Geant4  10.00.p02
G4AdjointPhotoElectricModel.hh
Go to the documentation of this file.
1 //
2 // ********************************************************************
3 // * License and Disclaimer *
4 // * *
5 // * The Geant4 software is copyright of the Copyright Holders of *
6 // * the Geant4 Collaboration. It is provided under the terms and *
7 // * conditions of the Geant4 Software License, included in the file *
8 // * LICENSE and available at http://cern.ch/geant4/license . These *
9 // * include a list of copyright holders. *
10 // * *
11 // * Neither the authors of this software system, nor their employing *
12 // * institutes,nor the agencies providing financial support for this *
13 // * work make any representation or warranty, express or implied, *
14 // * regarding this software system or assume any liability for its *
15 // * use. Please see the license in the file LICENSE and URL above *
16 // * for the full disclaimer and the limitation of liability. *
17 // * *
18 // * This code implementation is the result of the scientific and *
19 // * technical work of the GEANT4 collaboration. *
20 // * By using, copying, modifying or distributing the software (or *
21 // * any work based on the software) you agree to acknowledge its *
22 // * use in resulting scientific publications, and indicate your *
23 // * acceptance of all terms of the Geant4 Software license. *
24 // ********************************************************************
25 //
26 // $Id: G4AdjointPhotoElectricModel.hh 66892 2013-01-17 10:57:59Z gunter $
27 //
29 // Module: G4AdjointPhotoElectricModel
30 // Author: L. Desorgher
31 // Organisation: SpaceIT GmbH
32 // Contract: ESA contract 21435/08/NL/AT
33 // Customer: ESA/ESTEC
35 //
36 // CHANGE HISTORY
37 // --------------
38 // ChangeHistory:
39 // -1 September 2007 creation by L. Desorgher
40 //
41 // -January 2009. L. Desorgher
42 // Put a higher limit on the CS to avoid a high rate of Inverse Photo e- effect at low energy. The very high adjoint CS of the reverse
43 // photo electric reaction produce a high rate of reverse photo electric reaction in the inner side of a shielding for eaxmple, the correction of this occurence
44 // by weight correction in the StepDoIt method is not statistically sufficient at small energy. The problem is partially solved by setting an higher CS limit
45 // and compensating it by an extra weight correction factor. However when coupling it with other reverse processes the reverse photo-electric is still
46 // the source of very occasional high weight that decrease the efficiency of the computation. A way to solve this problemn is still needed but is difficult
47 // to find as it happens in rarea case but does give a weighrt that is outside the noemal distribution. (Very Tricky!)
48 //
49 // -October 2009 Correction of Element sampling. L. Desorgher
50 //
51 //-------------------------------------------------------------
52 // Documentation:
53 // Model for the adjoint photo electric process
54 //
55 #ifndef G4AdjointPhotoElectricModel_h
56 #define G4AdjointPhotoElectricModel_h 1
57 
58 
59 #include "globals.hh"
60 #include "G4VEmAdjointModel.hh"
61 #include "G4PEEffectFluoModel.hh"
63 
64 {
65 public:
66 
69 
70 
71 
72  virtual void SampleSecondaries(const G4Track& aTrack,
73  G4bool IsScatProjToProjCase,
74  G4ParticleChange* fParticleChange);
75  virtual G4double AdjointCrossSection(const G4MaterialCutsCouple* aCouple,
76  G4double primEnergy,
77  G4bool IsScatProjToProjCase);
79  G4double primEnergy,
80  G4bool IsScatProjToProjCase);
81 
82  G4double AdjointCrossSectionPerAtom(const G4Element* anElement,G4double electronEnergy);
83 
84 
85 
87  DefineDirectEMModel(aModel);}
88 
89  virtual void CorrectPostStepWeight(G4ParticleChange* fParticleChange,
90  G4double old_weight,
91  G4double adjointPrimKinEnergy,
92  G4double projectileKinEnergy,
93  G4bool IsScatProjToProjCase);
94 
95 
96 private:
103 
104 
106 
107 
111 
112 
113 private:
115  G4double eEnergy);
116 
117 };
118 
119 #endif
void DefineCurrentMaterialAndElectronEnergy(const G4MaterialCutsCouple *aCouple, G4double eEnergy)
virtual void CorrectPostStepWeight(G4ParticleChange *fParticleChange, G4double old_weight, G4double adjointPrimKinEnergy, G4double projectileKinEnergy, G4bool IsScatProjToProjCase)
virtual G4double GetAdjointCrossSection(const G4MaterialCutsCouple *aCouple, G4double primEnergy, G4bool IsScatProjToProjCase)
void SetTheDirectPEEffectModel(G4PEEffectFluoModel *aModel)
virtual G4double AdjointCrossSection(const G4MaterialCutsCouple *aCouple, G4double primEnergy, G4bool IsScatProjToProjCase)
bool G4bool
Definition: G4Types.hh:79
G4double AdjointCrossSectionPerAtom(const G4Element *anElement, G4double electronEnergy)
virtual void SampleSecondaries(const G4Track &aTrack, G4bool IsScatProjToProjCase, G4ParticleChange *fParticleChange)
void DefineDirectEMModel(G4VEmModel *aModel)
double G4double
Definition: G4Types.hh:76