Gabriele Cosmo
100 lines
3.6 KiB
C++
100 lines
3.6 KiB
C++
//
|
|
// ********************************************************************
|
|
// * 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. *
|
|
// ********************************************************************
|
|
//
|
|
#ifndef G4IonsKoxCrossSection_h
|
|
#define G4IonsKoxCrossSection_h
|
|
//
|
|
// Class Description
|
|
// Implementation of Kox formulas
|
|
// Kox et al. Phys. Rev. C 35 1678 (1987);
|
|
// Total Reaction Cross Section for Nucleus-nucles reactions.
|
|
//
|
|
// Class Description - End
|
|
// 18-Sep-2003 First version is written by T. Koi
|
|
// 12-Nov-2003 Set upper limit at 10 GeV/n
|
|
// 12-Nov-2003 Insted of the lower limit,
|
|
// 0 is returned to a partilce with energy lowae than 10 MeV/n
|
|
|
|
#include "globals.hh"
|
|
#include "G4Proton.hh"
|
|
|
|
#include "G4VCrossSectionDataSet.hh"
|
|
|
|
class G4IonsKoxCrossSection : public G4VCrossSectionDataSet
|
|
{
|
|
public:
|
|
G4IonsKoxCrossSection():
|
|
upperLimit ( 10 * GeV ),
|
|
lowerLimit ( 10 * MeV ),
|
|
r0 ( 1.1 * fermi ),
|
|
rc ( 1.3 * fermi )
|
|
{
|
|
}
|
|
|
|
virtual
|
|
G4bool IsApplicable(const G4DynamicParticle* aDP, const G4Element*)
|
|
{
|
|
return IsZAApplicable(aDP, 0., 0.);
|
|
}
|
|
|
|
virtual
|
|
G4bool IsZAApplicable(const G4DynamicParticle* aDP, G4double /*ZZ*/,
|
|
G4double /*AA*/)
|
|
{
|
|
G4int baryonNumber = aDP->GetDefinition()->GetBaryonNumber();
|
|
G4double kineticEnergy = aDP->GetKineticEnergy();
|
|
if ( kineticEnergy / baryonNumber <= upperLimit )
|
|
return true;
|
|
return false;
|
|
}
|
|
|
|
virtual
|
|
G4double GetCrossSection(const G4DynamicParticle*,
|
|
const G4Element*, G4double aTemperature);
|
|
|
|
virtual
|
|
G4double GetIsoZACrossSection(const G4DynamicParticle*, G4double ZZ,
|
|
G4double AA, G4double aTemperature);
|
|
|
|
virtual
|
|
void BuildPhysicsTable(const G4ParticleDefinition&)
|
|
{}
|
|
|
|
virtual
|
|
void DumpPhysicsTable(const G4ParticleDefinition&)
|
|
{G4cout << "G4IonsKoxCrossSection: uses Kox formula"<<G4endl;}
|
|
|
|
private:
|
|
const G4double upperLimit;
|
|
const G4double lowerLimit;
|
|
const G4double r0;
|
|
const G4double rc;
|
|
|
|
G4double calEcm ( G4double , G4double , G4double );
|
|
G4double calCeValue ( G4double );
|
|
};
|
|
|
|
#endif
|