include/Geant4/GFlashHomoShowerParameterisation.hh

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0025 //
0026 //
0027 //
0028 //
0029 // ---------------------------------------------------------------
0030 //  GEANT 4 class header file
0031 //
0032 //  GFlashHomoShowerParameterisation
0033 //
0034 //  Class description:
0035 //
0036 //  GFlash homogeneous shower parameterisation.
0037
0038 // Author: Joanna Weng - 02.2004
0039 // ---------------------------------------------------------------
0040 #ifndef GFlashHomoShowerParameterisation_h
0041 #define GFlashHomoShowerParameterisation_h 1
0042
0043 #include "globals.hh"
0044 #include "GVFlashHomoShowerTuning.hh"
0045 #include "GVFlashShowerParameterisation.hh"
0046
0047 class G4Material;
0048
0049 class GFlashHomoShowerParameterisation : public GVFlashShowerParameterisation
0050 {
0051   public:  // with description
0052
0053     GFlashHomoShowerParameterisation(G4Material * aMat,
0054                                      GVFlashHomoShowerTuning * aPar = 0);
0055     ~GFlashHomoShowerParameterisation();
0056
0057     void ComputeRadialParameters(G4double y, G4double Tau);
0058     void GenerateLongitudinalProfile(G4double Energy);
0059     void ComputeZAX0EFFetc();
0060
0061     G4double IntegrateEneLongitudinal(G4double LongitudinalStep);
0062     G4double IntegrateNspLongitudinal(G4double LongitudinalStep);
0063     G4double ComputeTau(G4double LongitudinalPosition);
0064
0065     G4double GeneratePhi();
0066     G4double GenerateRadius(G4int ispot, G4double Energy,
0067     G4double LongitudinalPosition);
0068     G4double GenerateExponential(G4double Energy);
0069     void SetMaterial(G4Material *mat);
0070
0071     inline G4double GetAveR99() {return (3.5 * Rm);}
0072     inline G4double GetAveR90() {return (1.5 * Rm);} //ok
0073
0074     inline G4double GetAveTmx() {return (X0 * std::exp(AveLogTmaxh));}
0075     inline G4double GetAveT99() {return (X0 * AveLogTmaxh/(AveLogAlphah-1.00));}
0076     inline G4double GetAveT90() {return (2.5* X0*std::exp( AveLogTmaxh) );}
0077
0078     inline   G4double GetNspot(){ return NSpot;}
0079     inline   G4double GetX0(){return X0;}
0080     inline   G4double GetEc(){return Ec;}
0081     inline   G4double GetRm(){return Rm;}
0082
0083   private:
0084
0085     G4Material *material;
0086
0087     //Resolution
0088     G4double ConstantResolution;
0089     G4double NoiseResolution;
0090     G4double SamplingResolution;
0091
0092     // parametrization parameters
0093     GVFlashHomoShowerTuning * thePar;
0094
0095     // Cashed parameters:
0096     // Longitudinal Coefficients for a homogeneous calo
0097     G4double ParAveT1;
0098     G4double ParAveA1,ParAveA2,ParAveA3;
0099     G4double ParSigLogT1,ParSigLogT2;
0100     G4double ParSigLogA1,ParSigLogA2;
0101     G4double ParRho1,ParRho2;
0102
0103     void ComputeLongitudinalParameters(G4double y);
0104     void GenerateEnergyProfile(G4double y);
0105     void GenerateNSpotProfile(G4double y);
0106
0107     // Radial Coefficients
0108     G4double ParRC1,ParRC2,ParRC3,ParRC4;
0109     G4double ParWC1,ParWC2,ParWC3;
0110     G4double ParWC4,ParWC5,ParWC6;
0111     G4double ParRT1,ParRT2,ParRT3,ParRT4;
0112     G4double ParRT5,ParRT6;
0113
0114     // Spot multiplicity Coefficients
0115     G4double ParSpotT1,ParSpotT2,ParSpotA1, ParSpotA2;
0116     G4double ParSpotN1,ParSpotN2;
0117
0118     // PARAMETRISATION variables (Energy & position dependent)
0119     // Longitudinal
0120     // homogeneous
0121     G4double AveLogAlphah,AveLogTmaxh;
0122     G4double SigmaLogAlphah,SigmaLogTmaxh;
0123     G4double Rhoh;
0124     G4double Alphah,Tmaxh,Betah;
0125
0126     // Multiplicity
0127     G4double NSpot,AlphaNSpot,TNSpot,BetaNSpot;
0128
0129     //Radial
0130     G4double RadiusCore, WeightCore,RadiusTail;
0131 };
0132
0133 #endif
0134