Gabriele Cosmo
301 lines
10 KiB
C++
301 lines
10 KiB
C++
// This code implementation is the intellectual property of
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// the GEANT4 collaboration.
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//
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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 statement,
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// and all its terms.
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//
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// $Id: G4PAIenergyLoss.hh,v 1.3.2.1 1999/12/07 20:50:50 gunter Exp $
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// GEANT4 tag $Name: geant4-01-00 $
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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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// For information related to this code contact:
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// CERN, IT Division, ASD group
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// History: first implementation, based on object model of
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// 2nd December 1995, G.Cosmo
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// ---------- G4PAIenergyLoss physics process -----------
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// by V. Grichine, 30 Nov 97
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// ************************************************************
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// It is the first implementation of the NEW UNIFIED ENERGY LOSS PROCESS.
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// It calculates the continuous energy loss for charged hadrons.
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// Processes giving contribution to the continuous loss :
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// ionisation (= cont.ion.loss + delta ray production)
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// can be added more easily ..........
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// This class creates static proton/antiproton dE/dx and range tables ,
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// which tables can be used by other processes.
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// The energy loss for other charged hadrons is calculated from the p/pbar
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// tables with scaled kinetic energy.
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//*******************************************************************************
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//* It is assumed that the cut in range is the same for all the charged hadrons!*
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//*******************************************************************************
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// corrected by V. Grichine on 24/11/97
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// corrected by L. Urban on 27/05/98 (other corrections come soon!)
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// ------------------------------------------------------------
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#ifndef G4PAIenergyLoss_h
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#define G4PAIenergyLoss_h 1
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#include "G4ios.hh"
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#include <fstream.h>
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#include <iomanip.h>
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#include "g4rw/tpordvec.h"
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#include "globals.hh"
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#include "Randomize.hh"
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#include "G4VContinuousDiscreteProcess.hh"
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#include "G4MaterialTable.hh"
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#include "G4ElementTable.hh"
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#include "G4ElementVector.hh"
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#include "G4VParticleChange.hh"
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#include "globals.hh"
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#include "G4Track.hh"
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#include "G4Step.hh"
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#include "G4Electron.hh"
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#include "G4Proton.hh"
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#include "G4AntiProton.hh"
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#include "G4PhysicsLogVector.hh"
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#include "G4PhysicsLinearVector.hh"
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#include "G4PhysicsFreeVector.hh"
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class G4PAIenergyLoss : public G4VContinuousDiscreteProcess
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{
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public:
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G4PAIenergyLoss(const G4String& );
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G4PAIenergyLoss(G4PAIenergyLoss &);
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~G4PAIenergyLoss();
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G4bool IsApplicable(const G4ParticleDefinition&);
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private:
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// hide assignment operator
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G4PAIenergyLoss & operator=(const G4PAIenergyLoss &right);
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public:
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virtual G4double
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GetContinuousStepLimit( const G4Track& track,
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G4double previousStepSize,
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G4double currentMinimumStep,
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G4double& currentSafety )= 0 ;
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/* *************************
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G4VParticleChange* AlongStepDoIt(const G4Track& track ,const G4Step& Step)
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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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**************************** */
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virtual G4double GetMeanFreePath(
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const G4Track& track,
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G4double previousStepSize,
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G4ForceCondition* condition
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) = 0 ;
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virtual G4VParticleChange* PostStepDoIt(const G4Track& track,const G4Step& Step) = 0 ;
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// Build energy loss table (total continuous energy loss)
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static void BuildDEDXTable(const G4ParticleDefinition& aParticleType);
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//----------------------------------------------
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// public functions .........................
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// get the number of processes contributing to the cont.energy loss
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static G4int GetNUMBEROFPROCESSES() { return NUMBEROFPROCESSES; };
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// set the number of processes contributing to the cont.energy loss
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static void SetNUMBEROFPROCESSES(G4int number)
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{ NUMBEROFPROCESSES=number ; };
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// Increment the number of processes contributing to the cont.energy loss
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static void PlusNUMBEROFPROCESSES()
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{ NUMBEROFPROCESSES++ ; };
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// decrement the number of processes contributing to the cont.energy loss
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static void MinusNUMBEROFPROCESSES()
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{ NUMBEROFPROCESSES-- ; };
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//*****************************************************************************
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//
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G4double GetcurrentInteractionLength() const { return currentInteractionLength; } ;
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// returns the actual dE/dx in internal GEANT4 units
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G4double GetdEdx() const { return fdEdx; };
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// returns the actual range of the particle
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G4double GetRangeNow() const { return fRangeNow; } ;
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// returns the mean energy loss (i.e. the loss
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// without fluctuations
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G4double GetMeanLoss() const { return fMeanLoss; } ;
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// don't use!
