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Public Member Functions | Protected Attributes
G4DNAScreenedRutherfordElasticModel Class Reference

#include <G4DNAScreenedRutherfordElasticModel.hh>

Inheritance diagram for G4DNAScreenedRutherfordElasticModel:
G4VEmModel

Public Member Functions

 G4DNAScreenedRutherfordElasticModel (const G4ParticleDefinition *p=0, const G4String &nam="DNAScreenedRutherfordElasticModel")
 
virtual ~G4DNAScreenedRutherfordElasticModel ()
 
virtual void Initialise (const G4ParticleDefinition *, const G4DataVector &)
 
virtual G4double CrossSectionPerVolume (const G4Material *material, const G4ParticleDefinition *p, G4double ekin, G4double emin, G4double emax)
 
virtual void SampleSecondaries (std::vector< G4DynamicParticle * > *, const G4MaterialCutsCouple *, const G4DynamicParticle *, G4double tmin, G4double maxEnergy)
 
void SetKillBelowThreshold (G4double threshold)
 
G4double GetKillBelowThreshold ()
 
- 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 ComputeCrossSectionPerAtom (const G4ParticleDefinition *, G4double kinEnergy, G4double Z, G4double A=0., 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 * fParticleChangeForGamma
 
- 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 39 of file G4DNAScreenedRutherfordElasticModel.hh.

Constructor & Destructor Documentation

G4DNAScreenedRutherfordElasticModel::G4DNAScreenedRutherfordElasticModel ( const G4ParticleDefinition *  p = 0,
const G4String &  nam = "DNAScreenedRutherfordElasticModel" 
)

Definition at line 41 of file G4DNAScreenedRutherfordElasticModel.cc.

References python.hepunit::eV, G4cout, G4endl, and python.hepunit::MeV.

42  :G4VEmModel(nam),isInitialised(false)
43 {
44  // nistwater = G4NistManager::Instance()->FindOrBuildMaterial("G4_WATER");
45  fpWaterDensity = 0;
46 
47  killBelowEnergy = 9*eV;
48  lowEnergyLimit = 0 * eV;
49  intermediateEnergyLimit = 200 * eV; // Switch between two final state models
50  highEnergyLimit = 1. * MeV;
51  SetLowEnergyLimit(lowEnergyLimit);
52  SetHighEnergyLimit(highEnergyLimit);
53 
54  verboseLevel= 0;
55  // Verbosity scale:
56  // 0 = nothing
57  // 1 = warning for energy non-conservation
58  // 2 = details of energy budget
59  // 3 = calculation of cross sections, file openings, sampling of atoms
60  // 4 = entering in methods
61 
62  if( verboseLevel>0 )
63  {
64  G4cout << "Screened Rutherford Elastic model is constructed " << G4endl
65  << "Energy range: "
66  << lowEnergyLimit / eV << " eV - "
67  << highEnergyLimit / MeV << " MeV"
68  << G4endl;
69  }
70  fParticleChangeForGamma = 0;
71 }
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
G4VEmModel::SetLowEnergyLimit
void SetLowEnergyLimit(G4double)
Definition: G4VEmModel.hh:690
G4DNAScreenedRutherfordElasticModel::~G4DNAScreenedRutherfordElasticModel ( )
virtual

Definition at line 75 of file G4DNAScreenedRutherfordElasticModel.cc.

76 {}

Member Function Documentation

G4double G4DNAScreenedRutherfordElasticModel::CrossSectionPerVolume ( const G4Material *  material,
const G4ParticleDefinition *  p,
G4double  ekin,
G4double  emin,
G4double  emax 
)
virtual

Reimplemented from G4VEmModel.

Definition at line 156 of file G4DNAScreenedRutherfordElasticModel.cc.

References python.hepunit::cm, DBL_MAX, python.hepunit::eV, G4cout, G4endl, G4Material::GetAtomicNumDensityVector(), G4Material::GetIndex(), G4ParticleDefinition::GetParticleName(), n, python.hepunit::pi, and z.

