Gabriele Cosmo
195 lines
6.6 KiB
C++
195 lines
6.6 KiB
C++
//
|
|
// ********************************************************************
|
|
// * DISCLAIMER *
|
|
// * *
|
|
// * The following disclaimer summarizes all the specific disclaimers *
|
|
// * of contributors to this software. The specific disclaimers,which *
|
|
// * govern, are listed with their locations in: *
|
|
// * http://cern.ch/geant4/license *
|
|
// * *
|
|
// * 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. *
|
|
// * *
|
|
// * This code implementation is the intellectual property of the *
|
|
// * GEANT4 collaboration. *
|
|
// * By copying, distributing or modifying the Program (or any work *
|
|
// * based on the Program) you indicate your acceptance of this *
|
|
// * statement, and all its terms. *
|
|
// ********************************************************************
|
|
//
|
|
|
|
//
|
|
// $Id: G4VDiscreteProcess.hh,v 1.7 2003/03/25 06:22:23 kurasige Exp $
|
|
// GEANT4 tag $Name: geant4-06-00 $
|
|
//
|
|
//
|
|
// ------------------------------------------------------------
|
|
// GEANT 4 class header file
|
|
//
|
|
// History: first implementation, based on object model of
|
|
// 2nd December 1995, G.Cosmo
|
|
// add G4VDiscreteProcess(const G4String&) 24 Jul 1996, Hisaya kurashige
|
|
//
|
|
// Class Description
|
|
// Abstract class which defines the public behavior of
|
|
// discrete physics interactions.
|
|
//
|
|
// ------------------------------------------------------------
|
|
// New Physics scheme 18 Dec. 1996 H.Kurahige
|
|
// ------------------------------------------------------------
|
|
// modified for new ParticleChange 12 Mar. 1998 H.Kurashige
|
|
// Fixed a bug in PostStepGetPhysicalInteractionLength
|
|
// 15 Apr. 2002 H.Kurashige
|
|
//
|
|
|
|
#ifndef G4VDiscreteProcess_h
|
|
#define G4VDiscreteProcess_h 1
|
|
|
|
#include "globals.hh"
|
|
#include "G4ios.hh"
|
|
|
|
#include "G4VProcess.hh"
|
|
|
|
class G4VDiscreteProcess : public G4VProcess
|
|
{
|
|
// Abstract class which defines the public behavior of
|
|
// discrete physics interactions.
|
|
public:
|
|
|
|
G4VDiscreteProcess(const G4String& ,
|
|
G4ProcessType aType = fNotDefined );
|
|
G4VDiscreteProcess(G4VDiscreteProcess &);
|
|
|
|
virtual ~G4VDiscreteProcess();
|
|
|
|
public :// with description
|
|
virtual G4double PostStepGetPhysicalInteractionLength(
|
|
const G4Track& track,
|
|
G4double previousStepSize,
|
|
G4ForceCondition* condition
|
|
);
|
|
|
|
virtual G4VParticleChange* PostStepDoIt(
|
|
const G4Track& ,
|
|
const G4Step&
|
|
);
|
|
|
|
// no operation in AtRestDoIt and AlongStepDoIt
|
|
virtual G4double AlongStepGetPhysicalInteractionLength(
|
|
const G4Track&,
|
|
G4double ,
|
|
G4double ,
|
|
G4double& ,
|
|
G4GPILSelection*
|
|
){ return -1.0; };
|
|
|
|
virtual G4double AtRestGetPhysicalInteractionLength(
|
|
const G4Track& ,
|
|
G4ForceCondition*
|
|
) { return -1.0; };
|
|
|
|
// no operation in AtRestDoIt and AlongStepDoIt
|
|
virtual G4VParticleChange* AtRestDoIt(
|
|
const G4Track& ,
|
|
const G4Step&
|
|
) {return 0;};
|
|
|
|
virtual G4VParticleChange* AlongStepDoIt(
|
|
const G4Track& ,
|
|
const G4Step&
|
|
) {return 0;};
|
|
|
|
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
|
|
G4VDiscreteProcess();
|
|
G4VDiscreteProcess & operator=(const G4VDiscreteProcess &right);
|
|
|
|
};
|
|
|
|
// -----------------------------------------
|
|
// inlined function members implementation
|
|
// -----------------------------------------
|
|
#include "G4Step.hh"
|
|
#include "G4Track.hh"
|
|
#include "G4MaterialTable.hh"
|
|
#include "G4VParticleChange.hh"
|
|
|
|
inline G4double G4VDiscreteProcess::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 {
|
|
// subtract NumberOfInteractionLengthLeft
|
|
SubtractNumberOfInteractionLengthLeft(previousStepSize);
|
|
if(theNumberOfInteractionLengthLeft<0.)
|
|
theNumberOfInteractionLengthLeft=perMillion;
|
|
}
|
|
|
|
// condition is set to "Not Forced"
|
|
*condition = NotForced;
|
|
|
|
// get mean free path
|
|
currentInteractionLength = GetMeanFreePath(track, previousStepSize, condition);
|
|
|
|
#ifdef G4VERBOSE
|
|
if ((currentInteractionLength <=0.0) || (verboseLevel>2)){
|
|
G4cout << "G4VDiscreteProcess::PostStepGetPhysicalInteractionLength ";
|
|
G4cout << "[ " << GetProcessName() << "]" <<G4endl;
|
|
track.GetDynamicParticle()->DumpInfo();
|
|
G4cout << " in Material " << track.GetMaterial()->GetName() <<G4endl;
|
|
G4cout << "MeanFreePath = " << currentInteractionLength/cm << "[cm]" <<G4endl;
|
|
}
|
|
#endif
|
|
|
|
|
|
G4double value;
|
|
if (currentInteractionLength <DBL_MAX) {
|
|
value = theNumberOfInteractionLengthLeft * currentInteractionLength;
|
|
} else {
|
|
value = DBL_MAX;
|
|
}
|
|
#ifdef G4VERBOSE
|
|
if (verboseLevel>1){
|
|
G4cout << "G4VDiscreteProcess::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* G4VDiscreteProcess::PostStepDoIt(
|
|
const G4Track& ,
|
|
const G4Step&
|
|
)
|
|
{
|
|
// clear NumberOfInteractionLengthLeft
|
|
ClearNumberOfInteractionLengthLeft();
|
|
|
|
return pParticleChange;
|
|
}
|
|
|
|
|
|
#endif
|
|
|
|
|
|
|