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1 // 2 // ******************************************************************** 3 // * License and Disclaimer * 4 // * * 5 // * The Geant4 software is copyright of the Copyright Holders of * 6 // * the Geant4 Collaboration. It is provided under the terms and * 7 // * conditions of the Geant4 Software License, included in the file * 8 // * LICENSE and available at http://cern.ch/geant4/license . These * 9 // * include a list of copyright holders. * 10 // * * 11 // * Neither the authors of this software system, nor their employing * 12 // * institutes,nor the agencies providing financial support for this * 13 // * work make any representation or warranty, express or implied, * 14 // * regarding this software system or assume any liability for its * 15 // * use. Please see the license in the file LICENSE and URL above * 16 // * for the full disclaimer and the limitation of liability. * 17 // * * 18 // * This code implementation is the result of the scientific and * 19 // * technical work of the GEANT4 collaboration. * 20 // * By using, copying, modifying or distributing the software (or * 21 // * any work based on the software) you agree to acknowledge its * 22 // * use in resulting scientific publications, and indicate your * 23 // * acceptance of all terms of the Geant4 Software license. * 24 // ******************************************************************** 25 // 26 // 27 // J. M. Quesada (July 2009) based on G4GEMCoulombBarrierHE 28 // Coded strictly according to Furihata's GEM paper 29 // 30 #ifndef G4GEMCoulombBarrier_h 31 #define G4GEMCoulombBarrier_h 1 32 33 #include "G4CoulombBarrier.hh" 34 #include "globals.hh" 35 36 class G4Pow; 37 38 class G4GEMCoulombBarrier : public G4CoulombBarrier 39 { 40 public: 41 explicit G4GEMCoulombBarrier(G4int anA, G4int aZ); 42 43 ~G4GEMCoulombBarrier() override = default; 44 45 G4double GetCoulombBarrier(G4int ARes, G4int ZRes, G4double U) const override; 46 47 G4GEMCoulombBarrier(const G4GEMCoulombBarrier & right) = delete; 48 const G4GEMCoulombBarrier & operator= 49 (const G4GEMCoulombBarrier & right) = delete; 50 51 private: 52 53 G4double CalcCompoundRadius(G4int ARes) const; 54 55 G4Pow* g4calc; 56 G4double AejectOneThird; 57 }; 58 #endif 59 60