include/Geant4/G4MuBetheBlochModel.hh

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0025 //
0026 //
0027 // -------------------------------------------------------------------
0028 //
0029 // GEANT4 Class header file
0030 //
0031 //
0032 // File name:     G4MuBetheBlochModel
0033 //
0034 // Author:        Vladimir Ivanchenko on base of Laszlo Urban code
0035 //
0036 // Creation date: 09.08.2002
0037 //
0038 // Modifications:
0039 //
0040 // 23-12-02 Change interface in order to move to cut per region (V.Ivanchenko)
0041 // 24-01-03 Make models region aware (V.Ivanchenko)
0042 // 13-02-03 Add Nama (V.Ivanchenko)
0043 // 10-02-04 Calculation of radiative corrections using R.Kokoulin model (V.I)
0044 // 08-04-05 Major optimisation of internal interfaces (V.Ivantchenko)
0045 // 12-04-05 Add usage of G4EmCorrections (V.Ivanchenko)
0046 // 13-02-06 ComputeCrossSectionPerElectron, ComputeCrossSectionPerAtom (mma)
0047 //
0048
0049 //
0050 // Class Description:
0051 //
0052 // Implementation of Bethe-Bloch model of energy loss and
0053 // delta-electron production by heavy charged particles
0054
0055 // -------------------------------------------------------------------
0056 //
0057
0058 #ifndef G4MuBetheBlochModel_h
0059 #define G4MuBetheBlochModel_h 1
0060
0061 #include "G4VEmModel.hh"
0062
0063 class G4ParticleChangeForLoss;
0064 class G4EmCorrections;
0065
0066 class G4MuBetheBlochModel : public G4VEmModel
0067 {
0068
0069 public:
0070
0071   explicit G4MuBetheBlochModel(const G4ParticleDefinition* p = nullptr,
0072                                const G4String& nam = "MuBetheBloch");
0073
0074   ~G4MuBetheBlochModel() = default;
0075
0076   void Initialise(const G4ParticleDefinition*, const G4DataVector&) override;
0077
0078   G4double MinEnergyCut(const G4ParticleDefinition*,
0079             const G4MaterialCutsCouple*) override;
0080
0081   G4double ComputeCrossSectionPerElectron(
0082                  const G4ParticleDefinition*,
0083                  G4double kineticEnergy,
0084                  G4double cutEnergy,
0085                  G4double maxEnergy);
0086
0087   G4double ComputeCrossSectionPerAtom(
0088                  const G4ParticleDefinition*,
0089                  G4double kineticEnergy,
0090                  G4double Z, G4double A,
0091                  G4double cutEnergy,
0092                  G4double maxEnergy) override;
0093
0094   G4double CrossSectionPerVolume(const G4Material*,
0095                  const G4ParticleDefinition*,
0096                  G4double kineticEnergy,
0097                  G4double cutEnergy,
0098                  G4double maxEnergy) override;
0099
0100   G4double ComputeDEDXPerVolume(const G4Material*,
0101                                 const G4ParticleDefinition*,
0102                                 G4double kineticEnergy,
0103                                 G4double cutEnergy) override;
0104
0105   void SampleSecondaries(std::vector<G4DynamicParticle*>*,
0106                 const G4MaterialCutsCouple*,
0107                 const G4DynamicParticle*,
0108                 G4double tmin,
0109                 G4double maxEnergy) override;
0110
0111   // hide assignment operator
0112   G4MuBetheBlochModel & operator=(const  G4MuBetheBlochModel &right) = delete;
0113   G4MuBetheBlochModel(const  G4MuBetheBlochModel&) = delete;
0114
0115 protected:
0116
0117   G4double MaxSecondaryEnergy(const G4ParticleDefinition*,
0118                               G4double kinEnergy) override;
0119
0120 private:
0121
0122   void SetParticle(const G4ParticleDefinition* p);
0123
0124   const G4ParticleDefinition* particle = nullptr;
0125   G4ParticleDefinition*       theElectron = nullptr;
0126   G4ParticleChangeForLoss*    fParticleChange = nullptr;
0127   G4EmCorrections*            corr = nullptr;
0128
0129   G4double limitRadCorrection;
0130   G4double limitKinEnergy;
0131   G4double logLimitKinEnergy;
0132   G4double mass = 1.0;
0133   G4double massSquare = 1.0;
0134   G4double ratio = 1.0;
0135   G4double twoln10;
0136   G4double alphaprime;
0137   static G4double xgi[8],wgi[8];
0138 };
0139
0140 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.....
0141
0142 #endif