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Geant4/processes/electromagnetic/xrays/include/G4XTRGammaRadModel.hh

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Diff markup

Differences between /processes/electromagnetic/xrays/include/G4XTRGammaRadModel.hh (Version 11.3.0) and /processes/electromagnetic/xrays/include/G4XTRGammaRadModel.hh (Version 11.1.2)


  1 //                                                  1 //
  2 // *******************************************      2 // ********************************************************************
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  7 // * conditions of the Geant4 Software License      7 // * conditions of the Geant4 Software License,  included in the file *
  8 // * LICENSE and available at  http://cern.ch/      8 // * LICENSE and available at  http://cern.ch/geant4/license .  These *
  9 // * include a list of copyright holders.           9 // * include a list of copyright holders.                             *
 10 // *                                               10 // *                                                                  *
 11 // * Neither the authors of this software syst     11 // * Neither the authors of this software system, nor their employing *
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 13 // * work  make  any representation or  warran     13 // * work  make  any representation or  warranty, express or implied, *
 14 // * regarding  this  software system or assum     14 // * regarding  this  software system or assume any liability for its *
 15 // * use.  Please see the license in the file      15 // * use.  Please see the license in the file  LICENSE  and URL above *
 16 // * for the full disclaimer and the limitatio     16 // * for the full disclaimer and the limitation of liability.         *
 17 // *                                               17 // *                                                                  *
 18 // * This  code  implementation is the result      18 // * This  code  implementation is the result of  the  scientific and *
 19 // * technical work of the GEANT4 collaboratio     19 // * technical work of the GEANT4 collaboration.                      *
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 24 // *******************************************     24 // ********************************************************************
 25 //                                                 25 //
 26 //////////////////////////////////////////////     26 ///////////////////////////////////////////////////////////////////////////
 27 //                                                 27 //
 28 // Rough model describing a gamma function dis     28 // Rough model describing a gamma function distributed radiator of X-ray
 29 // transition radiation. XTR is considered to      29 // transition radiation. XTR is considered to flux after radiator!
 30 // Thicknesses of plates and gas gaps are dist     30 // Thicknesses of plates and gas gaps are distributed according to gamma
 31 // distribution. x are thicknesses of plates o     31 // distribution. x are thicknesses of plates or gas gaps:
 32 //                                                 32 //
 33 // p(x) = (alpha/<x>)^alpha * x^(alpha-1) * st     33 // p(x) = (alpha/<x>)^alpha * x^(alpha-1) * std::exp(-alpha*x/<x>) / G(alpha)
 34 //                                                 34 //
 35 // G(alpha) is Euler's gamma function.             35 // G(alpha) is Euler's gamma function.
 36 // Plates have mean <x> = fPlateThick > 0 and      36 // Plates have mean <x> = fPlateThick > 0 and power alpha = fAlphaPlate > 0 :
 37 // Gas gaps have mean <x> = fGasThick > 0 and      37 // Gas gaps have mean <x> = fGasThick > 0 and power alpha = fAlphaGas > 0 :
 38 // We suppose that:                                38 // We suppose that:
 39 // formation zone ~ mean thickness << absorpti     39 // formation zone ~ mean thickness << absorption length
 40 // for each material and in the range 1-100 ke     40 // for each material and in the range 1-100 keV. This allows us to simplify
 41 // interference effects in radiator stack (Get     41 // interference effects in radiator stack (GetStackFactor method).
 42 //                                                 42 //
 43 // History:                                        43 // History:
 44 //                                                 44 //
 45 // 03.10.05 V. Grichine, first version             45 // 03.10.05 V. Grichine, first version
 46 //                                                 46 //
 47                                                    47 
 48 #ifndef G4XTRGammaRadModel_h                       48 #ifndef G4XTRGammaRadModel_h
 49 #define G4XTRGammaRadModel_h 1                     49 #define G4XTRGammaRadModel_h 1
 50                                                    50 
 51 #include "G4LogicalVolume.hh"                      51 #include "G4LogicalVolume.hh"
 52 #include "G4Material.hh"                           52 #include "G4Material.hh"
 53 #include "G4VXTRenergyLoss.hh"                     53 #include "G4VXTRenergyLoss.hh"
 54                                                    54 
 55 class G4XTRGammaRadModel : public G4VXTRenergy     55 class G4XTRGammaRadModel : public G4VXTRenergyLoss
 56 {                                                  56 {
 57  public:                                           57  public:
 58   explicit G4XTRGammaRadModel(G4LogicalVolume*     58   explicit G4XTRGammaRadModel(G4LogicalVolume* anEnvelope, G4double, G4double,
 59                               G4Material*, G4M     59                               G4Material*, G4Material*, G4double, G4double,
 60                               G4int,               60                               G4int,
 61                               const G4String&      61                               const G4String& processName = "XTRgammaRadiator");
 62   ~G4XTRGammaRadModel();                           62   ~G4XTRGammaRadModel();
 63                                                    63 
 64   void ProcessDescription(std::ostream&) const     64   void ProcessDescription(std::ostream&) const override;
 65   void DumpInfo() const override { ProcessDesc     65   void DumpInfo() const override { ProcessDescription(G4cout); };
 66                                                    66 
 67   G4double GetStackFactor(G4double energy, G4d     67   G4double GetStackFactor(G4double energy, G4double gamma,
 68                           G4double varAngle) o     68                           G4double varAngle) override;
 69 };                                                 69 };
 70                                                    70 
 71 #endif                                             71 #endif
 72                                                    72