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Public Member Functions | Protected Attributes
G4LivermoreComptonModifiedModel Class Reference

#include <G4LivermoreComptonModifiedModel.hh>

Inheritance diagram for G4LivermoreComptonModifiedModel:
G4VEmModel

Public Member Functions

 G4LivermoreComptonModifiedModel (const G4ParticleDefinition *p=0, const G4String &nam="LivermoreModifiedCompton")
 
virtual ~G4LivermoreComptonModifiedModel ()
 
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 48 of file G4LivermoreComptonModifiedModel.hh.

Constructor & Destructor Documentation

G4LivermoreComptonModifiedModel::G4LivermoreComptonModifiedModel ( const G4ParticleDefinition *  p = 0,
const G4String &  nam = "LivermoreModifiedCompton" 
)

Definition at line 63 of file G4LivermoreComptonModifiedModel.cc.

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

65  :G4VEmModel(nam),fParticleChange(0),isInitialised(false),
66  scatterFunctionData(0),
67  crossSectionHandler(0),fAtomDeexcitation(0)
68 {
69  lowEnergyLimit = 250 * eV;
70  highEnergyLimit = 100 * GeV;
71 
72  verboseLevel=0 ;
73  // Verbosity scale:
74  // 0 = nothing
75  // 1 = warning for energy non-conservation
76  // 2 = details of energy budget
77  // 3 = calculation of cross sections, file openings, sampling of atoms
78  // 4 = entering in methods
79 
80  if( verboseLevel>0 ) {
81  G4cout << "Livermore Modified Compton model is constructed " << G4endl
82  << "Energy range: "
83  << lowEnergyLimit / eV << " eV - "
84  << highEnergyLimit / GeV << " GeV"
85  << G4endl;
86  }
87 
88  //Mark this model as "applicable" for atomic deexcitation
89  SetDeexcitationFlag(true);
90 
91 }
G4VEmModel::G4VEmModel
G4VEmModel(const G4String &nam)
Definition: G4VEmModel.cc:65
G4cout
G4GLOB_DLL std::ostream G4cout
G4endl
#define G4endl
Definition: G4ios.hh:61
G4VEmModel::SetDeexcitationFlag
void SetDeexcitationFlag(G4bool val)
Definition: G4VEmModel.hh:739
G4LivermoreComptonModifiedModel::~G4LivermoreComptonModifiedModel ( )
virtual

Definition at line 95 of file G4LivermoreComptonModifiedModel.cc.

96 {
97  delete crossSectionHandler;
98  delete scatterFunctionData;
99 }

Member Function Documentation

G4double G4LivermoreComptonModifiedModel::ComputeCrossSectionPerAtom ( const G4ParticleDefinition *  ,
G4double  kinEnergy,
G4double  Z,
G4double  A = 0,
G4double  cut = 0,
G4double  emax = DBL_MAX 
)
virtual

Reimplemented from G4VEmModel.

Definition at line 156 of file G4LivermoreComptonModifiedModel.cc.

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

161 {
162  if (verboseLevel > 3) {
163  G4cout << "Calling ComputeCrossSectionPerAtom() of G4LivermoreComptonModifiedModel" << G4endl;
164  }
165  if (GammaEnergy < lowEnergyLimit || GammaEnergy > highEnergyLimit) { return 0.0; }
166 
167  G4double cs = crossSectionHandler->FindValue(G4int(Z), GammaEnergy);
168  return cs;
169 }
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 G4LivermoreComptonModifiedModel::Initialise ( const G4ParticleDefinition *  particle,
const G4DataVector &  cuts 
)
virtual

Implements G4VEmModel.

Definition at line 103 of file G4LivermoreComptonModifiedModel.cc.

