Geant4  10.01.p02
G4OH.cc
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26 // $Id: G4OH.cc 85244 2014-10-27 08:24:13Z gcosmo $
27 //
28 // Author: Mathieu Karamitors
29 //
30 // History:
31 // -----------
32 // 10 Oct 2011 M.Karamitros created
33 //
34 // -------------------------------------------------------------------
35 
36 #include "G4OH.hh"
37 #include "G4PhysicalConstants.hh"
38 #include "G4SystemOfUnits.hh"
39 #include "G4ParticleTable.hh"
40 
41 // ######################################################################
42 // ### Hydroxyl ###
43 // ######################################################################
45 
47 {
48  if (theInstance != 0) return theInstance;
49  const G4String name = "OH";
50  // search in particle table]
52  G4ParticleDefinition* anInstance = pTable->FindParticle(name);
53  if (anInstance == 0)
54  {
55  // create molecule
56  //
57  // G4MoleculeDefinition(const G4String& name,
58  // G4double mass,
59  // G4double diffCoeff,
60  // G4int charge = 0,
61  // G4int electronicLevels = 0,
62  // G4double radius = -1,
63  // G4int atomsNumber = -1,
64  // G4double lifetime = -1,
65  // G4String aType = "",
66  // G4FakeParticleID ID = G4FakeParticleID::Create()
67  // );
68 
69  G4double mass = 17.00734 * g / Avogadro * c_squared;
70  anInstance = new G4MoleculeDefinition(name, mass, 2.8e-9 * (m * m / s), 0,
71  5, 0.958 * angstrom, // radius
72  2 // number of atoms
73  );
74 
75  ((G4MoleculeDefinition*) anInstance)->SetLevelOccupation(0);
76  ((G4MoleculeDefinition*) anInstance)->SetLevelOccupation(1);
77  ((G4MoleculeDefinition*) anInstance)->SetLevelOccupation(2);
78  ((G4MoleculeDefinition*) anInstance)->SetLevelOccupation(3, 3);
79  ((G4MoleculeDefinition*) anInstance)->SetFormatedName("OH");
80  }
81  theInstance = reinterpret_cast<G4OH*>(anInstance);
82  return theInstance;
83 }
84 
G4ParticleDefinition * FindParticle(G4int PDGEncoding)
G4String name
Definition: TRTMaterials.hh:40
static const double s
Definition: G4SIunits.hh:150
Definition: G4OH.hh:59
static G4OH * theInstance
Definition: G4OH.hh:62
static G4ParticleTable * GetParticleTable()
static const double g
Definition: G4SIunits.hh:162
static const double m
Definition: G4SIunits.hh:110
static G4OH * Definition()
Definition: G4OH.cc:46
double G4double
Definition: G4Types.hh:76
static const double angstrom
Definition: G4SIunits.hh:92