[819] | 1 | // |
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| 2 | // ******************************************************************** |
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| 3 | // * License and Disclaimer * |
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| 4 | // * * |
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| 5 | // * The Geant4 software is copyright of the Copyright Holders of * |
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| 6 | // * the Geant4 Collaboration. It is provided under the terms and * |
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| 7 | // * conditions of the Geant4 Software License, included in the file * |
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| 8 | // * LICENSE and available at http://cern.ch/geant4/license . These * |
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| 9 | // * include a list of copyright holders. * |
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| 10 | // * * |
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| 11 | // * Neither the authors of this software system, nor their employing * |
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| 12 | // * institutes,nor the agencies providing financial support for this * |
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| 13 | // * work make any representation or warranty, express or implied, * |
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| 14 | // * regarding this software system or assume any liability for its * |
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| 15 | // * use. Please see the license in the file LICENSE and URL above * |
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| 16 | // * for the full disclaimer and the limitation of liability. * |
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| 17 | // * * |
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| 18 | // * This code implementation is the result of the scientific and * |
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| 19 | // * technical work of the GEANT4 collaboration. * |
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| 20 | // * By using, copying, modifying or distributing the software (or * |
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| 21 | // * any work based on the software) you agree to acknowledge its * |
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| 22 | // * use in resulting scientific publications, and indicate your * |
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| 23 | // * acceptance of all terms of the Geant4 Software license. * |
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| 24 | // ******************************************************************** |
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| 25 | // |
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| 26 | // $Id: G4ionIonisation.hh,v 1.50 2007/11/09 11:45:45 vnivanch Exp $ |
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| 27 | // GEANT4 tag $Name: geant4-09-01-patch-02 $ |
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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: G4ionIonisation |
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| 35 | // |
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| 36 | // Author: Vladimir Ivanchenko |
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| 37 | // |
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| 38 | // Creation date: 07.05.2002 |
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| 39 | // |
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| 40 | // Modifications: |
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| 41 | // |
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| 42 | // 26-12-02 Secondary production moved to derived classes (VI) |
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| 43 | // 24-01-03 Make models region aware (V.Ivanchenko) |
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| 44 | // 05-02-03 Fix compilation warnings (V.Ivanchenko) |
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| 45 | // 13-02-03 SubCutoff regime is assigned to a region (V.Ivanchenko) |
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| 46 | // 15-02-03 Add control on delta pointer (V.Ivanchenko) |
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| 47 | // 23-05-03 Add fluctuation model as a member function (V.Ivanchenko) |
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| 48 | // 03-08-03 Add effective charge and saturation of tmax (V.Ivanchenko) |
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| 49 | // 12-11-03 Fix problem of negative effective charge (V.Ivanchenko) |
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| 50 | // 12-11-03 G4EnergyLossSTD -> G4EnergyLossProcess (V.Ivanchenko) |
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| 51 | // 21-01-04 Migrade to G4ParticleChangeForLoss (V.Ivanchenko) |
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| 52 | // 08-11-04 Migration to new interface of Store/Retrieve tables (V.Ivantchenko) |
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| 53 | // 08-04-05 Major optimisation of internal interfaces (V.Ivantchenko) |
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| 54 | // 11-04-05 Move MaxSecondary energy to model (V.Ivanchneko) |
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| 55 | // 11-04-04 Move MaxSecondaryEnergy to models (V.Ivanchenko) |
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| 56 | // 10-05-06 Add a possibility to download user data (V.Ivantchenko) |
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| 57 | // 22-07-06 Remove obsolete method (V.Ivantchenko) |
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| 58 | // 07-11-07 Moved CorrectionsAlongStep to cc (V.Ivantchenko) |
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| 59 | // |
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| 60 | // Class Description: |
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| 61 | // |
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| 62 | // This class manages the ionisation process for ions. Effective charge, |
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| 63 | // nuclear stopping power, energy loss corrections are taken into account. |
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| 64 | // It inherites from G4VEnergyLossLoss. |
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| 65 | // |
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| 66 | |
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| 67 | // ------------------------------------------------------------------- |
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| 68 | // |
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| 69 | |
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| 70 | #ifndef G4ionIonisation_h |
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| 71 | #define G4ionIonisation_h 1 |
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| 72 | |
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| 73 | #include "G4VEnergyLossProcess.hh" |
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| 74 | #include "G4ionEffectiveCharge.hh" |
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| 75 | #include "G4VEmModel.hh" |
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| 76 | #include "G4EmCorrections.hh" |
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| 77 | |
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| 78 | class G4Material; |
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| 79 | class G4PhysicsVector; |
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| 80 | class G4BraggIonModel; |
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| 81 | |
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| 82 | class G4ionIonisation : public G4VEnergyLossProcess |
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| 83 | { |
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| 84 | public: |
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| 85 | |
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| 86 | G4ionIonisation(const G4String& name = "ionIoni"); |
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| 87 | |
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| 88 | virtual ~G4ionIonisation(); |
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| 89 | |
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| 90 | inline G4bool IsApplicable(const G4ParticleDefinition& p); |
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| 91 | |
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| 92 | // Print out of the class parameters |
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| 93 | virtual void PrintInfo(); |
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| 94 | |
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| 95 | void AddStoppingData(G4int Z, G4int A, const G4String& materialName, |
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| 96 | G4PhysicsVector& dVector); |
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| 97 | |
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| 98 | void ActivateStoppingData(G4bool); |
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| 99 | |
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| 100 | void ActivateNuclearStopping(G4bool); |
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| 101 | |
