source: trunk/source/processes/electromagnetic/muons/include/G4MuBremsstrahlungModel.hh@ 830

Last change on this file since 830 was 819, checked in by garnier, 17 years ago

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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: G4MuBremsstrahlungModel.hh,v 1.17 2007/10/11 09:25:31 vnivanch Exp $
27// GEANT4 tag $Name: geant4-09-01-patch-02 $
28//
29// -------------------------------------------------------------------
30//
31// GEANT4 Class header file
32//
33//
34// File name: G4MuBremsstrahlungModel
35//
36// Author: Vladimir Ivanchenko on base of Laszlo Urban code
37//
38// Creation date: 18.05.2002
39//
40// Modifications:
41//
42// 23-12-02 Change interface in order to move to cut per region (V.Ivanchenko)
43// 27-01-03 Make models region aware (V.Ivanchenko)
44// 13-02-03 Add name (V.Ivanchenko)
45// 10-02-04 Add lowestKinEnergy (V.Ivanchenko)
46// 08-04-05 Major optimisation of internal interfaces (V.Ivantchenko)
47// 13-02-06 add ComputeCrossSectionPerAtom (mma)
48// 11-10-07 Add ignoreCut flag (V.Ivanchenko)
49//
50
51//
52// Class Description:
53//
54// Implementation of energy loss for gamma emission by muons
55
56// -------------------------------------------------------------------
57//
58
59#ifndef G4MuBremsstrahlungModel_h
60#define G4MuBremsstrahlungModel_h 1
61
62#include "G4VEmModel.hh"
63
64class G4Element;
65class G4ParticleChangeForLoss;
66
67class G4MuBremsstrahlungModel : public G4VEmModel
68{
69
70public:
71
72 G4MuBremsstrahlungModel(const G4ParticleDefinition* p = 0,
73 const G4String& nam = "MuBrem");
74
75 virtual ~G4MuBremsstrahlungModel();
76
77 void SetParticle(const G4ParticleDefinition*);
78
79 void Initialise(const G4ParticleDefinition*, const G4DataVector&);
80
81 void SetLowestKineticEnergy(G4double e) {lowestKinEnergy = e;};
82
83 G4double MinEnergyCut(const G4ParticleDefinition*,
84 const G4MaterialCutsCouple*);
85
86 virtual G4double ComputeCrossSectionPerAtom(
87 const G4ParticleDefinition*,
88 G4double kineticEnergy,
89 G4double Z, G4double A,
90 G4double cutEnergy,
91 G4double maxEnergy);
92
93 virtual G4double CrossSectionPerVolume(const G4Material*,
94 const G4ParticleDefinition*,
95 G4double kineticEnergy,
96 G4double cutEnergy,
97 G4double maxEnergy);
98
99 virtual G4double ComputeDEDXPerVolume(const G4Material*,
100 const G4ParticleDefinition*,
101 G4double kineticEnergy,
102 G4double cutEnergy);
103
104 void SampleSecondaries(std::vector<G4DynamicParticle*>*,
105 const G4MaterialCutsCouple*,
106 const G4DynamicParticle*,
107 G4double tmin,
108 G4double maxEnergy);
109
110protected:
111
112 G4double MaxSecondaryEnergy(const G4ParticleDefinition*,
113 G4double kineticEnergy);
114
115public:
116
117 G4double ComputMuBremLoss(G4double Z, G4double A, G4double tkin, G4double cut);
118
119 G4double ComputeMicroscopicCrossSection(G4double tkin,
120 G4double Z,
121 G4double A,
122 G4double cut);
123
124 G4double ComputeDMicroscopicCrossSection(G4double tkin,
125 G4double Z,
126 G4double A,
127 G4double gammaEnergy);
128
129 inline void SetIgnoreCutFlag(G4bool);
130
131 inline G4bool IgnoreCutFlag() const;
132
133private:
134
135 G4DataVector* ComputePartialSumSigma(const G4Material* material,
136 G4double tkin, G4double cut);
137
138 const G4Element* SelectRandomAtom(const G4MaterialCutsCouple* couple) const;
139
140 void MakeSamplingTables();
141
142
143 // hide assignment operator
144 G4MuBremsstrahlungModel & operator=(const G4MuBremsstrahlungModel &right);
145 G4MuBremsstrahlungModel(const G4MuBremsstrahlungModel&);
146
147 G4ParticleDefinition* theGamma;
148 const G4ParticleDefinition* particle;
149 G4ParticleChangeForLoss* fParticleChange;
150
151 G4double highKinEnergy;
152 G4double lowKinEnergy;
153 G4double lowestKinEnergy;
154 G4double minThreshold;
155 G4double mass;
156
157 // tables for sampling
158 G4int nzdat,ntdat,NBIN;
159 static G4double zdat[5],adat[5],tdat[8];
160 G4double ya[1001], proba[5][8][1001];
161 G4double cutFixed;
162
163 G4bool ignoreCut;
164
165 std::vector<G4DataVector*> partialSumSigma;
166 G4bool samplingTablesAreFilled;
167
168};
169
170//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
171
172inline G4double G4MuBremsstrahlungModel::MaxSecondaryEnergy(
173 const G4ParticleDefinition*,
174 G4double kineticEnergy)
175{
176 return kineticEnergy;
177}
178
179//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
180
181inline void G4MuBremsstrahlungModel::SetIgnoreCutFlag(G4bool val)
182{
183 ignoreCut = val;
184}
185
186//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
187
188inline G4bool G4MuBremsstrahlungModel::IgnoreCutFlag() const
189{
190 return ignoreCut;
191}
192
193//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
194
195#endif
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