XrayFluoDetectorConstruction.cc

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//
// $Id: XrayFluoDetectorConstruction.cc
// GEANT4 tag $Name: xray_fluo-V03-02-00
//
// Author: Alfonso Mantero (Alfonso.Mantero@ge.infn.it)
//
// History:
// -----------
// 28 Nov 2001 Elena Guardincerri     Created
//    Nov 2002 Alfonso Mantero materials added, 
//             Material selection implementation
// 16 Jul 2003 Alfonso Mantero Detector type selection added + minor fixes
// -------------------------------------------------------------------

#include "XrayFluoDetectorConstruction.hh"
#include "XrayFluoDetectorMessenger.hh"
#include "XrayFluoSD.hh"
#include "G4PhysicalConstants.hh"
#include "G4SystemOfUnits.hh"
#include "G4Material.hh"
#include "G4ThreeVector.hh"
#include "G4Box.hh"
#include "G4Sphere.hh"
#include "G4Tubs.hh"
#include "G4LogicalVolume.hh"
#include "G4PVPlacement.hh"
#include "G4TransportationManager.hh"
#include "G4SDManager.hh"
#include "G4RunManager.hh"
#include "G4VisAttributes.hh"
#include "G4Colour.hh"
#include "G4ios.hh"
#include "G4PVReplica.hh"
#include "G4UserLimits.hh"
#include "G4GeometryManager.hh"
#include "G4PhysicalVolumeStore.hh"
#include "G4LogicalVolumeStore.hh"
#include "G4SolidStore.hh"
#include "XrayFluoNistMaterials.hh"
#include "G4SDManager.hh"

// #include "G4Region.hh"
// #include "G4RegionStore.hh"

//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....


XrayFluoDetectorConstruction::XrayFluoDetectorConstruction()
  : aNavigator(0), detectorType(0),sampleGranularity(false), phaseSpaceFlag(false),
    DeviceSizeX(0), DeviceSizeY(0),DeviceThickness(0),
    solidWorld(0),logicWorld(0),physiWorld(0),
    solidHPGe(0),logicHPGe(0),physiHPGe(0),
    solidSample (0),logicSample(0),physiSample (0),
    solidDia1(0),logicDia1(0),physiDia1(0),
    solidDia3(0),logicDia3(0),physiDia3(0),
    solidOhmicPos(0),logicOhmicPos(0), physiOhmicPos(0),
    solidWindow(0), logicWindow(0), physiWindow(0),
    solidOhmicNeg(0),logicOhmicNeg(0), physiOhmicNeg(0),
    solidPixel(0),logicPixel(0), physiPixel(0),
    OhmicPosMaterial(0), OhmicNegMaterial(0),
    pixelMaterial(0),sampleMaterial(0),
    Dia1Material(0),Dia3Material(0),
    defaultMaterial(0), windowMaterial (0)  
{ 
  materials = XrayFluoNistMaterials::GetInstance();

  HPGeSD.Put(0);

  aNavigator = new G4Navigator();
 
  DefineDefaultMaterials();

  NbOfPixelRows     =  1; // should be 1
  NbOfPixelColumns  =  1; // should be 1
  NbOfPixels        =  NbOfPixelRows*NbOfPixelColumns;
  PixelSizeXY       =  std::sqrt(40.) * mm;
  PixelThickness = 2.7 * mm; //should be 3.5 mm

  G4cout << "PixelThickness(mm): "<< PixelThickness/mm << G4endl;
  G4cout << "PixelSizeXY(cm): "<< PixelSizeXY/cm << G4endl;

  ContactSizeXY     = PixelSizeXY; //std::sqrt(40) * mm; //should be the same as PixelSizeXY
  SampleThickness = 4 * mm;
  SampleSizeXY = 3. * cm;
  Dia1Thickness = 1. *mm;
  Dia3Thickness = 1. *mm;
  Dia1SizeXY = 3. *cm;
  Dia3SizeXY = 3. *cm;


  DiaInnerSize = 2.9 * cm; //(Hole in the detector's diaphragm) it was 1 mm


  OhmicNegThickness = 1e-6*cm;// 0.005
  OhmicPosThickness = 1e-6*cm;// 0.005
  windowThickness = 0.008 * cm; //value for aif detector
  ThetaHPGe = 135. * deg;
  PhiHPGe = 225. * deg;

  ThetaDia1 = 135. * deg;
  PhiDia1 = 90. * deg;
  AlphaDia1 = 225. * deg;

  AlphaDia3 = 180. * deg;
  Dia3Dist =  66.5 * mm;
  Dia3InnerSize = 1. * mm;
  ThetaDia3 = 180. * deg;
  PhiDia3 = 90. * deg;

  DistDia = 66.5 * mm;
  DistDe =DistDia+ (Dia1Thickness
                    +PixelThickness)/2+OhmicPosThickness+windowThickness ;

  grainDia = 1 * mm;
  PixelCopyNb=0;
  grainCopyNb=0;
  G4String defaultDetectorType = "sili";
  ComputeApparateParameters();

//   G4String regName = "SampleRegion";
//   sampleRegion = new G4Region(regName);  

  if (!phaseSpaceFlag) SetDetectorType(defaultDetectorType);
  
  // create commands for interactive definition of the apparate
  
  detectorMessenger = new XrayFluoDetectorMessenger(this);

  G4cout << "XrayFluoDetectorConstruction created" << G4endl;
}
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....


