delete

Member Function Documentation

◆ ComputeCrossSectionPerAtom()

G4double G4JAEAElasticScatteringModel::ComputeCrossSectionPerAtom ( const G4ParticleDefinition * ,
G4double kinEnergy,
G4double Z,
G4double A = 0,
G4double cut = 0,
G4double emax = DBL_MAX )
overridevirtual

Reimplemented from G4VEmModel.

Definition at line 229 of file G4JAEAElasticScatteringModel.cc.

234{
235 if (verboseLevel > 2)
236 {
237 G4cout << "G4JAEAElasticScatteringModel::ComputeCrossSectionPerAtom()"
238 << G4endl;
239 }
240
241 if(GammaEnergy < lowEnergyLimit) { return 0.0; }
242
243 G4double xs = 0.0;
244
245 G4int intZ = G4lrint(Z);
246
247 if(intZ < 1 || intZ > maxZ) { return xs; }
248
249 G4PhysicsFreeVector* pv = dataCS[intZ];
250
251 // if element was not initialised
252 // do initialisation safely for MT mode
253 if(!pv) {
254 InitialiseForElement(0, intZ);
255 pv = dataCS[intZ];
256 if(!pv) { return xs; }
257 }
258
259 G4int n = G4int(pv->GetVectorLength() - 1);
260
261 G4double e = GammaEnergy;
262 if(e >= pv->Energy(n)) {
263 xs = (*pv)[n];
264 } else if(e >= pv->Energy(0)) {
265 xs = pv->Value(e);
266 }
267
268 if(verboseLevel > 0)
269 {
270 G4cout << "****** DEBUG: tcs value for Z=" << Z << " at energy (MeV)="
271 << e << G4endl;
272 G4cout << " cs (Geant4 internal unit)=" << xs << G4endl;
273 G4cout << " -> first E*E*cs value in CS data file (iu) =" << (*pv)[0]
274 << G4endl;
275 G4cout << " -> last E*E*cs value in CS data file (iu) =" << (*pv)[n]
276 << G4endl;
277 G4cout << "*********************************************************"
278 << G4endl;
279 }
280
281 return (xs);
282}
G4double
double G4double
Definition G4Types.hh:83
G4JAEAElasticScatteringModel::InitialiseForElement
void InitialiseForElement(const G4ParticleDefinition *, G4int Z) override
Definition G4JAEAElasticScatteringModel.cc:385
G4PhysicsVector::Energy
G4double Energy(const std::size_t index) const
G4PhysicsVector::Value
G4double Value(const G4double energy, std::size_t &lastidx) const
G4PhysicsVector::GetVectorLength
std::size_t GetVectorLength() const
G4lrint
int G4lrint(double ad)
Definition templates.hh:134

◆ Initialise()

void G4JAEAElasticScatteringModel::Initialise ( const G4ParticleDefinition * particle,
const G4DataVector & cuts )
overridevirtual

Implements G4VEmModel.

Definition at line 98 of file G4JAEAElasticScatteringModel.cc.

100{
101 if (verboseLevel > 1)
102 {
103 G4cout << "Calling Initialise() of G4JAEAElasticScatteringModel." << G4endl
104 << "Energy range: "
105 << LowEnergyLimit() / eV << " eV - "
106 << HighEnergyLimit() / GeV << " GeV"
107 << G4endl;
108 }
109
110 if(IsMaster()) {
111 // Initialise element selector
112 InitialiseElementSelectors(particle, cuts);
113
114 // Access to elements
115 const char* path = G4FindDataDir("G4LEDATA");
116 G4ProductionCutsTable* theCoupleTable =
117 G4ProductionCutsTable::GetProductionCutsTable();
118 G4int numOfCouples = (G4int)theCoupleTable->GetTableSize();
119
120 for(G4int i=0; i<numOfCouples; ++i)
121 {
122 const G4MaterialCutsCouple* couple =
123 theCoupleTable->GetMaterialCutsCouple(i);
124 const G4Material* material = couple->GetMaterial();
125 const G4ElementVector* theElementVector = material->GetElementVector();
126 std::size_t nelm = material->GetNumberOfElements();
127
128 for (std::size_t j=0; j<nelm; ++j)
129 {
130 G4int Z = G4lrint((*theElementVector)[j]->GetZ());
131 if(Z < 1) { Z = 1; }
132 else if(Z > maxZ) { Z = maxZ; }
133 if( (!dataCS[Z]) ) { ReadData(Z, path); }
134 }
135 }
136 }
137
138 if(isInitialised) { return; }
139 fParticleChange = GetParticleChangeForGamma();
140 isInitialised = true;
141
142}
G4ElementVector
std::vector< const G4Element * > G4ElementVector
Definition G4ElementVector.hh:33
G4FindDataDir
const char * G4FindDataDir(const char *)
Definition G4FindDataDir.cc:94
G4MaterialCutsCouple::GetMaterial
const G4Material * GetMaterial() const
Definition G4MaterialCutsCouple.hh:166
G4Material::GetElementVector
const G4ElementVector * GetElementVector() const
Definition G4Material.hh:183
G4Material::GetNumberOfElements
std::size_t GetNumberOfElements() const
Definition G4Material.hh:180
G4ProductionCutsTable::GetMaterialCutsCouple
const G4MaterialCutsCouple * GetMaterialCutsCouple(G4int i) const
Definition G4ProductionCutsTable.hh:256
G4ProductionCutsTable::GetTableSize
std::size_t GetTableSize() const
Definition G4ProductionCutsTable.hh:249
G4ProductionCutsTable::GetProductionCutsTable
static G4ProductionCutsTable * GetProductionCutsTable()
Definition G4ProductionCutsTable.cc:58
G4VEmModel::GetParticleChangeForGamma
G4ParticleChangeForGamma * GetParticleChangeForGamma()
Definition G4VEmModel.cc:121
G4VEmModel::LowEnergyLimit
G4double LowEnergyLimit() const
Definition G4VEmModel.hh:640
G4VEmModel::HighEnergyLimit
G4double HighEnergyLimit() const
Definition G4VEmModel.hh:633
G4VEmModel::InitialiseElementSelectors
void InitialiseElementSelectors(const G4ParticleDefinition *, const G4DataVector &)
Definition G4VEmModel.cc:136