References G4LossTableManager::AtomDeexcitation(), G4VCrossSectionHandler::Clear(), python.hepunit::eV, fParticleChange, G4cout, G4endl, G4VEmModel::GetParticleChangeForGamma(), python.hepunit::GeV, G4VEmModel::HighEnergyLimit(), G4VEmModel::InitialiseElementSelectors(), G4LossTableManager::Instance(), G4ShellData::LoadData(), G4VEMDataSet::LoadData(), G4VCrossSectionHandler::LoadData(), G4VEmModel::LowEnergyLimit(), and G4ShellData::SetOccupancyData().

105 {
106  if (verboseLevel > 2) {
107  G4cout << "Calling G4LivermoreComptonModifiedModel::Initialise()" << G4endl;
108  }
109 
110  if (crossSectionHandler)
111  {
112  crossSectionHandler->Clear();
113  delete crossSectionHandler;
114  }
115  delete scatterFunctionData;
116 
117  // Reading of data files - all materials are read
118  crossSectionHandler = new G4CrossSectionHandler;
119  G4String crossSectionFile = "comp/ce-cs-";
120  crossSectionHandler->LoadData(crossSectionFile);
121 
122  G4VDataSetAlgorithm* scatterInterpolation = new G4LogLogInterpolation;
123  G4String scatterFile = "comp/ce-sf-";
124  scatterFunctionData = new G4CompositeEMDataSet(scatterInterpolation, 1., 1.);
125  scatterFunctionData->LoadData(scatterFile);
126 
127  // For Doppler broadening
128  shellData.SetOccupancyData();
129  G4String file = "/doppler/shell-doppler";
130  shellData.LoadData(file);
131 
132  InitialiseElementSelectors(particle,cuts);
133 
134  if (verboseLevel > 2) {
135  G4cout << "Loaded cross section files for Livermore Modified Compton model" << G4endl;
136  }
137 
138  if(isInitialised) { return; }
139  isInitialised = true;
140 
141  fParticleChange = GetParticleChangeForGamma();
142 
143  fAtomDeexcitation = G4LossTableManager::Instance()->AtomDeexcitation();
144 
145  if( verboseLevel>0 ) {
146  G4cout << "Livermore Compton model is initialized " << G4endl
147  << "Energy range: "
148  << LowEnergyLimit() / eV << " eV - "
149  << HighEnergyLimit() / GeV << " GeV"
150  << G4endl;
151  }
152 }
G4ShellData::SetOccupancyData
void SetOccupancyData()
Definition: G4ShellData.hh:70
G4VEmModel::LowEnergyLimit
G4double LowEnergyLimit() const
Definition: G4VEmModel.hh:599
G4LossTableManager::Instance
static G4LossTableManager * Instance()
Definition: G4LossTableManager.cc:112
G4VEmModel::InitialiseElementSelectors
void InitialiseElementSelectors(const G4ParticleDefinition *, const G4DataVector &)
Definition: G4VEmModel.cc:135
G4VEmModel::HighEnergyLimit
G4double HighEnergyLimit() const
Definition: G4VEmModel.hh:592
G4ShellData::LoadData
void LoadData(const G4String &fileName)
Definition: G4ShellData.cc:234
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
G4LossTableManager::AtomDeexcitation
G4VAtomDeexcitation * AtomDeexcitation()
Definition: G4LossTableManager.cc:1300
G4VEmModel::GetParticleChangeForGamma
G4ParticleChangeForGamma * GetParticleChangeForGamma()
Definition: G4VEmModel.cc:121
void G4LivermoreComptonModifiedModel::SampleSecondaries ( std::vector< G4DynamicParticle * > *  fvect,
const G4MaterialCutsCouple *  couple,
const G4DynamicParticle *  aDynamicGamma,
G4double  tmin,
G4double  maxEnergy 
)
virtual

Implements G4VEmModel.

Definition at line 173 of file G4LivermoreComptonModifiedModel.cc.

