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 | // |
---|
27 | // $Id: G4ComptonScattering52.hh,v 1.4 2007/05/16 14:00:56 vnivanch Exp $ |
---|
28 | // GEANT4 tag $Name: $ |
---|
29 | // |
---|
30 | //------------------ G4ComptonScattering52 physics process ----------------------- |
---|
31 | // by Michel Maire, April 1996 |
---|
32 | // |
---|
33 | // 10-06-96, updated by M.Maire |
---|
34 | // 21-06-96, SetCuts implementation, M.Maire |
---|
35 | // 06-01-97, crossection table + meanfreepath table, M.Maire |
---|
36 | // 17-02-97, New Physics scheme |
---|
37 | // 25-02-97, GetMeanFreePath() now is public function |
---|
38 | // 12-03-97, new physics scheme again |
---|
39 | // 13-08-98, new methods SetBining() PrintInfo() |
---|
40 | // 03-08-01, new methods Store/Retrieve PhysicsTable (mma) |
---|
41 | // 06-08-01, BuildThePhysicsTable() called from constructor (mma) |
---|
42 | // 19-09-01, come back to previous ProcessName "compt" |
---|
43 | // 20-09-01, DoIt: fminimalEnergy = 1*eV (mma) |
---|
44 | // 01-10-01, come back to BuildPhysicsTable(const G4ParticleDefinition&) |
---|
45 | // 13-08-04, suppress icc file; make public ComputeCrossSectionPerAtom() (mma) |
---|
46 | // 09-11-04, Remove Retrieve tables (V.Ivantchenko) |
---|
47 | // 04-05-05, Add 52 to class name (V.Ivanchenko) |
---|
48 | // ----------------------------------------------------------------------------- |
---|
49 | |
---|
50 | // class description |
---|
51 | // |
---|
52 | // inherit from G4VDiscreteProcess |
---|
53 | // |
---|
54 | |
---|
55 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo...... |
---|
56 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo...... |
---|
57 | |
---|
58 | #ifndef G4ComptonScattering52_h |
---|
59 | #define G4ComptonScattering52_h 1 |
---|
60 | |
---|
61 | #include "G4ios.hh" |
---|
62 | #include "globals.hh" |
---|
63 | #include "Randomize.hh" |
---|
64 | #include "G4VDiscreteProcess.hh" |
---|
65 | #include "G4PhysicsTable.hh" |
---|
66 | #include "G4PhysicsLogVector.hh" |
---|
67 | #include "G4Element.hh" |
---|
68 | #include "G4Gamma.hh" |
---|
69 | #include "G4Electron.hh" |
---|
70 | #include "G4Step.hh" |
---|
71 | |
---|
72 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo...... |
---|
73 | |
---|
74 | class G4ComptonScattering52 : public G4VDiscreteProcess |
---|
75 | |
---|
76 | { |
---|
77 | public: // with description |
---|
78 | |
---|
79 | G4ComptonScattering52(const G4String& processName ="compt", |
---|
80 | G4ProcessType type = fElectromagnetic); |
---|
81 | |
---|
82 | ~G4ComptonScattering52(); |
---|
83 | |
---|
84 | G4bool IsApplicable(const G4ParticleDefinition&); |
---|
85 | // true for Gamma only. |
---|
86 | |
---|
87 | void SetPhysicsTableBining(G4double lowE, G4double highE, G4int nBins); |
---|
88 | // Allows to define the binning of the PhysicsTables, |
---|
89 | // before to build them. |
---|
90 | |
---|
91 | void BuildPhysicsTable(const G4ParticleDefinition&); |
---|
92 | // It builds the total CrossSectionPerAtom table, for Gamma, |
---|
93 | // and for every element contained in the elementTable. |
---|
94 | // It builds the MeanFreePath table, for Gamma, |
---|
95 | // and for every material contained in the materialTable. |
---|
96 | |
---|
97 | G4bool StorePhysicsTable(const G4ParticleDefinition* , |
---|
98 | const G4String& directory, G4bool); |
---|
99 | // store CrossSection and MeanFreePath tables into an external file |
---|
100 | // specified by 'directory' (must exist before invokation) |
---|
101 | |
---|
102 | //G4bool RetrievePhysicsTable(const G4ParticleDefinition* , |
---|
103 | // const G4String& directory, G4bool); |
---|
104 | // retrieve CrossSection and MeanFreePath tables from an external file |
---|
105 | // specified by 'directory' |
---|
106 | |
---|
107 | void PrintInfoDefinition(); |
---|
108 | // Print few lines of informations about the process: validity range, |
---|
109 | // origine ..etc.. |
---|
110 | // Invoked by BuildThePhysicsTable(). |
---|
111 | |
---|
112 | G4double GetMeanFreePath(const G4Track& aTrack, |
---|
113 | G4double previousStepSize, |
---|
114 | G4ForceCondition* condition); |
---|
115 | // It returns the MeanFreePath of the process for the current track : |
---|
116 | // (energy, material) |
---|
117 | // The previousStepSize and G4ForceCondition* are not used. |
---|
118 | // This function overloads a virtual function of the base class. |
---|
119 | // It is invoked by the ProcessManager of the Particle. |
---|
120 | |
---|
121 | G4double GetCrossSectionPerAtom(G4DynamicParticle* aDynamicGamma, |
---|
122 | G4Element* anElement); |
---|
123 | // It returns the total CrossSectionPerAtom of the process, |
---|
124 | // for the current DynamicGamma (energy), in anElement. |
---|
125 | |
---|
126 | G4VParticleChange* PostStepDoIt(const G4Track& aTrack, |
---|
127 | const G4Step& aStep); |
---|
128 | // It computes the final state of the process (at end of step), |
---|
129 | // returned as a ParticleChange object. |
---|
130 | // This function overloads a virtual function of the base class. |
---|
131 | // It is invoked by the ProcessManager of the Particle. |
---|
132 | |
---|
133 | virtual |
---|
134 | G4double ComputeCrossSectionPerAtom(G4double GammaEnergy, |
---|
135 | G4double AtomicNumber); |
---|
136 | |
---|
137 | G4double ComputeMeanFreePath(G4double GammaEnergy, |
---|
138 | G4Material* aMaterial); |
---|
139 | private: |
---|
140 | |
---|
141 | // hide assignment operator as private |
---|
142 | G4ComptonScattering52& operator=(const G4ComptonScattering52 &right); |
---|
143 | G4ComptonScattering52(const G4ComptonScattering52& ); |
---|
144 | |
---|
145 | private: |
---|
146 | |
---|
147 | G4PhysicsTable* theCrossSectionTable; // table for crosssection |
---|
148 | G4PhysicsTable* theMeanFreePathTable; // table for mean free path |
---|
149 | |
---|
150 | G4double LowestEnergyLimit; // low energy limit of the tables |
---|
151 | G4double HighestEnergyLimit; // high energy limit of the tables |
---|
152 | G4int NumbBinTable; // number of bins in the tables |
---|
153 | |
---|
154 | protected: |
---|
155 | |
---|
156 | G4double fminimalEnergy; // minimalEnergy of produced particles |
---|
157 | }; |
---|
158 | |
---|
159 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo...... |
---|
160 | |
---|
161 | #endif |
---|
162 | |
---|