◆ InitialiseForElement()

void G4JAEAElasticScatteringModel::InitialiseForElement ( const G4ParticleDefinition * ,
G4int Z )
overridevirtual

Reimplemented from G4VEmModel.

Definition at line 385 of file G4JAEAElasticScatteringModel.cc.

387{
388 G4AutoLock l(&G4JAEAElasticScatteringModelMutex);
389 if(!dataCS[Z]) { ReadData(Z); }
390 l.unlock();
391}
G4AutoLock
G4TemplateAutoLock< G4Mutex > G4AutoLock
Definition G4AutoLock.hh:582

Referenced by ComputeCrossSectionPerAtom().

◆ InitialiseLocal()

void G4JAEAElasticScatteringModel::InitialiseLocal ( const G4ParticleDefinition * ,
G4VEmModel * masterModel )
overridevirtual

Reimplemented from G4VEmModel.

Definition at line 146 of file G4JAEAElasticScatteringModel.cc.

148{
149 SetElementSelectors(masterModel->GetElementSelectors());
150}
G4VEmModel::SetElementSelectors
void SetElementSelectors(std::vector< G4EmElementSelector * > *)
Definition G4VEmModel.hh:809
G4VEmModel::GetElementSelectors
std::vector< G4EmElementSelector * > * GetElementSelectors()
Definition G4VEmModel.hh:801

◆ operator=()

G4JAEAElasticScatteringModel & G4JAEAElasticScatteringModel::operator= ( const G4JAEAElasticScatteringModel & right)
delete

◆ SampleSecondaries()

void G4JAEAElasticScatteringModel::SampleSecondaries ( std::vector< G4DynamicParticle * > * ,
const G4MaterialCutsCouple * couple,
const G4DynamicParticle * aDynamicGamma,
G4double tmin,
G4double maxEnergy )
overridevirtual

Implements G4VEmModel.

Definition at line 286 of file G4JAEAElasticScatteringModel.cc.

