| Geant4 Cross Reference |
1 // 1
2 // *******************************************
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17 // *
18 // * This code implementation is the result
19 // * technical work of the GEANT4 collaboratio
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22 // * use in resulting scientific publicati
23 // * acceptance of all terms of the Geant4 Sof
24 // *******************************************
25 //
26 //
27 // -------------------------------------------
28 //
29 // GEANT4 Class file
30 //
31 //
32 // File name: G4hZiegler1985Nuclear
33 //
34 // Author: V.Ivanchenko (Vladimir.Ivanc
35 //
36 // Creation date: 20 July 2000
37 //
38 // Modifications:
39 // 20/07/2000 V.Ivanchenko First implementati
40 //
41 // Class Description:
42 //
43 // Nuclear stopping power parametrised accordi
44 // J.F.Ziegler, J.P. Biersack, U. Littmark
45 // The Stopping and Range of Ions in Matter,
46 // Vol.1, Pergamon Press, 1985
47 //
48 // Class Description: End
49 //
50 // -------------------------------------------
51 //
52 //....oooOO0OOooo........oooOO0OOooo........oo
53
54 #include "G4hZiegler1985Nuclear.hh"
55
56 #include "globals.hh"
57 #include "Randomize.hh"
58 #include "G4SystemOfUnits.hh"
59 #include "G4UnitsTable.hh"
60
61 //....oooOO0OOooo........oooOO0OOooo........oo
62
63 G4hZiegler1985Nuclear::G4hZiegler1985Nuclear()
64 {;}
65
66 //....oooOO0OOooo........oooOO0OOooo........oo
67
68 G4hZiegler1985Nuclear::~G4hZiegler1985Nuclear(
69 {;}
70
71 //....oooOO0OOooo........oooOO0OOooo........oo
72
73 G4double G4hZiegler1985Nuclear::NuclearStoppin
74 G4double z1, G
75 G4double m1, G
76 {
77 G4double energy = kineticEnergy/keV ; // en
78 G4double ionloss ;
79
80 G4double rm = (m1 + m2Local) * ( std::pow(z1
81
82 G4double er = 32.536 * m2Local * energy / (
83
84 if ( er <= 30 ) {
85 ionloss = 0.5*std::log(1+1.1383*er)/
86 (er+0.01312*std::pow(er,0.21226)+
87
88 } else {
89 ionloss = 0.5*std::log(er)/er ;
90 }
91
92 // Stragling
93 if(lossFlucFlag) {
94 G4double sig = 4.0 * m1 * m2Local / ((m1 +
95 (4.0 + 0.197*std::pow(er,-1.
96
97 ionloss *= G4RandGauss::shoot(1.0,sig) ;
98 }
99
100 ionloss *= 8.462 * z1 * z2 * m1 / rm ; // Re
101
102 if ( ionloss < 0.0) ionloss = 0.0 ;
103
104 return ionloss;
105 }
106
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