Geant4-11
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"
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
static constexpr double m
Definition: G4SIunits.hh:109
static constexpr double angstrom
Definition: G4SIunits.hh:82
static constexpr double s
Definition: G4SIunits.hh:154
static constexpr double g
Definition: G4SIunits.hh:168
double G4double
Definition: G4Types.hh:83
Definition: G4OH.hh:60
static G4OH * Definition()
Definition: G4OH.cc:45
static G4OH * theInstance
Definition: G4OH.hh:62
G4ParticleDefinition * FindParticle(G4int PDGEncoding)
static G4ParticleTable * GetParticleTable()
const char * name(G4int ptype)
float Avogadro
Definition: hepunit.py:252
float c_squared
Definition: hepunit.py:257