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 // $Id$ 00027 // 00028 // 20100506 M. Kelsey -- Move functionality of G4CascadeChannel here, 00029 // use as base class to G4CascadeFunctions<T>. 00030 // 20100512 M. Kelsey -- Make this templated on energy and multiplicity 00031 // binning, as base to new sampler. 00032 // 20100803 M. Kelsey -- Add print function for debugging. 00033 // 20110923 M. Kelsey -- Add optional ostream& argument to print() 00034 00035 #ifndef G4_CASCADE_SAMPLER_HH 00036 #define G4_CASCADE_SAMPLER_HH 00037 00038 #include "globals.hh" 00039 #include "G4CascadeInterpolator.hh" 00040 #include <iosfwd> 00041 #include <vector> 00042 00043 template <int NBINS, int NMULT> 00044 class G4CascadeSampler { 00045 public: 00046 enum { energyBins=NBINS, multBins=NMULT }; // For use in function arguments 00047 00048 G4CascadeSampler(const G4double (&ebins)[energyBins]) 00049 : interpolator(ebins), energyScale(ebins) {} 00050 00051 virtual ~G4CascadeSampler() {} 00052 00053 virtual G4double 00054 findCrossSection(double ke, const G4double (&xsec)[energyBins]) const; 00055 00056 virtual G4int 00057 findMultiplicity(G4double ke, const G4double xmult[][energyBins]) const; 00058 00059 virtual G4int 00060 findFinalStateIndex(G4int mult, G4double ke, const G4int index[], 00061 const G4double xsec[][energyBins]) const; 00062 00063 virtual void print(std::ostream& os) const; 00064 00065 private: 00066 // Optional start/stop arguments default to inclusive arrays 00067 void fillSigmaBuffer(G4double ke, const G4double x[][energyBins], 00068 G4int startBin=0, G4int stopBin=multBins) const; 00069 00070 G4int sampleFlat() const; 00071 00072 G4CascadeInterpolator<NBINS> interpolator; 00073 mutable std::vector<G4double> sigmaBuf; 00074 const G4double (&energyScale)[energyBins]; 00075 }; 00076 00077 #include "G4CascadeSampler.icc" 00078 00079 #endif /* G4_CASCADE_SAMPLER_HH */