XrayFluoDetectorConstruction* XrayFluoDetectorConstruction::instance = 0;

XrayFluoDetectorConstruction* XrayFluoDetectorConstruction::GetInstance()
{
  if (instance == 0)
    {
      instance = new XrayFluoDetectorConstruction;
     
    }
  return instance;
}

//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....

void XrayFluoDetectorConstruction::SetDetectorType(G4String type) 
{
  if (type=="sili")
    {
      detectorType = XrayFluoSiLiDetectorType::GetInstance();
    }
   else if (type=="hpge")
     {
       detectorType = XrayFluoHPGeDetectorType::GetInstance();
    }/*
   else if (type=="aifira")
     {
       detectorType = XrayFluoAifSiLi::GetInstance();
       }*/
  else 
    {
      G4ExceptionDescription execp;
      execp << type + "detector type unknown";
      G4Exception("XrayFluoDataSet::LoadData()","example-xray_fluorescence06",
          FatalException, execp);
    }
  //GeometryHasBeenModified invoked by the messenger
  
}

XrayFluoVDetectorType* XrayFluoDetectorConstruction::GetDetectorType() const
{
  return detectorType;
}

//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....

XrayFluoDetectorConstruction::~XrayFluoDetectorConstruction()

{ 
  delete detectorMessenger;
  delete detectorType;
  G4cout << "XrayFluoDetectorConstruction deleted" << G4endl;
}

//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....

G4VPhysicalVolume* XrayFluoDetectorConstruction::Construct()
{
  return ConstructApparate();
}

//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....

void XrayFluoDetectorConstruction::DefineDefaultMaterials()
{


  //define materials of the apparate

  sampleMaterial = materials->GetMaterial("Dolorite");
  Dia1Material = materials->GetMaterial("G4_Pb");
  Dia3Material = materials->GetMaterial("G4_Galactic");
  pixelMaterial = materials->GetMaterial("SiLi");
  //OhmicPosMaterial = materials->GetMaterial("G4_Cu");
  OhmicPosMaterial = materials->GetMaterial("G4_Ni");
  OhmicNegMaterial = materials->GetMaterial("G4_Pb");
  defaultMaterial = materials->GetMaterial("G4_Galactic");
  windowMaterial = materials->GetMaterial("G4_Be");
}

void XrayFluoDetectorConstruction::SetOhmicPosThickness(G4double val)
{
  
  if (!phaseSpaceFlag) {    
    
    
    if (val == 0.0) {
      OhmicPosMaterial = materials->GetMaterial("G4_Galactic");
    }
    else {
      OhmicPosThickness = val;
      //OhmicPosMaterial = materials->GetMaterial("G4_Cu");
      OhmicPosMaterial = materials->GetMaterial("G4_Ni");
    }
    
  }
  else{
    G4cout << "Not available in this configuration" << G4endl;
  }
  
}


//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... 

G4VPhysicalVolume* XrayFluoDetectorConstruction::ConstructApparate()
{
  // complete the apparate parameters definition 
  
  //ComputeApparateParameters();

  //world and associated navigator
  
  solidWorld = new G4Box("World",                               //its name
                         WorldSizeXY/2,WorldSizeXY/2,WorldSizeZ/2);     //its size
  
  logicWorld = new G4LogicalVolume(solidWorld,          //its solid
                                   defaultMaterial,     //its material
                                   "World");            //its name
  physiWorld = new G4PVPlacement(0,                     //no rotation
                                 G4ThreeVector(),       //at (0,0,0)
                                 "World",               //its name
                                 logicWorld,            //its logical volume
                                 0,                     //its mother  volume
                                 false,                 //no boolean operation
                                 0);                    //copy number

  aNavigator->SetWorldVolume(physiWorld);

 
  //HPGeDetector

  if (!phaseSpaceFlag) {
    
    solidHPGe = 0;  physiHPGe = 0;  logicHPGe=0;
    solidPixel=0; logicPixel=0; physiPixel=0;
    
    if (DeviceThickness > 0.)  
      {
        solidHPGe = new G4Box("HPGeDetector",           //its name
                              DeviceSizeX/2,DeviceSizeY/2,DeviceThickness/2);//size
        
        
        logicHPGe = new G4LogicalVolume(solidHPGe,      //its solid
                                        defaultMaterial,        //its material 
                                        "HPGeDetector");        //its name
        
        zRotPhiHPGe.rotateX(PhiHPGe);
        G4double x,y,z;
        z = DistDe * std::cos(ThetaHPGe);
        y =DistDe * std::sin(ThetaHPGe);
        x = 0.*cm;
        physiHPGe = new G4PVPlacement(G4Transform3D(zRotPhiHPGe,G4ThreeVector(x,y,z)), 
                                      "HPGeDetector",   //its name
                                      logicHPGe,        //its logical volume
                                      physiWorld,       //its mother  volume
                                      false,            //no boolean operation
                                      0);               //copy number
      }
    // Pixel
    
