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G4Neutron.cc
Go to the documentation of this file.
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//
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// ********************************************************************
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// * License and Disclaimer *
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// * *
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// * The Geant4 software is copyright of the Copyright Holders of *
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// * the Geant4 Collaboration. It is provided under the terms and *
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// * conditions of the Geant4 Software License, included in the file *
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// * LICENSE and available at http://cern.ch/geant4/license . These *
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// * include a list of copyright holders. *
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// * *
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// * Neither the authors of this software system, nor their employing *
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// * institutes,nor the agencies providing financial support for this *
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// * work make any representation or warranty, express or implied, *
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// * regarding this software system or assume any liability for its *
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// * use. Please see the license in the file LICENSE and URL above *
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// * for the full disclaimer and the limitation of liability. *
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// * *
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// * This code implementation is the result of the scientific and *
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// * technical work of the GEANT4 collaboration. *
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// * By using, copying, modifying or distributing the software (or *
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// * any work based on the software) you agree to acknowledge its *
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// * use in resulting scientific publications, and indicate your *
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// * acceptance of all terms of the Geant4 Software license. *
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// ********************************************************************
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//
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//
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// $Id: G4Neutron.cc 69557 2013-05-08 12:01:40Z gcosmo $
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//
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//
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// ----------------------------------------------------------------------
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// GEANT 4 class implementation file
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//
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// History: first implementation, based on object model of
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// 4th April 1996, G.Cosmo
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// H.Kurashige 7 July 1996
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// add neutron life time Oct 17 2000
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// **********************************************************************
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// New impelemenataion as an utility class M.Asai, 26 July 2004
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// ----------------------------------------------------------------------
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#include "
G4Neutron.hh
"
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#include "
G4PhysicalConstants.hh
"
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#include "
G4SystemOfUnits.hh
"
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#include "
G4ParticleTable.hh
"
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#include "
G4NeutronBetaDecayChannel.hh
"
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#include "
G4DecayTable.hh
"
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// ######################################################################
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// ### NEUTRON ###
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// ######################################################################
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G4Neutron
*
G4Neutron::theInstance
= 0;
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G4Neutron
*
G4Neutron::Definition
()
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{
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if
(
theInstance
!=0)
return
theInstance
;
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const
G4String
name
=
"neutron"
;
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// search in particle table]
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G4ParticleTable
* pTable =
G4ParticleTable::GetParticleTable
();
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G4Ions
* anInstance =
reinterpret_cast<
G4Ions
*
>
(pTable->
FindParticle
(name));
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if
(anInstance ==0)
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{
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// create particle
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//
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// Arguments for constructor are as follows
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// name mass width charge
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// 2*spin parity C-conjugation
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// 2*Isospin 2*Isospin3 G-parity
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// type lepton number baryon number PDG encoding
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// stable lifetime decay table
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// shortlived subType anti_encoding
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// use constants in CLHEP
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// static const double neutron_mass_c2 = 939.56563 * MeV;
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anInstance =
new
G4Ions
(
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name, neutron_mass_c2, 7.467e-28*
GeV
, 0.0,
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1, +1, 0,
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1, -1, 0,
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"baryon"
, 0, +1, 2112,
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false
, 885.7*
second
, NULL,
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false
,
"nucleon"
, -2112,
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0.0, 0
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);
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// Magnetic Moment
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G4double
mN =
eplus
*hbar_Planck/2./(proton_mass_c2 /c_squared);
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anInstance->
SetPDGMagneticMoment
( -1.9130427 * mN);
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//create Decay Table
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G4DecayTable
* table =
new
G4DecayTable
();
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// create a decay channel
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G4VDecayChannel
* mode =
new
G4NeutronBetaDecayChannel
(
"neutron"
,1.00);
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table->
Insert
(mode);
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anInstance->
SetDecayTable
(table);
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}
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theInstance
=
reinterpret_cast<
G4Neutron
*
>
(anInstance);
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return
theInstance
;
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}
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G4Neutron
*
G4Neutron::NeutronDefinition
()
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{
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return
Definition
();
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}
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G4Neutron
*
G4Neutron::Neutron
()
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{
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return
Definition
();
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}
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G4ParticleDefinition::SetDecayTable
void SetDecayTable(G4DecayTable *aDecayTable)
G4ParticleTable::FindParticle
G4ParticleDefinition * FindParticle(G4int PDGEncoding)
Definition:
G4ParticleTable.cc:620
G4Ions::G4Ions
G4Ions()
Definition:
G4Ions.hh:62
name
G4String name
Definition:
TRTMaterials.hh:40
G4VDecayChannel
Definition:
G4VDecayChannel.hh:101
G4Ions
Definition:
G4Ions.hh:51
G4DecayTable
Definition:
G4DecayTable.hh:50
G4ParticleTable.hh
G4Neutron.hh
G4ParticleTable
Definition:
G4ParticleTable.hh:65
second
static const double second
Definition:
G4SIunits.hh:138
GeV
static const double GeV
Definition:
G4SIunits.hh:196
G4Neutron::Neutron
static G4Neutron * Neutron()
Definition:
G4Neutron.cc:104
G4PhysicalConstants.hh
G4Neutron
Definition:
G4Neutron.hh:51
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
eplus
static const double eplus
Definition:
G4SIunits.hh:178
G4DecayTable.hh
G4NeutronBetaDecayChannel
Definition:
G4NeutronBetaDecayChannel.hh:43
G4Neutron::NeutronDefinition
static G4Neutron * NeutronDefinition()
Definition:
G4Neutron.cc:99
G4Neutron::theInstance
static G4Neutron * theInstance
Definition:
G4Neutron.hh:54
G4ParticleDefinition::SetPDGMagneticMoment
void SetPDGMagneticMoment(G4double mageticMoment)
G4NeutronBetaDecayChannel.hh
G4String
Definition:
G4String.hh:45
geant4.10.00.p01
source
particles
hadrons
barions
src
G4Neutron.cc
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