// This code implementation is the intellectual property of
// the GEANT4 collaboration.
//
// By copying, distributing or modifying the Program (or any work
// based on the Program) you indicate your acceptance of this statement,
// and all its terms.
//
// $Id: Em1DetectorConstruction.hh,v 1.2 1999/12/15 14:48:52 gunter Exp $
// GEANT4 tag $Name: geant4-01-01 $
//
// 

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#ifndef Em1DetectorConstruction_h
#define Em1DetectorConstruction_h 1

#include "G4VUserDetectorConstruction.hh"
#include "globals.hh"

class G4LogicalVolume;
class G4Material;
class G4UniformMagField;
class Em1DetectorMessenger;

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class Em1DetectorConstruction : public G4VUserDetectorConstruction
{
  public:
  
    Em1DetectorConstruction();
   ~Em1DetectorConstruction();

  public:
  
     G4VPhysicalVolume* Construct();
     
     void SetSize     (G4double);              
     void SetMaterial (G4String);            
     void SetMagField (G4double);

     void UpdateGeometry();
     
  public:
  
     const
     G4VPhysicalVolume* GetWorld()      {return pBox;};           
                    
     G4double           GeSize()        {return BoxSize;};      
     G4Material*        GetMaterial()   {return aMaterial;};
     
     void               PrintParameters();
                       
  private:
  
     G4VPhysicalVolume*    pBox;
     G4LogicalVolume*      lBox;
     
     G4double              BoxSize;
     G4Material*           aMaterial;     
     G4UniformMagField*    magField;
     
     Em1DetectorMessenger* detectorMessenger;

  private:
    
     void               DefineMaterials();
     G4VPhysicalVolume* ConstructVolumes();     
};

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#endif