/home/cern/BDSIM_new/include/BDSRfCavity.hh

/* BDSIM code.    Version 1.0
   Author: Grahame A. Blair, Royal Holloway, Univ. of London.
   Last modified 24.7.2002
   Copyright (c) 2002 by G.A.Blair.  ALL RIGHTS RESERVED. 
*/

#ifndef BDSRfCabity_h
#define BDSRfCavity_h

#include"globals.hh"

#include "BDSMaterials.hh"
#include "G4LogicalVolume.hh"

#include "G4FieldManager.hh"
#include "G4ChordFinder.hh"
#include "G4Mag_UsualEqRhs.hh"
#include "G4UserLimits.hh"
#include "G4VisAttributes.hh"
#include "G4UniformMagField.hh"
#include "G4PVPlacement.hh"               

#include "G4UniformElectricField.hh"
//#include "G4ClassicalRK4.hh"
#include "G4MagErrorStepper.hh"
#include "G4EqMagElectricField.hh"
#include "G4TransportationManager.hh"

#include "BDSMultipole.hh"

class BDSRfCavity :public BDSMultipole
{
  public:
  BDSRfCavity(G4String aName, G4double aLength,G4double bpRad, G4double grad, 
                                                        G4String aMaterial = "");
    ~BDSRfCavity();

  protected:

  private:

  //  void BuildOuterLogicalVolume();
  void BuildMarkerFieldAndStepper();
  //void BuildMarkerLogicalVolume();

  G4VisAttributes* SetVisAttributes();

  G4double itsGrad; // longitudinal E field grad in MV / m

  // field related objects:
  G4MagErrorStepper* itsStepper;
  G4UniformElectricField* itsField;
  G4ChordFinder*          fChordFinder ;
  G4MagIntegratorStepper* fStepper ;
  G4MagInt_Driver*        fIntgrDriver;
  G4FieldManager* fieldManager;

};

#endif

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