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// $Id: G4TransparentRegXTRadiator.hh,v 1.2 2006/06/29 19:55:49 gunter Exp $
// GEANT4 tag $Name: geant4-09-03 $
//
// 
///////////////////////////////////////////////////////////////////////////
// 
// Process describing a radiator of X-ray transition radiation.  
// Thicknesses of plates and gas gaps are fixed.
// We suppose that:
// formation zone ~ mean thickness << absorption length
// for each material and in the range 1-100 keV. This allows us to simplify
// interference effects in radiator stack (GetStackFactor method).
// 
// 
// History:
//
// 05.04.05 V. Grichine, first version 
//


#ifndef G4TransparentRegXTRadiator_h
#define G4TransparentRegXTRadiator_h 1

#include "G4VXTRenergyLoss.hh"

class G4TransparentRegXTRadiator : public G4VXTRenergyLoss
{
public:

  G4TransparentRegXTRadiator (G4LogicalVolume *anEnvelope,G4Material*,G4Material*,
                        G4double,G4double,G4int,
                        const G4String & processName = "TransparentRegXTRadiator");
  ~G4TransparentRegXTRadiator ();

  // reimplementation of base class function in analytical way

  G4double SpectralXTRdEdx(G4double energy);

  // Pure virtual function from base class

  G4double GetStackFactor( G4double energy, G4double gamma, G4double varAngle);
};

#endif
