HadrontherapyDetectorROGeometry.cc

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// Hadrontherapy advanced example for Geant4
// See more at: https://twiki.cern.ch/twiki/bin/view/Geant4/AdvancedExamplesHadrontherapy

#include "G4UnitsTable.hh"
#include "G4SystemOfUnits.hh"
#include "G4LogicalVolume.hh"
#include "G4VPhysicalVolume.hh"
#include "G4PVPlacement.hh"
#include "G4PVReplica.hh"
#include "G4Box.hh"
#include "G4ThreeVector.hh"
#include "G4Material.hh"
#include "G4NistManager.hh"
#include "G4GeometryManager.hh"
#include "G4SolidStore.hh"
#include "G4LogicalVolumeStore.hh"



#include "G4SDManager.hh"
#include "G4RunManager.hh"

#include "G4PhysicalVolumeStore.hh"

#include "G4ThreeVector.hh"

#include "globals.hh"
#include "G4Transform3D.hh"
#include "G4RotationMatrix.hh"
#include "G4Colour.hh"
#include "G4UserLimits.hh"

#include "G4VisAttributes.hh"

#include "HadrontherapyDetectorROGeometry.hh"
#include "HadrontherapyDummySD.hh"
#include "HadrontherapyDetectorSD.hh"

HadrontherapyDetectorROGeometry::HadrontherapyDetectorROGeometry(G4String aString)
  : G4VUserParallelWorld(aString),RODetector(0),RODetectorXDivision(0),
    RODetectorYDivision(0),RODetectorZDivision(0),worldLogical(0),RODetectorLog(0),
    RODetectorXDivisionLog(0),RODetectorYDivisionLog(0),RODetectorZDivisionLog(0),
    sensitiveLogicalVolume(0)
{
  isBuilt = false;
  isInitialized = false;
}


void HadrontherapyDetectorROGeometry::Initialize(G4ThreeVector pos,
                         G4double detectorDimX,
                         G4double detectorDimY,
                         G4double detectorDimZ,
                         G4int numberOfVoxelsX,
                         G4int numberOfVoxelsY,
                         G4int numberOfVoxelsZ)
{  
  detectorToWorldPosition = pos;
  detectorSizeX = detectorDimX;
  detectorSizeY= detectorDimY;
  detectorSizeZ=detectorDimZ;
  numberOfVoxelsAlongX=numberOfVoxelsX;
  numberOfVoxelsAlongY=numberOfVoxelsY;
  numberOfVoxelsAlongZ=numberOfVoxelsZ;

  isInitialized = true;


  
}

void HadrontherapyDetectorROGeometry::UpdateROGeometry()
{
  //Nothing happens if the RO geometry is not built. But parameters are properly set.
  if (!isBuilt)
    {
      //G4Exception("HadrontherapyDetectorROGeometry::UpdateROGeometry","had001",
      //          JustWarning,"Cannot update geometry before it is built");
      return;
    }
 
  //1) Update the dimensions of the G4Boxes
  G4double halfDetectorSizeX = detectorSizeX;
  G4double halfDetectorSizeY = detectorSizeY;
  G4double halfDetectorSizeZ = detectorSizeZ;

  RODetector->SetXHalfLength(halfDetectorSizeX);
  RODetector->SetYHalfLength(halfDetectorSizeY);
  RODetector->SetZHalfLength(halfDetectorSizeZ);

  G4double halfXVoxelSizeX = halfDetectorSizeX/numberOfVoxelsAlongX;
  G4double halfXVoxelSizeY = halfDetectorSizeY;
  G4double halfXVoxelSizeZ = halfDetectorSizeZ;
  G4double voxelXThickness = 2*halfXVoxelSizeX;
  
  RODetectorXDivision->SetXHalfLength(halfXVoxelSizeX);
  RODetectorXDivision->SetYHalfLength(halfXVoxelSizeY);
  RODetectorXDivision->SetZHalfLength(halfXVoxelSizeZ);

