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: G4eplusAnnihilation 00034 // 00035 // Author: Vladimir Ivanchenko on base of Michel Maire code 00036 // 00037 // Creation date: 02.08.2004 00038 // 00039 // Modifications: 00040 // 08-11-04 Migration to new interface of Store/Retrieve tables (V.Ivanchenko) 00041 // 15-03-05 Update interface according to changings 00042 // in G4VEmProcess (V.Ivanchenko) 00043 // 08-04-05 Major optimisation of internal interfaces (V.Ivanchenko) 00044 // 04-05-05 Make class to be default (V.Ivanchenko) 00045 // 04-12-05 SetProposedKineticEnergy(0.) for annihilated positron (mma) 00046 // 09-08-06 add SetModel(G4VEmModel*) (mma) 00047 // 12-09-06, move SetModel(G4VEmModel*) in G4VEmProcess (mma) 00048 // 00049 // 00050 // Class Description: 00051 // 00052 // This class manages the process of e+ annihilation into 2 gammas 00053 // 00054 00055 // ------------------------------------------------------------------- 00056 // 00057 00058 #ifndef G4eplusAnnihilation_h 00059 #define G4eplusAnnihilation_h 1 00060 00061 #include "G4VEmProcess.hh" 00062 #include "G4Positron.hh" 00063 #include "G4VEmModel.hh" 00064 00065 class G4ParticleDefinition; 00066 00067 class G4eplusAnnihilation : public G4VEmProcess 00068 { 00069 00070 public: 00071 00072 G4eplusAnnihilation(const G4String& name = "annihil"); 00073 00074 virtual ~G4eplusAnnihilation(); 00075 00076 virtual G4bool IsApplicable(const G4ParticleDefinition& p); 00077 00078 virtual G4VParticleChange* AtRestDoIt( 00079 const G4Track& track, 00080 const G4Step& stepData); 00081 00082 virtual G4double AtRestGetPhysicalInteractionLength( 00083 const G4Track& track, 00084 G4ForceCondition* condition 00085 ); 00086 00087 // Print out of the class parameters 00088 virtual void PrintInfo(); 00089 00090 protected: 00091 00092 virtual void InitialiseProcess(const G4ParticleDefinition*); 00093 00094 private: 00095 00096 G4bool isInitialised; 00097 const G4ParticleDefinition* theGamma; 00098 }; 00099 00100 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo...... 00101 00102 #endif