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| 102 | protected: |
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| 103 | |
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| 104 | virtual void InitialiseEnergyLossProcess(const G4ParticleDefinition*, |
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| 105 | const G4ParticleDefinition*); |
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| 106 | |
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| 107 | virtual void CorrectionsAlongStep(const G4MaterialCutsCouple*, |
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| 108 | const G4DynamicParticle*, |
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| 109 | G4double& eloss, |
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| 110 | G4double& length); |
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| 111 | |
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| 112 | inline void InitialiseMassCharge(const G4Track&); |
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| 113 | |
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| 114 | inline G4double MinPrimaryEnergy(const G4ParticleDefinition* p, |
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| 115 | const G4Material*, G4double cut); |
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| 116 | |
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| 117 | inline G4double BetheBlochEnergyThreshold(); |
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| 118 | |
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| 119 | inline G4bool NuclearStoppingFlag(); |
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| 120 | |
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| 121 | // protected pointers |
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| 122 | G4ionEffectiveCharge* effCharge; |
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| 123 | G4EmCorrections* corr; |
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| 124 | |
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| 125 | private: |
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| 126 | |
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| 127 | // hide assignment operator |
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| 128 | G4ionIonisation & operator=(const G4ionIonisation &right); |
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| 129 | G4ionIonisation(const G4ionIonisation&); |
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| 130 | |
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| 131 | // cash |
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| 132 | const G4Material* curMaterial; |
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| 133 | const G4ParticleDefinition* curParticle; |
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| 134 | const G4ParticleDefinition* theParticle; |
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| 135 | const G4ParticleDefinition* theBaseParticle; |
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| 136 | |
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| 137 | G4double preKinEnergy; |
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| 138 | |
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| 139 | G4double eth; |
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| 140 | G4double baseMass; |
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| 141 | G4double massRatio; |
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| 142 | G4double massFactor; |
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| 143 | G4double charge2; |
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| 144 | |
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| 145 | G4bool isInitialised; |
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| 146 | G4bool stopDataActive; |
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| 147 | G4bool nuclearStopping; |
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| 148 | }; |
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| 149 | |
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| 150 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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| 151 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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| 152 | |
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| 153 | inline G4bool G4ionIonisation::IsApplicable(const G4ParticleDefinition& p) |
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| 154 | { |
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| 155 | return (p.GetPDGCharge() != 0.0 && !p.IsShortLived() && |
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| 156 | p.GetParticleType() == "nucleus"); |
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| 157 | } |
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| 158 | |
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| 159 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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| 160 | |
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| 161 | inline G4double G4ionIonisation::MinPrimaryEnergy( |
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| 162 | const G4ParticleDefinition*, const G4Material*, G4double cut) |
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| 163 | { |
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| 164 | G4double x = 0.5*cut/electron_mass_c2; |
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| 165 | G4double g = std::sqrt(1. + x); |
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| 166 | return proton_mass_c2*(g - 1.0); |
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| 167 | } |
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| 168 | |
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| 169 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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| 170 | |
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| 171 | inline void G4ionIonisation::InitialiseMassCharge(const G4Track& track) |
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| 172 | { |
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| 173 | preKinEnergy = track.GetKineticEnergy(); |
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| 174 | massRatio = baseMass/track.GetDynamicParticle()->GetMass(); |
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| 175 | charge2 = effCharge->EffectiveChargeSquareRatio(track.GetDefinition(), |
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| 176 | track.GetMaterial(), |
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| 177 | preKinEnergy); |
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| 178 | SetDynamicMassCharge(massRatio, charge2); |
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| 179 | } |
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| 180 | |
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| 181 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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| 182 | |
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| 183 | inline void G4ionIonisation::ActivateStoppingData(G4bool val) |
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| 184 | { |
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| 185 | stopDataActive = val; |
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| 186 | } |
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| 187 | |
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| 188 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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| 189 | |
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| 190 | inline void G4ionIonisation::ActivateNuclearStopping(G4bool val) |
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| 191 | { |
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| 192 | nuclearStopping = val; |
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| 193 | } |
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| 194 | |
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| 195 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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| 196 | |
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| 197 | inline G4double G4ionIonisation::BetheBlochEnergyThreshold() |
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| 198 | { |
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| 199 | return eth; |
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| 200 | } |
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| 201 | |
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| 202 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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| 203 | |
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| 204 | inline G4bool G4ionIonisation::NuclearStoppingFlag() |
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| 205 | { |
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| 206 | return nuclearStopping; |
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| 207 | } |
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| 208 | |
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| 209 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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| 210 | |
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| 211 | #endif |
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