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GVFlashShowerParameterisation.cc
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26 // $Id: GVFlashShowerParameterisation.cc 69796 2013-05-15 13:26:12Z gcosmo $
27 //
28 //
29 // ------------------------------------------------------------
30 // GEANT 4 class implementation
31 //
32 // ------- GVFlashShowerParameterisation -------
33 //
34 // Authors: Joanna Weng - 11.2005
35 // ------------------------------------------------------------
36 
37 #include <cmath>
38 
40 
41 #include "G4PhysicalConstants.hh"
42 #include "G4SystemOfUnits.hh"
43 #include "Randomize.hh"
44 #include "G4ios.hh"
45 #include "G4Material.hh"
46 #include "Gamma.hh" // @@@@
47 #include "G4MaterialTable.hh"
48 
50  : thePar(0), density(0.), A(0.), Z(0.), X0(0.), Ec(0.), Rm(0.), NSpot(0.)
51 {
52 }
53 
55 {
56 }
57 
59 {
60  // Returns Z or effective Z=sum(pi*Zi) (if compound/mixture)
61  // of given material
62  //
63  G4double z = 0.;
64  G4int nofElements = mat->GetNumberOfElements();
65  if (nofElements > 1)
66  {
67  for (G4int i=0; i<nofElements; i++) {
68  G4double zOfElement = mat->GetElement(i)->GetZ();
69  G4double massFraction = mat->GetFractionVector()[i];
70  // cout << mat->GetElement(i)->GetName()
71  // <<" Z= "<<zOfElement << " , Fraction= "<<massFraction <<endl;
72  z += zOfElement*massFraction;
73  }
74  }
75  else {
76  z = mat->GetZ();
77  }
78  return z;
79 }
80 
82 {
83  // Returns A or effective A=sum(pi*Ai) (if compound/mixture)
84  // of given material
85  //
86  G4double a = 0.;
87  G4int nofElements = mat->GetNumberOfElements();
88  if (nofElements > 1) {
89  for (G4int i=0; i<nofElements; i++) {
90  G4double aOfElement = mat->GetElement(i)->GetA()/(g/mole);
91  G4double massFraction = mat->GetFractionVector()[i];
92  a += aOfElement*massFraction;
93  }
94  }
95  else {
96  a = mat->GetA()/(g/mole);
97  }
98  return a;
99 }
100 
102 {
103  G4cout<<"/********************************************/ " << G4endl;
104  G4cout<<" - GVFlashShowerParameterisation::Material - " << G4endl;
105  G4cout<<" Material : " << mat->GetName() << G4endl;
106  G4cout<<" Z = "<< Z << G4endl;
107  G4cout<<" A = "<< A << G4endl;
108  G4cout<<" X0 = "<<X0/cm <<" cm" << G4endl;
109  G4cout<<" Rm= "<<Rm/cm <<" cm" << G4endl;
110  G4cout<<" Ec = "<<Ec/MeV << " MeV"<< G4endl;
111  G4cout<<"/********************************************/ " << G4endl;
112 }
113 
115 {
116  G4double Phi = twopi*G4UniformRand() ;
117  return Phi;
118 }
119 
121 {
122  static MyGamma theG;
123  return theG.Gamma(a, x);
124 }