| 1 | // |
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| 2 | // ******************************************************************** |
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| 3 | // * License and Disclaimer * |
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| 6 | // * the Geant4 Collaboration. It is provided under the terms and * |
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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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| 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: G4DNAScreenedRutherfordElasticModel.hh,v 1.4 2010/11/11 22:32:22 sincerti Exp $ |
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| 27 | // GEANT4 tag $Name: geant4-09-04-ref-00 $ |
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| 28 | // |
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| 29 | |
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| 30 | #ifndef G4DNAScreenedRutherfordElasticModel_h |
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| 31 | #define G4DNAScreenedRutherfordElasticModel_h 1 |
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| 32 | |
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| 33 | #include "G4VEmModel.hh" |
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| 34 | #include "G4ParticleChangeForGamma.hh" |
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| 35 | #include "G4ProductionCutsTable.hh" |
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| 36 | |
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| 37 | class G4DNAScreenedRutherfordElasticModel : public G4VEmModel |
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| 38 | { |
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| 39 | |
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| 40 | public: |
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| 41 | |
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| 42 | G4DNAScreenedRutherfordElasticModel(const G4ParticleDefinition* p = 0, |
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| 43 | const G4String& nam = "DNAScreenedRutherfordElasticModel"); |
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| 44 | |
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| 45 | virtual ~G4DNAScreenedRutherfordElasticModel(); |
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| 46 | |
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| 47 | virtual void Initialise(const G4ParticleDefinition*, const G4DataVector&); |
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| 48 | |
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| 49 | virtual G4double CrossSectionPerVolume(const G4Material* material, |
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| 50 | const G4ParticleDefinition* p, |
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| 51 | G4double ekin, |
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| 52 | G4double emin, |
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| 53 | G4double emax); |
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| 54 | |
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| 55 | virtual void SampleSecondaries(std::vector<G4DynamicParticle*>*, |
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| 56 | const G4MaterialCutsCouple*, |
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| 57 | const G4DynamicParticle*, |
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| 58 | G4double tmin, |
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| 59 | G4double maxEnergy); |
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| 60 | |
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| 61 | inline void SetKillBelowThreshold (G4double threshold); |
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| 62 | G4double GetKillBelowThreshold () { return killBelowEnergy; } |
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| 63 | |
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| 64 | protected: |
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| 65 | |
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| 66 | G4ParticleChangeForGamma* fParticleChangeForGamma; |
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| 67 | |
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| 68 | private: |
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| 69 | |
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| 70 | G4double killBelowEnergy; |
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| 71 | G4double lowEnergyLimit; |
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| 72 | G4double intermediateEnergyLimit; |
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| 73 | G4double highEnergyLimit; |
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| 74 | G4bool isInitialised; |
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| 75 | G4int verboseLevel; |
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| 76 | |
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| 77 | // Cross section |
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| 78 | |
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| 79 | G4double RutherfordCrossSection(G4double energy, G4double z); |
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| 80 | |
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| 81 | G4double ScreeningFactor(G4double energy, G4double z); |
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| 82 | |
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| 83 | // Final state according to Brenner & Zaider |
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| 84 | |
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| 85 | G4double BrennerZaiderRandomizeCosTheta(G4double k); |
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| 86 | G4double CalculatePolynomial(G4double k, std::vector<G4double>& vec); |
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| 87 | std::vector<G4double> betaCoeff; |
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| 88 | std::vector<G4double> deltaCoeff; |
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| 89 | std::vector<G4double> gamma035_10Coeff; |
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| 90 | std::vector<G4double> gamma10_100Coeff; |
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| 91 | std::vector<G4double> gamma100_200Coeff; |
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| 92 | |
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| 93 | // Final state according to Screened Rutherford |
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| 94 | |
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| 95 | G4double ScreenedRutherfordRandomizeCosTheta(G4double k, G4double z); |
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| 96 | |
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| 97 | // |
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| 98 | |
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| 99 | G4DNAScreenedRutherfordElasticModel & operator=(const G4DNAScreenedRutherfordElasticModel &right); |
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| 100 | G4DNAScreenedRutherfordElasticModel(const G4DNAScreenedRutherfordElasticModel&); |
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| 101 | |
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| 102 | }; |
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| 103 | |
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| 104 | inline void G4DNAScreenedRutherfordElasticModel::SetKillBelowThreshold (G4double threshold) |
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| 105 | { |
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| 106 | killBelowEnergy = threshold; |
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| 107 | if (threshold < 9*eV) |
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| 108 | G4Exception ("*** WARNING : the G4DNAScreenedRutherfordElasticModel class is not validated below 9 eV !","",JustWarning,"") ; |
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| 109 | } |
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| 110 | |
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| 111 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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| 112 | |
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| 113 | #endif |
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