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25 // 25 //
>> 26 // $Id$
26 // 27 //
27 // ------------------------------------------- 28 // -------------------------------------------------------------------
28 // 29 //
29 // GEANT4 Class header file 30 // GEANT4 Class header file
30 // 31 //
31 // 32 //
32 // File name: G4ICRU73QOModel 33 // File name: G4ICRU73QOModel
33 // 34 //
34 // Author: Alexander Bagulya 35 // Author: Alexander Bagulya
35 // 36 //
36 // Creation date: 21.05.2010 37 // Creation date: 21.05.2010
37 // 38 //
38 // Modifications: 39 // Modifications:
39 // 40 //
40 // 41 //
41 // Class Description: 42 // Class Description:
42 // 43 //
43 // Quantum Harmonic Oscillator Model for energ 44 // Quantum Harmonic Oscillator Model for energy loss using atomic shell
44 // structure of atoms taking into account Q^2 45 // structure of atoms taking into account Q^2 (main for projectile charge Q),
45 // Q^3 and Q^4 terms for computation of energy 46 // Q^3 and Q^4 terms for computation of energy loss due to binary collisions.
46 // Can be applied on heavy negatively charged 47 // Can be applied on heavy negatively charged particles for the energy interval
47 // 10 keV - 10 MeV scaled to the proton mass. 48 // 10 keV - 10 MeV scaled to the proton mass.
48 // 49 //
49 // Used data and formula of 50 // Used data and formula of
50 // 1. G4QAOLowEnergyLoss class, S.Chauvie, P.N 51 // 1. G4QAOLowEnergyLoss class, S.Chauvie, P.Nieminen, M.G.Pia. IEEE Trans.
51 // Nucl. Sci. 54 (2007) 578. 52 // Nucl. Sci. 54 (2007) 578.
52 // 2. ShellStrength and ShellEnergy from ICRU' 53 // 2. ShellStrength and ShellEnergy from ICRU'73 Report 2005,
53 // 3. Data for Ta (Z=73) from P.Sigmund, A.Shi 54 // 3. Data for Ta (Z=73) from P.Sigmund, A.Shinner. Eur. Phys. J. D15 (2001)
54 // 165-172 55 // 165-172
55 // 56 //
56 // ------------------------------------------- 57 // -------------------------------------------------------------------
57 // 58 //
58 59
59 #ifndef G4ICRU73QOModel_h 60 #ifndef G4ICRU73QOModel_h
60 #define G4ICRU73QOModel_h 1 61 #define G4ICRU73QOModel_h 1
61 62
62 #include <CLHEP/Units/PhysicalConstants.h> 63 #include <CLHEP/Units/PhysicalConstants.h>
63 64
64 #include "G4VEmModel.hh" 65 #include "G4VEmModel.hh"
65 #include "G4AtomicShells.hh" 66 #include "G4AtomicShells.hh"
66 #include "G4DensityEffectData.hh" 67 #include "G4DensityEffectData.hh"
67 68
68 class G4ParticleChangeForLoss; 69 class G4ParticleChangeForLoss;
69 70
70 class G4ICRU73QOModel : public G4VEmModel 71 class G4ICRU73QOModel : public G4VEmModel
71 { 72 {
72 73
73 public: 74 public:
74 75
75 explicit G4ICRU73QOModel(const G4ParticleDef << 76 G4ICRU73QOModel(const G4ParticleDefinition* p = 0,
76 const G4String& nam << 77 const G4String& nam = "ICRU73QO");
77 78
78 ~G4ICRU73QOModel() = default; << 79 virtual ~G4ICRU73QOModel();
79 80
80 void Initialise(const G4ParticleDefinition*, << 81 virtual void Initialise(const G4ParticleDefinition*, const G4DataVector&);
81 82
82 G4double ComputeCrossSectionPerElectron( << 83 virtual G4double ComputeCrossSectionPerElectron(
83 const G4Parti << 84 const G4ParticleDefinition*,
84 G4double kine << 85 G4double kineticEnergy,
85 G4double cutE << 86 G4double cutEnergy,
86 G4double maxE << 87 G4double maxEnergy);
87 << 88
88 G4double ComputeCrossSectionPerAtom( << 89 virtual G4double ComputeCrossSectionPerAtom(
89 const G4Parti << 90 const G4ParticleDefinition*,
90 G4double kine << 91 G4double kineticEnergy,
91 G4double Z, G << 92 G4double Z, G4double A,
92 G4double cutE << 93 G4double cutEnergy,
93 G4double maxE << 94 G4double maxEnergy);
94 << 95
95 G4double CrossSectionPerVolume(const G4Mater << 96 virtual G4double CrossSectionPerVolume(const G4Material*,
96 const G4Parti << 97 const G4ParticleDefinition*,
97 G4double kine << 98 G4double kineticEnergy,
98 G4double cutE << 99 G4double cutEnergy,
99 G4double maxE << 100 G4double maxEnergy);
100 << 101
