| Geant4 Cross Reference |
1 // 1
2 // *******************************************
3 // * License and Disclaimer
4 // *
5 // * The Geant4 software is copyright of th
6 // * the Geant4 Collaboration. It is provided
7 // * conditions of the Geant4 Software License
8 // * LICENSE and available at http://cern.ch/
9 // * include a list of copyright holders.
10 // *
11 // * Neither the authors of this software syst
12 // * institutes,nor the agencies providing fin
13 // * work make any representation or warran
14 // * regarding this software system or assum
15 // * use. Please see the license in the file
16 // * for the full disclaimer and the limitatio
17 // *
18 // * This code implementation is the result
19 // * technical work of the GEANT4 collaboratio
20 // * By using, copying, modifying or distri
21 // * any work based on the software) you ag
22 // * use in resulting scientific publicati
23 // * acceptance of all terms of the Geant4 Sof
24 // *******************************************
25 //
26 //
27 //
28 // -------------------------------------------
29 // GEANT 4 class implementation
30 //
31 // ------- GVFlashShowerParameterisation
32 //
33 // Authors: Joanna Weng - 11.2005
34 // -------------------------------------------
35
36 #include <cmath>
37
38 #include "GVFlashShowerParameterisation.hh"
39
40 #include "G4PhysicalConstants.hh"
41 #include "G4SystemOfUnits.hh"
42 #include "Randomize.hh"
43 #include "G4ios.hh"
44 #include "G4Material.hh"
45 #include "Gamma.hh" // @@@@
46 #include "G4MaterialTable.hh"
47
48 GVFlashShowerParameterisation::GVFlashShowerPa
49 : thePar(0), density(0.), A(0.), Z(0.), X0(0
50 {
51 fGamma = new MyGamma;
52 }
53
54 GVFlashShowerParameterisation::~GVFlashShowerP
55 {
56 delete fGamma;
57 }
58
59 G4double GVFlashShowerParameterisation::GetEff
60 {
61 // Returns Z or effective Z=sum(pi*Zi) (if c
62 // of given material
63 //
64 G4double z = 0.;
65 G4int nofElements = (G4int)mat->GetNumberOfE
66 if (nofElements > 1) {
67 for (G4int i = 0; i < nofElements; ++i) {
68 G4double zOfElement = mat->GetElement(i)
69 G4double massFraction = mat->GetFraction
70 // cout << mat->GetElement(i)->GetName()
71 // <<" Z= "<<zOfElement << " , Frac
72 z += zOfElement * massFraction;
73 }
74 }
75 else {
76 z = mat->GetZ();
77 }
78 return z;
79 }
80
81 G4double GVFlashShowerParameterisation::GetEff
82 {
83 // Returns A or effective A=sum(pi*Ai) (if c
84 // of given material
85 //
86 G4double a = 0.;
87 G4int nofElements = (G4int)mat->GetNumberOfE
88 if (nofElements > 1) {
89 for (G4int i = 0; i < nofElements; ++i) {
90 G4double aOfElement = mat->GetElement(i)
91 G4double massFraction = mat->GetFraction
92 a += aOfElement * massFraction;
93 }
94 }
95 else {
96 a = mat->GetA() / (g / mole);
97 }
98 return a;
99 }
100
101 void GVFlashShowerParameterisation::PrintMater
102 {
103 G4cout << "/********************************
104 G4cout << " - GVFlashShowerParameterisation
105 G4cout << " Material : " << mat->GetN
106 G4cout << " Z = " << Z << G4endl;
107 G4cout << " A = " << A << G4endl;
108 G4cout << " X0 = " << X0 / cm << " cm" <<
109 G4cout << " Rm = " << Rm / cm << " cm" <<
110 G4cout << " Ec = " << Ec / MeV << " MeV" <
111 G4cout << "/********************************
112 }
113
114 G4double GVFlashShowerParameterisation::Genera
115 {
116 G4double Phi = twopi*G4UniformRand() ;
117 return Phi;
118 }
119
120 G4double GVFlashShowerParameterisation::gam(G4
121 {
122 return fGamma->Gamma(a, x);
123 }
124