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G4double OldGetRange(const G4DynamicParticle *aParticle,
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G4Material *aMaterial);
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G4double GetConstraints(const G4DynamicParticle *aParticle,
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G4Material *aMaterial);
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// static
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G4PhysicsTable* GetPAItransferBank(){ return fPAItransferBank ; } ;
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static G4double GetMaxKineticEnergy() { return HighestKineticEnergy ; } ;
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static G4double GetMinKineticEnergy() { return LowestKineticEnergy ; } ;
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static G4int GetBinNumber() { return TotBin ; } ;
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protected:
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// fRangeNow is the actual range of the particle
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// computed in GetConstraints
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G4double fRangeNow ;
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// fMeanLoss is the energyloss without fluctuation
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// computed in AlongStepDoIt ;
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G4double fMeanLoss ;
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G4PhysicsTable* theLossTable ;
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static G4PhysicsTable* theDEDXpTable ;
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static G4PhysicsTable* theDEDXpbarTable ;
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static G4PhysicsTable* theRangepTable ;
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static G4PhysicsTable* theRangepbarTable ;
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static G4PhysicsTable* theInverseRangepTable ;
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static G4PhysicsTable* theInverseRangepbarTable ;
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static G4PhysicsTable* theLabTimepTable ;
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static G4PhysicsTable* theLabTimepbarTable ;
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static G4PhysicsTable* theProperTimepTable ;
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static G4PhysicsTable* theProperTimepbarTable ;
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// bank of PAI energy transfer data
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// static
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G4PhysicsTable* fPAItransferBank ;
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// processes inherited from G4hEnergyLoss
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// register themselves in the static array Recorder
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// nb of contributing processes = NUMBEROFPROCESSES
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static G4int NUMBEROFPROCESSES ;
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static G4PhysicsTable** RecorderOfpProcess;
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static G4PhysicsTable** RecorderOfpbarProcess;
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static G4int CounterOfpProcess ;
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static G4int CounterOfpbarProcess ;
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private:
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// private functions ..................................
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static void BuildRangeTable(const G4ParticleDefinition& aParticleType);
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static void BuildRangeVector(G4int materialIndex,
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G4PhysicsLogVector* rangeVector);
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static G4double RangeIntLin(G4PhysicsVector* physicsVector,G4int nbin);
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static G4double RangeIntLog(G4PhysicsVector* physicsVector,G4int nbin);
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static void BuildRangeCoeffATable(const G4ParticleDefinition& aParticleType);
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static void BuildRangeCoeffBTable(const G4ParticleDefinition& aParticleType);
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static void BuildRangeCoeffCTable(const G4ParticleDefinition& aParticleType);
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private:
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static G4PhysicsTable* theDEDXTable;
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// G4PhysicsTable* theRangeTable;
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// private data members ...............................
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// fdEdx=(-dE/dx)
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// computed in GetConstraints at every call;
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// it can be used by other processes ( Cherenkov, ...)
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G4double fdEdx;
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// EnergyBinNumber,RangeCoeffA,... are needed to compute range
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G4int EnergyBinNumber ;
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G4double RangeCoeffA,RangeCoeffB,RangeCoeffC ;
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//................................................................
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static G4PhysicsTable* thepRangeCoeffATable;
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static G4PhysicsTable* thepRangeCoeffBTable;
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static G4PhysicsTable* thepRangeCoeffCTable;
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static G4PhysicsTable* thepbarRangeCoeffATable;
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static G4PhysicsTable* thepbarRangeCoeffBTable;
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static G4PhysicsTable* thepbarRangeCoeffCTable;
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//................................................................
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// G4PhysicsTable* theRangeCoeffATable;
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// G4PhysicsTable* theRangeCoeffBTable;
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// G4PhysicsTable* theRangeCoeffCTable;
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// dToverTini is the maximum allowed relative energy loss in one Step
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// ( set in this class for the moment)
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const G4double dToverTini;
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// LowestKineticEnergy = lower limit of particle kinetic energy
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// HighestKineticEnergy = upper limit of particle kinetic energy
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// TotBin = number of bins calculated in BuildPhysicsTable
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// from LowestKineticEnergy,HighestKineticEnergy and
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// dToverTini
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// ---------in the energy loss/range tables-------------------
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static const G4double LowestKineticEnergy;
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static const G4double HighestKineticEnergy;
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static G4int TotBin;
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static G4double RTable,LOGRTable; // LOGRTable=log(HighestKineticEnergy
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// /LowestKineticEnergy)/TotBin
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// RTable = exp(LOGRTable)
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// variables for the integration routines
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static G4double Mass,taulow,tauhigh,ltaulow,ltauhigh;
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// cut in range
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static G4double CutInRange;
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// cuts in kinetic energy ........
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G4double* ParticleCutInKineticEnergy ;
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G4double ParticleCutInKineticEnergyNow ;
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// ...............
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const G4Electron* theElectron;
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const G4Proton* theProton;
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const G4AntiProton* theAntiProton;
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// data members to speed up the fluctuation calculation
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G4Material *lastMaterial ;
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G4double f1Fluct,f2Fluct,e1Fluct,e2Fluct,rateFluct,ipotFluct;
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G4double e1LogFluct,e2LogFluct,ipotLogFluct;
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const G4double MaxExcitationNumber ;
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const G4double probLimFluct ;
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const long nmaxDirectFluct,nmaxCont1,nmaxCont2 ;
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};
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#include "G4PAIenergyLoss.icc"
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#endif
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