Gabriele Cosmo
221 lines
8.1 KiB
C++
221 lines
8.1 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: G4VhEnergyLoss.hh,v 1.19 2006/06/29 19:51:52 gunter Exp $
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// GEANT4 tag $Name: geant4-08-01 $
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//
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// ------------- G4VhEnergyLoss physics process --------------------------------
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// by Laszlo Urban, 30 May 1997
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//
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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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// -----------------------------------------------------------------------------
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// 7/10/98 some bugs fixed + some cleanup , L.Urban
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// 22/10/98 cleanup , L.Urban
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// 02/02/99 several bugs fixed, L.Urban
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// 10/02/00 modifications , new e.m. structure, L.Urban
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// 10/09/01 bugfix in subcutoff delta generation, L.Urban
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// 29-10-01 all static functions no more inlined (mma)
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// 08-11-01 BuildDEDXTable not static,Charge local variable, L.Urban
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// 15-01-03 Migrade to cut per region (V.Ivanchenko)
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//
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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#ifndef G4VhEnergyLoss_h
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#define G4VhEnergyLoss_h 1
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#include "G4ios.hh"
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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 "G4Proton.hh"
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#include "G4AntiProton.hh"
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#include "G4Electron.hh"
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#include "G4VParticleChange.hh"
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#include "G4Track.hh"
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#include "G4Step.hh"
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#include "G4PhysicsLogVector.hh"
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#include "G4PhysicsLinearVector.hh"
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#include "G4MaterialCutsCouple.hh"
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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class G4VhEnergyLoss : public G4VEnergyLoss
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{
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public:
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G4VhEnergyLoss(const G4String& );
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virtual ~G4VhEnergyLoss();
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G4bool IsApplicable(const G4ParticleDefinition&);
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void BuildDEDXTable(const G4ParticleDefinition& aParticleType);
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G4double GetContinuousStepLimit(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) = 0;
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virtual G4VParticleChange* PostStepDoIt(const G4Track& track,
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const G4Step& Step) = 0;
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private:
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G4double GetConstraints(const G4DynamicParticle *aParticle,
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const G4MaterialCutsCouple *couple);
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G4double EnergyLossFluctuation(const G4DynamicParticle *aParticle,
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const G4MaterialCutsCouple *couple,
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G4double ChargeSquare,
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G4double MeanLoss,
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G4double Step);
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//hide assignment operator
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G4VhEnergyLoss(G4VhEnergyLoss &);
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G4VhEnergyLoss & operator=(const G4VhEnergyLoss &right);
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protected:
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virtual G4double SecondaryEnergyThreshold(size_t index) = 0;
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G4PhysicsTable* theLossTable;
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G4double MinKineticEnergy;
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private:
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static G4PhysicsTable* theDEDXTable;
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G4double fdEdx; // computed in GetContraints
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G4double fRangeNow; // computed in GetContraints
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G4double linLossLimit;
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//
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// static part of the cc: // With description
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//
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public:
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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 = 1)
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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* 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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//inverse of the range tables
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static G4PhysicsTable* theInverseRangepTable;
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static G4PhysicsTable* theInverseRangepbarTable;
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//lab and proper time tables
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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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// processes inherited from G4VhEnergyLoss
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// register themselves in the static array Recorder
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static G4int NbOfProcesses;
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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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static G4int NbinEloss; // number of bins in table,
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// calculated in BuildPhysicTable
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static G4double LowerBoundEloss;
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static G4double UpperBoundEloss;
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static G4double RTable,LOGRTable; // LOGRTable=std::log(UpperBoundEloss-
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// LowerBoundEloss)/NbinEloss
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// RTable = std::exp(LOGRTable)
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static G4PhysicsTable** RecorderOfProcess;
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static G4int CounterOfProcess;
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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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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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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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#include "G4VhEnergyLoss.icc"
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#endif
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