ML2Ph_BoxInBox.cc

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//
// The code was written by :
//  ^Claudio Andenna  claudio.andenna@ispesl.it, claudio.andenna@iss.infn.it
//      *Barbara Caccia barbara.caccia@iss.it
//      with the support of Pablo Cirrone (LNS, INFN Catania Italy)
//  with the contribute of Alessandro Occhigrossi*
//
// ^INAIL DIPIA - ex ISPESL and INFN Roma, gruppo collegato Sanità, Italy
// *Istituto Superiore di Sanità and INFN Roma, gruppo collegato Sanità, Italy
//  Viale Regina Elena 299, 00161 Roma (Italy)
//  tel (39) 06 49902246
//  fax (39) 06 49387075
//
// more information:
// http://g4advancedexamples.lngs.infn.it/Examples/medical-linac
//
//*******************************************************//

#include "ML2Ph_BoxInBox.hh"
#include "G4SystemOfUnits.hh"

CML2Ph_BoxInBox::CML2Ph_BoxInBox()
{// phantom size
  halfSize.set(150.*mm,150.*mm,150.*mm);
// phantom position
  centre.set(0.*mm,0.*mm,0.*mm);
}

CML2Ph_BoxInBox::~CML2Ph_BoxInBox(void)
{
}
void CML2Ph_BoxInBox::writeInfo()
{
  std::cout<<"\n\n\tcentre of the inside box: " <<centreBoxInside/mm<<" [mm]"<< G4endl;
  std::cout<<"\thalf thickness of the inside box: " <<halfBoxInside_Thickness/mm<<" [mm]\n"<< G4endl;
}
bool CML2Ph_BoxInBox::Construct(G4VPhysicalVolume *PWorld, G4int saving_in_ROG_Voxels_every_events, G4int seed, G4String ROGOutFile, G4bool bSaveROG)
{ 
  PVWorld=PWorld;


  G4double A, Z;
  A = 1.01*g/mole;
  G4Element* elH = new G4Element ("Hydrogen","H",Z = 1.,A);

  A = 12.011*g/mole;
  G4Element* elC = new G4Element("Carbon","C",Z = 6.,A);  

  A = 16.00*g/mole;
  G4Element* elO = new G4Element("Oxygen","O",Z = 8.,A);

  G4double d= 1.18*g/cm3;
  G4int natoms, ncomponents;
  G4Material* PMMA = new G4Material("Polimetilmetacrilato",d,ncomponents=3);
  PMMA->AddElement(elC, natoms=5);
  PMMA->AddElement(elH, natoms=8);
  PMMA->AddElement(elO, natoms=2);

  d= 0.1*g/cm3;
  G4Material* lightWater = new G4Material("lightWater",d,ncomponents=2);
  lightWater->AddElement(elH, natoms=2);
  lightWater->AddElement(elO, natoms=1);



// BOX INSIDE
  G4Material *boxInSideMaterial;

  boxInSideMaterial=PMMA;
  std::cout <<"boxInSideMaterial name "<<boxInSideMaterial->GetName() <<" density "<< boxInSideMaterial->GetDensity()/(g/cm3) <<" g/cm3"<< G4endl;

  centreBoxInside.set(0,0,-50); // the centre of the inside box
  halfBoxInside_Thickness=3.*cm; // the half thickness of the inside box

  G4Box *boxInSide=new G4Box("BoxInSide", halfBoxInside_Thickness, halfBoxInside_Thickness, halfBoxInside_Thickness);
  G4LogicalVolume *boxInSideLV=new G4LogicalVolume(boxInSide, boxInSideMaterial, "boxInSideLV");
  boxInSidePV = new G4PVPlacement(0, centre+centreBoxInside,"BoxInsidePV", boxInSideLV,PVWorld,false,0,0);

// layer PMMA
  G4Material *layerMaterial=G4NistManager::Instance()->FindOrBuildMaterial("G4_PLEXIGLASS"); // changable
  G4double halfPMMA_Z_Thickness=0.5*cm;
  G4Box *layer=new G4Box("layer", halfSize.getX(), halfSize.getY(), halfPMMA_Z_Thickness);
  G4LogicalVolume *layerLV = new G4LogicalVolume(layer, layerMaterial, "layerLV");
  layerPV = new G4PVPlacement(0, centre+G4ThreeVector(0,0,-halfSize.getZ()+halfPMMA_Z_Thickness),"layerPV", layerLV,PVWorld,false,0,0);

  std::cout <<"layerMaterial name "<<layerMaterial->GetName() <<" density " << layerMaterial->GetDensity()/(g/cm3) <<" g/cm3"<< G4endl;

