Geant4  10.03
G4H3O.cc
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26 // $Id: G4H3O.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 "G4H3O.hh"
37 #include "G4PhysicalConstants.hh"
38 #include "G4SystemOfUnits.hh"
39 #include "G4ParticleTable.hh"
40 
41 // ######################################################################
42 // ### H3O ###
43 // ### oxonium is the usual name for H3O+ (hydronium) ###
44 // ######################################################################
46 
48 {
49  if (theInstance != 0) return theInstance;
50  const G4String name = "H3O";
51  // search in particle table]
53  G4ParticleDefinition* anInstance = pTable->FindParticle(name);
54  if (anInstance == 0)
55  {
56  const G4String formatedName = "H_{3}O";
57 
58  // create molecule
59  //
60  // G4MoleculeDefinition(const G4String& name,
61  // G4double mass,
62  // G4double diffCoeff,
63  // G4int charge = 0,
64  // G4int electronicLevels = 0,
65  // G4double radius = -1,
66  // G4int atomsNumber = -1,
67  // G4double lifetime = -1,
68  // G4String aType = "",
69  // G4FakeParticleID ID = G4FakeParticleID::Create()
70  // );
71 
73  G4double mass = 19.02 * g / Avogadro * c_squared;
74  anInstance = new G4MoleculeDefinition(name, mass, 9e-9 * (m * m / s), 1, // charge
75  5, // nb of occupancies
76  0.961 * angstrom, // radius
77  4 // nb of atoms
78  );
79 
80  ((G4MoleculeDefinition*) anInstance)->SetLevelOccupation(0);
81  ((G4MoleculeDefinition*) anInstance)->SetLevelOccupation(1);
82  ((G4MoleculeDefinition*) anInstance)->SetLevelOccupation(2, 4);
83  ((G4MoleculeDefinition*) anInstance)->SetLevelOccupation(3);
84  ((G4MoleculeDefinition*) anInstance)->SetLevelOccupation(4, 1);
85  ((G4MoleculeDefinition*) anInstance)->SetFormatedName(formatedName);
86  }
87  theInstance = reinterpret_cast<G4H3O*>(anInstance);
88  return theInstance;
89 }
G4ParticleDefinition * FindParticle(G4int PDGEncoding)
static constexpr double s
Definition: G4SIunits.hh:169
const char * name(G4int ptype)
static constexpr double g
Definition: G4SIunits.hh:183
static constexpr double m
Definition: G4SIunits.hh:129
static G4H3O * Definition()
Definition: G4H3O.cc:47
static G4H3O * theInstance
Definition: G4H3O.hh:62
static G4ParticleTable * GetParticleTable()
static constexpr double angstrom
Definition: G4SIunits.hh:102
Definition: G4H3O.hh:59
double G4double
Definition: G4Types.hh:76