source: trunk/source/processes/electromagnetic/standard/include/G4UniversalFluctuation.hh@ 966

Last change on this file since 966 was 961, checked in by garnier, 17 years ago

update processes

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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: G4UniversalFluctuation.hh,v 1.8 2009/02/19 19:17:50 vnivanch Exp $
27// GEANT4 tag $Name: geant4-09-02-ref-02 $
28//
29// -------------------------------------------------------------------
30//
31// GEANT4 Class header file
32//
33//
34// File name: G4UniversalFluctuation
35//
36// Author: Vladimir Ivanchenko
37//
38// Creation date: 03.01.2002
39//
40// Modifications:
41//
42// 09-12-02 remove warnings (V.Ivanchenko)
43// 28-12-02 add method Dispersion (V.Ivanchenko)
44// 07-02-03 change signature (V.Ivanchenko)
45// 13-02-03 Add name (V.Ivanchenko)
46// 16-10-03 Changed interface to Initialisation (V.Ivanchenko)
47// 07-02-05 define problim = 5.e-3 (mma)
48//
49// Class Description:
50//
51// Implementation of energy loss fluctuations
52
53// -------------------------------------------------------------------
54//
55
56#ifndef G4UniversalFluctuation_h
57#define G4UniversalFluctuation_h 1
58
59
60#include "G4VEmFluctuationModel.hh"
61#include "G4ParticleDefinition.hh"
62
63class G4UniversalFluctuation : public G4VEmFluctuationModel
64{
65
66public:
67
68 G4UniversalFluctuation(const G4String& nam = "UniFluc");
69
70 virtual ~G4UniversalFluctuation();
71
72 virtual G4double SampleFluctuations(const G4Material*,
73 const G4DynamicParticle*,
74 G4double&,
75 G4double&,
76 G4double&);
77
78 virtual G4double Dispersion( const G4Material*,
79 const G4DynamicParticle*,
80 G4double&,
81 G4double&);
82
83 // Initialisation before the run
84 virtual void InitialiseMe(const G4ParticleDefinition*);
85
86 // Initialisation prestep
87 virtual void SetParticleAndCharge(const G4ParticleDefinition*, G4double q2);
88
89private:
90
91 // hide assignment operator
92 G4UniversalFluctuation & operator=(const G4UniversalFluctuation &right);
93 G4UniversalFluctuation(const G4UniversalFluctuation&);
94
95 const G4ParticleDefinition* particle;
96 const G4Material* lastMaterial;
97
98 G4double particleMass;
99 G4double chargeSquare;
100
101 // data members to speed up the fluctuation calculation
102 G4double ipotFluct;
103 G4double electronDensity;
104
105 G4double f1Fluct;
106 G4double f2Fluct;
107 G4double e1Fluct;
108 G4double e2Fluct;
109 G4double e1LogFluct;
110 G4double e2LogFluct;
111 G4double ipotLogFluct;
112 G4double e0;
113
114 G4double facwidth;
115 G4double oldloss;
116 G4double samestep;
117 G4double e1,e2;
118
119 G4double minNumberInteractionsBohr;
120 G4double theBohrBeta2;
121 G4double minLoss;
122 G4double nmaxCont1;
123 G4double nmaxCont2;
124
125};
126
127//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
128
129#endif
130
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