Gabriele Cosmo
199 lines
6.3 KiB
C++
199 lines
6.3 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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//
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// $Id$
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//
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// $Id:
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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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// rest + 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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#ifndef G4IVRestDiscreteProcess_h
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#define G4IVRestDiscreteProcess_h 1
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#include <CLHEP/Units/SystemOfUnits.h>
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#include "globals.hh"
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#include "G4ios.hh"
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#include "Randomize.hh"
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#include "G4VProcess.hh"
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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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class G4IVRestDiscreteProcess : public G4VProcess
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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: // with description
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// constructors
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G4IVRestDiscreteProcess(const G4String& ,
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G4ProcessType aType = fNotDefined );
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G4IVRestDiscreteProcess(G4IVRestDiscreteProcess &);
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public:
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virtual ~G4IVRestDiscreteProcess();
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public: // with description
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// GPIL and DoIt methods derived from G4VProcess
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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 AtRestGetPhysicalInteractionLength(
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const G4Track& ,
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G4ForceCondition*
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);
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G4VParticleChange* AtRestDoIt(
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const G4Track& ,
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const G4Step&
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);
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// no operation in AlongStepDoIt
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virtual G4double AlongStepGetPhysicalInteractionLength(
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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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){ return -1.0; }
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// no operation in AlongStepDoIt
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virtual G4VParticleChange* AlongStepDoIt(
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const G4Track& ,
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const G4Step&
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) {return 0;}
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protected:// with description
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virtual void SubtractNumberOfInteractionLengthLeft(
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G4double previousStepSize) ;
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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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private:
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// hide default constructor and assignment operator as private
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G4IVRestDiscreteProcess();
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G4IVRestDiscreteProcess & operator=(const G4IVRestDiscreteProcess &right);
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protected:
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G4PhysicsTable* theNlambdaTable ;
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G4PhysicsTable* theInverseNlambdaTable ;
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const G4double BIGSTEP;
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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
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void G4IVRestDiscreteProcess::SubtractNumberOfInteractionLengthLeft(
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G4double )
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{
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// dummy routine
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;
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}
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inline G4VParticleChange* G4IVRestDiscreteProcess::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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// reset NumberOfInteractionLengthLeft
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ClearNumberOfInteractionLengthLeft();
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return pParticleChange;
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}
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inline G4double G4IVRestDiscreteProcess::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 << "G4IVRestDiscreteProcess::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/CLHEP::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* G4IVRestDiscreteProcess::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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#endif
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