Gabriele Cosmo
227 lines
8.9 KiB
C++
227 lines
8.9 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. *
|
|
// ********************************************************************
|
|
//
|
|
//
|
|
// $Id: G4Transportation.hh 87829 2015-01-14 17:19:59Z gcosmo $
|
|
//
|
|
//
|
|
// ------------------------------------------------------------
|
|
// GEANT 4 include file implementation
|
|
// ------------------------------------------------------------
|
|
//
|
|
// Class description:
|
|
//
|
|
// G4Transportation is a process responsible for the transportation of
|
|
// a particle, i.e. the geometrical propagation encountering the
|
|
// geometrical sub-volumes of the detectors.
|
|
// It is also tasked with part of updating the "safety".
|
|
|
|
// =======================================================================
|
|
// Created: 19 March 1997, J. Apostolakis
|
|
// =======================================================================
|
|
#ifndef G4Transportation_hh
|
|
#define G4Transportation_hh 1
|
|
|
|
#include "G4VProcess.hh"
|
|
#include "G4FieldManager.hh"
|
|
|
|
#include "G4Navigator.hh"
|
|
#include "G4TransportationManager.hh"
|
|
#include "G4PropagatorInField.hh"
|
|
#include "G4Track.hh"
|
|
#include "G4Step.hh"
|
|
#include "G4ParticleChangeForTransport.hh"
|
|
class G4SafetyHelper;
|
|
class G4CoupledTransportation;
|
|
|
|
class G4Transportation : public G4VProcess
|
|
{
|
|
// Concrete class that does the geometrical transport
|
|
|
|
public: // with description
|
|
|
|
G4Transportation( G4int verbosityLevel= 1);
|
|
~G4Transportation();
|
|
|
|
G4double AlongStepGetPhysicalInteractionLength(
|
|
const G4Track& track,
|
|
G4double previousStepSize,
|
|
G4double currentMinimumStep,
|
|
G4double& currentSafety,
|
|
G4GPILSelection* selection
|
|
);
|
|
|
|
G4VParticleChange* AlongStepDoIt(
|
|
const G4Track& track,
|
|
const G4Step& stepData
|
|
);
|
|
|
|
G4VParticleChange* PostStepDoIt(
|
|
const G4Track& track,
|
|
const G4Step& stepData
|
|
);
|
|
// Responsible for the relocation.
|
|
|
|
G4double PostStepGetPhysicalInteractionLength(
|
|
const G4Track& ,
|
|
G4double previousStepSize,
|
|
G4ForceCondition* pForceCond
|
|
);
|
|
// Forces the PostStepDoIt action to be called,
|
|
// but does not limit the step.
|
|
|
|
G4bool FieldExertedForce() { return fFieldExertedForce; }
|
|
|
|
G4PropagatorInField* GetPropagatorInField();
|
|
void SetPropagatorInField( G4PropagatorInField* pFieldPropagator);
|
|
// Access/set the assistant class that Propagate in a Field.
|
|
|
|
inline void SetVerboseLevel( G4int verboseLevel );
|
|
inline G4int GetVerboseLevel() const;
|
|
// Level of warnings regarding eg energy conservation
|
|
// in field integration.
|
|
|
|
inline G4double GetThresholdWarningEnergy() const;
|
|
inline G4double GetThresholdImportantEnergy() const;
|
|
inline G4int GetThresholdTrials() const;
|
|
|
|
inline void SetThresholdWarningEnergy( G4double newEnWarn );
|
|
inline void SetThresholdImportantEnergy( G4double newEnImp );
|
|
inline void SetThresholdTrials(G4int newMaxTrials );
|
|
|
|
// Get/Set parameters for killing loopers:
|
|
// Above 'important' energy a 'looping' particle in field will
|
|
// *NOT* be abandoned, except after fThresholdTrials attempts.
