source: trunk/source/materials/include/G4IonisParamMat.hh@ 952

Last change on this file since 952 was 850, checked in by garnier, 17 years ago

geant4.8.2 beta

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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//
27// $Id: G4IonisParamMat.hh,v 1.12 2008/07/08 10:34:56 vnivanch Exp $
28// GEANT4 tag $Name: HEAD $
29//
30
31// class description
32//
33// The class contains few (physical) quantities related to the Ionisation
34// process, for a material defined by its pointer G4Material*
35//
36
37//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... ....oooOO0OOooo....
38
39// 09-07-98: data moved from G4Material (mma)
40// 09-03-01: copy constructor and assignement operator in public (mma)
41// 28-10-02: add setMeanExcitationEnergy (V.Ivanchenko)
42// 27-09-07: add computation of parameters for ions (V.Ivanchenko)
43// 04-03-08: add fBirks constant (mma)
44
45//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... ....oooOO0OOooo....
46
47#ifndef G4IonisParamMat_HH
48#define G4IonisParamMat_HH
49
50#include "G4ios.hh"
51#include "globals.hh"
52
53class G4Material; // forward declaration
54
55//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... ....oooOO0OOooo....
56
57class G4IonisParamMat // with description
58{
59public:
60
61 G4IonisParamMat(G4Material*);
62 virtual ~G4IonisParamMat();
63
64 //
65 // retrieval methods
66 //
67
68 // parameters for mean energy loss calculation:
69 G4double GetMeanExcitationEnergy() const {return fMeanExcitationEnergy;};
70 void SetMeanExcitationEnergy(G4double value);
71 G4double FindMeanExcitationEnergy(const G4String& chFormula);
72 G4double GetLogMeanExcEnergy() const {return fLogMeanExcEnergy;};
73 G4double* GetShellCorrectionVector() const {return fShellCorrectionVector;};
74 G4double GetTaul() const {return fTaul;};
75
76 // parameters of the density correction:
77 G4double GetCdensity() const {return fCdensity;};
78 G4double GetMdensity() const {return fMdensity;};
79 G4double GetAdensity() const {return fAdensity;};
80 G4double GetX0density() const {return fX0density;};
81 G4double GetX1density() const {return fX1density;};
82
83 // parameters of the energy loss fluctuation model:
84 G4double GetF1fluct() const {return fF1fluct;};
85 G4double GetF2fluct() const {return fF2fluct;};
86 G4double GetEnergy1fluct() const {return fEnergy1fluct;};
87 G4double GetLogEnergy1fluct() const {return fLogEnergy1fluct;};
88 G4double GetEnergy2fluct() const {return fEnergy2fluct;};
89 G4double GetLogEnergy2fluct() const {return fLogEnergy2fluct;};
90 G4double GetEnergy0fluct() const {return fEnergy0fluct;};
91 G4double GetRateionexcfluct() const {return fRateionexcfluct;};
92
93 // parameters for ion corrections computations
94 G4double GetZeffective() const {return fZeff;};
95 G4double GetFermiEnergy() const {return fFermiEnergy;};
96 G4double GetLFactor() const {return fLfactor;};
97
98 // parameters for Birks attenuation:
99 void SetBirksConstant(G4double value) {fBirks = value;};
100 G4double GetBirksConstant() const {return fBirks;};
101
102 // parameters for average energy per ion
103 void SetMeanEnergyPerIonPair(G4double value) {fMeanEnergyPerIon = value;};
104 G4double GetMeanEnergyPerIonPair() const {return fMeanEnergyPerIon;};
105
106public: // without description
107
108 G4IonisParamMat(const G4IonisParamMat&);
109 const G4IonisParamMat& operator=(const G4IonisParamMat&);
110 G4int operator==(const G4IonisParamMat&) const;
111 G4int operator!=(const G4IonisParamMat&) const;
112
113 G4IonisParamMat(__void__&);
114 // Fake default constructor for usage restricted to direct object
115 // persistency for clients requiring preallocation of memory for
116 // persistifiable objects.
117
118private:
119
120 // Compute mean parameters : ExcitationEnergy,Shell corretion vector ...
121 void ComputeMeanParameters();
122
123 // Compute parameters for the density effect
124 void ComputeDensityEffect();
125
126 // Compute parameters for the energy fluctuation model
127 void ComputeFluctModel();
128
129 // Compute parameters for ion parameterizations
130 void ComputeIonParameters();
131
132private:
133
134//
135// data members
136//
137 G4Material* fMaterial; // this material
138
139 // parameters for mean energy loss calculation
140 G4double fMeanExcitationEnergy; //
141 G4double fLogMeanExcEnergy; //
142 G4double* fShellCorrectionVector; // shell correction coefficients
143 G4double fTaul; // lower limit of Bethe-Bloch formula
144
145 // parameters of the density correction....
146 G4double fCdensity; // mat.constant
147 G4double fMdensity; // exponent
148 G4double fAdensity; //
149 G4double fX0density; //
150 G4double fX1density; //
151
152 // parameters of the energy loss fluctuation model
153 G4double fF1fluct;
154 G4double fF2fluct;
155 G4double fEnergy1fluct;
156 G4double fLogEnergy1fluct;
157 G4double fEnergy2fluct;
158 G4double fLogEnergy2fluct;
159 G4double fEnergy0fluct;
160 G4double fRateionexcfluct;
161
162 // parameters for ion corrections computations
163 G4double fZeff;
164 G4double fFermiEnergy;
165 G4double fLfactor;
166
167 // parameter for Birks attenuation
168 G4double fBirks;
169 // average energy per ion pair
170 G4double fMeanEnergyPerIon;
171};
172
173#endif
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