/scratch0/jsnuveri/BDSIM/BDSIMgit/bdsim/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 BDSRFCAVITY_H
#define BDSRFCAVITY_H

#include "BDSMagnet.hh"
#include "BDSTiltOffset.hh"

#include "globals.hh" // geant4 types / globals
#include "G4ChordFinder.hh"
#include "G4EqMagElectricField.hh"
#include "G4FieldManager.hh"
#include "G4LogicalVolume.hh"
#include "G4MagErrorStepper.hh"
#include "G4UserLimits.hh"
#include "G4UniformElectricField.hh"

struct BDSBeamPipeInfo;
struct BDSMagnetOuterInfo;

class BDSRfCavity: public BDSMagnet
{
  public:
  BDSRfCavity(G4String           name,
              G4double           length,
              G4double           grad,
              BDSBeamPipeInfo*   beamPipeInfoIn,
              BDSMagnetOuterInfo magnetOuterInfo,
              BDSTiltOffset      tiltOffset = BDSTiltOffset());
  ~BDSRfCavity(){;};
  
  private:

  virtual void BuildBPFieldAndStepper();

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

  // field related objects:
  G4UniformElectricField* itsEField;
  G4ChordFinder*          fChordFinder ;
  G4MagIntegratorStepper* fStepper ;
  G4MagInt_Driver*        fIntgrDriver;
};

#endif

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