Geant4 Cross Reference |
1 // 1 2 // ******************************************* 3 // * License and Disclaimer 4 // * 5 // * The Geant4 software is copyright of th 6 // * the Geant4 Collaboration. It is provided 7 // * conditions of the Geant4 Software License 8 // * LICENSE and available at http://cern.ch/ 9 // * include a list of copyright holders. 10 // * 11 // * Neither the authors of this software syst 12 // * institutes,nor the agencies providing fin 13 // * work make any representation or warran 14 // * regarding this software system or assum 15 // * use. Please see the license in the file 16 // * for the full disclaimer and the limitatio 17 // * 18 // * This code implementation is the result 19 // * technical work of the GEANT4 collaboratio 20 // * By using, copying, modifying or distri 21 // * any work based on the software) you ag 22 // * use in resulting scientific publicati 23 // * acceptance of all terms of the Geant4 Sof 24 // ******************************************* 25 // 26 ////////////////////////////////////////////// 27 // 28 // Rough model describing a gamma function dis 29 // transition radiation. XTR is considered to 30 // Thicknesses of plates and gas gaps are dist 31 // distribution. x are thicknesses of plates o 32 // 33 // p(x) = (alpha/<x>)^alpha * x^(alpha-1) * st 34 // 35 // G(alpha) is Euler's gamma function. 36 // Plates have mean <x> = fPlateThick > 0 and 37 // Gas gaps have mean <x> = fGasThick > 0 and 38 // We suppose that: 39 // formation zone ~ mean thickness << absorpti 40 // for each material and in the range 1-100 ke 41 // interference effects in radiator stack (Get 42 // 43 // History: 44 // 45 // 03.10.05 V. Grichine, first version 46 // 47 48 #ifndef G4XTRGammaRadModel_h 49 #define G4XTRGammaRadModel_h 1 50 51 #include "G4LogicalVolume.hh" 52 #include "G4Material.hh" 53 #include "G4VXTRenergyLoss.hh" 54 55 class G4XTRGammaRadModel : public G4VXTRenergy 56 { 57 public: 58 explicit G4XTRGammaRadModel(G4LogicalVolume* 59 G4Material*, G4M 60 G4int, 61 const G4String& 62 ~G4XTRGammaRadModel(); 63 64 void ProcessDescription(std::ostream&) const 65 void DumpInfo() const override { ProcessDesc 66 67 G4double GetStackFactor(G4double energy, G4d 68 G4double varAngle) o 69 }; 70 71 #endif 72