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// $Id: G4VRestContinuousDiscreteProcess.hh,v 1.9 2007-11-15 04:10:18 kurasige Exp $
// GEANT4 tag $Name: not supported by cvs2svn $
//
//
// ------------------------------------------------------------
// GEANT 4 class header file
//
//
// Class Description
// Abstract class which defines the public behavior of
// continuous and discrete physics interactions.
//
// ------------------------------------------------------------
// New Physics scheme 8 Mar. 1997 H.Kurahige
// ------------------------------------------------------------
// fix bugs in GetGPILSelection() 24 Jan. 1998 H.Kurashige
// modified for new ParticleChange 12 Mar. 1998 H.Kurashige
// Fixed a bug in PostStepGetPhysicalInteractionLength
// 15 Apr. 2002 H.Kurashige
//
#ifndef G4VRestContinuousDiscreteProcess_h
#define G4VRestContinuousDiscreteProcess_h 1
#include "globals.hh"
#include "G4ios.hh"
#include "G4VProcess.hh"
class G4VRestContinuousDiscreteProcess : public G4VProcess
{
// Abstract class which defines the public behavior of
// discrete physics interactions.
public:
G4VRestContinuousDiscreteProcess(const G4String& ,
G4ProcessType aType = fNotDefined );
G4VRestContinuousDiscreteProcess(G4VRestContinuousDiscreteProcess &);
virtual ~G4VRestContinuousDiscreteProcess();
public :// with description
virtual G4double PostStepGetPhysicalInteractionLength(
const G4Track& track,
G4double previousStepSize,
G4ForceCondition* condition
);
virtual G4VParticleChange* PostStepDoIt(
const G4Track& ,
const G4Step&
);
virtual G4double AlongStepGetPhysicalInteractionLength(
const G4Track& track,
G4double previousStepSize,
G4double currentMinimumStep,
G4double& currentSafety,
G4GPILSelection* selection
);
virtual G4VParticleChange* AlongStepDoIt(
const G4Track& ,
const G4Step&
);
virtual G4double AtRestGetPhysicalInteractionLength(
const G4Track& ,
G4ForceCondition*
);
virtual G4VParticleChange* AtRestDoIt(
const G4Track& ,
const G4Step&
);
protected: // with description
virtual G4double GetMeanLifeTime(const G4Track& aTrack,G4ForceCondition* condition)=0;
// Calculates the mean life-time (i.e. for decays) of the
// particle at rest due to the occurence of the given process,
// or converts the probability of interaction (i.e. for
// annihilation) into the life-time of the particle for the
// occurence of the given process.
virtual G4double GetContinuousStepLimit(const G4Track& aTrack,
G4double previousStepSize,
G4double currentMinimumStep,
G4double& currentSafety
)=0;
private:
// this is the returnd value of G4GPILSelection in
// the arguments of AlongStepGPIL()
G4GPILSelection valueGPILSelection;
protected: // with description
// these two methods are set/get methods for valueGPILSelection
void SetGPILSelection(G4GPILSelection selection)
{ valueGPILSelection = selection;};
G4GPILSelection GetGPILSelection() const{return valueGPILSelection;};
protected: // with description
virtual G4double GetMeanFreePath(const G4Track& aTrack,
G4double previousStepSize,
G4ForceCondition* condition
)=0;
// Calculates from the macroscopic cross section a mean
// free path, the value is returned in units of distance.
