include/Geant4/G4ChipsProtonInelasticXS.hh

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0025 //
0026 // GEANT4 physics class: G4ChipsProtonInelasticXS -- header file
0027 // Created: M.V. Kossov, CERN/ITEP(Moscow), 20-Dec-01
0028 // The last update: M.V. Kossov, CERN/ITEP (Moscow) 17-May-02
0029 //
0030 // ****************************************************************************************
0031 // Short description: Cross-sections extracted (by W.Pokorski) from the CHIPS package for
0032 // proton-nuclear  interactions. Original author: M. Kossov
0033 // -------------------------------------------------------------------------------------
0034 //
0035
0036 #ifndef G4ChipsProtonInelasticXS_h
0037 #define G4ChipsProtonInelasticXS_h 1
0038
0039 #include "G4ParticleTable.hh"
0040 #include "G4NucleiProperties.hh"
0041 #include <vector>
0042 #include "G4VCrossSectionDataSet.hh"
0043
0044 class G4ChipsProtonInelasticXS : public G4VCrossSectionDataSet
0045 {
0046
0047 public:
0048
0049   G4ChipsProtonInelasticXS();
0050
0051   ~G4ChipsProtonInelasticXS();
0052
0053   static const char* Default_Name() {return "ChipsProtonInelasticXS";}
0054
0055   virtual void CrossSectionDescription(std::ostream&) const;
0056
0057   virtual G4bool IsIsoApplicable(const G4DynamicParticle* Pt, G4int Z, G4int A,
0058                  const G4Element* elm,
0059                  const G4Material* mat );
0060
0061   // At present momentum (pMom) in MeV/c, CS in mb (@@ Units)
0062   virtual G4double GetIsoCrossSection(const G4DynamicParticle*, G4int tgZ, G4int A,
0063                       const G4Isotope* iso = 0,
0064                       const G4Element* elm = 0,
0065                       const G4Material* mat = 0);
0066
0067   virtual G4double GetChipsCrossSection(G4double momentum, G4int Z, G4int N, G4int pdg);
0068
0069 private:
0070   G4double CalculateCrossSection(G4int F, G4int I, G4int PDG, G4int Z,
0071                                  G4int N, G4double Momentum);
0072
0073   G4double CrossSectionLin(G4int targZ, G4int targN, G4double P);
0074   G4double CrossSectionLog(G4int targZ, G4int targN, G4double lP);
0075   G4double CrossSectionFormula(G4int targZ, G4int targN, G4double P, G4double lP);
0076   G4double ThresholdMomentum(G4int targZ, G4int targN); // Threshold of pA reaction (MeV/c)
0077   G4double EquLinearFit(G4double X, G4int N, G4double X0, G4double DX, G4double* Y);
0078 // Body
0079 private:
0080   G4double* lastLEN; // Pointer to the last array of LowEnergy cross sections
0081   G4double* lastHEN; // Pointer to the last array of HighEnergy cross sections
0082   G4int     lastN;   // The last N of calculated nucleus
0083   G4int     lastZ;   // The last Z of calculated nucleus
0084   G4double  lastP;   // Last used in the cross section Momentum
0085   G4double  lastTH;  // Last value of the Momentum Threshold
0086   G4double  lastCS;  // Last value of the Cross Section
0087   G4int     lastI;   // The last position in the DAMDB
0088   std::vector<G4double*>* LEN;  // Vector of pointers to LowEnProtonCrossSection
0089   std::vector<G4double*>* HEN;  // Vector of pointers to HighEnProtonCrossSection
0090
0091   G4int j=0;                    // A#0f Z/N-records already tested in AMDB
0092   std::vector <G4int> colN;  // Vector of N for calculated nuclei (isotops)
0093   std::vector <G4int> colZ;  // Vector of Z for calculated nuclei (isotops)
0094   std::vector <G4double> colP;  // Vector of last momenta for the reaction
0095   std::vector <G4double> colTH; // Vector of energy thresholds for the reaction
0096   std::vector <G4double> colCS; // Vector of last cross sections for the reaction
0097
0098 };
0099
0100 #endif