291{
292 if (verboseLevel > 2) {
293 G4cout << "Calling SampleSecondaries() of G4JAEAElasticScatteringModel."
294 << G4endl;
295 }
296
297 G4double photonEnergy0 = aDynamicGamma->GetKineticEnergy();
298
299 // Absorption of low-energy gamma
300 if (photonEnergy0 <= lowEnergyLimit)
301 {
302 fParticleChange->ProposeTrackStatus(fStopAndKill);
303 fParticleChange->SetProposedKineticEnergy(0.);
304 fParticleChange->ProposeLocalEnergyDeposit(photonEnergy0);
305 return;
306 }
307
308 //Warning if the incoming photon has polarization
309 G4double Xi1=0, Xi2=0, Xi3=0;
310 G4ThreeVector gammaPolarization0 = aDynamicGamma->GetPolarization();
311 Xi1=gammaPolarization0.x();
312 Xi2=gammaPolarization0.y();
313 Xi3=gammaPolarization0.z();
314
315 G4double polarization_magnitude=Xi1*Xi1+Xi2*Xi2+Xi3*Xi3;
316 if ((polarization_magnitude)>0 || (Xi1*Xi1>0) || (Xi2*Xi2>0) || (Xi3*Xi3>0))
317 {
318 G4cout<<"WARNING: G4JAEAElasticScatteringModel is only compatible with non-polarized photons."
319 <<G4endl;
320 G4cout<<"The event is ignored."<<G4endl;
321 return;
322 }
323
324 // Select randomly one element in the current material
325 const G4ParticleDefinition* particle = aDynamicGamma->GetDefinition();
326 const G4Element* elm = SelectRandomAtom(couple,particle,photonEnergy0);
327 G4int Z = G4lrint(elm->GetZ());
328
329 G4int energyindex=round(100*photonEnergy0)-1;
330 /*
331 Getting the normalized probablity distrbution function and
332 normalization factor to create the probability distribution function
333 */
334 G4double a1=0, a2=0, a3=0,a4=0;
335 G4double normdist=0;
336 for (G4int i=0;i<=180;++i)
337 {
338 a1=ES_Data[Z]->at(4*i+300+181*4*(energyindex));
339 a2=ES_Data[Z]->at(4*i+1+300+181*4*(energyindex));
340 a3=ES_Data[Z]->at(4*i+2+300+181*4*(energyindex));
341 a4=ES_Data[Z]->at(4*i+3+300+181*4*(energyindex));
342 distribution[i]=a1*a1+a2*a2+a3*a3+a4*a4;
343 normdist += distribution[i];
344 }
345
346 //Create the cummulative distribution function (cdf)
347 for (G4int i =0;i<=180;++i)
348 pdf[i]=distribution[i]/normdist;
349 cdf[0]=0;
350 G4double cdfsum =0;
351 for (G4int i=0; i<=180;++i)
352 {
353 cdfsum=cdfsum+pdf[i];
354 cdf[i]=cdfsum;
355 }
356 //Sampling the polar angle by inverse transform uing cdf.
357 G4double r = G4UniformRand();
358 G4double *cdfptr=lower_bound(cdf,cdf+181,r);
359 G4int cdfindex = (G4int)(cdfptr-cdf-1);
360 G4double cdfinv = (r-cdf[cdfindex])/(cdf[cdfindex+1]-cdf[cdfindex]);
361 G4double theta = (cdfindex+cdfinv)/180.;
362 //polar is now ready
363 theta = theta*CLHEP::pi;
364
365
366 /* Alternative sampling using CLHEP functions
367 CLHEP::RandGeneral GenDistTheta(distribution,181);
368 G4double theta = CLHEP::pi*GenDistTheta.shoot();
369 theta =theta*CLHEP::pi; //polar is now ready
370 */
371
372 //Azimuth is uniformally distributed
373 G4double phi = CLHEP::twopi*G4UniformRand();
374
375 G4ThreeVector finaldirection(sin(theta)*cos(phi), sin(theta)*sin(phi), cos(theta));
376 finaldirection.rotateUz(aDynamicGamma->GetMomentumDirection());
377 //Sampling the Final State
378 fParticleChange->ProposeMomentumDirection(finaldirection);
379 fParticleChange->SetProposedKineticEnergy(photonEnergy0);
380}
G4ThreeVector
CLHEP::Hep3Vector G4ThreeVector
Definition G4ThreeVector.hh:36
fStopAndKill
@ fStopAndKill
Definition G4TrackStatus.hh:46
G4UniformRand
#define G4UniformRand()
Definition Randomize.hh:52
CLHEP::Hep3Vector::z
double z() const
CLHEP::Hep3Vector::x
double x() const
CLHEP::Hep3Vector::y
double y() const
G4DynamicParticle::GetMomentumDirection
const G4ThreeVector & GetMomentumDirection() const
G4DynamicParticle::GetDefinition
G4ParticleDefinition * GetDefinition() const
G4DynamicParticle::GetKineticEnergy
G4double GetKineticEnergy() const
G4DynamicParticle::GetPolarization
const G4ThreeVector & GetPolarization() const
G4Element::GetZ
G4double GetZ() const
Definition G4Element.hh:119
G4VEmModel::SelectRandomAtom
const G4Element * SelectRandomAtom(const G4MaterialCutsCouple *, const G4ParticleDefinition *, G4double kineticEnergy, G4double cutEnergy=0.0, G4double maxEnergy=DBL_MAX)
Definition G4VEmModel.hh:560

◆ SetDebugVerbosity()

void G4JAEAElasticScatteringModel::SetDebugVerbosity ( G4int val)
inline

Definition at line 79 of file G4JAEAElasticScatteringModel.hh.

79{verboseLevel = val;};

◆ SetLowEnergyThreshold()

void G4JAEAElasticScatteringModel::SetLowEnergyThreshold ( G4double val)
inline

Definition at line 78 of file G4JAEAElasticScatteringModel.hh.

78{lowEnergyLimit = val;};
The documentation for this class was generated from the following files: