Gabriele Cosmo
229 lines
8.3 KiB
C++
229 lines
8.3 KiB
C++
//
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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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// $Id: G4VITRestDiscreteProcess.hh 100802 2016-11-02 14:55:27Z gcosmo $
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//
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/// \brief Identical to G4VRestDiscreteProcess with dependency from G4VITProcess
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//
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// WARNING : This class is released as a prototype.
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// It might strongly evolve or even disapear in the next releases.
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//
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// Author: Mathieu Karamitros
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// The code is developed in the framework of the ESA AO7146
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//
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// We would be very happy hearing from you, send us your feedback! :)
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//
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// In order for Geant4-DNA to be maintained and still open-source,
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// article citations are crucial.
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// If you use Geant4-DNA chemistry and you publish papers about your software,
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// in addition to the general paper on Geant4-DNA:
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//
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// Int. J. Model. Simul. Sci. Comput. 1 (2010) 157–178
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//
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// we would be very happy if you could please also cite the following
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// reference papers on chemistry:
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//
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// J. Comput. Phys. 274 (2014) 841-882
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// Prog. Nucl. Sci. Tec. 2 (2011) 503-508
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#ifndef G4VITRESTDISCRETEPROCESS_H
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#define G4VITRESTDISCRETEPROCESS_H
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#include <CLHEP/Units/SystemOfUnits.h>
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#include "G4VITProcess.hh"
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/**
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* Identical to G4VRestDiscreteProcess with dependency from G4VITProcess
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*/
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class G4VITRestDiscreteProcess : public G4VITProcess
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{
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// Abstract class which defines the public behavior of
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// rest + discrete physics interactions.
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public:
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G4VITRestDiscreteProcess(const G4String&, G4ProcessType aType = fNotDefined);
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G4VITRestDiscreteProcess(const G4VITRestDiscreteProcess &);
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virtual ~G4VITRestDiscreteProcess();
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public:
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// with description
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virtual G4double
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PostStepGetPhysicalInteractionLength(const G4Track& track,
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G4double previousStepSize,
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G4ForceCondition* condition);
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virtual G4VParticleChange* PostStepDoIt(const G4Track&, const G4Step&);
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virtual G4double AtRestGetPhysicalInteractionLength(const G4Track&,
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G4ForceCondition*);
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virtual G4VParticleChange* AtRestDoIt(const G4Track&, const G4Step&);
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// no operation in AlongStepDoIt
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virtual G4double AlongStepGetPhysicalInteractionLength(const G4Track&,
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G4double,
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G4double,
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G4double&,
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G4GPILSelection*)
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{
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return -1.0;
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}
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// no operation in AlongStepDoIt
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virtual G4VParticleChange* AlongStepDoIt(const G4Track&, const G4Step&)
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{
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return 0;
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}
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protected:
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// with description
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virtual G4double GetMeanFreePath(const G4Track& aTrack,
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G4double previousStepSize,
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G4ForceCondition* condition)=0;
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// Calculates from the macroscopic cross section a mean
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// free path, the value is returned in units of distance.
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virtual G4double GetMeanLifeTime(const G4Track& aTrack,
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G4ForceCondition* condition)=0;
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// Calculates the mean life-time (i.e. for decays) of the
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// particle at rest due to the occurence of the given process,
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// or converts the probability of interaction (i.e. for
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// annihilation) into the life-time of the particle for the
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// occurence of the given process.
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protected:
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// hide default constructor and assignment operator as private
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G4VITRestDiscreteProcess();
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G4VITRestDiscreteProcess & operator=(const G4VITRestDiscreteProcess &right);
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};
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// -----------------------------------------
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// inlined function members implementation
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// -----------------------------------------
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inline G4double G4VITRestDiscreteProcess::PostStepGetPhysicalInteractionLength(const G4Track& track,
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G4double previousStepSize,
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G4ForceCondition* condition)
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{
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if((previousStepSize < 0.0) || (fpState->theNumberOfInteractionLengthLeft
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<= 0.0))
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{
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// beggining of tracking (or just after DoIt of this process)
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ResetNumberOfInteractionLengthLeft();
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}
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else if(previousStepSize > 0.0)
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{
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// subtract NumberOfInteractionLengthLeft
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SubtractNumberOfInteractionLengthLeft(previousStepSize);
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}
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else
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{
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// zero step
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// DO NOTHING
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}
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// condition is set to "Not Forced"
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*condition = NotForced;
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// get mean free path
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fpState->currentInteractionLength = GetMeanFreePath(track,
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previousStepSize,
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condition);
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G4double value;
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if(fpState->currentInteractionLength < DBL_MAX)
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{
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value = fpState->theNumberOfInteractionLengthLeft * (fpState->currentInteractionLength);
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}
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else
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{
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value = DBL_MAX;
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}
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#ifdef G4VERBOSE
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if(verboseLevel > 1)
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{
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G4cout << "G4VITRestDiscreteProcess::PostStepGetPhysicalInteractionLength ";
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G4cout << "[ " << GetProcessName() << "]" << G4endl;
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track.GetDynamicParticle()->DumpInfo();
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G4cout << " in Material " << track.GetMaterial()->GetName() << G4endl;
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G4cout << "InteractionLength= " << value / CLHEP::cm << "[cm] " << G4endl;
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}
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#endif
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return value;
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}
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inline G4VParticleChange* G4VITRestDiscreteProcess::PostStepDoIt(const G4Track&,
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const G4Step&)
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{
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// reset NumberOfInteractionLengthLeft
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ClearNumberOfInteractionLengthLeft();
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return pParticleChange;
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}
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inline G4double G4VITRestDiscreteProcess::AtRestGetPhysicalInteractionLength(const G4Track& track,
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G4ForceCondition* condition)
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{
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// beggining of tracking
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ResetNumberOfInteractionLengthLeft();
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// condition is set to "Not Forced"
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*condition = NotForced;
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// get mean life time
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fpState->currentInteractionLength = GetMeanLifeTime(track, condition);
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#ifdef G4VERBOSE
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if((fpState->currentInteractionLength < 0.0) || (verboseLevel > 2))
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{
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G4cout << "G4VITRestDiscreteProcess::AtRestGetPhysicalInteractionLength ";
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G4cout << "[ " << GetProcessName() << "]" << G4endl;
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track.GetDynamicParticle()->DumpInfo();
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G4cout << " in Material " << track.GetMaterial()->GetName() << G4endl;
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G4cout << "MeanLifeTime = " << fpState->currentInteractionLength / CLHEP::ns
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<< "[ns]" << G4endl;
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}
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#endif
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return fpState->theNumberOfInteractionLengthLeft
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* (fpState->currentInteractionLength);
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}
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inline G4VParticleChange* G4VITRestDiscreteProcess::AtRestDoIt(const G4Track&,
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const G4Step&)
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{
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// clear NumberOfInteractionLengthLeft
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ClearNumberOfInteractionLengthLeft();
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return pParticleChange;
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}
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#endif
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