References Alpha, G4ShellData::BindingEnergy(), python.hepunit::c_light, G4VAtomDeexcitation::CheckDeexcitationActiveRegion(), python.hepunit::cm, G4Electron::Electron(), python.hepunit::electron_mass_c2, G4VEMDataSet::FindValue(), python.hepunit::fine_structure_const, fParticleChange, fStopAndKill, G4cout, G4endl, G4UniformRand, G4VAtomDeexcitation::GenerateParticles(), G4VAtomDeexcitation::GetAtomicShell(), G4DynamicParticle::GetDefinition(), G4MaterialCutsCouple::GetIndex(), G4DynamicParticle::GetKineticEnergy(), G4MaterialCutsCouple::GetMaterial(), G4DynamicParticle::GetMomentumDirection(), G4Material::GetName(), G4Element::GetZ(), python.hepunit::h_Planck, python.hepunit::MeV, python.hepunit::pi, G4VParticleChange::ProposeLocalEnergyDeposit(), G4ParticleChangeForGamma::ProposeMomentumDirection(), G4VParticleChange::ProposeTrackStatus(), G4DopplerProfile::RandomSelectMomentum(), CLHEP::Hep3Vector::rotateUz(), G4VEmModel::SelectRandomAtom(), G4ShellData::SelectRandomShell(), G4ParticleChangeForGamma::SetProposedKineticEnergy(), python.hepunit::twopi, var(), and test::x.