// BOX OUTSIDE 
  G4Material *boxOutSideMaterial=G4NistManager::Instance()->FindOrBuildMaterial("G4_LUNG_ICRP"); // changable
  boxOutSideMaterial=lightWater;
  G4double halfBoxOutSide_Thickness=halfSize.getZ()-halfPMMA_Z_Thickness;
  G4Box *boxOutSide=new G4Box("BoxOutSide", halfSize.getX(), halfSize.getY(), halfBoxOutSide_Thickness);

  // boolean logic subtraction between outside box and inside box

  G4SubtractionSolid* OutMinusInBox = new G4SubtractionSolid("OutMinusInBox", boxOutSide, boxInSide, 0, centreBoxInside-G4ThreeVector(0,0,5));
  G4LogicalVolume *OutMinusInBoxLV = new G4LogicalVolume(OutMinusInBox, boxOutSideMaterial,"OutMinusInBoxLV",0,0,0);
  OutMinusInBoxPV = new G4PVPlacement(0, centre+G4ThreeVector(0,0,-halfSize.getZ()+2*halfPMMA_Z_Thickness+halfBoxOutSide_Thickness),
          "OutMinusInBoxPV",OutMinusInBoxLV,PVWorld,false,0);

  std::cout <<"boxOutSideMaterial name "<<boxOutSideMaterial->GetName() <<" density "<<boxOutSideMaterial->GetDensity()/(g/cm3) <<" g/cm3"<< G4endl;
 
  // Region for cuts
  G4Region *regVol= new G4Region("BoxInBoxR");
  G4ProductionCuts* cuts = new G4ProductionCuts;
  cuts->SetProductionCut(0.01*mm);
  regVol->SetProductionCuts(cuts);


  OutMinusInBoxLV->SetRegion(regVol);
  regVol->AddRootLogicalVolume(OutMinusInBoxLV);
  OutMinusInBoxLV->SetUserLimits(new G4UserLimits(0.01*mm));

  layerLV->SetRegion(regVol);
  regVol->AddRootLogicalVolume(layerLV);
  layerLV->SetUserLimits(new G4UserLimits(0.01*mm));

  boxInSideLV->SetRegion(regVol);
  regVol->AddRootLogicalVolume(boxInSideLV);
  boxInSideLV->SetUserLimits(new G4UserLimits(0.01*mm));

  // Visibility
  G4VisAttributes* simple_PMMA_VisAttWalls= new G4VisAttributes(G4Colour::Gray());
  G4VisAttributes* simple_InBox_VisAttWalls= new G4VisAttributes(G4Colour::Red());
  G4VisAttributes* simple_OutBox_VisAttWalls= new G4VisAttributes(G4Colour::Blue());

  simple_OutBox_VisAttWalls->SetVisibility(true);
//  simple_OutBox_VisAttWalls->SetForceWireframe(true);
//  simple_OutBox_VisAttWalls->SetForceAuxEdgeVisible(true);
  simple_OutBox_VisAttWalls->SetLineWidth(2.);
//  simple_OutBox_VisAttWalls->SetForceSolid(true);

  simple_PMMA_VisAttWalls->SetVisibility(true);
//  simple_PMMA_VisAttWalls->SetForceSolid(true);

  simple_InBox_VisAttWalls->SetVisibility(true);
//  simple_InBox_VisAttWalls->SetForceSolid(true);


  OutMinusInBoxLV->SetVisAttributes(simple_OutBox_VisAttWalls);
  boxInSideLV->SetVisAttributes(simple_InBox_VisAttWalls);
  layerLV->SetVisAttributes(simple_PMMA_VisAttWalls);

  // Sensitive detector
  sensDet=new CML2SDWithVoxels("BoxInBoxPhantom", saving_in_ROG_Voxels_every_events, seed, ROGOutFile, bSaveROG, centre, halfSize, 100, 100, 100);
  G4SDManager *SDManager=G4SDManager::GetSDMpointer();
  SDManager->AddNewDetector(sensDet);
  
  // Read Out Geometry
  CML2ReadOutGeometry *ROG = new CML2ReadOutGeometry();
  ROG->setBuildData(PVWorld->GetFrameTranslation(), halfSize, 100, 100, 100);
  ROG->BuildROGeometry();
  sensDet->SetROgeometry(ROG);
  OutMinusInBoxLV->SetSensitiveDetector(sensDet);
  layerLV->SetSensitiveDetector(sensDet);
  boxInSideLV->SetSensitiveDetector(sensDet);

  return true;
}