G4ANSTOecpssrKxsModel.cc

Go to the documentation of this file.

//
// ********************************************************************
// * License and Disclaimer                                           *
// *                                                                  *
// * The  Geant4 software  is  copyright of the Copyright Holders  of *
// * the Geant4 Collaboration.  It is provided  under  the terms  and *
// * conditions of the Geant4 Software License,  included in the file *
// * LICENSE and available at  http://cern.ch/geant4/license .  These *
// * include a list of copyright holders.                             *
// *                                                                  *
// * Neither the authors of this software system, nor their employing *
// * institutes,nor the agencies providing financial support for this *
// * work  make  any representation or  warranty, express or implied, *
// * regarding  this  software system or assume any liability for its *
// * use.  Please see the license in the file  LICENSE  and URL above *
// * for the full disclaimer and the limitation of liability.         *
// *                                                                  *
// * This  code  implementation is the result of  the  scientific and *
// * technical work of the GEANT4 collaboration.                      *
// * By using,  copying,  modifying or  distributing the software (or *
// * any work based  on the software)  you  agree  to acknowledge its *
// * use  in  resulting  scientific  publications,  and indicate your *
// * acceptance of all terms of the Geant4 Software license.          *
// ********************************************************************
//
// History:
// -----------
//  10 Nov 2021   S. Guatelli & S. Bakr, Wollongong University - 1st implementation
//
// Class description
// ----------------
//  Computation of K, L & M shell ECPSSR ionisation cross sections for protons and alphas
//  Based on the work of
//  - S. Bakr et al. (2021) NIM B, 507:11-19.
//  - S. Bakr et al (2018), NIMB B, 436: 285-291. 
// ---------------------------------------------------------------------------------------
 
#include <fstream>
#include <iomanip>
 
#include "G4ANSTOecpssrKxsModel.hh"
 
#include "globals.hh"
#include "G4SystemOfUnits.hh"
#include "G4ios.hh"
 
#include "G4EMDataSet.hh"
#include "G4LogLogInterpolation.hh"
#include "G4Proton.hh"
#include "G4Alpha.hh"
 
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
 
G4ANSTOecpssrKxsModel::G4ANSTOecpssrKxsModel()
{
 
  G4cout << "Using ANSTO K Cross Sections! "<< G4endl;
 
  interpolation = new G4LogLogInterpolation();
  for (G4int i=6; i<93; i++)
  {
      protonDataSetMap[i] = new G4EMDataSet(i,interpolation);
      protonDataSetMap[i]->LoadData("pixe_ANSTO/proton/k-");
  }
 
  for (G4int i=6; i<93; i++)
  {
      alphaDataSetMap[i] = new G4EMDataSet(i,interpolation);
      alphaDataSetMap[i]->LoadData("pixe_ANSTO/alpha/k-");
  }
 
}
G4ANSTOecpssrKxsModel::G4ANSTOecpssrKxsModel() {…}
 
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
 
G4ANSTOecpssrKxsModel::~G4ANSTOecpssrKxsModel()
{
  protonDataSetMap.clear();
  alphaDataSetMap.clear();
  delete interpolation;
}
G4ANSTOecpssrKxsModel::~G4ANSTOecpssrKxsModel() {…}
 
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
 
G4double G4ANSTOecpssrKxsModel::CalculateCrossSection(G4int zTarget,G4double massIncident, G4double energyIncident)
{
  G4Proton* aProton = G4Proton::Proton();
  G4Alpha* aAlpha = G4Alpha::Alpha();
  G4double sigma = 0;
 
  if (massIncident == aProton->GetPDGMass())
    {
      if (energyIncident > 0.2*MeV && energyIncident < 5.*MeV && zTarget < 93 && zTarget > 5) {
 
            sigma = protonDataSetMap[zTarget]->FindValue(energyIncident/MeV);
            if (sigma !=0 && energyIncident > protonDataSetMap[zTarget]->GetEnergies(0).back()*MeV) return 0.;
        }
    }
    
  else if (massIncident == aAlpha->GetPDGMass())
        {
          if (energyIncident > 0.2*MeV && energyIncident < 40.*MeV && zTarget < 93 && zTarget > 5) {
 
            sigma = alphaDataSetMap[zTarget]->FindValue(energyIncident/MeV);
            if (sigma !=0 && energyIncident > alphaDataSetMap[zTarget]->GetEnergies(0).back()*MeV) return 0.;
          }
         }
          
   else
          {
              sigma = 0.;
          }
        
  // sigma is in internal units: it has been converted from
  // the input file in barns bt the EmDataset
  return sigma;
}
G4double G4ANSTOecpssrKxsModel::CalculateCrossSection(G4int zTarget,G4double massIncident, G4double energyIncident) {…}