177 {
178 
179  // The scattered gamma energy is sampled according to Klein - Nishina formula.
180  // then accepted or rejected depending on the Scattering Function multiplied
181  // by factor from Klein - Nishina formula.
182  // Expression of the angular distribution as Klein Nishina
183  // angular and energy distribution and Scattering fuctions is taken from
184  // D. E. Cullen "A simple model of photon transport" Nucl. Instr. Meth.
185  // Phys. Res. B 101 (1995). Method of sampling with form factors is different
186  // data are interpolated while in the article they are fitted.
187  // Reference to the article is from J. Stepanek New Photon, Positron
188  // and Electron Interaction Data for GEANT in Energy Range from 1 eV to 10
189  // TeV (draft).
190  // The random number techniques of Butcher & Messel are used
191  // (Nucl Phys 20(1960),15).
192 
193  G4double photonEnergy0 = aDynamicGamma->GetKineticEnergy();
194 
195  if (verboseLevel > 3) {
196  G4cout << "G4LivermoreComptonModifiedModel::SampleSecondaries() E(MeV)= "
197  << photonEnergy0/MeV << " in " << couple->GetMaterial()->GetName()
198  << G4endl;
199  }
200 
201  // low-energy gamma is absorpted by this process
202  if (photonEnergy0 <= lowEnergyLimit)
203  {
204  fParticleChange->ProposeTrackStatus(fStopAndKill);
205  fParticleChange->SetProposedKineticEnergy(0.);
206  fParticleChange->ProposeLocalEnergyDeposit(photonEnergy0);
207  return ;
208  }
209 
210  G4double e0m = photonEnergy0 / electron_mass_c2 ;
211  G4ParticleMomentum photonDirection0 = aDynamicGamma->GetMomentumDirection();
212 
213  // Select randomly one element in the current material
214  const G4ParticleDefinition* particle = aDynamicGamma->GetDefinition();
215  const G4Element* elm = SelectRandomAtom(couple,particle,photonEnergy0);
216  G4int Z = (G4int)elm->GetZ();
217 
218  G4double epsilon0Local = 1. / (1. + 2. * e0m);
219  G4double epsilon0Sq = epsilon0Local * epsilon0Local;
220  G4double alpha1 = -std::log(epsilon0Local);
221  G4double alpha2 = 0.5 * (1. - epsilon0Sq);
222 
223  G4double wlPhoton = h_Planck*c_light/photonEnergy0;
224 
225  // Sample the energy of the scattered photon
226  G4double epsilon;
227  G4double epsilonSq;
228  G4double oneCosT;
229  G4double sinT2;
230  G4double gReject;
231 
232  do
233  {
234  if ( alpha1/(alpha1+alpha2) > G4UniformRand())
235  {
236  // std::pow(epsilon0Local,G4UniformRand())
237  epsilon = std::exp(-alpha1 * G4UniformRand());
238  epsilonSq = epsilon * epsilon;
239  }
240  else
241  {
242  epsilonSq = epsilon0Sq + (1. - epsilon0Sq) * G4UniformRand();
243  epsilon = std::sqrt(epsilonSq);
244  }
245 
246  oneCosT = (1. - epsilon) / ( epsilon * e0m);
247  sinT2 = oneCosT * (2. - oneCosT);
248  G4double x = std::sqrt(oneCosT/2.) / (wlPhoton/cm);
249  G4double scatteringFunction = scatterFunctionData->FindValue(x,Z-1);
250  gReject = (1. - epsilon * sinT2 / (1. + epsilonSq)) * scatteringFunction;
251 
252  } while(gReject < G4UniformRand()*Z);
253 
254  G4double cosTheta = 1. - oneCosT;
255  G4double sinTheta = std::sqrt (sinT2);
256  G4double phi = twopi * G4UniformRand() ;
257  G4double dirx = sinTheta * std::cos(phi);
258  G4double diry = sinTheta * std::sin(phi);
259  G4double dirz = cosTheta ;
260 
261  // Doppler broadening - Method based on:
262  // Y. Namito, S. Ban and H. Hirayama,
263  // "Implementation of the Doppler Broadening of a Compton-Scattered Photon
264  // into the EGS4 Code", NIM A 349, pp. 489-494, 1994
265 
266  // Maximum number of sampling iterations
267  G4int maxDopplerIterations = 1000;
268  G4double bindingE = 0.;
269  G4double photonEoriginal = epsilon * photonEnergy0;
270  G4double photonE = -1.;
271  G4int iteration = 0;
272  G4double systemE = 0;
273  G4double ePAU = -1;
274  G4int shellIdx = 0;
275  G4double vel_c = 299792458;
276  G4double momentum_au_to_nat = 1.992851740*std::pow(10.,-24.);
277  G4double e_mass_kg = 9.10938188 * std::pow(10.,-31.);
278  G4double eMax = -1;
279  G4double Alpha=0;
280  do
281  {
282  ++iteration;