161 {
162  if (verboseLevel > 3)
163  G4cout << "Calling CrossSectionPerVolume() of G4DNAScreenedRutherfordElasticModel" << G4endl;
164 
165  // Calculate total cross section for model
166 
167  G4double sigma=0;
168 
169  G4double waterDensity = (*fpWaterDensity)[material->GetIndex()];
170 
171  if(waterDensity!= 0.0)
172  // if (material == nistwater || material->GetBaseMaterial() == nistwater)
173  {
174 
175  if (ekin < highEnergyLimit)
176  {
177 
178  if (ekin < killBelowEnergy) return DBL_MAX;
179 
180  G4double z = 10.;
181  G4double n = ScreeningFactor(ekin,z);
182  G4double crossSection = RutherfordCrossSection(ekin, z);
183  sigma = pi * crossSection / (n * (n + 1.));
184  }
185 
186  if (verboseLevel > 2)
187  {
188  G4cout << "__________________________________" << G4endl;
189  G4cout << "°°° G4DNAScreenedRutherfordElasticModel - XS INFO START" << G4endl;
190  G4cout << "°°° Kinetic energy(eV)=" << ekin/eV << " particle : " << particleDefinition->GetParticleName() << G4endl;
191  G4cout << "°°° Cross section per water molecule (cm^2)=" << sigma/cm/cm << G4endl;
192  G4cout << "°°° Cross section per water molecule (cm^-1)=" << sigma*waterDensity/(1./cm) << G4endl;
193  // G4cout << " - Cross section per water molecule (cm^-1)=" << sigma*material->GetAtomicNumDensityVector()[1]/(1./cm) << G4endl;
194  G4cout << "°°° G4DNAScreenedRutherfordElasticModel - XS INFO END" << G4endl;
195  }
196 
197  }
198 
199  return sigma*material->GetAtomicNumDensityVector()[1];
200 }
z
G4double z
Definition: TRTMaterials.hh:39
G4Material::GetIndex
size_t GetIndex() const
Definition: G4Material.hh:260
G4cout
G4GLOB_DLL std::ostream G4cout
n
const G4int n
Definition: G4UrQMD1_3Interface.hh:144
G4Material::GetAtomicNumDensityVector
const G4double * GetAtomicNumDensityVector() const
Definition: G4Material.hh:214
G4endl
#define G4endl
Definition: G4ios.hh:61
G4double
double G4double
Definition: G4Types.hh:76
DBL_MAX
#define DBL_MAX
Definition: templates.hh:83
G4double G4DNAScreenedRutherfordElasticModel::GetKillBelowThreshold ( )
inline

Definition at line 64 of file G4DNAScreenedRutherfordElasticModel.hh.

64 { return killBelowEnergy; }
void G4DNAScreenedRutherfordElasticModel::Initialise ( const G4ParticleDefinition *  ,
const G4DataVector &   
)
virtual

Implements G4VEmModel.

Definition at line 80 of file G4DNAScreenedRutherfordElasticModel.cc.

References python.hepunit::eV, G4cout, G4endl, G4Material::GetMaterial(), G4DNAMolecularMaterial::GetNumMolPerVolTableFor(), G4DNAMolecularMaterial::Instance(), and python.hepunit::MeV.

