ECCE @ EIC Software
 All Classes Namespaces Files Functions Variables Typedefs Enumerations Enumerator Friends Macros Groups Pages
G4ASTARStopping.hh
Go to the documentation of this file. Or view the newest version in sPHENIX GitHub for file G4ASTARStopping.hh
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 #ifndef G4ASTARStopping_h
28 #define G4ASTARStopping_h 1
29 
30 //---------------------------------------------------------------------------
31 //
32 // ClassName: G4ASTARStopping
33 //
34 // Description: Data on stopping power
35 //
36 // Author: Anton Ivantchenko 21.04.2006
37 //
38 // Organisation: QinetiQ Ltd, UK
39 // Customer: ESA/ESTEC, NOORDWIJK
40 // Contract: CSMAN-5288
41 //
42 // Modifications:
43 //
44 //----------------------------------------------------------------------------
45 //
46 // Class Description:
47 //
48 // Data on Stopping Powers of the He atoms from the NIST Data Base
49 // http://physics.nist.gov/PhysRefData/STAR/Text/ASTAR.html
50 //
51 // Current ASTAR database is available via url:
52 // http://physics.nist.gov/PhysRefData/Star/Text/ASTAR.html
53 
54 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
55 
56 #include "globals.hh"
57 #include "G4Material.hh"
58 #include "G4LPhysicsFreeVector.hh"
59 #include <vector>
60 
62 {
63 public:
64 
65  explicit G4ASTARStopping();
66 
68 
69  void Initialise();
70 
71  inline G4int GetIndex(const G4Material*) const;
72 
73  inline G4int GetIndex(const G4String&) const;
74 
76 
77  inline G4double GetElectronicDEDX(const G4Material*, G4double energy) const;
78 
79 private:
80 
81  void AddData(const G4float* s, const G4Material*);
82 
83  void FindData(G4int idx, const G4Material*);
84 
85  void PrintWarning(G4int idx) const;
86 
87  // hide assignment operator
89  G4ASTARStopping(const G4ASTARStopping&) = delete;
90 
91  size_t nvectors;
93  std::vector<const G4Material*> materials;
94  std::vector<G4LPhysicsFreeVector*> sdata;
95 };
96 
97 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
98 
100 {
101  G4int idx = -1;
102  for (size_t i=0; i<nvectors; ++i){
103  if (mat == materials[i]){
104  idx = i;
105  break;
106  }
107  }
108  return idx;
109 }
110 
111 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
112 
113 inline G4int G4ASTARStopping::GetIndex(const G4String& nam) const
114 {
115  G4int idx = -1;
116  for (size_t i=0; i<nvectors; ++i){
117  if (nam == materials[i]->GetName()){
118  idx = i;
119  break;
120  }
121  }
122  return idx;
123 }
124 
125 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
126 
127 inline G4double
129 {
130  G4double res = 0.0;
131  if (idx<0 || idx>= G4int(nvectors)) { PrintWarning(idx); }
132  if(energy < emin) { res = (*(sdata[idx]))[0]*std::sqrt(energy/emin); }
133  else { res = sdata[idx]->Value(energy); }
134  return res;
135 }
136 
137 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
138 
139 inline G4double
141 {
142  return GetElectronicDEDX(GetIndex(mat), energy);
143 }
144 
145 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
146 
147 #endif