G4CrossSectionElastic.cc

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// $Id: G4CrossSectionElastic.cc 66241 2012-12-13 18:34:42Z gunter $
//
// -------------------------------------------------------------------
//
// GEANT4 Class file
//
//
// File name:     G4CrossSectionElastic
//
// Author:        Vladimir Ivanchenko
//
// Creation date: 19.11.2010
// Modifications:
//
// Class Description:
//
// Wrapper for elastic cross section build from a component
//
// -------------------------------------------------------------------
//

#include "G4CrossSectionElastic.hh"
#include "G4VComponentCrossSection.hh"
#include "G4ParticleDefinition.hh"
#include "G4DynamicParticle.hh"
#include "G4Element.hh"
#include "G4NistManager.hh"

G4CrossSectionElastic::G4CrossSectionElastic(G4VComponentCrossSection* c,
                                             G4int zmin, G4int zmax, 
                                             G4double Emin, G4double Emax)
  : G4VCrossSectionDataSet(c->GetName()), component(c),
    Zmin(zmin),Zmax(zmax)
{
  nist = G4NistManager::Instance();
  SetMinKinEnergy(Emin);
  SetMaxKinEnergy(Emax);
}

G4CrossSectionElastic::~G4CrossSectionElastic()
{}
   
G4bool G4CrossSectionElastic::IsElementApplicable(const G4DynamicParticle* p, 
                                                  G4int Z, const G4Material*)
{
  G4double e = p->GetKineticEnergy();
  return 
    (Z >= Zmin && Z <= Zmax && e >= GetMinKinEnergy() && e <= GetMaxKinEnergy()); 
}

G4double 
G4CrossSectionElastic::GetElementCrossSection(const G4DynamicParticle* p, 
                                              G4int Z, 
                                              const G4Material*)
{
  return component->GetElasticElementCrossSection(p->GetDefinition(), 
                                                  p->GetKineticEnergy(), 
                                                  Z, nist->GetAtomicMassAmu(Z));
}

void G4CrossSectionElastic::BuildPhysicsTable(const G4ParticleDefinition& p)
{
  component->BuildPhysicsTable(p);
}

void G4CrossSectionElastic::DumpPhysicsTable(const G4ParticleDefinition& p)
{
  component->DumpPhysicsTable(p);
}

void G4CrossSectionElastic::CrossSectionDescription(std::ostream& /*outFile*/) const
{
  component->Description();
}