Gabriele Cosmo
229 lines
9.3 KiB
C++
229 lines
9.3 KiB
C++
//
|
|
// ********************************************************************
|
|
// * License and Disclaimer *
|
|
// * *
|
|
// * The Geant4 software is copyright of the Copyright Holders of *
|
|
// * the Geant4 Collaboration. It is provided under the terms and *
|
|
// * conditions of the Geant4 Software License, included in the file *
|
|
// * LICENSE and available at http://cern.ch/geant4/license . These *
|
|
// * include a list of copyright holders. *
|
|
// * *
|
|
// * Neither the authors of this software system, nor their employing *
|
|
// * institutes,nor the agencies providing financial support for this *
|
|
// * work make any representation or warranty, express or implied, *
|
|
// * regarding this software system or assume any liability for its *
|
|
// * use. Please see the license in the file LICENSE and URL above *
|
|
// * for the full disclaimer and the limitation of liability. *
|
|
// * *
|
|
// * This code implementation is the result of the scientific and *
|
|
// * technical work of the GEANT4 collaboration. *
|
|
// * By using, copying, modifying or distributing the software (or *
|
|
// * any work based on the software) you agree to acknowledge its *
|
|
// * use in resulting scientific publications, and indicate your *
|
|
// * acceptance of all terms of the Geant4 Software license. *
|
|
// ********************************************************************
|
|
//
|
|
// G4ParticleChange
|
|
//
|
|
// Class description:
|
|
//
|
|
// Concrete class for ParticleChange containing the results after
|
|
// invocation of a physics process.
|
|
// This includes final states of parent particle (momentum, energy,
|
|
// etc) and secondary particles generated by the interaction.
|
|
// The tracking assumes that all the values of energy and momentum
|
|
// are in global reference system, therefore all the needed Lorentz
|
|
// transformations must have been already computed when filling the
|
|
// data-members of this class.
|
|
//
|
|
// IMPORTANT NOTE: Despite the name, what this class stores/returns
|
|
// through its methods, are the "FINAL" values of the Position,
|
|
// Momentum, etc.
|
|
|
|
// Author: Hisaya Kurashige, 23 March 1998
|
|
// --------------------------------------------------------------------
|
|
#ifndef G4ParticleChange_hh
|
|
#define G4ParticleChange_hh 1
|
|
|
|
#include "globals.hh"
|
|
#include "G4ios.hh"
|
|
#include "G4ThreeVector.hh"
|
|
#include "G4VParticleChange.hh"
|
|
|
|
class G4DynamicParticle;
|
|
|
|
class G4ParticleChange : public G4VParticleChange
|
|
{
|
|
public:
|
|
|
|
G4ParticleChange();
|
|
// Default constructor
|
|
|
|
~G4ParticleChange() override = default;
|
|
// Destructor
|
|
|
|
G4ParticleChange(const G4ParticleChange& right) = delete;
|
|
G4ParticleChange& operator=(const G4ParticleChange& right) = delete;
|
|
|
|
// --- the following methods are for updating G4Step -----
|
|
// Return the pointer to G4Step after updating the Step information
|
|
// by using final state of the track given by a physics process
|
|
|
|
G4Step* UpdateStepForAlongStep(G4Step* Step) override;
|
|
// A physics process gives the final state of the particle
|
|
// relative to the initial state at the beginning of the Step,
|
|
// i.e., based on information of G4Track (or equivalently
|
|
// the PreStepPoint).
|
|
// In this method, the differences (delta) between these two states
|
|
// are calculated, and are accumulated in PostStepPoint.
|
|
// Take note that the return type of GetMomentumChange() is a
|
|
// pointer to G4ParticleMomentum. Also it is a normalized
|
|
// momentum vector
|
|
|
|
G4Step* UpdateStepForAtRest(G4Step* Step) override;
|
|
G4Step* UpdateStepForPostStep(G4Step* Step) override;
|
|
// A physics process gives the final state of the particle
|
|
// based on information of G4Track (or equivalently the PreStepPoint)
|
|
|
|
void Initialize(const G4Track&) override;
|
|
// Initialize all propoerties by using G4Track information
|
|
|
|
// --- methods to keep information of the final state ---
|
|
//
|
|
// The ProposeXXX methods store (and return in GetXXX methods)
|
|
// the "FINAL" values of the Position, Momentum, etc.
|
|
|
|
inline const G4ThreeVector* GetMomentumDirection() const;
|
|
inline void ProposeMomentumDirection(G4double Px, G4double Py, G4double Pz);
|
|
inline void ProposeMomentumDirection(const G4ThreeVector& Pfinal);
|
|
// Get/Propose the MomentumDirection vector: it is the final momentum
|
|
// direction
|
|
|
|
inline const G4ThreeVector* GetPolarization() const;
|
|
inline void ProposePolarization(G4double Px, G4double Py, G4double Pz);
|
|
inline void ProposePolarization(const G4ThreeVector& finalPoralization);
|
|
// Get/Propose the final Polarization vector
|
|
|
|
inline G4double GetEnergy() const;
|
|
inline void ProposeEnergy(G4double finalEnergy);
|
|
// Get/Propose the final kinetic energy of the current particle
|
|
|
|
inline G4double GetVelocity() const;
|
|
inline void ProposeVelocity(G4double finalVelocity);
|
|
// Get/Propose the final velocity of the current particle
|
|
|
|
inline G4double GetProperTime() const;
|
|
inline void ProposeProperTime(G4double finalProperTime);
|
|
// Get/Propose the final ProperTime
|
|
|
|
inline const G4ThreeVector* GetPosition() const;
|
|
inline void ProposePosition(G4double x, G4double y, G4double z);
|
|
inline void ProposePosition(const G4ThreeVector& finalPosition);
|
|
// Get/Propose the final position of the current particle
|
|
|
|
inline void ProposeGlobalTime(G4double t);
|
|
inline void ProposeLocalTime(G4double t);
|
|
// Get/Propose the final global/local Time.
