00001 // 00002 // ******************************************************************** 00003 // * License and Disclaimer * 00004 // * * 00005 // * The Geant4 software is copyright of the Copyright Holders of * 00006 // * the Geant4 Collaboration. It is provided under the terms and * 00007 // * conditions of the Geant4 Software License, included in the file * 00008 // * LICENSE and available at http://cern.ch/geant4/license . These * 00009 // * include a list of copyright holders. * 00010 // * * 00011 // * Neither the authors of this software system, nor their employing * 00012 // * institutes,nor the agencies providing financial support for this * 00013 // * work make any representation or warranty, express or implied, * 00014 // * regarding this software system or assume any liability for its * 00015 // * use. Please see the license in the file LICENSE and URL above * 00016 // * for the full disclaimer and the limitation of liability. * 00017 // * * 00018 // * This code implementation is the result of the scientific and * 00019 // * technical work of the GEANT4 collaboration. * 00020 // * By using, copying, modifying or distributing the software (or * 00021 // * any work based on the software) you agree to acknowledge its * 00022 // * use in resulting scientific publications, and indicate your * 00023 // * acceptance of all terms of the Geant4 Software license. * 00024 // ******************************************************************** 00025 // 00026 // 00027 // GEANT4 tag $Name: not supported by cvs2svn $ 00028 // 00029 // 00030 // GEANT4 physics class: G4ChipsNeutronInelasticXS -- header file 00031 // Created: M.V. Kossov, CERN/ITEP(Moscow), 17-May-2009 00032 // The last update: M.V. Kossov, CERN/ITEP (Moscow) 21-May-2009 00033 // 00034 // **************************************************************************************** 00035 // Short description: Cross-sections extracted (by W.Pokorski) from the CHIPS package for 00036 // neutron-nuclear interactions. Original author: M. Kossov 00037 // ------------------------------------------------------------------------------------- 00038 // 00039 00040 00041 #ifndef G4ChipsNeutronInelasticXS_h 00042 #define G4ChipsNeutronInelasticXS_h 1 00043 00044 #include "G4ParticleTable.hh" 00045 #include "G4NucleiProperties.hh" 00046 #include <vector> 00047 #include "G4VCrossSectionDataSet.hh" 00048 00049 class G4ChipsNeutronInelasticXS : public G4VCrossSectionDataSet 00050 { 00051 00052 00053 public: 00054 00055 G4ChipsNeutronInelasticXS(); 00056 00057 ~G4ChipsNeutronInelasticXS(); 00058 00059 static const char* Default_Name() {return "ChipsNeutronInelasticXS";} 00060 00061 // At present momentum (pMom) in MeV/c, CS in mb (@@ Units) 00062 00063 virtual G4bool IsIsoApplicable(const G4DynamicParticle* Pt, G4int Z, G4int A, 00064 const G4Element* elm, 00065 const G4Material* mat ); 00066 00067 // At present momentum (pMom) in MeV/c, CS in mb (@@ Units) 00068 virtual G4double GetIsoCrossSection(const G4DynamicParticle*, G4int tgZ, G4int A, 00069 const G4Isotope* iso = 0, 00070 const G4Element* elm = 0, 00071 const G4Material* mat = 0); 00072 00073 virtual G4double GetChipsCrossSection(G4double momentum, G4int Z, G4int N, G4int pdg); 00074 00075 private: 00076 G4double CalculateCrossSection(G4int F, G4int I, G4int PDG, G4int Z, 00077 G4int N, G4double Momentum); 00078 00079 G4double CrossSectionLin(G4int targZ, G4int targN, G4double P); 00080 G4double CrossSectionLog(G4int targZ, G4int targN, G4double lP); 00081 G4double CrossSectionFormula(G4int targZ, G4int targN, G4double P, G4double lP); 00082 G4double EquLinearFit(G4double X, G4int N, G4double X0, G4double DX, G4double* Y); 00083 00084 // Body 00085 private: 00086 G4double lastSig; // Last value of the Cross Section 00087 G4double* lastLEN; // Pointer to the last array of LowEnergy cross sections 00088 G4double* lastHEN; // Pointer to the last array of HighEnergy cross sections 00089 G4double lastE; // Last used in the cross section Energy 00090 G4int lastPDG; // The last projectile PDG 00091 G4int lastN; // The last N of calculated nucleus 00092 G4int lastZ; // The last Z of calculated nucleus 00093 G4double lastP; // Last used in the cross section Momentum 00094 G4double lastTH; // Last value of the Momentum Threshold 00095 G4double lastCS; // Last value of the Cross Section 00096 G4int lastI; // The last position in the DAMDB 00097 G4double HEthresh; // High energy threshold parameter for the CS calculation 00098 std::vector<G4double*>* LEN; // Vector of pointers to LowEnNeutronCrossSection 00099 std::vector<G4double*>* HEN; // Vector of pointers to HighEnNeutronCrossSection 00100 }; 00101 00102 #endif