|
|
// Below Warning energy, no verbosity for looping particles is issued
|
|
|
|
inline G4double GetMaxEnergyKilled() const;
|
|
inline G4double GetSumEnergyKilled() const;
|
|
inline void ResetKilledStatistics( G4int report = 1);
|
|
// Statistics for tracks killed (currently due to looping in field)
|
|
|
|
inline void EnableShortStepOptimisation(G4bool optimise=true);
|
|
// Whether short steps < safety will avoid to call Navigator (if field=0)
|
|
|
|
static G4bool EnableUseMagneticMoment(G4bool useMoment=true);
|
|
// Whether to deflect particles with force due to magnetic moment
|
|
|
|
public: // without description
|
|
|
|
G4double AtRestGetPhysicalInteractionLength(
|
|
const G4Track& ,
|
|
G4ForceCondition*
|
|
) { return -1.0; };
|
|
// No operation in AtRestDoIt.
|
|
|
|
G4VParticleChange* AtRestDoIt(
|
|
const G4Track& ,
|
|
const G4Step&
|
|
) {return 0;};
|
|
// No operation in AtRestDoIt.
|
|
|
|
void StartTracking(G4Track* aTrack);
|
|
// Reset state for new (potentially resumed) track
|
|
|
|
protected:
|
|
|
|
G4bool DoesGlobalFieldExist();
|
|
// Checks whether a field exists for the "global" field manager.
|
|
|
|
private:
|
|
|
|
G4Navigator* fLinearNavigator;
|
|
G4PropagatorInField* fFieldPropagator;
|
|
// The Propagators used to transport the particle
|
|
|
|
// G4FieldManager* fGlobalFieldMgr; // Used MagneticField CC
|
|
// Field Manager for the whole Detector
|
|
|
|
G4ThreeVector fTransportEndPosition;
|
|
G4ThreeVector fTransportEndMomentumDir;
|
|
G4double fTransportEndKineticEnergy;
|
|
G4ThreeVector fTransportEndSpin;
|
|
G4bool fMomentumChanged;
|
|
G4bool fEndGlobalTimeComputed;
|
|
G4double fCandidateEndGlobalTime;
|
|
// The particle's state after this Step, Store for DoIt
|
|
|
|
G4bool fParticleIsLooping;
|
|
G4bool fNewTrack; // Flag from StartTracking
|
|
G4bool fFirstStepInVolume;
|
|
G4bool fLastStepInVolume; // Last step - almost same as next flag
|
|
// (temporary redundancy for checking)
|
|
G4bool fGeometryLimitedStep; // Flag to determine whether a boundary was reached.
|
|
|
|
G4bool fFieldExertedForce; // During current step
|
|
|
|
G4TouchableHandle fCurrentTouchableHandle;
|
|
|
|
G4ThreeVector fPreviousSftOrigin;
|
|
G4double fPreviousSafety;
|
|
// Remember last safety origin & value.
|
|
|
|
G4ParticleChangeForTransport fParticleChange;
|
|
// New ParticleChange
|
|
|
|
G4double fEndPointDistance;
|
|
|
|
// Thresholds for looping particles:
|
|
//
|
|
G4double fThreshold_Warning_Energy; // Warn above this energy
|
|
G4double fThreshold_Important_Energy; // Hesitate above this
|
|
G4int fThresholdTrials; // for this no of trials
|
|
// Above 'important' energy a 'looping' particle in field will
|
|
// *NOT* be abandoned, except after fThresholdTrials attempts.
|
|
|
|
// Counter for steps in which particle reports 'looping',
|
|
// if it is above 'Important' Energy
|
|
G4int fNoLooperTrials;
|
|
// Statistics for tracks abandoned
|
|
G4double fSumEnergyKilled;
|
|
G4double fMaxEnergyKilled;
|
|
|
|
// Whether to avoid calling G4Navigator for short step ( < safety)
|
|
// If using it, the safety estimate for endpoint will likely be smaller.
|
|
G4bool fShortStepOptimisation;
|
|
|
|
G4SafetyHelper* fpSafetyHelper; // To pass it the safety value obtained
|
|
|
|
// Verbosity
|
|
G4int fVerboseLevel;
|
|
// Verbosity level for warnings
|
|
// eg about energy non-conservation in magnetic field.
|
|
|
|
// Whether to track state change from magnetic moment in a B-field
|
|
|
|
private:
|
|
friend class G4CoupledTransportation;
|
|
static G4bool fUseMagneticMoment;
|
|
|
|
};
|
|
|
|
#include "G4Transportation.icc"
|
|
|
|
#endif
|