101 G4double ComputeDEDXPerVolume(const G4Materi << 102 virtual G4double ComputeDEDXPerVolume(const G4Material*,
102 const G4ParticleDefinition*, << 103 const G4ParticleDefinition*,
103 G4double kineticEnergy, << 104 G4double kineticEnergy,
104 G4double) override; << 105 G4double);
105 << 106
106 void SampleSecondaries(std::vector<G4Dynamic << 107 virtual void SampleSecondaries(std::vector<G4DynamicParticle*>*,
107 const G4MaterialCutsCouple*, << 108 const G4MaterialCutsCouple*,
108 const G4DynamicParticle*, << 109 const G4DynamicParticle*,
109 G4double tmin, << 110 G4double tmin,
110 G4double maxEnergy) override; << 111 G4double maxEnergy);
111 112
112 // add correction to energy loss and compute 113 // add correction to energy loss and compute non-ionizing energy loss
113 void CorrectionsAlongStep(const G4MaterialCu << 114 virtual void CorrectionsAlongStep(const G4MaterialCutsCouple*,
114 const G4DynamicParticle*, << 115 const G4DynamicParticle*,
115 const G4double& length, << 116 G4double& eloss,
116 G4double& eloss) override; << 117 G4double& niel,
>> 118 G4double length);
117 119
118 // hide assignment operator <<
119 G4ICRU73QOModel & operator=(const G4ICRU73Q <<
120 G4ICRU73QOModel(const G4ICRU73QOModel&) = d <<
121 <<
122 protected: 120 protected:
123 121
124 G4double MaxSecondaryEnergy(const G4Particle << 122 virtual G4double MaxSecondaryEnergy(const G4ParticleDefinition*,
125 G4double kinEnergy) final; << 123 G4double kinEnergy);
126 124
127 private: 125 private:
128 126
129 inline void SetParticle(const G4ParticleDefi 127 inline void SetParticle(const G4ParticleDefinition* p);
130 inline void SetLowestKinEnergy(G4double val) << 128 inline void SetLowestKinEnergy(const G4double val);
131 129
132 G4double DEDX(const G4Material* material, G4 130 G4double DEDX(const G4Material* material, G4double kineticEnergy);
133 131
134 G4double DEDXPerElement(G4int Z, G4double ki 132 G4double DEDXPerElement(G4int Z, G4double kineticEnergy);
135 133
136 // get number of shell, energy and oscillato << 134 // hide assignment operator
137 G4int GetNumberOfShells(G4int Z) const; << 135 G4ICRU73QOModel & operator=(const G4ICRU73QOModel &right);
138 << 136 G4ICRU73QOModel(const G4ICRU73QOModel&);
139 G4double GetShellEnergy(G4int Z, G4int nbOfT <<
140 G4double GetOscillatorEnergy(G4int Z, G4int <<
141 G4double GetShellStrength(G4int Z, G4int nbO <<
142 137
143 // calculate stopping number for L's term <<
144 G4double GetL0(G4double normEnergy) const; <<
145 // terms in Z^2 <<
146 G4double GetL1(G4double normEnergy) const; <<
147 // terms in Z^3 <<
148 G4double GetL2(G4double normEnergy) const; <<
149 // terms in Z^4 <<
150 <<
151 const G4ParticleDefinition* particle; 138 const G4ParticleDefinition* particle;
152 G4ParticleDefinition* theElectron; 139 G4ParticleDefinition* theElectron;
153 G4ParticleChangeForLoss* fParticleChange; 140 G4ParticleChangeForLoss* fParticleChange;
154 G4DensityEffectData* denEffData; 141 G4DensityEffectData* denEffData;
155 142
156 G4double mass; 143 G4double mass;
157 G4double charge; 144 G4double charge;
158 G4double chargeSquare; 145 G4double chargeSquare;
159 G4double massRate; 146 G4double massRate;
160 G4double ratio; 147 G4double ratio;
161 G4double lowestKinEnergy; 148 G4double lowestKinEnergy;
162 149
163 G4bool isInitialised; 150 G4bool isInitialised;
164 151
>> 152 // get number of shell, energy and oscillator strenghts for material
>> 153 G4int GetNumberOfShells(G4int Z) const;
>> 154
>> 155 G4double GetShellEnergy(G4int Z, G4int nbOfTheShell) const;
>> 156 G4double GetOscillatorEnergy(G4int Z, G4int nbOfTheShell) const;
>> 157 G4double GetShellStrength(G4int Z, G4int nbOfTheShell) const;
>> 158
>> 159 // calculate stopping number for L's term
>> 160 G4double GetL0(G4double normEnergy) const;
>> 161 // terms in Z^2
>> 162 G4double GetL1(G4double normEnergy) const;
>> 163 // terms in Z^3
>> 164 G4double GetL2(G4double normEnergy) const;
>> 165 // terms in Z^4
>> 166
>> 167
