| 1 | //
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| 2 | // ********************************************************************
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| 3 | // * License and Disclaimer *
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| 4 | // * *
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| 5 | // * The Geant4 software is copyright of the Copyright Holders of *
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| 6 | // * the Geant4 Collaboration. It is provided under the terms and *
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| 7 | // * conditions of the Geant4 Software License, included in the file *
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| 8 | // * LICENSE and available at http://cern.ch/geant4/license . These *
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| 9 | // * include a list of copyright holders. *
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| 10 | // * *
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| 11 | // * Neither the authors of this software system, nor their employing *
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| 12 | // * institutes,nor the agencies providing financial support for this *
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| 13 | // * work make any representation or warranty, express or implied, *
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| 14 | // * regarding this software system or assume any liability for its *
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| 15 | // * use. Please see the license in the file LICENSE and URL above *
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| 16 | // * for the full disclaimer and the limitation of liability. *
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| 17 | // * *
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| 18 | // * This code implementation is the result of the scientific and *
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| 19 | // * technical work of the GEANT4 collaboration. *
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| 20 | // * By using, copying, modifying or distributing the software (or *
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| 21 | // * any work based on the software) you agree to acknowledge its *
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| 22 | // * use in resulting scientific publications, and indicate your *
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| 23 | // * acceptance of all terms of the Geant4 Software license. *
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| 24 | // ********************************************************************
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| 25 | //
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| 26 | #ifndef G4IonsKoxCrossSection_h
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| 27 | #define G4IonsKoxCrossSection_h
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| 28 | //
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| 29 | // Class Description
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| 30 | // Implementation of Kox formulas
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| 31 | // Kox et al. Phys. Rev. C 35 1678 (1987);
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| 32 | // Total Reaction Cross Section for Nucleus-nucles reactions.
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| 33 | //
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| 34 | // Class Description - End
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| 35 | // 18-Sep-2003 First version is written by T. Koi
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| 36 | // 12-Nov-2003 Set upper limit at 10 GeV/n
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| 37 | // 12-Nov-2003 Insted of the lower limit,
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| 38 | // 0 is returned to a partilce with energy lowae than 10 MeV/n
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| 39 |
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| 40 | #include "globals.hh"
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| 41 | #include "G4Proton.hh"
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| 42 |
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| 43 | #include "G4VCrossSectionDataSet.hh"
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| 44 |
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| 45 | class G4IonsKoxCrossSection : public G4VCrossSectionDataSet
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| 46 | {
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| 47 | public:
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| 48 | G4IonsKoxCrossSection():
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| 49 | upperLimit ( 10 * GeV ),
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| 50 | lowerLimit ( 10 * MeV ),
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| 51 | r0 ( 1.1 * fermi ),
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| 52 | rc ( 1.3 * fermi )
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| 53 | {
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| 54 | }
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| 55 |
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| 56 | virtual
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| 57 | G4bool IsApplicable(const G4DynamicParticle* aDP, const G4Element*)
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| 58 | {
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| 59 | return IsZAApplicable(aDP, 0., 0.);
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| 60 | }
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| 61 |
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| 62 | virtual
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| 63 | G4bool IsZAApplicable(const G4DynamicParticle* aDP, G4double /*ZZ*/,
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| 64 | G4double /*AA*/)
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| 65 | {
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| 66 | G4int baryonNumber = aDP->GetDefinition()->GetBaryonNumber();
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| 67 | G4double kineticEnergy = aDP->GetKineticEnergy();
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| 68 | if ( kineticEnergy / baryonNumber <= upperLimit )
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| 69 | return true;
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| 70 | return false;
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| 71 | }
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| 72 |
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| 73 | virtual
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| 74 | G4double GetCrossSection(const G4DynamicParticle*,
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| 75 | const G4Element*, G4double aTemperature);
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| 76 |
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| 77 | virtual
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| 78 | G4double GetIsoZACrossSection(const G4DynamicParticle*, G4double ZZ,
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| 79 | G4double AA, G4double aTemperature);
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| 80 |
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| 81 | virtual
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| 82 | void BuildPhysicsTable(const G4ParticleDefinition&)
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| 83 | {}
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| 84 |
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| 85 | virtual
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| 86 | void DumpPhysicsTable(const G4ParticleDefinition&)
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| 87 | {G4cout << "G4IonsKoxCrossSection: uses Kox formula"<<G4endl;}
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| 88 |
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| 89 | private:
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| 90 | const G4double upperLimit;
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| 91 | const G4double lowerLimit;
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| 92 | const G4double r0;
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| 93 | const G4double rc;
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| 94 |
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| 95 | G4double calEcm ( G4double , G4double , G4double );
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| 96 | G4double calCeValue ( G4double );
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| 97 | };
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| 98 |
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| 99 | #endif
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