source: trunk/source/processes/electromagnetic/standard/include/G4CoulombScatteringModel.hh @ 846

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// $Id: G4CoulombScatteringModel.hh,v 1.11 2007/10/09 08:16:29 vnivanch Exp $
// GEANT4 tag $Name: geant4-09-01-patch-02 $
//
// -------------------------------------------------------------------
//
// GEANT4 Class header file
//
//
// File name:     G4CoulombScatteringModel
//
// Author:        Vladimir Ivanchenko 
//
// Creation date: 19.02.2006
//
// Modifications:
// 01.08.06 V.Ivanchenko extend upper limit of table to TeV and review the
//          logic of building - only elements from G4ElementTable
// 08.08.06 V.Ivanchenko build internal table in ekin scale, introduce faclim
// 19.10.06 V.Ivanchenko use inheritance from G4eCoulombScatteringModel
// 09.10.07 V.Ivanchenko reorganized methods, add cut dependence in scattering off e- 
//
// Class Description:
//
// Implementation of CoulombScattering of pointlike charge particle 
// on Atomic Nucleus for interval of scattering anles in CM system 
// thetaMin - ThetaMax
//   The model based on analysis of J.M.Fernandez-Varea et al. 
// NIM B73(1993)447 originated from G.Wentzel Z.Phys. 40(1927)590 with 
// screening parameter from H.A.Bethe Phys. Rev. 89 (1953) 1256.
// 

// -------------------------------------------------------------------
//

#ifndef G4CoulombScatteringModel_h
#define G4CoulombScatteringModel_h 1

#include "G4eCoulombScatteringModel.hh"
#include "globals.hh"

class G4ParticleTable;
class G4NistManager;

class G4CoulombScatteringModel : public G4eCoulombScatteringModel
{

public:

  G4CoulombScatteringModel(G4double thetaMin = 0.0, G4double thetaMax = pi,
                           G4bool build = false, G4double tlim = TeV*TeV,
                           const G4String& nam = "CoulombScattering");
 
  virtual ~G4CoulombScatteringModel();

  virtual G4double ComputeCrossSectionPerAtom(
                                const G4ParticleDefinition*,
                                G4double kinEnergy, 
                                G4double Z, 
                                G4double A, 
                                G4double cut,
                                G4double emax);

  virtual void SampleSecondaries(std::vector<G4DynamicParticle*>*,
                                 const G4MaterialCutsCouple*,
                                 const G4DynamicParticle*,
                                 G4double tmin,
                                 G4double maxEnergy);

private:

  G4double SelectIsotope(const G4Element*);

  // hide assignment operator
  G4CoulombScatteringModel & operator=(const G4CoulombScatteringModel &right);
  G4CoulombScatteringModel(const  G4CoulombScatteringModel&);

  G4ParticleTable*            theParticleTable; 
  const G4NistManager*        theMatManager;
};

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#endif