82 {
83 
84  if (verboseLevel > 3)
85  G4cout << "Calling G4DNAScreenedRutherfordElasticModel::Initialise()" << G4endl;
86 
87  // Energy limits
88 
89  if (LowEnergyLimit() < lowEnergyLimit)
90  {
91  G4cout << "G4DNAScreenedRutherfordElasticModel: low energy limit increased from " <<
92  LowEnergyLimit()/eV << " eV to " << lowEnergyLimit/eV << " eV" << G4endl;
93  SetLowEnergyLimit(lowEnergyLimit);
94  }
95 
96  if (HighEnergyLimit() > highEnergyLimit)
97  {
98  G4cout << "G4DNAScreenedRutherfordElasticModel: high energy limit decreased from " <<
99  HighEnergyLimit()/MeV << " MeV to " << highEnergyLimit/MeV << " MeV" << G4endl;
100  SetHighEnergyLimit(highEnergyLimit);
101  }
102 
103  // Constants for final stae by Brenner & Zaider
104 
105  betaCoeff.push_back(7.51525);
106  betaCoeff.push_back(-0.41912);
107  betaCoeff.push_back(7.2017E-3);
108  betaCoeff.push_back(-4.646E-5);
109  betaCoeff.push_back(1.02897E-7);
110 
111  deltaCoeff.push_back(2.9612);
112  deltaCoeff.push_back(-0.26376);
113  deltaCoeff.push_back(4.307E-3);
114  deltaCoeff.push_back(-2.6895E-5);
115  deltaCoeff.push_back(5.83505E-8);
116 
117  gamma035_10Coeff.push_back(-1.7013);
118  gamma035_10Coeff.push_back(-1.48284);
119  gamma035_10Coeff.push_back(0.6331);
120  gamma035_10Coeff.push_back(-0.10911);
121  gamma035_10Coeff.push_back(8.358E-3);
122  gamma035_10Coeff.push_back(-2.388E-4);
123 
124  gamma10_100Coeff.push_back(-3.32517);
125  gamma10_100Coeff.push_back(0.10996);
126  gamma10_100Coeff.push_back(-4.5255E-3);
127  gamma10_100Coeff.push_back(5.8372E-5);
128  gamma10_100Coeff.push_back(-2.4659E-7);
129 
130  gamma100_200Coeff.push_back(2.4775E-2);
131  gamma100_200Coeff.push_back(-2.96264E-5);
132  gamma100_200Coeff.push_back(-1.20655E-7);
133 
134  //
135 
136  if( verboseLevel>0 )
137  {
138  G4cout << "Screened Rutherford elastic model is initialized " << G4endl
139  << "Energy range: "
140  << LowEnergyLimit() / eV << " eV - "
141  << HighEnergyLimit() / MeV << " MeV"
142  << G4endl;
143  }
144 
145  // Initialize water density pointer
146  fpWaterDensity = G4DNAMolecularMaterial::Instance()->GetNumMolPerVolTableFor(G4Material::GetMaterial("G4_WATER"));
147 
148  if (isInitialised) { return; }
149  fParticleChangeForGamma = GetParticleChangeForGamma();
150  isInitialised = true;
151 
152 }
G4VEmModel::LowEnergyLimit
G4double LowEnergyLimit() const
Definition: G4VEmModel.hh:599
G4VEmModel::HighEnergyLimit
G4double HighEnergyLimit() const
Definition: G4VEmModel.hh:592
G4Material::GetMaterial
static G4Material * GetMaterial(const G4String &name, G4bool warning=true)
Definition: G4Material.cc:578
G4VEmModel::SetHighEnergyLimit
void SetHighEnergyLimit(G4double)
Definition: G4VEmModel.hh:683
G4cout
G4GLOB_DLL std::ostream G4cout
G4DNAMolecularMaterial::GetNumMolPerVolTableFor
const std::vector< double > * GetNumMolPerVolTableFor(const G4Material *) const
Definition: G4DNAMolecularMaterial.cc:381
G4DNAMolecularMaterial::Instance
static G4DNAMolecularMaterial * Instance()
Definition: G4DNAMolecularMaterial.cc:68
G4endl
#define G4endl
Definition: G4ios.hh:61
G4VEmModel::SetLowEnergyLimit
void SetLowEnergyLimit(G4double)
Definition: G4VEmModel.hh:690
G4VEmModel::GetParticleChangeForGamma
G4ParticleChangeForGamma * GetParticleChangeForGamma()
Definition: G4VEmModel.cc:121
void G4DNAScreenedRutherfordElasticModel::SampleSecondaries ( std::vector< G4DynamicParticle * > *  ,
const G4MaterialCutsCouple *  ,
const G4DynamicParticle *  aDynamicElectron,
G4double  tmin,
G4double  maxEnergy 
)
virtual

Implements G4VEmModel.

Definition at line 255 of file G4DNAScreenedRutherfordElasticModel.cc.

References CLHEP::Hep3Vector::cross(), fStopAndKill, G4cout, G4endl, G4UniformRand, G4DynamicParticle::GetKineticEnergy(), G4DynamicParticle::GetMomentumDirection(), CLHEP::Hep3Vector::orthogonal(), python.hepunit::pi, and CLHEP::Hep3Vector::unit().

