| 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 |
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| 27 | #ifndef G4IonsShenCrossSection_h
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| 28 | #define G4IonsShenCrossSection_h
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| 29 | //
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| 30 | // Class Description
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| 31 | // Implementation of formulas
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| 32 | // Shen et al. Nuc. Phys. A 491 130 (1989);
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| 33 | // Total Reaction Cross Section for Heavy-Ion Collisions
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| 34 | //
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| 35 | // Class Description - End
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| 36 | // 18-Sep-2003 First version is written by T. Koi
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| 37 | // 12-Nov-2003 Set upper limit at 10 GeV/n
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| 38 | // 12-Nov-2003 Insted of the lower limit,
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| 39 | // 0 is returned to a partilce with energy lowae than 10 MeV/n
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| 40 | // 15-Nov-2006 Change upper limit to 1 TeV/n
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| 41 | // However above 10GeV/n XS become constant.
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| 42 | // 23-Dec-2006 Isotope dependence added by D. Wright
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| 43 | //
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| 44 |
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| 45 | #include "globals.hh"
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| 46 | #include "G4Proton.hh"
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| 47 |
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| 48 | #include "G4VCrossSectionDataSet.hh"
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| 49 |
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| 50 | class G4IonsShenCrossSection : public G4VCrossSectionDataSet
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| 51 | {
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| 52 | public:
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| 53 | G4IonsShenCrossSection ():
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| 54 | upperLimit ( 1 * TeV ),
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| 55 | lowerLimit ( 10 * MeV ),
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| 56 | r0 ( 1.1 )
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| 57 | {
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| 58 | }
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| 59 |
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| 60 | virtual
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| 61 | G4bool IsApplicable(const G4DynamicParticle* aDP, const G4Element*)
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| 62 | {
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| 63 | return IsIsoApplicable(aDP, 0, 0);
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| 64 | }
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| 65 |
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| 66 | virtual
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| 67 | G4bool IsIsoApplicable(const G4DynamicParticle* aDP,
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| 68 | G4int /*ZZ*/, G4int /*AA*/)
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| 69 | {
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| 70 | G4int baryonNumber = aDP->GetDefinition()->GetBaryonNumber();
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| 71 | G4double kineticEnergy = aDP->GetKineticEnergy();
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| 72 | if ( kineticEnergy / baryonNumber <= upperLimit )
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| 73 | return true;
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| 74 | return false;
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| 75 | }
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| 76 |
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| 77 |
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| 78 | virtual
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| 79 | G4double GetCrossSection(const G4DynamicParticle*,
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| 80 | const G4Element*, G4double aTemperature);
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| 81 |
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| 82 | virtual
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| 83 | G4double GetZandACrossSection(const G4DynamicParticle*, G4int ZZ,
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| 84 | G4int AA, G4double aTemperature);
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| 85 |
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| 86 | virtual
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| 87 | void BuildPhysicsTable(const G4ParticleDefinition&)
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| 88 | {}
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| 89 |
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| 90 | virtual
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| 91 | void DumpPhysicsTable(const G4ParticleDefinition&)
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| 92 | {G4cout << "G4IonsShenCrossSection: uses Shen formula"<<G4endl;}
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| 93 |
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| 94 | private:
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| 95 | const G4double upperLimit;
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| 96 | const G4double lowerLimit;
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| 97 | const G4double r0;
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| 98 |
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| 99 | G4double calEcmValue(const G4double, const G4double, const G4double);
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| 100 | G4double calCeValue(const G4double);
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| 101 | };
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| 102 |
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| 103 | #endif
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