00001 // 00002 // ******************************************************************** 00003 // * License and Disclaimer * 00004 // * * 00005 // * The Geant4 software is copyright of the Copyright Holders of * 00006 // * the Geant4 Collaboration. It is provided under the terms and * 00007 // * conditions of the Geant4 Software License, included in the file * 00008 // * LICENSE and available at http://cern.ch/geant4/license . These * 00009 // * include a list of copyright holders. * 00010 // * * 00011 // * Neither the authors of this software system, nor their employing * 00012 // * institutes,nor the agencies providing financial support for this * 00013 // * work make any representation or warranty, express or implied, * 00014 // * regarding this software system or assume any liability for its * 00015 // * use. Please see the license in the file LICENSE and URL above * 00016 // * for the full disclaimer and the limitation of liability. * 00017 // * * 00018 // * This code implementation is the result of the scientific and * 00019 // * technical work of the GEANT4 collaboration. * 00020 // * By using, copying, modifying or distributing the software (or * 00021 // * any work based on the software) you agree to acknowledge its * 00022 // * use in resulting scientific publications, and indicate your * 00023 // * acceptance of all terms of the Geant4 Software license. * 00024 // ******************************************************************** 00025 // 00026 // $Id$ 00027 // 00028 // ------------------------------------------------------------------- 00029 // 00030 // GEANT4 Class header file 00031 // 00032 // 00033 // File name: G4KleinNishinaModel 00034 // 00035 // Author: Vladimir Ivanchenko on base of G4KleinNishinaCompton 00036 // 00037 // Creation date: 13.06.2010 00038 // 00039 // Modifications: 00040 // 00041 // Class Description: 00042 // 00043 // Implementation of gamma Compton scattering with atomic effects 00044 // 00045 00046 // ------------------------------------------------------------------- 00047 // 00048 00049 #ifndef G4KleinNishinaModel_h 00050 #define G4KleinNishinaModel_h 1 00051 00052 #include "G4VEmModel.hh" 00053 #include "G4LorentzVector.hh" 00054 #include <vector> 00055 00056 class G4ParticleChangeForGamma; 00057 class G4VAtomDeexcitation; 00058 00059 class G4KleinNishinaModel : public G4VEmModel 00060 { 00061 00062 public: 00063 00064 G4KleinNishinaModel(const G4String& nam = "KleinNishina"); 00065 00066 virtual ~G4KleinNishinaModel(); 00067 00068 virtual void Initialise(const G4ParticleDefinition*, const G4DataVector&); 00069 00070 virtual G4double ComputeCrossSectionPerAtom( 00071 const G4ParticleDefinition*, 00072 G4double kinEnergy, 00073 G4double Z, 00074 G4double A, 00075 G4double cut, 00076 G4double emax); 00077 00078 virtual void SampleSecondaries(std::vector<G4DynamicParticle*>*, 00079 const G4MaterialCutsCouple*, 00080 const G4DynamicParticle*, 00081 G4double tmin, 00082 G4double maxEnergy); 00083 00084 protected: 00085 00086 G4ParticleDefinition* theGamma; 00087 G4ParticleDefinition* theElectron; 00088 G4ParticleChangeForGamma* fParticleChange; 00089 G4double lowestGammaEnergy; 00090 00091 private: 00092 00093 // hide assignment operator 00094 G4KleinNishinaModel & operator=(const G4KleinNishinaModel &right); 00095 G4KleinNishinaModel(const G4KleinNishinaModel&); 00096 00097 G4LorentzVector lv1, lv2; 00098 G4ThreeVector bst; 00099 00100 G4VAtomDeexcitation* fAtomDeexcitation; 00101 G4double limitFactor; 00102 std::vector<G4double> fProbabilities; 00103 }; 00104 00105 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... 00106 00107 #endif