G4GeneralSpaceNNCrossSection.cc

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//
// %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
//
// MODULE:              G4GeneralSpaceNNCrossSection.cc
//
// Version:     B.1
// Date:        15/04/04
// Author:      P R Truscott
// Organisation:    QinetiQ Ltd, UK
// Customer:        ESA/ESTEC, NOORDWIJK
// Contract:        17191/03/NL/LvH
//
// %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
//
// CHANGE HISTORY
// --------------
//
// 6 October 2003, P R Truscott, QinetiQ Ltd, UK
// Created.
//
// 15 March 2004, P R Truscott, QinetiQ Ltd, UK
// Beta release
//
// 19 Aug 2011, V.Ivanchenko move to new design and make x-section per element
//
// %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
//
#include <iomanip>

#include "G4GeneralSpaceNNCrossSection.hh"
#include "G4SystemOfUnits.hh"
#include "G4ProtonInelasticCrossSection.hh"
#include "G4IonProtonCrossSection.hh"
#include "G4TripathiLightCrossSection.hh"
#include "G4TripathiCrossSection.hh"
#include "G4IonsShenCrossSection.hh"
#include "G4DynamicParticle.hh"
#include "G4Element.hh"
#include "G4ParticleDefinition.hh"
#include "G4HadTmpUtil.hh"
#include "G4Proton.hh"

G4GeneralSpaceNNCrossSection::G4GeneralSpaceNNCrossSection ()
 : G4VCrossSectionDataSet("General Space NN")
{
  protonInelastic = new G4ProtonInelasticCrossSection();
  ionProton       = new G4IonProtonCrossSection();
  TripathiGeneral = new G4TripathiCrossSection();
  TripathiLight   = new G4TripathiLightCrossSection();
  Shen            = new G4IonsShenCrossSection();
  theProton       = G4Proton::Proton();  
}

G4GeneralSpaceNNCrossSection::~G4GeneralSpaceNNCrossSection ()
{
  delete protonInelastic;
  delete ionProton;
  delete TripathiGeneral;
  delete TripathiLight;
  delete Shen;
}

//

G4bool G4GeneralSpaceNNCrossSection::IsElementApplicable
  (const G4DynamicParticle* theProjectile, G4int, const G4Material*)
{
  return (1 <= theProjectile->GetDefinition()->GetBaryonNumber());
}

//

G4double G4GeneralSpaceNNCrossSection::GetElementCrossSection
  (const G4DynamicParticle* theProjectile, G4int ZT, const G4Material* mat)
{
  G4double result = 0.0;
  G4int ZP = G4lrint(theProjectile->GetDefinition()->GetPDGCharge()/eplus);

  if (verboseLevel >= 2)
  {
    G4int AP = theProjectile->GetDefinition()->GetBaryonNumber();
    G4cout <<"In G4GeneralSpaceNNCrossSection::GetCrossSection" <<G4endl;
    G4cout <<"Projectile A = " <<std::setw(8) <<AP 
           <<" Z = "           <<std::setw(8) <<ZP
           <<" Energy = "      <<theProjectile->GetKineticEnergy()/AP
           <<" MeV/nuc" <<G4endl;
    G4cout <<"Target     Z = " <<std::setw(8) <<ZT
           <<G4endl;
  }
  if (theProjectile->GetDefinition()==theProton)
  {
    if (ZT>5)
    {
      result = protonInelastic->
        GetElementCrossSection(theProjectile, ZT, mat);
      if (verboseLevel >= 2)
        G4cout <<"Selecting G4ProtonInelasticCrossSection" <<G4endl;
    }
    else
    {
      result = TripathiLight->
        GetElementCrossSection(theProjectile, ZT, mat);
      if (verboseLevel >= 2)
        G4cout <<"Selecting G4TripathiLightCrossSection" <<G4endl;
    }
  }
  else if (ZT==1)
  {
    if (ZP>5)
    {
      result = ionProton->
        GetElementCrossSection(theProjectile, ZT, mat);
      if (verboseLevel >= 2)
        G4cout <<"Selecting G4IonProtonCrossSection" <<G4endl;
    }
    else
    {
      result = TripathiLight->
        GetElementCrossSection(theProjectile, ZT, mat);
      if (verboseLevel >= 2)
        G4cout <<"Selecting G4TripathiLightCrossSection" <<G4endl;
    }
  }
  else
  {
    if (TripathiLight->IsElementApplicable(theProjectile, ZT, mat))
    {
      result = TripathiLight->
        GetElementCrossSection(theProjectile, ZT, mat);
      if (verboseLevel >= 2)
        G4cout <<"Selecting G4TripathiLightCrossSection" <<G4endl;
    }
    else if (TripathiGeneral->IsElementApplicable(theProjectile, ZT, mat))
    {
      result = TripathiGeneral->
        GetElementCrossSection(theProjectile, ZT, mat);
      if (verboseLevel >= 2)
        G4cout <<"Selecting G4TripathiCrossSection" <<G4endl;
    }
    else if (Shen->IsElementApplicable(theProjectile, ZT, mat))
    {
      result = Shen->
        GetElementCrossSection(theProjectile, ZT, mat);
      if (verboseLevel >= 2)
        G4cout <<"Selecting G4IonsShenCrossSection" <<G4endl;
    }
  }
  if (verboseLevel >= 2)
  {
    G4cout <<"Cross-section = " <<result/millibarn <<" mbarn" <<G4endl;
    G4cout <<G4endl;
  }

  return result;
}

//

void G4GeneralSpaceNNCrossSection::CrossSectionDescription(std::ostream& outFile) const
{
   outFile << "G4GeneralSpaceNNCrossSection calculates hadronic inelastic\n"
           << "cross sections of interest in space science, by using the\n"
           << "following cross sections:\n"
           << "- G4ProtonInelasticCrossSection : for proton projectile\n"
           << "  on targets with Z > 5;\n"
           << "- G4TripathiLightCrossSection : for proton projectile\n"
           << "  on targets with Z <= 5;\n"
           << "  for targets with Z = 1 and projectile Z <= 5;\n"
           << "  for neutron, or deuteron, or 3He, or alpha projectile\n"
           << "  with kinetic energy less than 10 GeV per nucleon,\n"
           << "  in any target;\n"
           << "  for 3He and 4He targets, for any projectile with\n"
           << "  kinetic energy less than 10 GeV per nucleon;\n"
           << "- G4IonProtonCrossSection : for projectile with Z > 5\n"
           << "  on hydrogen target;\n"
           << "- G4TripathiCrossSection : for any projectile with A >=3\n"
           << "  and kinetic energy less than 1 GeV per nucleon,\n"
           << "  for any target, if the previous cross section is\n"
           << "  not applicable;\n"
           << "- G4IonsShenCrossSection : in all remaining cases, up to\n"
           << "  projectile kinetic energy of 1 TeV per nucleon.\n";
}