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2 | // ******************************************************************** |
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15 | // * use. Please see the license in the file LICENSE and URL above * |
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24 | // ******************************************************************** |
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25 | // |
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26 | // $Id: G4MuBetheBlochModel.hh,v 1.18 2009/02/20 14:48:16 vnivanch Exp $ |
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27 | // GEANT4 tag $Name: geant4-09-04-beta-01 $ |
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28 | // |
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29 | // ------------------------------------------------------------------- |
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30 | // |
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31 | // GEANT4 Class header file |
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32 | // |
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33 | // |
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34 | // File name: G4MuBetheBlochModel |
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35 | // |
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36 | // Author: Vladimir Ivanchenko on base of Laszlo Urban code |
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37 | // |
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38 | // Creation date: 09.08.2002 |
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39 | // |
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40 | // Modifications: |
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41 | // |
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42 | // 23-12-02 Change interface in order to move to cut per region (V.Ivanchenko) |
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43 | // 24-01-03 Make models region aware (V.Ivanchenko) |
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44 | // 13-02-03 Add Nama (V.Ivanchenko) |
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45 | // 10-02-04 Calculation of radiative corrections using R.Kokoulin model (V.I) |
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46 | // 08-04-05 Major optimisation of internal interfaces (V.Ivantchenko) |
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47 | // 12-04-05 Add usage of G4EmCorrections (V.Ivanchenko) |
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48 | // 13-02-06 ComputeCrossSectionPerElectron, ComputeCrossSectionPerAtom (mma) |
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49 | // |
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50 | |
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51 | // |
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52 | // Class Description: |
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53 | // |
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54 | // Implementation of Bethe-Bloch model of energy loss and |
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55 | // delta-electron production by heavy charged particles |
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56 | |
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57 | // ------------------------------------------------------------------- |
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58 | // |
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59 | |
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60 | #ifndef G4MuBetheBlochModel_h |
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61 | #define G4MuBetheBlochModel_h 1 |
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62 | |
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63 | #include "G4VEmModel.hh" |
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64 | |
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65 | class G4ParticleChangeForLoss; |
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66 | class G4EmCorrections; |
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67 | |
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68 | class G4MuBetheBlochModel : public G4VEmModel |
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69 | { |
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70 | |
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71 | public: |
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72 | |
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73 | G4MuBetheBlochModel(const G4ParticleDefinition* p = 0, |
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74 | const G4String& nam = "MuBetheBloch"); |
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75 | |
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76 | virtual ~G4MuBetheBlochModel(); |
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77 | |
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78 | virtual void Initialise(const G4ParticleDefinition*, const G4DataVector&); |
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79 | |
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80 | virtual G4double MinEnergyCut(const G4ParticleDefinition*, |
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81 | const G4MaterialCutsCouple*); |
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82 | |
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83 | virtual G4double ComputeCrossSectionPerElectron( |
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84 | const G4ParticleDefinition*, |
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85 | G4double kineticEnergy, |
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86 | G4double cutEnergy, |
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87 | G4double maxEnergy); |
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88 | |
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89 | virtual G4double ComputeCrossSectionPerAtom( |
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90 | const G4ParticleDefinition*, |
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91 | G4double kineticEnergy, |
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92 | G4double Z, G4double A, |
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93 | G4double cutEnergy, |
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94 | G4double maxEnergy); |
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95 | |
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96 | virtual G4double CrossSectionPerVolume(const G4Material*, |
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97 | const G4ParticleDefinition*, |
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98 | G4double kineticEnergy, |
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99 | G4double cutEnergy, |
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100 | G4double maxEnergy); |
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101 | |
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102 | virtual G4double ComputeDEDXPerVolume(const G4Material*, |
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103 | const G4ParticleDefinition*, |
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104 | G4double kineticEnergy, |
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105 | G4double cutEnergy); |
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106 | |
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107 | virtual void SampleSecondaries(std::vector<G4DynamicParticle*>*, |
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108 | const G4MaterialCutsCouple*, |
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109 | const G4DynamicParticle*, |
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110 | G4double tmin, |
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111 | G4double maxEnergy); |
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112 | |
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113 | protected: |
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114 | |
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115 | virtual G4double MaxSecondaryEnergy(const G4ParticleDefinition*, |
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116 | G4double kinEnergy); |
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117 | |
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118 | private: |
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119 | |
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120 | inline void SetParticle(const G4ParticleDefinition* p); |
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121 | |
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122 | // hide assignment operator |
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123 | G4MuBetheBlochModel & operator=(const G4MuBetheBlochModel &right); |
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124 | G4MuBetheBlochModel(const G4MuBetheBlochModel&); |
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125 | |
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126 | const G4ParticleDefinition* particle; |
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127 | G4ParticleDefinition* theElectron; |
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128 | G4ParticleChangeForLoss* fParticleChange; |
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129 | G4EmCorrections* corr; |
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130 | |
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131 | G4double limitKinEnergy; |
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132 | G4double logLimitKinEnergy; |
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133 | G4double mass; |
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134 | G4double massSquare; |
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135 | G4double ratio; |
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136 | G4double twoln10; |
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137 | G4double bg2lim; |
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138 | G4double taulim; |
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139 | G4double alphaprime; |
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140 | static G4double xgi[8],wgi[8]; |
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141 | }; |
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142 | |
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143 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo...... |
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144 | |
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145 | inline void G4MuBetheBlochModel::SetParticle(const G4ParticleDefinition* p) |
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146 | { |
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147 | if(!particle) { |
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148 | particle = p; |
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149 | mass = particle->GetPDGMass(); |
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150 | massSquare = mass*mass; |
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151 | ratio = electron_mass_c2/mass; |
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152 | } |
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153 | } |
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154 | |
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155 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo..... |
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156 | |
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157 | #endif |
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