Gabriele Cosmo
228 lines
8.0 KiB
C++
228 lines
8.0 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: G4VMuEnergyLoss.hh,v 1.7 2001/10/29 13:53:18 maire Exp $
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// GEANT4 tag $Name: geant4-05-00 $
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// -------------------------------------------------------------------
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// GEANT 4 class header file
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//
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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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// ---------- G4VMuEnergyLoss physics process -----------
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// by Laszlo Urban, September 1997
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// ********************************************************************
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// It is the implementation of the NEW UNIFIED ENERGY LOSS PROCESS.
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// It calculates the continuous energy loss for muons.
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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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// bremsstrahlung
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// e+e- pair production
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// can be added more easily ..........
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// This class creates static muplus/muminus dE/dx and range tables ,
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// which tables can be used by other processes.
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// ************************************************************
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// 27-05-98 some corrections by L.Urban
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// 23-10-98 cleanup L.Urban
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// 10-02-00 corrections due to new e.m. structure L.Urban
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// 10-09-01 loss+ mechanism has been implemented (subcutoff delta rays), L.Urban
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// 28-09-01 suppression of theMuonPlus ..etc..data members (mma)
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// 29-10-01 all static functions no more inlined (mma)
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// ------------------------------------------------------------
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#ifndef G4VMuEnergyLoss_h
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#define G4VMuEnergyLoss_h 1
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#include "G4ios.hh"
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#include "g4std/fstream"
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#include "g4std/iomanip"
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#include "globals.hh"
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#include "Randomize.hh"
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#include "G4VEnergyLoss.hh"
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#include "G4Material.hh"
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#include "G4Element.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 "G4Gamma.hh"
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#include "G4Electron.hh"
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#include "G4Positron.hh"
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#include "G4MuonMinus.hh"
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#include "G4MuonPlus.hh"
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#include "G4PhysicsLogVector.hh"
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#include "G4PhysicsLinearVector.hh"
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class G4EnergyLossMessenger ;
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class G4VMuEnergyLoss : public G4VEnergyLoss
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{
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public:
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G4VMuEnergyLoss(const G4String& );
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virtual ~G4VMuEnergyLoss();
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G4bool IsApplicable(const G4ParticleDefinition&);
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void BuildDEDXTable(const G4ParticleDefinition& aParticleType);
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G4double GetContinuousStepLimit(
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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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G4VParticleChange* AlongStepDoIt(const G4Track& track ,const G4Step& Step) ;
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virtual G4double GetMeanFreePath( 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(
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const G4Track& track,const G4Step& Step) = 0 ;
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protected:
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private:
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// hide assignment operator
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G4VMuEnergyLoss(G4VMuEnergyLoss &);
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G4VMuEnergyLoss & operator=(const G4VMuEnergyLoss &right);
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G4double GetConstraints(const G4DynamicParticle *aParticle,
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G4Material *aMaterial);
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protected:
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G4PhysicsTable* theLossTable ;
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G4double* lastgammaCutInRange ;
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G4double* lastelectronCutInRange ;
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private:
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G4PhysicsTable* theDEDXTable ;
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G4PhysicsTable* theRangeTable ;
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G4PhysicsTable* theRangeCoeffATable ;
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G4PhysicsTable* theRangeCoeffBTable ;
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G4PhysicsTable* theRangeCoeffCTable ;
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G4PhysicsTable** RecorderOfProcess;
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G4int CounterOfProcess;
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// fdEdx=(-dE/dx)
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// computed in GetConstraints at every call;
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G4double fdEdx;
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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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// 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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// static part of the class
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public: // With description
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static void SetNbOfProcesses(G4int nb);
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// Sets number of processes giving contribution to the energy loss
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static void PlusNbOfProcesses();
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// Increases number of processes giving contribution to the energy loss
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static void MinusNbOfProcesses();
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// Decreases number of processes giving contribution to the energy loss
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static G4int GetNbOfProcesses();
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// Gets number of processes giving contribution to the energy loss
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// ( default value = 3)
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static void SetLowerBoundEloss(G4double val);
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static void SetUpperBoundEloss(G4double val);
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static void SetNbinEloss(G4int nb);
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static G4double GetLowerBoundEloss();
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static G4double GetUpperBoundEloss();
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static G4int GetNbinEloss();
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protected:
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static G4PhysicsTable* theDEDXmuplusTable;
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static G4PhysicsTable* theDEDXmuminusTable;
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static G4PhysicsTable* theRangemuplusTable;
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static G4PhysicsTable* theRangemuminusTable;
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static G4PhysicsTable* theInverseRangemuplusTable;
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static G4PhysicsTable* theInverseRangemuminusTable;
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static G4PhysicsTable* theLabTimemuplusTable;
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static G4PhysicsTable* theLabTimemuminusTable;
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static G4PhysicsTable* theProperTimemuplusTable;
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static G4PhysicsTable* theProperTimemuminusTable;
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// processes inherited from G4muEnergyLoss
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// register themselves in the static array Recorder
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static G4int NbOfProcesses;
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static G4PhysicsTable** RecorderOfmuplusProcess;
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static G4PhysicsTable** RecorderOfmuminusProcess;
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static G4int CounterOfmuplusProcess;
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static G4int CounterOfmuminusProcess;
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private:
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static G4int NbinEloss; // number of bins in table
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static G4double LowerBoundEloss;
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static G4double UpperBoundEloss;
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static G4double RTable,LOGRTable; // LOGRTable=log(UpperBoundEloss-
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// LowerBoundEloss)/NbinEloss
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// RTable = exp(LOGRTable)
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static G4PhysicsTable* themuplusRangeCoeffATable;
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static G4PhysicsTable* themuplusRangeCoeffBTable;
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static G4PhysicsTable* themuplusRangeCoeffCTable;
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static G4PhysicsTable* themuminusRangeCoeffATable;
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static G4PhysicsTable* themuminusRangeCoeffBTable;
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static G4PhysicsTable* themuminusRangeCoeffCTable;
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static G4EnergyLossMessenger* eLossMessenger;
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static G4double cN; // coeff to compute nb of deltas
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static G4int Ndeltamax; // upper limit for nb of subcutoff
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// delta rays in one step
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};
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#include "G4VMuEnergyLoss.icc"
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#endif
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