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 // author: Vladimir Grichine 00027 // 00028 // 14.10.12 V. Grichine, fFormFactor was added as the class member 00029 // 25.05.2011 first implementation 00030 // 00031 // X ray Rayleigh scattering model based on simplified form-factors 00032 // and angular distribution 00033 // 00034 00035 #ifndef G4XrayRayleighModel_h 00036 #define G4XrayRayleighModel_h 1 00037 00038 #include "G4VEmModel.hh" 00039 #include "G4ParticleChangeForGamma.hh" 00040 #include "G4Gamma.hh" 00041 00042 class G4XrayRayleighModel : public G4VEmModel 00043 { 00044 00045 public: 00046 00047 G4XrayRayleighModel(const G4ParticleDefinition* p = 0, 00048 const G4String& nam = "XrayRayleigh"); 00049 00050 virtual ~G4XrayRayleighModel(); 00051 00052 virtual void Initialise(const G4ParticleDefinition*, const G4DataVector&); 00053 00054 virtual G4double ComputeCrossSectionPerAtom( 00055 const G4ParticleDefinition*, 00056 G4double kinEnergy, 00057 G4double Z, 00058 G4double A=0, 00059 G4double cut=0, 00060 G4double emax=DBL_MAX); 00061 00062 virtual void SampleSecondaries(std::vector<G4DynamicParticle*>*, 00063 const G4MaterialCutsCouple*, 00064 const G4DynamicParticle*, 00065 G4double tmin, 00066 G4double maxEnergy); 00067 00068 protected: 00069 00070 G4ParticleChangeForGamma* fParticleChange; 00071 00072 private: 00073 00074 G4double lowEnergyLimit; 00075 G4double highEnergyLimit; 00076 G4double fFormFactor; 00077 00078 G4int verboseLevel; 00079 G4bool isInitialised; 00080 00081 static const G4double fCofA; 00082 static const G4double fCofR; 00083 00084 G4XrayRayleighModel & operator=(const G4XrayRayleighModel &right); 00085 G4XrayRayleighModel(const G4XrayRayleighModel&); 00086 00087 }; 00088 00089 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... 00090 00091 #endif