Gabriele Cosmo
285 lines
10 KiB
C++
285 lines
10 KiB
C++
//
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// ********************************************************************
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// * DISCLAIMER *
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// * *
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// * The following disclaimer summarizes all the specific disclaimers *
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// * of contributors to this software. The specific disclaimers,which *
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// * govern, are listed with their locations in: *
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// * http://cern.ch/geant4/license *
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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. *
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// * *
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// * This code implementation is the intellectual property of the *
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// * GEANT4 collaboration. *
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// * By copying, distributing or modifying the Program (or any work *
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// * based on the Program) you indicate your acceptance of this *
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// * statement, and all its terms. *
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// ********************************************************************
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//
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//
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// $Id: G4VRestContinuousDiscreteProcess.hh,v 1.4.4.2 2001/06/28 20:20:11 gunter Exp $
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// GEANT4 tag $Name: $
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//
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//
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// ------------------------------------------------------------
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// GEANT 4 class header file
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//
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//
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// Class Description
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// Abstract class which defines the public behavior of
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// continuous and discrete physics interactions.
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//
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// ------------------------------------------------------------
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// New Physics scheme 8 Mar. 1997 H.Kurahige
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// ------------------------------------------------------------
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// modified 26 Mar. 1997 H.Kurahige
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// modified 16 Apr. 1997 L.Urban
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// modified AlongStepGPIL etc. 17 Dec. 1997 H.Kurashige
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// fix bugs in GetGPILSelection() 24 Jan. 1998 H.Kurashige
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// modified for new ParticleChange 12 Mar. 1998 H.Kurashige
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#ifndef G4VRestContinuousDiscreteProcess_h
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#define G4VRestContinuousDiscreteProcess_h 1
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#include "globals.hh"
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#include "G4ios.hh"
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#include "G4VProcess.hh"
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class G4VRestContinuousDiscreteProcess : public G4VProcess
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{
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// Abstract class which defines the public behavior of
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// discrete physics interactions.
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public:
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G4VRestContinuousDiscreteProcess(const G4String& ,
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G4ProcessType aType = fNotDefined );
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G4VRestContinuousDiscreteProcess(G4VRestContinuousDiscreteProcess &);
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virtual ~G4VRestContinuousDiscreteProcess();
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public :// with description
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virtual G4double PostStepGetPhysicalInteractionLength(
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const G4Track& track,
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G4double previousStepSize,
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G4ForceCondition* condition
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);
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virtual G4VParticleChange* PostStepDoIt(
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const G4Track& ,
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const G4Step&
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);
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virtual G4double AlongStepGetPhysicalInteractionLength(
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const G4Track& track,
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G4double previousStepSize,
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G4double currentMinimumStep,
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G4double& currentSafety,
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G4GPILSelection* selection
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);
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virtual G4VParticleChange* AlongStepDoIt(
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const G4Track& ,
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const G4Step&
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);
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virtual G4double AtRestGetPhysicalInteractionLength(
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const G4Track& ,
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G4ForceCondition*
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);
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virtual G4VParticleChange* AtRestDoIt(
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const G4Track& ,
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const G4Step&
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);
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protected: // with description
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virtual G4double GetMeanLifeTime(const G4Track& aTrack,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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virtual G4double GetContinuousStepLimit(const G4Track& aTrack,
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G4double previousStepSize,
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G4double currentMinimumStep,
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G4double& currentSafety
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)=0;
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private:
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// this is the returnd value of G4GPILSelection in
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// the arguments of AlongStepGPIL()
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G4GPILSelection valueGPILSelection;
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protected: // with description
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// these two methods are set/get methods for valueGPILSelection
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void SetGPILSelection(G4GPILSelection selection)
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{ valueGPILSelection = selection;};
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G4GPILSelection GetGPILSelection() const{return valueGPILSelection;};
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protected: // with description
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virtual G4double GetMeanFreePath(const G4Track& aTrack,
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G4double previousStepSize,
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G4ForceCondition* condition
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)=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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private:
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// hide default constructor and assignment operator as private
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G4VRestContinuousDiscreteProcess();
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G4VRestContinuousDiscreteProcess & operator=(const G4VRestContinuousDiscreteProcess &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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#include "G4Step.hh"
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#include "G4Track.hh"
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#include "G4MaterialTable.hh"
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#include "G4VParticleChange.hh"
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inline G4double G4VRestContinuousDiscreteProcess::AtRestGetPhysicalInteractionLength(
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const G4Track& track,
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G4ForceCondition* condition
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)
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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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currentInteractionLength = GetMeanLifeTime(track, condition);
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#ifdef G4VERBOSE
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if ((currentInteractionLength <0.0) || (verboseLevel>2)){
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G4cout << "G4VRestContinuousDiscreteProcess::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 = " << currentInteractionLength/ns << "[ns]" <<G4endl;
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}
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#endif
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return theNumberOfInteractionLengthLeft * currentInteractionLength;
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}
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inline G4VParticleChange* G4VRestContinuousDiscreteProcess::AtRestDoIt(
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const G4Track&,
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const G4Step&
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)
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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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inline G4double G4VRestContinuousDiscreteProcess::AlongStepGetPhysicalInteractionLength(
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const G4Track& track,
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G4double previousStepSize,
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G4double currentMinimumStep,
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G4double& currentSafety,
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G4GPILSelection* selection
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)
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{
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// GPILSelection is set to defaule value of CandidateForSelection
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valueGPILSelection = CandidateForSelection;
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// get Step limit proposed by the process
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G4double steplength = GetContinuousStepLimit(track,previousStepSize,currentMinimumStep, currentSafety);
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// set return value for G4GPILSelection
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*selection = valueGPILSelection;
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#ifdef G4VERBOSE
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if (verboseLevel>1){
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G4cout << "G4VRestContinuousDiscreteProcess::AlongStepGetPhysicalInteractionLength ";
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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 << "IntractionLength= " << steplength/cm <<"[cm] " <<G4endl;
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}
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#endif
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return steplength ;
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}
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inline G4VParticleChange* G4VRestContinuousDiscreteProcess::AlongStepDoIt(
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const G4Track& ,
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const G4Step&
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)
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{
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return pParticleChange;
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}
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inline G4double G4VRestContinuousDiscreteProcess::PostStepGetPhysicalInteractionLength(
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const G4Track& track,
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G4double previousStepSize,
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G4ForceCondition* condition
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)
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{
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if ( (previousStepSize <=0.0) || (theNumberOfInteractionLengthLeft<=0.0)) {
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// beggining of tracking (or just after DoIt of this process)
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ResetNumberOfInteractionLengthLeft();
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} else {
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// subtract NumberOfInteractionLengthLeft
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SubtractNumberOfInteractionLengthLeft(previousStepSize);
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if(theNumberOfInteractionLengthLeft<perMillion)
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theNumberOfInteractionLengthLeft=0.;
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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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currentInteractionLength = GetMeanFreePath(track, previousStepSize, condition);
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#ifdef G4VERBOSE
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if ((currentInteractionLength <=0.0) || (verboseLevel>2)){
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G4cout << "G4VRestContinuousDiscreteProcess::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 << "MeanFreePath = " << currentInteractionLength/cm << "[cm]" <<G4endl;
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}
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#endif
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G4double value = theNumberOfInteractionLengthLeft * currentInteractionLength;
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#ifdef G4VERBOSE
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if (verboseLevel>1){
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G4cout << "G4VRestContinuousDiscreteProcess::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/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* G4VRestContinuousDiscreteProcess::PostStepDoIt(
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const G4Track& ,
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const G4Step&
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)
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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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