  G4double halfYVoxelSizeX = halfXVoxelSizeX;
  G4double halfYVoxelSizeY = halfDetectorSizeY/numberOfVoxelsAlongY;
  G4double halfYVoxelSizeZ = halfDetectorSizeZ;
  G4double voxelYThickness = 2*halfYVoxelSizeY;

  RODetectorYDivision->SetXHalfLength(halfYVoxelSizeX);
  RODetectorYDivision->SetYHalfLength(halfYVoxelSizeY);
  RODetectorYDivision->SetZHalfLength(halfYVoxelSizeZ);

  G4double halfZVoxelSizeX = halfXVoxelSizeX;
  G4double halfZVoxelSizeY = halfYVoxelSizeY;
  G4double halfZVoxelSizeZ = halfDetectorSizeZ/numberOfVoxelsAlongZ;
  G4double voxelZThickness = 2*halfZVoxelSizeZ;

  RODetectorZDivision->SetXHalfLength(halfZVoxelSizeX);
  RODetectorZDivision->SetYHalfLength(halfZVoxelSizeY);
  RODetectorZDivision->SetZHalfLength(halfZVoxelSizeZ);

  //Delete and re-build the relevant physical volumes
  G4PhysicalVolumeStore* store =
    G4PhysicalVolumeStore::GetInstance();

  //Delete...
  G4VPhysicalVolume* myVol = store->GetVolume("RODetectorPhys");
  store->DeRegister(myVol);
  //..and rebuild
  G4VPhysicalVolume *RODetectorPhys = new G4PVPlacement(0,
                            detectorToWorldPosition,
                            RODetectorLog,
                            "RODetectorPhys",
                            worldLogical,                           
                            false,0);

  myVol = store->GetVolume("RODetectorXDivisionPhys");
  store->DeRegister(myVol);
  G4VPhysicalVolume *RODetectorXDivisionPhys = new G4PVReplica("RODetectorXDivisionPhys",
                                   RODetectorXDivisionLog,
                                   RODetectorPhys,
                                   kXAxis,
                                   numberOfVoxelsAlongX,
                                   voxelXThickness);
  myVol = store->GetVolume("RODetectorYDivisionPhys");
  store->DeRegister(myVol);
  G4VPhysicalVolume *RODetectorYDivisionPhys = new G4PVReplica("RODetectorYDivisionPhys",
                                   RODetectorYDivisionLog,
                                   RODetectorXDivisionPhys,
                                   kYAxis,
                                   numberOfVoxelsAlongY,
                                   voxelYThickness);
  
  myVol = store->GetVolume("RODetectorZDivisionPhys");
  store->DeRegister(myVol);
  new G4PVReplica("RODetectorZDivisionPhys",
          RODetectorZDivisionLog,
          RODetectorYDivisionPhys,
          kZAxis,
          numberOfVoxelsAlongZ,
          voxelZThickness);

  return;

}

HadrontherapyDetectorROGeometry::~HadrontherapyDetectorROGeometry()
{;}

void HadrontherapyDetectorROGeometry::Construct()
{
  // A dummy material is used to fill the volumes of the readout geometry.
  // (It will be allowed to set a NULL pointer in volumes of such virtual
  // division in future, since this material is irrelevant for tracking.)
  

  //
  // World
  //
  G4VPhysicalVolume* ghostWorld = GetWorld();
  worldLogical = ghostWorld->GetLogicalVolume();
  
  if (!isInitialized)
    {
      G4Exception("HadrontherapyDetectorROGeometry::Construct","had001",
          FatalException,"Parameters of the RO geometry are not initialized");
      return;
    }

  
  G4double halfDetectorSizeX = detectorSizeX;
  G4double halfDetectorSizeY = detectorSizeY;
  G4double halfDetectorSizeZ = detectorSizeZ;
    
    // World volume of ROGeometry ... SERVE SOLO PER LA ROG

  // Detector ROGeometry 
  RODetector = new G4Box("RODetector", 
             halfDetectorSizeX, 
             halfDetectorSizeY, 
             halfDetectorSizeZ);
  