260 {
261 
262  if (verboseLevel > 3)
263  G4cout << "Calling SampleSecondaries() of G4DNAScreenedRutherfordElasticModel" << G4endl;
264 
265  G4double electronEnergy0 = aDynamicElectron->GetKineticEnergy();
266 
267  if (electronEnergy0 < killBelowEnergy)
268  {
269  fParticleChangeForGamma->SetProposedKineticEnergy(0.);
270  fParticleChangeForGamma->ProposeTrackStatus(fStopAndKill);
271  fParticleChangeForGamma->ProposeLocalEnergyDeposit(electronEnergy0);
272  return ;
273  }
274 
275  G4double cosTheta = 0.;
276 
277  if (electronEnergy0>= killBelowEnergy && electronEnergy0 < highEnergyLimit)
278  {
279  if (electronEnergy0<intermediateEnergyLimit)
280  {
281  if (verboseLevel > 3) G4cout << "---> Using Brenner & Zaider model" << G4endl;
282  cosTheta = BrennerZaiderRandomizeCosTheta(electronEnergy0);
283  }
284 
285  if (electronEnergy0>=intermediateEnergyLimit)
286  {
287  if (verboseLevel > 3) G4cout << "---> Using Screened Rutherford model" << G4endl;
288  G4double z = 10.;
289  cosTheta = ScreenedRutherfordRandomizeCosTheta(electronEnergy0,z);
290  }
291 
292  G4double phi = 2. * pi * G4UniformRand();
293 
294  G4ThreeVector zVers = aDynamicElectron->GetMomentumDirection();
295  G4ThreeVector xVers = zVers.orthogonal();
296  G4ThreeVector yVers = zVers.cross(xVers);
297 
298  G4double xDir = std::sqrt(1. - cosTheta*cosTheta);
299  G4double yDir = xDir;
300  xDir *= std::cos(phi);
301  yDir *= std::sin(phi);
302 
303  G4ThreeVector zPrimeVers((xDir*xVers + yDir*yVers + cosTheta*zVers));
304 
305  fParticleChangeForGamma->ProposeMomentumDirection(zPrimeVers.unit()) ;
306 
307  fParticleChangeForGamma->SetProposedKineticEnergy(electronEnergy0);
308  }
309 
310 }
G4DynamicParticle::GetKineticEnergy
G4double GetKineticEnergy() const
z
G4double z
Definition: TRTMaterials.hh:39
G4ParticleChangeForGamma::ProposeMomentumDirection
void ProposeMomentumDirection(G4double Px, G4double Py, G4double Pz)
Definition: G4ParticleChangeForGamma.hh:147
G4VParticleChange::ProposeLocalEnergyDeposit
void ProposeLocalEnergyDeposit(G4double anEnergyPart)
G4UniformRand
#define G4UniformRand()
Definition: Randomize.hh:87
G4cout
G4GLOB_DLL std::ostream G4cout
G4DynamicParticle::GetMomentumDirection
const G4ThreeVector & GetMomentumDirection() const
CLHEP::Hep3Vector::orthogonal
Hep3Vector orthogonal() const
fStopAndKill
Definition: G4TrackStatus.hh:56
G4ParticleChangeForGamma::SetProposedKineticEnergy
void SetProposedKineticEnergy(G4double proposedKinEnergy)
Definition: G4ParticleChangeForGamma.hh:129
G4endl
#define G4endl
Definition: G4ios.hh:61
CLHEP::Hep3Vector::cross
Hep3Vector cross(const Hep3Vector &) const
G4double
double G4double
Definition: G4Types.hh:76
G4VParticleChange::ProposeTrackStatus
void ProposeTrackStatus(G4TrackStatus status)
void G4DNAScreenedRutherfordElasticModel::SetKillBelowThreshold ( G4double  threshold)
inline

Definition at line 108 of file G4DNAScreenedRutherfordElasticModel.hh.

References G4Exception(), and JustWarning.

109 {
110  killBelowEnergy = threshold;
111  if (threshold < 9*CLHEP::eV)
112  G4Exception ("*** WARNING : the G4DNAScreenedRutherfordElasticModel class is not validated below 9 eV !","",JustWarning,"") ;
113 }
JustWarning
Definition: G4ExceptionSeverity.hh:64
G4Exception
void G4Exception(const char *originOfException, const char *exceptionCode, G4ExceptionSeverity severity, const char *comments)
Definition: G4Exception.cc:41

Field Documentation

G4ParticleChangeForGamma* G4DNAScreenedRutherfordElasticModel::fParticleChangeForGamma
protected

Definition at line 68 of file G4DNAScreenedRutherfordElasticModel.hh.

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