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G4OH.cc
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25 //
26 //
27 // Author: Mathieu Karamitors
28 //
29 // History:
30 // -----------
31 // 10 Oct 2011 M.Karamitros created
32 //
33 // -------------------------------------------------------------------
34 
35 #include "G4OH.hh"
36 #include "G4PhysicalConstants.hh"
37 #include "G4SystemOfUnits.hh"
38 #include "G4ParticleTable.hh"
39 
40 // ######################################################################
41 // ### Hydroxyl ###
42 // ######################################################################
44 
46 {
47  if (theInstance != 0) return theInstance;
48  const G4String name = "OH";
49  // search in particle table]
51  G4ParticleDefinition* anInstance = pTable->FindParticle(name);
52  if (anInstance == 0)
53  {
54  // create molecule
55  //
56  // G4MoleculeDefinition(const G4String& name,
57  // G4double mass,
58  // G4double diffCoeff,
59  // G4int charge = 0,
60  // G4int electronicLevels = 0,
61  // G4double radius = -1,
62  // G4int atomsNumber = -1,
63  // G4double lifetime = -1,
64  // G4String aType = "",
65  // G4FakeParticleID ID = G4FakeParticleID::Create()
66  // );
67 
68  G4double mass = 17.00734 * g / Avogadro * c_squared;
69  anInstance = new G4MoleculeDefinition(name, mass, 2.8e-9 * (m * m / s), 0,
70  5, 0.958 * angstrom, // radius
71  2 // number of atoms
72  );
73 
74  ((G4MoleculeDefinition*) anInstance)->SetLevelOccupation(0);
75  ((G4MoleculeDefinition*) anInstance)->SetLevelOccupation(1);
76  ((G4MoleculeDefinition*) anInstance)->SetLevelOccupation(2);
77  ((G4MoleculeDefinition*) anInstance)->SetLevelOccupation(3, 3);
78  ((G4MoleculeDefinition*) anInstance)->SetFormatedName("OH");
79  }
80  theInstance = reinterpret_cast<G4OH*>(anInstance);
81  return theInstance;
82 }
83