Gabriele Cosmo
176 lines
5.9 KiB
C++
176 lines
5.9 KiB
C++
//
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// ********************************************************************
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// * DISCLAIMER *
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// * *
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// * The following disclaimer summarizes all the specific disclaimers *
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// * of contributors to this software. The specific disclaimers,which *
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// * govern, are listed with their locations in: *
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// * http://cern.ch/geant4/license *
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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. *
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// * *
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// * This code implementation is the intellectual property of the *
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// * GEANT4 collaboration. *
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// * By copying, distributing or modifying the Program (or any work *
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// * based on the Program) you indicate your acceptance of this *
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// * statement, and all its terms. *
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// ********************************************************************
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//
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//
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//
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// original by H.P. Wellisch
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// modified by J.L. Chuma, TRIUMF, 19-Nov-1996
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// last modified: 27-Mar-1997
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// Chr. Volcker, 10-Nov-1997: new methods and class variables.
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// M.G. Pia, 2 Oct 1998: modified GetFermiMomentum (original design was
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// the source of memory leaks)
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#ifndef G4Nucleus_h
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#define G4Nucleus_h 1
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// Class Description
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// This class knows how to describe a nucleus;
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// to be used in your physics implementation (not physics list) in case you need this physics.
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// Class Description - End
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#include "globals.hh"
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#include "G4ThreeVector.hh"
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#include "G4ParticleTypes.hh"
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#include "G4ReactionProduct.hh"
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#include "G4DynamicParticle.hh"
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#include "G4ReactionProductVector.hh"
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#include "Randomize.hh"
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class G4Nucleus
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{
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public:
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G4Nucleus();
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G4Nucleus( const G4double A, const G4double Z );
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G4Nucleus( const G4Material *aMaterial );
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~G4Nucleus();
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inline G4Nucleus( const G4Nucleus &right )
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{ *this = right; }
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inline G4Nucleus & operator=( const G4Nucleus &right )
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{
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if( this != &right )
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{
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aEff=right.aEff;
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zEff=right.zEff;
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pnBlackTrackEnergy=right.pnBlackTrackEnergy;
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dtaBlackTrackEnergy=right.dtaBlackTrackEnergy;
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theTemp = right.theTemp;
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excitationEnergy = right.excitationEnergy;
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momentum = right.momentum;
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fermiMomentum = right.fermiMomentum;
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}
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return *this;
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}
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inline G4bool operator==( const G4Nucleus &right ) const
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{ return ( this == (G4Nucleus *) &right ); }
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inline G4bool operator!=( const G4Nucleus &right ) const
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{ return ( this != (G4Nucleus *) &right ); }
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void ChooseParameters( const G4Material *aMaterial );
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void SetParameters( const G4double A, const G4double Z );
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inline G4double GetN() const
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{ return aEff; }
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inline G4double GetZ() const
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{ return zEff; }
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G4DynamicParticle *ReturnTargetParticle() const;
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G4double AtomicMass( const G4double A, const G4double Z ) const;
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G4double GetThermalPz( const G4double mass, const G4double temp ) const;
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G4ReactionProduct GetThermalNucleus(G4double aMass, G4double temp=-1) const;
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G4ReactionProduct GetBiasedThermalNucleus(G4double aMass, G4ThreeVector aVelocity, G4double temp=-1) const;
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G4double Cinema( G4double kineticEnergy );
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G4double EvaporationEffects( G4double kineticEnergy );
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inline G4double GetPNBlackTrackEnergy() const
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{ return pnBlackTrackEnergy; }
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inline G4double GetDTABlackTrackEnergy() const
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{ return dtaBlackTrackEnergy; }
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// ****************** methods introduced by ChV ***********************
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// return fermi momentum
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G4ThreeVector GetFermiMomentum();
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/*
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// return particle to be absorbed.
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G4DynamicParticle* ReturnAbsorbingParticle(G4double weight);
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*/
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// final nucleus fragmentation. Return List of particles
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// which should be used for further tracking.
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G4ReactionProductVector* Fragmentate();
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// excitation Energy...
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void AddExcitationEnergy(G4double anEnergy);
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// momentum of absorbed Particles ..
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void AddMomentum(const G4ThreeVector aMomentum);
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// return excitation Energy
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G4double GetEnergyDeposit() {return excitationEnergy; }
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// ****************************** end ChV ******************************
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private:
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G4double aEff; // effective atomic weight
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G4double zEff; // effective atomic number
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G4double pnBlackTrackEnergy; // the kinetic energy available for
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// proton/neutron black track particles
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G4double dtaBlackTrackEnergy; // the kinetic energy available for
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// deuteron/triton/alpha particles
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// ************************** member variables by ChV *******************
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// Excitation Energy leading to evaporation or deexcitation.
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G4double excitationEnergy;
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// Momentum, accumulated by absorbing Particles
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G4ThreeVector momentum;
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// Fermi Gas model: at present, we assume constant nucleon density for all
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// nuclei. The radius of a nucleon is taken to be 1 fm.
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// see for example S.Fl"ugge, Encyclopedia of Physics, Vol XXXIX,
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// Structure of Atomic Nuclei (Berlin-Gottingen-Heidelberg, 1957) page 426.
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// maximum momentum possible from fermi gas model:
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G4double fermiMomentum;
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G4double theTemp; // temperature
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// ****************************** end ChV ******************************
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};
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#endif
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