Geant4  10.02.p02
G4ionEffectiveCharge.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: G4ionEffectiveCharge.hh 79394 2014-02-27 08:51:38Z gcosmo $
27 //
28 // -------------------------------------------------------------------
29 //
30 // GEANT4 Class header file
31 //
32 //
33 // File name: G4ionEffectiveCharge
34 //
35 // Author: Vladimir Ivanchenko
36 //
37 // Creation date: 03.07.2004
38 //
39 // Modifications:
40 //
41 //
42 // Class Description:
43 //
44 // This class manages the simulation of effective charge of ions
45 // in the assumption of equilibrium between ion shelss and media.
46 // J.F.Ziegler and J.M.Manoyan, The stopping of ions in compaunds,
47 // Nucl. Inst. & Meth. in Phys. Res. B35 (1988) 215-228.
48 //
49 
50 // -------------------------------------------------------------------
51 //
52 
53 #ifndef G4ionEffectiveCharge_h
54 #define G4ionEffectiveCharge_h 1
55 
56 #include "globals.hh"
57 #include "G4ParticleDefinition.hh"
58 
59 class G4Material;
60 class G4Pow;
61 
63 {
64 
65 public:
66 
68 
69  virtual ~G4ionEffectiveCharge();
70 
72  const G4ParticleDefinition* p,
73  const G4Material* material,
74  G4double kineticEnergy);
75 
77  const G4Material* material,
78  G4double kineticEnergy);
79 
80 private:
81 
82  // hide assignment operator
85 
86  static const G4double inveplus;
88 
92 
95 
101 };
102 
103 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
104 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
105 
107  const G4ParticleDefinition* p,
108  const G4Material* material,
109  G4double kineticEnergy)
110 {
111  G4double charge = effCharge;
112  if( kineticEnergy != lastKinEnergy || material != lastMat || p != lastPart) {
113  charge = EffectiveCharge(p,material,kineticEnergy);
114  }
115  charge *= chargeCorrection*inveplus;
116 
117  return charge*charge;
118 }
119 
120 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
121 
122 #endif
const G4Material * lastMat
Definition: G4Pow.hh:56
G4double EffectiveChargeSquareRatio(const G4ParticleDefinition *p, const G4Material *material, G4double kineticEnergy)
const G4ParticleDefinition * lastPart
G4double EffectiveCharge(const G4ParticleDefinition *p, const G4Material *material, G4double kineticEnergy)
double G4double
Definition: G4Types.hh:76
G4ionEffectiveCharge & operator=(const G4ionEffectiveCharge &right)
static const G4double inveplus