Geant4.10
Main Page
Related Pages
Modules
Namespaces
Data Structures
Files
File List
Globals
All
Data Structures
Namespaces
Files
Functions
Variables
Typedefs
Enumerations
Enumerator
Friends
Macros
Groups
Pages
geant4.10.00.p01
source
particles
hadrons
barions
src
G4Neutron.cc
Go to the documentation of this file.
1
//
2
// ********************************************************************
3
// * License and Disclaimer *
4
// * *
5
// * The Geant4 software is copyright of the Copyright Holders of *
6
// * the Geant4 Collaboration. It is provided under the terms and *
7
// * conditions of the Geant4 Software License, included in the file *
8
// * LICENSE and available at http://cern.ch/geant4/license . These *
9
// * include a list of copyright holders. *
10
// * *
11
// * Neither the authors of this software system, nor their employing *
12
// * institutes,nor the agencies providing financial support for this *
13
// * work make any representation or warranty, express or implied, *
14
// * regarding this software system or assume any liability for its *
15
// * use. Please see the license in the file LICENSE and URL above *
16
// * for the full disclaimer and the limitation of liability. *
17
// * *
18
// * This code implementation is the result of the scientific and *
19
// * technical work of the GEANT4 collaboration. *
20
// * By using, copying, modifying or distributing the software (or *
21
// * any work based on the software) you agree to acknowledge its *
22
// * use in resulting scientific publications, and indicate your *
23
// * acceptance of all terms of the Geant4 Software license. *
24
// ********************************************************************
25
//
26
//
27
// $Id: G4Neutron.cc 69557 2013-05-08 12:01:40Z gcosmo $
28
//
29
//
30
// ----------------------------------------------------------------------
31
// GEANT 4 class implementation file
32
//
33
// History: first implementation, based on object model of
34
// 4th April 1996, G.Cosmo
35
// H.Kurashige 7 July 1996
36
// add neutron life time Oct 17 2000
37
// **********************************************************************
38
// New impelemenataion as an utility class M.Asai, 26 July 2004
39
// ----------------------------------------------------------------------
40
41
#include "
G4Neutron.hh
"
42
#include "
G4PhysicalConstants.hh
"
43
#include "
G4SystemOfUnits.hh
"
44
#include "
G4ParticleTable.hh
"
45
46
#include "
G4NeutronBetaDecayChannel.hh
"
47
#include "
G4DecayTable.hh
"
48
49
// ######################################################################
50
// ### NEUTRON ###
51
// ######################################################################
52
G4Neutron
* G4Neutron::theInstance = 0;
53
54
G4Neutron
*
G4Neutron::Definition
()
55
{
56
if
(theInstance !=0)
return
theInstance;
57
const
G4String
name
=
"neutron"
;
58
// search in particle table]
59
G4ParticleTable
* pTable =
G4ParticleTable::GetParticleTable
();
60
G4Ions
* anInstance =
reinterpret_cast<
G4Ions
*
>
(pTable->
FindParticle
(name));
61
if
(anInstance ==0)
62
{
63
// create particle
64
//
65
// Arguments for constructor are as follows
66
// name mass width charge
67
// 2*spin parity C-conjugation
68
// 2*Isospin 2*Isospin3 G-parity
69
// type lepton number baryon number PDG encoding
70
// stable lifetime decay table
71
// shortlived subType anti_encoding
72
// use constants in CLHEP
73
// static const double neutron_mass_c2 = 939.56563 * MeV;
74
75
anInstance =
new
G4Ions
(
76
name,
neutron_mass_c2
, 7.467e-28*
GeV
, 0.0,
77
1, +1, 0,
78
1, -1, 0,
79
"baryon"
, 0, +1, 2112,
80
false
, 885.7*
second
, NULL,
81
false
,
"nucleon"
, -2112,
82
0.0, 0
83
);
84
// Magnetic Moment
85
G4double
mN =
eplus
*
hbar_Planck
/2./(
proton_mass_c2
/
c_squared
);
86
anInstance->
SetPDGMagneticMoment
( -1.9130427 * mN);
87
//create Decay Table
88
G4DecayTable
* table =
new
G4DecayTable
();
89
// create a decay channel
90
G4VDecayChannel
* mode =
new
G4NeutronBetaDecayChannel
(
"neutron"
,1.00);
91
table->
Insert
(mode);
92
anInstance->
SetDecayTable
(table);
93
94
}
95
theInstance =
reinterpret_cast<
G4Neutron
*
>
(anInstance);
96
return
theInstance;
97
}
98
99
G4Neutron
*
G4Neutron::NeutronDefinition
()
100
{
101
return
Definition
();
102
}
103
104
G4Neutron
*
G4Neutron::Neutron
()
105
{
106
return
Definition
();
107
}
108
G4ParticleDefinition::SetDecayTable
void SetDecayTable(G4DecayTable *aDecayTable)
python.hepunit.GeV
GeV
Definition:
hepunit.py:120
G4ParticleTable::FindParticle
G4ParticleDefinition * FindParticle(G4int PDGEncoding)
Definition:
G4ParticleTable.cc:620
G4Ions::G4Ions
G4Ions()
Definition:
G4Ions.hh:62
python.hepunit.c_squared
c_squared
Definition:
hepunit.py:258
name
const XML_Char * name
Definition:
include/expat.h:151
python.hepunit.hbar_Planck
hbar_Planck
Definition:
hepunit.py:264
G4VDecayChannel
Definition:
G4VDecayChannel.hh:101
G4Ions
Definition:
G4Ions.hh:51
G4DecayTable
Definition:
G4DecayTable.hh:50
G4ParticleTable.hh
G4Neutron.hh
python.hepunit.second
int second
Definition:
hepunit.py:83
G4ParticleTable
Definition:
G4ParticleTable.hh:65
python.hepunit.proton_mass_c2
float proton_mass_c2
Definition:
hepunit.py:275
G4Neutron::Neutron
static G4Neutron * Neutron()
Definition:
G4Neutron.cc:104
G4PhysicalConstants.hh
G4Neutron
Definition:
G4Neutron.hh:51
python.hepunit.neutron_mass_c2
float neutron_mass_c2
Definition:
hepunit.py:276
G4DecayTable::Insert
void Insert(G4VDecayChannel *aChannel)
Definition:
G4DecayTable.cc:60
G4ParticleTable::GetParticleTable
static G4ParticleTable * GetParticleTable()
Definition:
G4ParticleTable.cc:95
G4Neutron::Definition
static G4Neutron * Definition()
Definition:
G4Neutron.cc:54
G4double
double G4double
Definition:
G4Types.hh:76
G4SystemOfUnits.hh
G4DecayTable.hh
G4NeutronBetaDecayChannel
Definition:
G4NeutronBetaDecayChannel.hh:43
G4Neutron::NeutronDefinition
static G4Neutron * NeutronDefinition()
Definition:
G4Neutron.cc:99
python.hepunit.eplus
int eplus
Definition:
hepunit.py:100
G4ParticleDefinition::SetPDGMagneticMoment
void SetPDGMagneticMoment(G4double mageticMoment)
G4NeutronBetaDecayChannel.hh
G4String
Definition:
examples/extended/parallel/TopC/ParN02/AnnotatedFiles/G4String.hh:45
Generated on Wed Apr 30 2014 15:54:55 for Geant4.10 by
1.8.7