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G4PSTARStopping.hh
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26 
27 #ifndef G4PSTARStopping_h
28 #define G4PSTARStopping_h 1
29 
30 //---------------------------------------------------------------------------
31 //
32 // ClassName: G4PSTARStopping
33 //
34 // Description: Data on stopping power
35 //
36 // Author: Anton Ivantchenko 18.04.2006
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 from the NIST Data Base
49 // http://physics.nist.gov/PhysRefData/STAR/Text/PSTAR.html
50 //
51 // Current PSTAR database is available via url:
52 // http://physics.nist.gov/PhysRefData/Star/Text/PSTAR.html
53 //
54 
55 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
56 
57 #include "globals.hh"
58 #include "G4Material.hh"
59 #include "G4LPhysicsFreeVector.hh"
60 #include <vector>
61 
63 {
64 public:
65 
66  explicit G4PSTARStopping();
67 
69 
70  void Initialise();
71 
72  inline G4int GetIndex(const G4Material*) const;
73 
74  inline G4int GetIndex(const G4String&) const;
75 
77 
78  inline G4double GetElectronicDEDX(const G4Material*, G4double energy) const;
79 
80 private:
81 
82  void AddData(const G4float* s, const G4Material*);
83 
84  void FindData(G4int idx, const G4Material*);
85 
86  void PrintWarning(G4int idx) const;
87 
88  // hide assignment operator
90  G4PSTARStopping(const G4PSTARStopping&) = delete;
91 
94  std::vector<const G4Material*> materials;
95  std::vector<G4LPhysicsFreeVector*> sdata;
96 };
97 
98 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
99 
101 {
102  G4int idx = -1;
103  for (G4int i=0; i<nvectors; ++i){
104  if (mat == materials[i]){
105  idx = i;
106  break;
107  }
108  }
109  return idx;
110 }
111 
112 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
113 
114 inline G4int G4PSTARStopping::GetIndex(const G4String& nam) const
115 {
116  G4int idx = -1;
117  for (G4int i=0; i<nvectors; ++i){
118  if (nam == materials[i]->GetName()){
119  idx = i;
120  break;
121  }
122  }
123  return idx;
124 }
125 
126 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
127 
128 inline G4double
130 {
131  G4double res = 0.0;
132  if (idx<0 || idx>= nvectors) { PrintWarning(idx); }
133  else if(energy < emin) { res = (*(sdata[idx]))[0]*std::sqrt(energy/emin); }
134  else { res = sdata[idx]->Value(energy); }
135  return res;
136 }
137 
138 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
139 
140 inline G4double
142 {
143  return GetElectronicDEDX(GetIndex(mat), energy);
144 }
145 
146 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
147 
148 #endif