283  // Select shell based on shell occupancy
284  shellIdx = shellData.SelectRandomShell(Z);
285  bindingE = shellData.BindingEnergy(Z,shellIdx);
286 
287 
288 
289  // Randomly sample bound electron momentum
290  // (memento: the data set is in Atomic Units)
291  G4double pSample = profileData.RandomSelectMomentum(Z,shellIdx);
292  // Rescale from atomic units
293 
294 
295  //Kinetic energy of target electron
296 
297 
298  // Reverse vector projection onto scattering vector
299 
300  do {
301  Alpha = G4UniformRand()*pi/2.0;
302  } while(Alpha >= (pi/2.0));
303 
304  ePAU = pSample / std::cos(Alpha);
305 
306  // Convert to SI and the calculate electron energy in natural units
307 
308  G4double ePSI = ePAU * momentum_au_to_nat;
309  G4double u_temp = sqrt( ((ePSI*ePSI)*(vel_c*vel_c)) / ((e_mass_kg*e_mass_kg)*(vel_c*vel_c)+(ePSI*ePSI)))/vel_c;
310  G4double eEIncident = electron_mass_c2 / sqrt( 1 - (u_temp*u_temp));
311 
312  //Total energy of the system
313  systemE = eEIncident+photonEnergy0;
314 
315  eMax = systemE - bindingE - electron_mass_c2;
316  G4double pDoppler = pSample * fine_structure_const;
317  G4double pDoppler2 = pDoppler * pDoppler;
318  G4double var2 = 1. + oneCosT * e0m;
319  G4double var3 = var2*var2 - pDoppler2;
320  G4double var4 = var2 - pDoppler2 * cosTheta;
321  G4double var = var4*var4 - var3 + pDoppler2 * var3;
322  if (var > 0.)
323  {
324  G4double varSqrt = std::sqrt(var);
325  G4double scale = photonEnergy0 / var3;
326  // Random select either root
327  if (G4UniformRand() < 0.5) { photonE = (var4 - varSqrt) * scale; }
328  else { photonE = (var4 + varSqrt) * scale; }
329  }
330  else
331  {
332  photonE = -1.;
333  }
334  } while ( iteration <= maxDopplerIterations &&
335  (photonE < 0. || photonE > eMax ) );
336 
337  // End of recalculation of photon energy with Doppler broadening
338  // Kinematics of the scattered electron
339  G4double eKineticEnergy = systemE - photonE - bindingE - electron_mass_c2;
340 
341  // protection against negative final energy: no e- is created
342  G4double eDirX = 0.0;
343  G4double eDirY = 0.0;
344  G4double eDirZ = 1.0;
345 
346  if(eKineticEnergy < 0.0) {
347  G4cout << "Error, kinetic energy of electron less than zero" << G4endl;
348  }
349 
350  else{
351  // Estimation of Compton electron polar angle taken from:
352  // The EGSnrc Code System: Monte Carlo Simulation of Electron and Photon Transport
353  // Eqn 2.2.25 Pg 42, NRCC Report PIRS-701
354  G4double E_num = photonEnergy0 - photonE*cosTheta;
355  G4double E_dom = sqrt(photonEnergy0*photonEnergy0 + photonE*photonE -2*photonEnergy0*photonE*cosTheta);
356  G4double cosThetaE = E_num / E_dom;
357  G4double sinThetaE = -sqrt((1. - cosThetaE) * (1. + cosThetaE));
358 
359  eDirX = sinThetaE * std::cos(phi);
360  eDirY = sinThetaE * std::sin(phi);
361  eDirZ = cosThetaE;
362 
363  G4ThreeVector eDirection(eDirX,eDirY,eDirZ);
364  eDirection.rotateUz(photonDirection0);
365  G4DynamicParticle* dp = new G4DynamicParticle (G4Electron::Electron(),
366  eDirection,eKineticEnergy) ;
367  fvect->push_back(dp);
368  }
369 
370 
371  // Revert to original if maximum number of iterations threshold has been reached
372 
373  if (iteration >= maxDopplerIterations)
374  {
375  photonE = photonEoriginal;
376  bindingE = 0.;
377  }
378 
379  // Update G4VParticleChange for the scattered photon
380 
381  G4ThreeVector photonDirection1(dirx,diry,dirz);
382  photonDirection1.rotateUz(photonDirection0);
383  fParticleChange->ProposeMomentumDirection(photonDirection1) ;
384 
385  G4double photonEnergy1 = photonE;
386 
387  if (photonEnergy1 > 0.)
388  {
389  fParticleChange->SetProposedKineticEnergy(photonEnergy1) ;
390 
391  if (iteration < maxDopplerIterations)
392  {
393  G4ThreeVector eDirection(eDirX,eDirY,eDirZ);
394  eDirection.rotateUz(photonDirection0);
395  G4DynamicParticle* dp = new G4DynamicParticle (G4Electron::Electron(),
396  eDirection,eKineticEnergy) ;
397  fvect->push_back(dp);
398  }
399  }
400  else
401  {