165 // Z of element at now avaliable for the mod 168 // Z of element at now avaliable for the model
166 static const G4int NQOELEM = 26; 169 static const G4int NQOELEM = 26;
167 static const G4int NQODATA = 130; 170 static const G4int NQODATA = 130;
168 static const G4int ZElementAvailable[NQOELEM 171 static const G4int ZElementAvailable[NQOELEM];
169 172
170 // number, energy and oscillator strengths << 173 // number, energy and oscillator strenghts
171 // for an harmonic oscillator model of mater 174 // for an harmonic oscillator model of material
172 static const G4int startElemIndex[NQOELEM]; 175 static const G4int startElemIndex[NQOELEM];
173 static const G4int nbofShellsForElement[NQOE 176 static const G4int nbofShellsForElement[NQOELEM];
174 static const G4double ShellEnergy[NQODATA]; 177 static const G4double ShellEnergy[NQODATA];
175 static const G4double SubShellOccupation[NQO 178 static const G4double SubShellOccupation[NQODATA]; // Z * ShellStrength
176 179
177 G4int indexZ[100]; 180 G4int indexZ[100];
178 181
179 // variable for calculation of stopping num 182 // variable for calculation of stopping number of L's term
180 static const G4double L0[67][2]; 183 static const G4double L0[67][2];
181 static const G4double L1[22][2]; 184 static const G4double L1[22][2];
182 static const G4double L2[14][2]; 185 static const G4double L2[14][2];
183 186
184 G4int sizeL0; 187 G4int sizeL0;
185 G4int sizeL1; 188 G4int sizeL1;
186 G4int sizeL2; 189 G4int sizeL2;
187 190
188 static const G4double factorBethe[99]; 191 static const G4double factorBethe[99];
189 192
190 }; 193 };
191 194
192 //....oooOO0OOooo........oooOO0OOooo........oo 195 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
193 196
194 inline void G4ICRU73QOModel::SetParticle(const 197 inline void G4ICRU73QOModel::SetParticle(const G4ParticleDefinition* p)
195 { 198 {
196 particle = p; 199 particle = p;
197 mass = particle->GetPDGMass(); 200 mass = particle->GetPDGMass();
198 charge = particle->GetPDGCharge()/CLHEP::epl 201 charge = particle->GetPDGCharge()/CLHEP::eplus;
199 chargeSquare = charge*charge; 202 chargeSquare = charge*charge;
200 massRate = mass/CLHEP::proton_mass_c2; 203 massRate = mass/CLHEP::proton_mass_c2;
201 ratio = CLHEP::electron_mass_c2/mass; 204 ratio = CLHEP::electron_mass_c2/mass;
202 } 205 }
203 206
204 //....oooOO0OOooo........oooOO0OOooo........oo 207 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
205 208
206 inline void G4ICRU73QOModel::SetLowestKinEnerg << 209 inline G4int G4ICRU73QOModel::GetNumberOfShells(G4int Z) const
>> 210 {
>> 211 G4int nShell = 0;
>> 212
>> 213 if(indexZ[Z] >= 0) { nShell = nbofShellsForElement[indexZ[Z]];
>> 214 } else { nShell = G4AtomicShells::GetNumberOfShells(Z); }
>> 215
>> 216 return nShell;
>> 217 }
>> 218
>> 219 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
>> 220
>> 221 inline G4double
>> 222 G4ICRU73QOModel::GetShellEnergy(G4int Z, G4int nbOfTheShell) const
>> 223 {
>> 224 G4double shellEnergy = 0.;
>> 225
>> 226 G4int idx = indexZ[Z];
>> 227
>> 228 if(idx >= 0) { shellEnergy = ShellEnergy[startElemIndex[idx] + nbOfTheShell]*CLHEP::eV;
>> 229 } else { shellEnergy = GetOscillatorEnergy(Z, nbOfTheShell); }
>> 230
>> 231 return shellEnergy;
>> 232 }
>> 233
>> 234 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
>> 235
>> 236 inline G4double
>> 237 G4ICRU73QOModel::GetShellStrength(G4int Z, G4int nbOfTheShell) const
>> 238 {
>> 239 G4double shellStrength = 0.;
>> 240
>> 241 G4int idx = indexZ[Z];
>> 242
>> 243 if(idx >= 0) { shellStrength = SubShellOccupation[startElemIndex[idx] + nbOfTheShell] / Z;
>> 244 } else { shellStrength = G4double(G4AtomicShells::GetNumberOfElectrons(Z,nbOfTheShell))/Z; }
>> 245
>> 246 return shellStrength;
>> 247 }
>> 248
>> 249 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
>> 250
>> 251 inline void G4ICRU73QOModel::SetLowestKinEnergy(const G4double val)
207 { 252 {
208 lowestKinEnergy = val; 253 lowestKinEnergy = val;
209 } 254 }
210 255
211 #endif 256 #endif
212 257