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// $Id: G4CrossSectionTest.cc,v 1.3 2008/03/25 10:36:28 pia Exp $
// GEANT4 tag $Name: geant4-09-03-cand-01 $
//
//
// -------------------------------------------------------------------
//      Author:        Maria Grazia Pia
// 
//      Creation date: 6 August 2001
//
//      Modifications: 
//
// -------------------------------------------------------------------

#include "globals.hh"
#include "G4ios.hh"
#include <fstream>
#include <iomanip>


#include "G4ParticleDefinition.hh"
#include "G4ParticleTypes.hh"
//#include "G4ParticleTable.hh"
#include "G4ParticleMomentum.hh"
#include "G4DynamicParticle.hh"
#include "G4ThreeVector.hh"
#include "G4Track.hh"
#include "G4SystemOfUnits.hh"

#include "G4CrossSectionElasticScreenedRutherford.hh"
#include "G4CrossSectionExcitationEmfietzoglou.hh"
#include "G4CrossSectionExcitationEmfietzoglouPartial.hh"
#include "G4CrossSectionExcitationBorn.hh"
#include "G4CrossSectionExcitationBornPartial.hh"
#include "G4CrossSectionIonisationBornElectron.hh"
#include "G4CrossSectionIonisationBorn.hh"

#include "G4CrossSectionChargeTransferCH.hh"
#include "G4CrossSectionChargeTransferExp.hh"

int main()
{

  //  G4cout.setf( ios::scientific, ios::floatfield );

  // G4CrossSectionElasticScreenedRutherford* cross = new G4CrossSectionElasticScreenedRutherford;
  // G4CrossSectionExcitationEmfietzoglou* cross = new G4CrossSectionExcitationEmfietzoglou;
  // G4CrossSectionExcitationEmfietzoglouPartial* cross = new G4CrossSectionExcitationEmfietzoglouPartial;
  // G4CrossSectionExcitationBornPartial* cross = new G4CrossSectionExcitationBornPartial;
  // G4CrossSectionIonisationBornElectron* cross = new G4CrossSectionIonisationBornElectron;

  // G4CrossSectionIonisationBorn* cross = new G4CrossSectionIonisationBorn;

  G4CrossSectionChargeTransferCH* cross = new G4CrossSectionChargeTransferCH;

  // G4CrossSectionChargeTransferExp* cross = new G4CrossSectionChargeTransferExp;

  // Particle definitions
  
  G4ParticleDefinition* electron = G4Electron::ElectronDefinition();
  G4ParticleDefinition* proton = G4Proton::ProtonDefinition();
  G4ParticleDefinition* positron = G4Positron::PositronDefinition();
 
  // Create a DynamicParticle  
  
  G4double initX = 0.; 
  G4double initY = 0.; 
  G4double initZ = 1.;
 
  G4ParticleMomentum direction(initX,initY,initZ);

  G4cout << "Enter initial energy in keV" << G4endl;
  G4double e0;
  G4cin >> e0;
  e0 = e0 * keV;

  G4cout << "Enter energy step in keV" << G4endl;

  G4double eStep;
  G4cin >> eStep;
  eStep = eStep * keV;


  // 10 energy steps between the energy limits
  G4int nStep = 10;

  for (G4int i=0; i<nStep; i++) 
    {
      G4double energy = e0 + i * eStep;
      
      //      G4DynamicParticle dynamicParticle(electron,direction,energy);
      G4DynamicParticle dynamicParticle(proton,direction,energy);
      //      G4DynamicParticle dynamicParticle(positron,direction,energy);
       
      //     dynamicParticle.DumpInfo(0);
     
      // Track 

      G4ThreeVector position(0.,0.,0.);
      G4double time = 0. ;
      
      G4Track track(&dynamicParticle,time,position);
      
      G4double sigma = cross->CrossSection(track);
      // G4double sigma = cross->CrossSection(energy,0);
      // G4double sigma = cross->CrossSection(energy,electron::GetParticleName());

      //     G4cout << energy/keV <<" keV, cross section = " << sigma / (cm*cm) << " cm2" << G4endl;

      //  G4cout << energy/keV <<" " << sigma / (cm*cm) << G4endl;
      G4cout << energy/keV <<" " << sigma / cm2 << G4endl;

      // G4int level = cross->RandomSelect(energy);

      //   G4cout << "Level = " << level << G4endl;
    }

  delete cross;

  G4cout << "END OF THE MAIN PROGRAM" << G4endl;
}