402  photonEnergy1 = 0.;
403  fParticleChange->SetProposedKineticEnergy(0.) ;
404  fParticleChange->ProposeTrackStatus(fStopAndKill);
405  }
406 
407  // sample deexcitation
408  //
409  if(fAtomDeexcitation && iteration < maxDopplerIterations) {
410  G4int index = couple->GetIndex();
411  if(fAtomDeexcitation->CheckDeexcitationActiveRegion(index)) {
412  size_t nbefore = fvect->size();
413  G4AtomicShellEnumerator as = G4AtomicShellEnumerator(shellIdx);
414  const G4AtomicShell* shell = fAtomDeexcitation->GetAtomicShell(Z, as);
415  fAtomDeexcitation->GenerateParticles(fvect, shell, Z, index);
416  size_t nafter = fvect->size();
417  if(nafter > nbefore) {
418  for (size_t i=nbefore; i<nafter; ++i) {
419  bindingE -= ((*fvect)[i])->GetKineticEnergy();
420  }
421  }
422  }
423  }
424  if(bindingE < 0.0) { bindingE = 0.0; }
425  fParticleChange->ProposeLocalEnergyDeposit(bindingE);
426 }
G4VEMDataSet::FindValue
virtual G4double FindValue(G4double x, G4int componentId=0) const =0
G4VAtomDeexcitation::CheckDeexcitationActiveRegion
G4bool CheckDeexcitationActiveRegion(G4int coupleIndex)
Definition: G4VAtomDeexcitation.hh:276
var
real *8 function var(A, B, C, D)
Definition: dpm25nuc1.f:4649
G4DynamicParticle::GetKineticEnergy
G4double GetKineticEnergy() const
Alpha
Definition: G4RadioactiveDecayMode.hh:65
python.hepunit.h_Planck
float h_Planck
Definition: hepunit.py:263
G4Material::GetName
const G4String & GetName() const
Definition: G4Material.hh:176
G4Element::GetZ
G4double GetZ() const
Definition: G4Element.hh:131
G4DynamicParticle::GetDefinition
G4ParticleDefinition * GetDefinition() const
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int G4int
Definition: G4Types.hh:78
G4ParticleChangeForGamma::ProposeMomentumDirection
void ProposeMomentumDirection(G4double Px, G4double Py, G4double Pz)
Definition: G4ParticleChangeForGamma.hh:147
G4ShellData::SelectRandomShell
G4int SelectRandomShell(G4int Z) const
Definition: G4ShellData.cc:363
G4VParticleChange::ProposeLocalEnergyDeposit
void ProposeLocalEnergyDeposit(G4double anEnergyPart)
G4VAtomDeexcitation::GetAtomicShell
virtual const G4AtomicShell * GetAtomicShell(G4int Z, G4AtomicShellEnumerator shell)=0
G4UniformRand
#define G4UniformRand()
Definition: Randomize.hh:87
G4cout
G4GLOB_DLL std::ostream G4cout
G4DynamicParticle::GetMomentumDirection
const G4ThreeVector & GetMomentumDirection() const
G4ShellData::BindingEnergy
G4double BindingEnergy(G4int Z, G4int shellIndex) const
Definition: G4ShellData.cc:166
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float electron_mass_c2
Definition: hepunit.py:274
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Definition: G4TrackStatus.hh:56
G4Electron::Electron
static G4Electron * Electron()
Definition: G4Electron.cc:94
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)
G4VAtomDeexcitation::GenerateParticles
void GenerateParticles(std::vector< G4DynamicParticle * > *secVect, const G4AtomicShell *, G4int Z, G4int coupleIndex)
Definition: G4VAtomDeexcitation.hh:289
G4DopplerProfile::RandomSelectMomentum
G4double RandomSelectMomentum(G4int Z, G4int shellIndex) const
Definition: G4DopplerProfile.cc:227
python.hepunit.c_light
float c_light
Definition: hepunit.py:257
G4AtomicShellEnumerator
G4AtomicShellEnumerator
Definition: G4AtomicShellEnumerator.hh:50
G4VEmModel::SelectRandomAtom
const G4Element * SelectRandomAtom(const G4MaterialCutsCouple *, const G4ParticleDefinition *, G4double kineticEnergy, G4double cutEnergy=0.0, G4double maxEnergy=DBL_MAX)
Definition: G4VEmModel.hh:510
G4MaterialCutsCouple::GetMaterial
const G4Material * GetMaterial() const
Definition: G4MaterialCutsCouple.hh:150

Field Documentation

G4ParticleChangeForGamma* G4LivermoreComptonModifiedModel::fParticleChange
protected

Definition at line 75 of file G4LivermoreComptonModifiedModel.hh.

Referenced by Initialise(), and SampleSecondaries().

The documentation for this class was generated from the following files:
Generated on Wed Apr 30 2014 15:56:39 for Geant4.10 by   doxygen 1.8.7