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: G4PolarizedBremsstrahlungCrossSection.hh 69847 2013-05-16 09:36:18Z gcosmo $ 00027 // 00028 // GEANT4 Class file 00029 // 00030 // 00031 // File name: G4PolarizedBremsstrahlungCrossSection 00032 // 00033 // Author: Karim Laihem and Andreas Schaelicke 00034 // 00035 // Creation date: 15.05.2005 00036 // 00037 // Modifications: 00038 // 15.10.07 introduced a more general framework for cross sections (AS) 00039 // 00040 // Class Description: 00041 // determine the polarization of the final state 00042 // in a Bremsstrahlung scattering process employing the differential 00043 // cross section by Olsen and Maximon 00044 // 00045 #ifndef G4PolarizedBremsstrahlungCrossSection_h 00046 #define G4PolarizedBremsstrahlungCrossSection_h 1 00047 00048 #include "G4StokesVector.hh" 00049 #include "G4VPolarizedCrossSection.hh" 00050 00051 00052 00053 00054 class G4PolarizedBremsstrahlungCrossSection : public G4VPolarizedCrossSection 00055 { 00056 public: 00057 G4PolarizedBremsstrahlungCrossSection(); 00058 virtual void Initialize(G4double eps, G4double X, G4double phi, 00059 const G4StokesVector & p0, 00060 const G4StokesVector & p1, 00061 G4int flag=0); 00062 virtual G4double XSection(const G4StokesVector & pol2, 00063 const G4StokesVector & pol3); 00064 00065 // return expected mean polarisation 00066 G4StokesVector GetPol2(); // electron/positron 00067 G4StokesVector GetPol3(); // photon 00068 private: 00069 00070 G4StokesVector theFinalLeptonPolarization; 00071 G4StokesVector theFinalGammaPolarization; 00072 00073 void InitializeMe(); 00074 00075 static G4bool scrnInitialized; 00076 static G4double SCRN [3][20]; // screening function lookup table; 00077 }; 00078 00079 #endif