  RODetectorLog = new G4LogicalVolume(RODetector,
                      0,
                      "RODetectorLog",
                      0,0,0);
  
  
  
  G4VPhysicalVolume *RODetectorPhys = new G4PVPlacement(0,
                            detectorToWorldPosition,RODetectorLog,
                            "RODetectorPhys",
                            worldLogical,                           
                            false,0);



  
  // Division along X axis: the detector is divided in slices along the X axis
  
  G4double halfXVoxelSizeX = halfDetectorSizeX/numberOfVoxelsAlongX;
  G4double halfXVoxelSizeY = halfDetectorSizeY;
  G4double halfXVoxelSizeZ = halfDetectorSizeZ;
  G4double voxelXThickness = 2*halfXVoxelSizeX;
  

  RODetectorXDivision = new G4Box("RODetectorXDivision",
                  halfXVoxelSizeX,
                  halfXVoxelSizeY,
                  halfXVoxelSizeZ);
  
  RODetectorXDivisionLog = new G4LogicalVolume(RODetectorXDivision,
                           0,
                           "RODetectorXDivisionLog",
                           0,0,0);

  G4VPhysicalVolume *RODetectorXDivisionPhys = new G4PVReplica("RODetectorXDivisionPhys",
                                                              RODetectorXDivisionLog,
                                                              RODetectorPhys,
                                                              kXAxis,
                                                              numberOfVoxelsAlongX,
                                                              voxelXThickness);

  // Division along Y axis: the slices along the X axis are divided along the Y axis

  G4double halfYVoxelSizeX = halfXVoxelSizeX;
  G4double halfYVoxelSizeY = halfDetectorSizeY/numberOfVoxelsAlongY;
  G4double halfYVoxelSizeZ = halfDetectorSizeZ;
  G4double voxelYThickness = 2*halfYVoxelSizeY;

  RODetectorYDivision = new G4Box("RODetectorYDivision",
                  halfYVoxelSizeX, 
                  halfYVoxelSizeY,
                  halfYVoxelSizeZ);

  RODetectorYDivisionLog = new G4LogicalVolume(RODetectorYDivision,
                           0,
                           "RODetectorYDivisionLog",
                           0,0,0);
 
  G4VPhysicalVolume *RODetectorYDivisionPhys = new G4PVReplica("RODetectorYDivisionPhys",
                                  RODetectorYDivisionLog,
                                  RODetectorXDivisionPhys,
                                  kYAxis,
                                  numberOfVoxelsAlongY,
                                  voxelYThickness);
  
  // Division along Z axis: the slices along the Y axis are divided along the Z axis

  G4double halfZVoxelSizeX = halfXVoxelSizeX;
  G4double halfZVoxelSizeY = halfYVoxelSizeY;
  G4double halfZVoxelSizeZ = halfDetectorSizeZ/numberOfVoxelsAlongZ;
  G4double voxelZThickness = 2*halfZVoxelSizeZ;
 
  RODetectorZDivision = new G4Box("RODetectorZDivision",
                  halfZVoxelSizeX,
                  halfZVoxelSizeY, 
                  halfZVoxelSizeZ);
 
  RODetectorZDivisionLog = new G4LogicalVolume(RODetectorZDivision,
                           0,
                           "RODetectorZDivisionLog",
                           0,0,0);
 
  new G4PVReplica("RODetectorZDivisionPhys",
          RODetectorZDivisionLog,
          RODetectorYDivisionPhys,
          kZAxis,
          numberOfVoxelsAlongZ,
          voxelZThickness);

  sensitiveLogicalVolume = RODetectorZDivisionLog;
  isBuilt = true;
}

void HadrontherapyDetectorROGeometry::ConstructSD()
{
 
 G4String sensitiveDetectorName = "RODetector";
 
 HadrontherapyDetectorSD* detectorSD = new HadrontherapyDetectorSD(sensitiveDetectorName);

 SetSensitiveDetector(sensitiveLogicalVolume,detectorSD);


}