Geant4-11
G4O2.cc
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27/*
28 * G4O2.cc
29 *
30 * Created on: Jul 23, 2019
31 * Author: W. G. Shin
32 * J. Ramos-Mendez and B. Faddegon
33*/
34
35#include "G4O2.hh"
37#include "G4SystemOfUnits.hh"
38#include "G4ParticleTable.hh"
39
40// ######################################################################
41// ### Oxygen molecule ###
42// ######################################################################
44
46{
47 if (theInstance != 0) return theInstance;
48 const G4String name = "O_2";
49 // search in particle table]
51 G4ParticleDefinition* anInstance = pTable->FindParticle(name);
52 if (anInstance == 0)
53 {
54 const G4String formatedName = "O_{2}";
55
56 // create molecule
57 //
58 // G4MoleculeDefinition(const G4String& name,
59 // G4double mass,
60 // G4double diffCoeff,
61 // G4int charge = 0,
62 // G4int electronicLevels = 0,
63 // G4double radius = -1,
64 // G4int atomsNumber = -1,
65 // G4double lifetime = -1,
66 // G4String aType = "",
67 // G4FakeParticleID ID = G4FakeParticleID::Create()
68 // );
69
70 G4double mass = 31.99546 * g / Avogadro * c_squared;
71 anInstance = new G4MoleculeDefinition(name, mass, 2.4e-9 * (m * m / s), 0, 0,
72 1.7 * angstrom, 2);
73
74 ((G4MoleculeDefinition*) anInstance)->SetLevelOccupation(0); // not implemented
75 ((G4MoleculeDefinition*) anInstance)->SetFormatedName(formatedName);
76 }
77 theInstance = reinterpret_cast<G4O2*>(anInstance);
78 return theInstance;
79}
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: G4O2.hh:48
static G4O2 * Definition()
Definition: G4O2.cc:45
static G4O2 * theInstance
Definition: G4O2.hh:50
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