Geant4 Cross Reference |
1 // 1 2 // ******************************************* 3 // * License and Disclaimer 4 // * 5 // * The Geant4 software is copyright of th 6 // * the Geant4 Collaboration. It is provided 7 // * conditions of the Geant4 Software License 8 // * LICENSE and available at http://cern.ch/ 9 // * include a list of copyright holders. 10 // * 11 // * Neither the authors of this software syst 12 // * institutes,nor the agencies providing fin 13 // * work make any representation or warran 14 // * regarding this software system or assum 15 // * use. Please see the license in the file 16 // * for the full disclaimer and the limitatio 17 // * 18 // * This code implementation is the result 19 // * technical work of the GEANT4 collaboratio 20 // * By using, copying, modifying or distri 21 // * any work based on the software) you ag 22 // * use in resulting scientific publicati 23 // * acceptance of all terms of the Geant4 Sof 24 // ******************************************* 25 // 26 ////////////////////////////////////////////// 27 // Class: G4AdjointPhotoElectricModel 28 // Author: L. Desorgher 29 // Organisation: SpaceIT GmbH 30 // 31 // Model for the adjoint photo electric proce 32 // Put a higher limit on the CS to avoid a hi 33 // at low energy. The very high adjoint CS of 34 // reaction produce a high rate of reverse ph 35 // side of a shielding for eaxmple, the corre 36 // correction in the StepDoIt method is not s 37 // energy. The problem is partially solved by 38 // compensating it by an extra weight correct 39 // it with other reverse processes the revers 40 // source of very occasional high weights tha 41 // computation. A way to solve this problemn 42 // to find as it happens in rare cases but do 43 // the normal distribution. (Very Tricky!) 44 // 45 ////////////////////////////////////////////// 46 47 #ifndef G4AdjointPhotoElectricModel_h 48 #define G4AdjointPhotoElectricModel_h 1 49 50 #include "globals.hh" 51 #include "G4VEmAdjointModel.hh" 52 53 class G4AdjointPhotoElectricModel : public G4V 54 { 55 public: 56 G4AdjointPhotoElectricModel(); 57 ~G4AdjointPhotoElectricModel() override; 58 59 void SampleSecondaries(const G4Track& aTrack 60 G4ParticleChange* fPa 61 62 G4double AdjointCrossSection(const G4Materia 63 G4double primEn 64 G4bool isScatPr 65 66 G4double AdjointCrossSectionPerAtom(const G4 67 G4double 68 69 G4AdjointPhotoElectricModel(G4AdjointPhotoEl 70 G4AdjointPhotoElectricModel& operator=( 71 const G4AdjointPhotoElectricModel& right) 72 73 protected: 74 void CorrectPostStepWeight(G4ParticleChange* 75 G4double old_weig 76 G4double projecti 77 G4bool isScatProj 78 79 private: 80 void DefineCurrentMaterialAndElectronEnergy( 81 const G4MaterialCutsCouple* aCouple, G4dou 82 83 G4double fShellProb[40][40]; 84 G4double fXsec[40]; 85 G4double fTotAdjointCS = 0.; 86 G4double fFactorCSBiasing = 1.; 87 G4double fPreStepAdjointCS = 0.; 88 G4double fPostStepAdjointCS = 0.; 89 G4double fCurrenteEnergy = 0.; 90 91 size_t fIndexElement = 0; 92 }; 93 94 #endif 95