private:
// hide default constructor and assignment operator as private
G4VRestContinuousDiscreteProcess();
G4VRestContinuousDiscreteProcess & operator=(const G4VRestContinuousDiscreteProcess &right);
};
// -----------------------------------------
// inlined function members implementation
// -----------------------------------------
#include "G4Step.hh"
#include "G4Track.hh"
#include "G4MaterialTable.hh"
#include "G4VParticleChange.hh"
inline G4double G4VRestContinuousDiscreteProcess::AtRestGetPhysicalInteractionLength(
const G4Track& track,
G4ForceCondition* condition
)
{
// beggining of tracking
ResetNumberOfInteractionLengthLeft();
// condition is set to "Not Forced"
*condition = NotForced;
// get mean life time
currentInteractionLength = GetMeanLifeTime(track, condition);
#ifdef G4VERBOSE
if ((currentInteractionLength <0.0) || (verboseLevel>2)){
G4cout << "G4VRestContinuousDiscreteProcess::AtRestGetPhysicalInteractionLength ";
G4cout << "[ " << GetProcessName() << "]" <<G4endl;
track.GetDynamicParticle()->DumpInfo();
G4cout << " in Material " << track.GetMaterial()->GetName() <<G4endl;
G4cout << "MeanLifeTime = " << currentInteractionLength/ns << "[ns]" <<G4endl;
}
#endif
return theNumberOfInteractionLengthLeft * currentInteractionLength;
}
inline G4VParticleChange* G4VRestContinuousDiscreteProcess::AtRestDoIt(
const G4Track&,
const G4Step&
)
{
// clear NumberOfInteractionLengthLeft
ClearNumberOfInteractionLengthLeft();
return pParticleChange;
}
inline G4double G4VRestContinuousDiscreteProcess::AlongStepGetPhysicalInteractionLength(
const G4Track& track,
G4double previousStepSize,
G4double currentMinimumStep,
G4double& currentSafety,
G4GPILSelection* selection
)
{
// GPILSelection is set to defaule value of CandidateForSelection
valueGPILSelection = CandidateForSelection;
// get Step limit proposed by the process
G4double steplength = GetContinuousStepLimit(track,previousStepSize,currentMinimumStep, currentSafety);
// set return value for G4GPILSelection
*selection = valueGPILSelection;
#ifdef G4VERBOSE
if (verboseLevel>1){
G4cout << "G4VRestContinuousDiscreteProcess::AlongStepGetPhysicalInteractionLength ";
G4cout << "[ " << GetProcessName() << "]" <<G4endl;
track.GetDynamicParticle()->DumpInfo();
G4cout << " in Material " << track.GetMaterial()->GetName() <<G4endl;
G4cout << "IntractionLength= " << steplength/cm <<"[cm] " <<G4endl;
}
#endif
return steplength ;
}
inline G4VParticleChange* G4VRestContinuousDiscreteProcess::AlongStepDoIt(
const G4Track& ,
const G4Step&
)
{
return pParticleChange;
}
inline G4double G4VRestContinuousDiscreteProcess::PostStepGetPhysicalInteractionLength(
const G4Track& track,
G4double previousStepSize,
G4ForceCondition* condition
)
{
if ( (previousStepSize < 0.0) || (theNumberOfInteractionLengthLeft<=0.0)) {
// beggining of tracking (or just after DoIt of this process)
ResetNumberOfInteractionLengthLeft();
} else if ( previousStepSize > 0.0) {
// subtract NumberOfInteractionLengthLeft
SubtractNumberOfInteractionLengthLeft(previousStepSize);
} else {
// zero step
// DO NOTHING
}
// condition is set to "Not Forced"
*condition = NotForced;
// get mean free path
currentInteractionLength = GetMeanFreePath(track, previousStepSize, condition);
G4double value;
if (currentInteractionLength <DBL_MAX) {
value = theNumberOfInteractionLengthLeft * currentInteractionLength;
} else {
value = DBL_MAX;
}
#ifdef G4VERBOSE
if (verboseLevel>1){
G4cout << "G4VRestContinuousDiscreteProcess::PostStepGetPhysicalInteractionLength ";
G4cout << "[ " << GetProcessName() << "]" <<G4endl;
track.GetDynamicParticle()->DumpInfo();
G4cout << " in Material " << track.GetMaterial()->GetName() <<G4endl;
G4cout << "InteractionLength= " << value/cm <<"[cm] " <<G4endl;
}
#endif
return value;
}
inline G4VParticleChange* G4VRestContinuousDiscreteProcess::PostStepDoIt(
const G4Track& ,
const G4Step&
)
{
// clear NumberOfInteractionLengthLeft
ClearNumberOfInteractionLengthLeft();
return pParticleChange;
}
#endif