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0001 //
0002 // ********************************************************************
0003 // * License and Disclaimer                                           *
0004 // *                                                                  *
0005 // * The  Geant4 software  is  copyright of the Copyright Holders  of *
0006 // * the Geant4 Collaboration.  It is provided  under  the terms  and *
0007 // * conditions of the Geant4 Software License,  included in the file *
0008 // * LICENSE and available at  http://cern.ch/geant4/license .  These *
0009 // * include a list of copyright holders.                             *
0010 // *                                                                  *
0011 // * Neither the authors of this software system, nor their employing *
0012 // * institutes,nor the agencies providing financial support for this *
0013 // * work  make  any representation or  warranty, express or implied, *
0014 // * regarding  this  software system or assume any liability for its *
0015 // * use.  Please see the license in the file  LICENSE  and URL above *
0016 // * for the full disclaimer and the limitation of liability.         *
0017 // *                                                                  *
0018 // * This  code  implementation is the result of  the  scientific and *
0019 // * technical work of the GEANT4 collaboration.                      *
0020 // * By using,  copying,  modifying or  distributing the software (or *
0021 // * any work based  on the software)  you  agree  to acknowledge its *
0022 // * use  in  resulting  scientific  publications,  and indicate your *
0023 // * acceptance of all terms of the Geant4 Software license.          *
0024 // ********************************************************************
0025 //
0026 /// \file XTRTransparentRegRadModel.hh
0027 /// \brief Definition of the XTRTransparentRegRadModel class
0028 
0029 // Process describing a radiator of X-ray transition radiation.
0030 // Thicknesses of plates and gas gaps are fixed.
0031 // We suppose that:
0032 // formation zone ~ mean thickness << absorption length
0033 // for each material and in the range 1-100 keV. This allows us to simplify
0034 // interference effects in radiator stack (GetStackFactor method).
0035 //
0036 //
0037 // History:
0038 //
0039 // 05.04.05 V. Grichine, first version
0040 //
0041 
0042 #ifndef XTRTransparentRegRadModel_h
0043 #define XTRTransparentRegRadModel_h 1
0044 
0045 #include "G4VXTRenergyLoss.hh"
0046 
0047 class XTRTransparentRegRadModel : public G4VXTRenergyLoss
0048 {
0049   public:
0050     XTRTransparentRegRadModel(G4LogicalVolume* anEnvelope, G4Material*, G4Material*, G4double,
0051                               G4double, G4int,
0052                               const G4String& processName = "XTRTransparentRegRadModel");
0053     ~XTRTransparentRegRadModel();
0054 
0055     // reimplementation of base class function in analytical way
0056 
0057     G4double SpectralXTRdEdx(G4double energy);
0058 
0059     // Pure virtual function from base class
0060 
0061     G4double GetStackFactor(G4double energy, G4double gamma, G4double varAngle);
0062 };
0063 
0064 #endif