Gabriele Cosmo
153 lines
4.5 KiB
C++
153 lines
4.5 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: G4VCrossSectionHandler.hh,v 1.11 2002/05/28 09:15:26 pia Exp $
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// GEANT4 tag $Name: geant4-05-00 $
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//
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// Author: Maria Grazia Pia (Maria.Grazia.Pia@cern.ch)
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//
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// History:
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// -----------
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// 16 Sep 2001 MGP Created
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// 26 Sep 2001 V.Ivanchenko Hide copy constructor and assignement operator
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// 18 Apr 2002 V.Ivanchenko Move member function ValueForMaterial to public
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//
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// -------------------------------------------------------------------
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// Class description:
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// Low Energy Electromagnetic Physics
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// Base class for cross section manager for an electromagnetic physics process
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// Further documentation available from http://www.ge.infn.it/geant4/lowE
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// -------------------------------------------------------------------
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#ifndef G4VCROSSSECTIONHANDLER_HH
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#define G4VCROSSSECTIONHANDLER_HH 1
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#include "globals.hh"
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#include "G4DataVector.hh"
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#include "g4std/map"
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#include "g4std/vector"
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class G4VDataSetAlgorithm;
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class G4VEMDataSet;
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class G4Material;
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class G4Element;
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class G4VCrossSectionHandler {
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public:
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G4VCrossSectionHandler();
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G4VCrossSectionHandler(G4VDataSetAlgorithm* interpolation,
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G4double minE = 250*eV, G4double maxE = 100*GeV,
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G4int nBins = 200,
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G4double unitE = MeV, G4double unitData = barn,
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G4int minZ = 1, G4int maxZ = 99);
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virtual ~G4VCrossSectionHandler();
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void Initialise(G4VDataSetAlgorithm* interpolation = 0,
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G4double minE = 250*eV, G4double maxE = 100*GeV,
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G4int numberOfBins = 200,
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G4double unitE = MeV, G4double unitData = barn,
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G4int minZ = 1, G4int maxZ = 99);
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G4int SelectRandomAtom(const G4Material* material, G4double e) const;
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const G4Element* SelectRandomElement(const G4Material* material,
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G4double e) const;
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G4int SelectRandomShell(G4int Z, G4double e) const;
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G4VEMDataSet* BuildMeanFreePathForMaterials(const G4DataVector* energyCuts = 0);
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G4double FindValue(G4int Z, G4double e) const;
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G4double FindValue(G4int Z, G4double e, G4int shellIndex) const;
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G4double ValueForMaterial(const G4Material* material, G4double e) const;
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void LoadData(const G4String& dataFile);
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void LoadShellData(const G4String& dataFile);
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void PrintData() const;
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void Clear();
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protected:
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G4int NumberOfComponents(G4int Z) const;
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void ActiveElements();
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// Factory method
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virtual G4std::vector<G4VEMDataSet*>* BuildCrossSectionsForMaterials(const G4DataVector& energyVector,
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const G4DataVector* energyCuts = 0) = 0;
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// Factory method
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virtual G4VDataSetAlgorithm* CreateInterpolation();
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const G4VDataSetAlgorithm* GetInterpolation() const { return interpolation; }
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private:
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// Hide copy constructor and assignment operator
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G4VCrossSectionHandler(const G4VCrossSectionHandler&);
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G4VCrossSectionHandler & operator=(const G4VCrossSectionHandler &right);
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G4VDataSetAlgorithm* interpolation;
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G4double eMin;
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G4double eMax;
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G4int nBins;
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G4double unit1;
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G4double unit2;
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G4int zMin;
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G4int zMax;
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G4DataVector activeZ;
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G4std::map<G4int,G4VEMDataSet*,G4std::less<G4int> > dataMap;
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G4std::vector<G4VEMDataSet*>* crossSections;
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};
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#endif
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