|
|
// NOTE: DO NOT INVOKE both methods in a step
|
|
// Each method affects both local and global time
|
|
|
|
inline G4double GetGlobalTime(G4double timeDelay = 0.0) const;
|
|
inline G4double GetLocalTime(G4double timeDelay = 0.0) const;
|
|
// Convert the time delay to the glocbal/local time.
|
|
// Can get the final global/local time without argument
|
|
|
|
inline G4double GetMass() const;
|
|
inline void ProposeMass(G4double finalMass);
|
|
// Get/Propose the final dynamical mass in G4DynamicParticle
|
|
|
|
inline G4double GetCharge() const;
|
|
inline void ProposeCharge(G4double finalCharge);
|
|
// Get/Propose the final dynamical charge in G4DynamicParticle
|
|
|
|
inline G4double GetMagneticMoment() const;
|
|
inline void ProposeMagneticMoment(G4double finalMagneticMoment);
|
|
// Get/Propose the final MagneticMoment in G4DynamicParticle
|
|
|
|
inline G4ThreeVector
|
|
GetGlobalPosition(const G4ThreeVector& displacement) const;
|
|
// Convert the position displacement to the global position
|
|
|
|
inline G4ThreeVector CalcMomentum(G4double energy, G4ThreeVector direction,
|
|
G4double mass) const;
|
|
// Calculate momentum by using Energy, Momentum Direction, and Mass
|
|
|
|
// --- methods for adding secondaries ---
|
|
|
|
void AddSecondary(G4Track* aSecondary);
|
|
// Add a secondary particle to theListOfSecondaries
|
|
|
|
void AddSecondary(G4DynamicParticle* aSecondary,
|
|
G4bool IsGoodForTracking = false);
|
|
// Add a secondary particle to theListOfSecondaries.
|
|
// Position and time are same as thePositionChange and theTimeChange
|
|
|
|
void AddSecondary(G4DynamicParticle* aSecondary, G4ThreeVector position,
|
|
G4bool IsGoodForTracking = false);
|
|
// Add a secondary particle to theListOfSecondaries.
|
|
// Global time are same as theTimeChange and theTimeChange
|
|
|
|
void AddSecondary(G4DynamicParticle* aSecondary, G4double time,
|
|
G4bool IsGoodForTracking = false);
|
|
// Add a secondary particle to theListOfSecondaries.
|
|
// Position and are same as thePositionChange
|
|
|
|
// --- Dump and debug methods ---
|
|
|
|
void DumpInfo() const override;
|
|
|
|
protected:
|
|
|
|
G4Step* UpdateStepInfo(G4Step* Step);
|
|
// Update the G4Step specific attributes
|
|
// (i.e. SteppingControl, LocalEnergyDeposit, and TrueStepLength)
|
|
|
|
G4ThreeVector theMomentumDirectionChange;
|
|
// It is the vector containing the final momentum direction
|
|
// after the invoked process. The application of the change
|
|
// of the momentum direction of the particle is not done here.
|
|
// The responsibility to apply the change is up to the entity
|
|
// which invoked the process
|
|
|
|
G4ThreeVector thePolarizationChange;
|
|
// The changed (final) polarization of a given track
|
|
|
|
G4double theEnergyChange = 0.0;
|
|
// The final kinetic energy of the current track
|
|
|
|
G4double theVelocityChange = 0.0;
|
|
G4bool isVelocityChanged = false;
|
|
// The final velocity of the current track
|
|
|
|
G4ThreeVector thePositionChange;
|
|
// The changed (final) position of a given track
|
|
|
|
G4double theGlobalTime0 = 0.0;
|
|
// The global time at Initial
|
|
G4double theLocalTime0 = 0.0;
|
|
// The local time at Initial
|
|
|
|
G4double theTimeChange = 0.0;
|
|
// The change of local time of a given particle
|
|
|
|
G4double theProperTimeChange = 0.0;
|
|
// The changed (final) proper time of a given track
|
|
|
|
G4double theMassChange = 0.0;
|
|
// The Changed (final) mass of a given track
|
|
|
|
G4double theChargeChange = 0.0;
|
|
// The Changed (final) charge of a given track
|
|
|
|
G4double theMagneticMomentChange = 0.0;
|
|
// The Changed (final) MagneticMoment of a given track
|
|
};
|
|
|
|
#include "G4ParticleChange.icc"
|
|
|
|
#endif
|