include/Geant4/G4ChipsNeutronInelasticXS.hh

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0025 //
0026 // GEANT4 physics class: G4ChipsNeutronInelasticXS -- header file
0027 // Created: M.V. Kossov, CERN/ITEP(Moscow), 17-May-2009
0028 // The last update: M.V. Kossov, CERN/ITEP (Moscow) 21-May-2009
0029 //
0030 // ****************************************************************************************
0031 // Short description: Cross-sections extracted (by W.Pokorski) from the CHIPS package for
0032 // neutron-nuclear  interactions. Original author: M. Kossov
0033 // -------------------------------------------------------------------------------------
0034 //
0035
0036
0037 #ifndef G4ChipsNeutronInelasticXS_h
0038 #define G4ChipsNeutronInelasticXS_h 1
0039
0040 #include "G4ParticleTable.hh"
0041 #include "G4NucleiProperties.hh"
0042 #include <vector>
0043 #include "G4VCrossSectionDataSet.hh"
0044
0045 class G4ChipsNeutronInelasticXS : public G4VCrossSectionDataSet
0046 {
0047
0048
0049 public:
0050
0051   G4ChipsNeutronInelasticXS();
0052
0053   ~G4ChipsNeutronInelasticXS();
0054
0055   static const char* Default_Name() {return "ChipsNeutronInelasticXS";}
0056
0057   virtual void CrossSectionDescription(std::ostream&) const;
0058
0059   // At present momentum (pMom) in MeV/c, CS in mb (@@ Units)
0060
0061   virtual G4bool IsIsoApplicable(const G4DynamicParticle* Pt, G4int Z, G4int A,
0062                  const G4Element* elm,
0063                  const G4Material* mat );
0064
0065   // At present momentum (pMom) in MeV/c, CS in mb (@@ Units)
0066   virtual G4double GetIsoCrossSection(const G4DynamicParticle*, G4int tgZ, G4int A,
0067                       const G4Isotope* iso = 0,
0068                       const G4Element* elm = 0,
0069                       const G4Material* mat = 0);
0070
0071   virtual G4double GetChipsCrossSection(G4double momentum, G4int Z, G4int N, G4int pdg);
0072
0073 private:
0074   G4double CalculateCrossSection(G4int F, G4int I, G4int PDG, G4int Z,
0075                                  G4int N, G4double Momentum);
0076
0077   G4double CrossSectionLin(G4int targZ, G4int targN, G4double P);
0078   G4double CrossSectionLog(G4int targZ, G4int targN, G4double lP);
0079   G4double CrossSectionFormula(G4int targZ, G4int targN, G4double P, G4double lP);
0080   G4double EquLinearFit(G4double X, G4int N, G4double X0, G4double DX, G4double* Y);
0081
0082 // Body
0083 private:
0084   G4double* lastLEN; // Pointer to the last array of LowEnergy cross sections
0085   G4double* lastHEN; // Pointer to the last array of HighEnergy cross sections
0086   G4int     lastN;   // The last N of calculated nucleus
0087   G4int     lastZ;   // The last Z of calculated nucleus
0088   G4double  lastP;   // Last used in the cross section Momentum
0089   G4double  lastTH;  // Last value of the Momentum Threshold
0090   G4double  lastCS;  // Last value of the Cross Section
0091   G4int     lastI;   // The last position in the DAMDB
0092   G4double  HEthresh;  // High energy threshold parameter for the CS calculation
0093   std::vector<G4double*>* LEN;  // Vector of pointers to LowEnNeutronCrossSection
0094   std::vector<G4double*>* HEN;  // Vector of pointers to HighEnNeutronCrossSection
0095
0096  G4int j=0;                     // A#0f Z/N-records already tested in AMDB
0097  std::vector <G4int> colN;  // Vector of N for calculated nuclei (isotops)
0098  std::vector <G4int> colZ;  // Vector of Z for calculated nuclei (isotops)
0099  std::vector <G4double> colP;  // Vector of last momenta for the reaction
0100  std::vector <G4double> colTH; // Vector of energy thresholds for the reaction
0101  std::vector <G4double> colCS; // Vector of last cross sections for the reaction
0102
0103 };
0104
0105 #endif