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0001 //
0002 // ********************************************************************
0003 // * License and Disclaimer                                           *
0004 // *                                                                  *
0005 // * The  Geant4 software  is  copyright of the Copyright Holders  of *
0006 // * the Geant4 Collaboration.  It is provided  under  the terms  and *
0007 // * conditions of the Geant4 Software License,  included in the file *
0008 // * LICENSE and available at  http://cern.ch/geant4/license .  These *
0009 // * include a list of copyright holders.                             *
0010 // *                                                                  *
0011 // * Neither the authors of this software system, nor their employing *
0012 // * institutes,nor the agencies providing financial support for this *
0013 // * work  make  any representation or  warranty, express or implied, *
0014 // * regarding  this  software system or assume any liability for its *
0015 // * use.  Please see the license in the file  LICENSE  and URL above *
0016 // * for the full disclaimer and the limitation of liability.         *
0017 // *                                                                  *
0018 // * This  code  implementation is the result of  the  scientific and *
0019 // * technical work of the GEANT4 collaboration.                      *
0020 // * By using,  copying,  modifying or  distributing the software (or *
0021 // * any work based  on the software)  you  agree  to acknowledge its *
0022 // * use  in  resulting  scientific  publications,  and indicate your *
0023 // * acceptance of all terms of the Geant4 Software license.          *
0024 // ********************************************************************
0025 //
0026 //
0027 // Author: Luciano Pandola
0028 //
0029 // History:
0030 // -----------
0031 // 09 Mar 2012   L. Pandola   1st implementation. 
0032 //
0033 // -------------------------------------------------------------------
0034 //
0035 //! Class description:
0036 //!  This class is meant to calculate, store and provide the shell-per-shell
0037 //!  and the total ionisation cross section calculated by the Penelope model.
0038 //! The information is provided to other physics models, notably: Penelope 
0039 //! ionisation model and Penelope "PIXE" model. Cross sections are calculated 
0040 //! per material-cut couple and stored as G4PenelopeCrossSection objects.
0041 //!
0042 // -------------------------------------------------------------------
0043 
0044 #ifndef G4PENELOPEIONISATIONXSHANDLER_HH
0045 #define G4PENELOPEIONISATIONXSHANDLER_HH 1
0046 
0047 #include "globals.hh"
0048 #include "G4DataVector.hh"
0049 #include "G4Material.hh"
0050 #include <map>
0051 
0052 class G4PhysicsFreeVector;
0053 class G4PhysicsLogVector;
0054 class G4ParticleDefinition;
0055 class G4PenelopeOscillatorManager;
0056 class G4PenelopeOscillator;
0057 class G4PenelopeCrossSection;
0058 
0059 class G4PenelopeIonisationXSHandler 
0060 {
0061 public:  
0062   //! Constructor. nBins is the number of intervals in the 
0063   //! energy grid. By default the energy grid goes from 100 eV
0064   //! to 100 GeV.
0065   explicit G4PenelopeIonisationXSHandler(size_t nBins=200);
0066   
0067   //! Destructor. Clean all tables.
0068   virtual ~G4PenelopeIonisationXSHandler();
0069 
0070   //!Returns the density coeection for the material at the given energy
0071   G4double GetDensityCorrection(const G4Material*,const G4double energy) const;
0072   //! Returns the table of cross sections for the given particle, given 
0073   //! material and given cut as a G4PenelopeCrossSection* pointer.
0074   const G4PenelopeCrossSection* GetCrossSectionTableForCouple(const G4ParticleDefinition*,
0075                                   const G4Material*,const G4double cut) const;
0076   //!Setter for the verbosity level
0077   void SetVerboseLevel(G4int vl){fVerboseLevel = vl;};
0078 
0079   //! This can be inkoved only by the master
0080   void BuildXSTable(const G4Material*,G4double cut,
0081             const G4ParticleDefinition*,G4bool isMaster=true);
0082 
0083   G4PenelopeIonisationXSHandler & operator=(const G4PenelopeIonisationXSHandler &right) = delete;
0084   G4PenelopeIonisationXSHandler(const G4PenelopeIonisationXSHandler&) = delete;
0085 
0086 private:
0087   void BuildDeltaTable(const G4Material*);
0088 
0089   G4DataVector* ComputeShellCrossSectionsElectron(G4PenelopeOscillator* ,
0090                           G4double energy,G4double cut,
0091                               G4double delta);
0092     
0093   G4DataVector* ComputeShellCrossSectionsPositron(G4PenelopeOscillator* ,
0094                           G4double energy,G4double cut,
0095                                           G4double delta);
0096 
0097   //Oscillator manager
0098   G4PenelopeOscillatorManager* fOscManager;
0099 
0100   //G4PenelopeCrossSection takes care of the logs
0101   std::map< std::pair<const G4Material*,G4double>, G4PenelopeCrossSection*> *fXSTableElectron;
0102   std::map< std::pair<const G4Material*,G4double>, G4PenelopeCrossSection*> *fXSTablePositron;
0103   
0104   //delta vs. log(energy)
0105   std::map<const G4Material*,G4PhysicsFreeVector*> *fDeltaTable;
0106 
0107   //energy grid
0108   G4PhysicsLogVector* fEnergyGrid;
0109  
0110   G4int fVerboseLevel;
0111   size_t fNBins;
0112 };
0113 
0114 #endif
0115