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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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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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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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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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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