| 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 G4FTFCrossSection_h
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| 27 | #define G4FTFCrossSection_h 1
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| 28 | //
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| 29 | // $Id: G4FTFCrossSection.hh,v 1.2 2007/04/24 10:37:10 gunter Exp $
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| 30 | // GEANT4 tag $Name: geant4-09-01-patch-02 $
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| 31 | //
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| 32 | #include "G4Proton.hh"
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| 33 | class G4FTFCrossSection
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| 34 | {
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| 35 |
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| 36 | public:
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| 37 | G4FTFCrossSection(const G4ParticleDefinition * , G4double );
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| 38 |
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| 39 | ~G4FTFCrossSection();
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| 40 |
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| 41 | void SethNcmsEnergy(const G4double s);
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| 42 | void SetTotalCrossSection(const G4double Xtotal);
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| 43 | void SetElastisCrossSection(const G4double Xelastic);
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| 44 | void SetInelasticCrossSection(const G4double Xinelastic);
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| 45 | void SetSlope(const G4double Slope);
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| 46 | void SetGamma0(const G4double Gamma0);
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| 47 |
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| 48 | G4double GetTotalCrossSection();
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| 49 | G4double GetElasticCrossSection();
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| 50 | G4double GetInelasticCrossSection();
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| 51 |
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| 52 | G4double GetSlope();
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| 53 |
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| 54 | G4double GetInelasticProbability(const G4double impactsquare);
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| 55 |
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| 56 | // private:
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| 57 |
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| 58 | G4FTFCrossSection();
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| 59 |
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| 60 | G4double GammaElastic(const G4double impactsquare) {return (FTFGamma0 * std::exp(-FTFSlope * impactsquare));};
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| 61 |
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| 62 | G4double FTFhNcmsEnergy; // Uzhi Initial hN CMS energy
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| 63 | G4double FTFXtotal;
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| 64 | G4double FTFXelastic;
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| 65 | G4double FTFXinelastic;
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| 66 | G4double FTFSlope;
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| 67 | G4double FTFGamma0;
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| 68 |
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| 69 | };
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| 70 |
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| 71 | inline void G4FTFCrossSection::SethNcmsEnergy(const G4double s) {FTFhNcmsEnergy = s;}
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| 72 | inline void G4FTFCrossSection::SetTotalCrossSection(const G4double Xtotal) {FTFXtotal = Xtotal;}
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| 73 | inline void G4FTFCrossSection::SetElastisCrossSection(const G4double Xelastic) {FTFXelastic = Xelastic;}
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| 74 | inline void G4FTFCrossSection::SetInelasticCrossSection(const G4double Xinelastic) {FTFXinelastic = Xinelastic;}
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| 75 | inline void G4FTFCrossSection::SetSlope(const G4double Slope) {FTFSlope = 12.84/Slope;}
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| 76 | inline void G4FTFCrossSection::SetGamma0(const G4double Gamma0) {FTFGamma0 = Gamma0;}
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| 77 |
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| 78 | inline G4double G4FTFCrossSection::GetTotalCrossSection() {return FTFXtotal;}
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| 79 | inline G4double G4FTFCrossSection::GetElasticCrossSection() {return FTFXelastic;}
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| 80 | inline G4double G4FTFCrossSection::GetInelasticCrossSection() {return FTFXinelastic;}
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| 81 |
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| 82 | inline G4double G4FTFCrossSection::GetSlope() {return FTFSlope;}
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| 83 |
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| 84 | inline G4double G4FTFCrossSection::GetInelasticProbability( const G4double impactsquare)
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| 85 | {
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| 86 | G4double Gamma = GammaElastic(impactsquare);
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| 87 | return 2 * Gamma - Gamma *Gamma;
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| 88 | }
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| 89 |
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| 90 | #endif
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