GarfieldDetectorConstruction.hh

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// $Id: GarfieldDetectorConstruction.hh 99992 2015-12-11 14:47:43Z dpfeiffe $
//
/// \file GarfieldDetectorConstruction.hh
/// \brief Definition of the GarfieldDetectorConstruction class
 
#ifndef GarfieldDetectorConstruction_h
#define GarfieldDetectorConstruction_h 1
 
#include "G4UserLimits.hh"
#include "G4VUserDetectorConstruction.hh"
#include "globals.hh"
 
class G4VPhysicalVolume;
class G4VLogicalVolume;
class G4Material;
class GarfieldG4FastSimulationModel;
class GarfieldMessenger;
 
/// Detector construction class to define materials and geometry.
/// The drift tube is a cylinder made of Al filled with Ar/CO2.
/// It has a thin window on the base that is adjacent to the absorber plate.
/// In the center of the cylinder is the anode wire made from Tungsten.
///
/// The primary particles interact in the absorber and produce secondary
/// particles, which enter the drift tube via the thin window.
 
class GarfieldDetectorConstruction : public G4VUserDetectorConstruction {
 public:
  GarfieldDetectorConstruction();
  virtual ~GarfieldDetectorConstruction();
 
 public:
  virtual G4VPhysicalVolume* Construct() override;
 
  // get methods
  const G4VPhysicalVolume* GetAbsorberPV() const { return fAbsorberPV; }
  const G4VPhysicalVolume* GetDriftTubePV() const { return fTubePV; }
  const G4VPhysicalVolume* GetGasPV() const { return fGasPV; }
  const G4VPhysicalVolume* GetWirePV() const { return fWirePV; }
  void SetAbsorberMaterial(G4String materialChoice);
  G4Material* AbsorberMaterialWithSingleIsotope(G4String name, G4String symbol,
                                                G4double density, G4int Z,
                                                G4int A);
 
 private:
  void DefineMaterials();
  G4VPhysicalVolume* DefineVolumes();
 
  G4VPhysicalVolume* fAbsorberPV = nullptr; // absorber physical volume
  G4VPhysicalVolume* fTubePV = nullptr;     // cathode physical volume
  G4VPhysicalVolume* fGasPV = nullptr;      // gas physical volume
  G4VPhysicalVolume* fWirePV = nullptr;     // wire physical volume
 
  G4Material* fAbsorberMaterial = nullptr;
  G4LogicalVolume* fAbsorberLV = nullptr;
 
  // option to activate checking of volumes overlaps
  G4bool fCheckOverlaps = true; 
 
  GarfieldG4FastSimulationModel* fGarfieldG4FastSimulationModel = nullptr;
  GarfieldMessenger* fGarfieldMessenger = nullptr;
};
 
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#endif