    
    
    
    for ( G4int j=0; j < NbOfPixelColumns ; j++ )
      { for ( G4int i=0; i < NbOfPixelRows ; i++ )
        { 
          solidPixel=0; logicPixel=0;   physiPixel=0;
          if (PixelThickness > 0.)
            solidPixel = new G4Box("Pixel",                     
                                   PixelSizeXY/2,PixelSizeXY/2, PixelThickness/2);
          
          logicPixel = new G4LogicalVolume(solidPixel,  
                                           pixelMaterial,       //its material
                                           "Pixel");            //its name
          
          /*
            zRotPhiHPGe.rotateX(PhiHPGe);
            G4double x,y,z;
            z = DistDe * std::cos(ThetaHPGe);
            y =DistDe * std::sin(ThetaHPGe);
            x = 0.*cm;*/ 
          physiPixel = new G4PVPlacement(0,            
                                         G4ThreeVector(0,
                                                       i*PixelSizeXY, 
                                                       j*PixelSizeXY ),
                                         "Pixel",  
                                         logicPixel,     //its logical volume
                                         physiHPGe, //its mother  volume
                                         false,  //no boolean operation
                                         PixelCopyNb);//copy number
          
          
          
          
          
          
          // OhmicNeg
          
          solidOhmicNeg=0; logicOhmicNeg=0; physiOhmicNeg=0;  
          
          if (OhmicNegThickness > 0.) 
            { solidOhmicNeg = new G4Box("OhmicNeg",             //its name
                                        PixelSizeXY/2,PixelSizeXY/2,OhmicNegThickness/2); 
            
            logicOhmicNeg = new G4LogicalVolume(solidOhmicNeg,    //its solid
                                                OhmicNegMaterial, //its material
                                                "OhmicNeg");      //its name
            
            physiOhmicNeg = new G4PVPlacement(0,
                                              G4ThreeVector
                                              (0.,
                                               0.,
                                               (PixelThickness+OhmicNegThickness)/2),
                                              "OhmicNeg",        //its name
                                              logicOhmicNeg,     //its logical volume
                                              physiHPGe,        //its mother
                                              false,             //no boulean operat
                                              PixelCopyNb);                //copy number
            
            }
          // OhmicPos
          solidOhmicPos=0; logicOhmicPos=0; physiOhmicPos=0;  
          
          if (OhmicPosThickness > 0.) 
            { solidOhmicPos = new G4Box("OhmicPos",             //its name
                                        PixelSizeXY/2,PixelSizeXY/2,OhmicPosThickness/2); 
            
            logicOhmicPos = new G4LogicalVolume(solidOhmicPos,    //its solid
                                                OhmicPosMaterial, //its material
                                                "OhmicPos");      //its name
            
            physiOhmicPos = new G4PVPlacement(0,        
                                              G4ThreeVector(0.,
                                                            0.,
                                                            (-PixelThickness-OhmicPosThickness)/2),  
                                              "OhmicPos",  
                                              logicOhmicPos,
                                              physiHPGe,  
                                              false,     
                                              PixelCopyNb); 
            
            }

          // OhmicPos
          solidWindow=0; logicWindow=0; physiWindow=0;  
          
          if (windowThickness > 0.) 
            { solidWindow = new G4Box("Window",         //its name
                                        PixelSizeXY/2,PixelSizeXY/2,windowThickness/2); 
            
            logicWindow = new G4LogicalVolume(solidWindow,    //its solid
                                                windowMaterial, //its material
                                                "Window");      //its name
            
            physiWindow = new G4PVPlacement(0,  
                                              G4ThreeVector(0.,
                                                            0.,
                                                            ((-PixelThickness-windowThickness)/2)
                                                            -OhmicPosThickness),  
                                              "OhmicWindow",  
                                              logicWindow,
                                              physiHPGe,  
                                              false,     
                                              PixelCopyNb); 
            
            }


        
          PixelCopyNb += PixelCopyNb; 
          G4cout << "PixelCopyNb: " << PixelCopyNb << G4endl;
        }
      
      }
    
  }
  
  //Sample
  
  if (sampleGranularity) {

    solidSample=0;  logicSample=0;  physiSample=0;
    if (SampleThickness > 0.)  
      {
        solidSample = new G4Box("Sample",               //its name
                                SampleSizeXY/2,SampleSizeXY/2,SampleThickness/2);//size
        
        logicSample= new G4LogicalVolume(solidSample,   //its solid
                                         defaultMaterial,       //its material
                                         "Sample");     //its name
        
        physiSample = new G4PVPlacement(0,                      //no rotation
                                        G4ThreeVector(),        //at (0,0,0)
                                        "Sample",       //its name
                                        logicSample,    //its logical volume
                                        physiWorld,     //its mother  volume
                                        false,          //no boolean operation
                                        0);             //copy number
        
      }




    G4int nbOfGrainsX = ((G4int)(SampleSizeXY/grainDia)) -1 ;
    
    // y dim of a max density plane is 2rn-(n-1)ar, wehere a = (1-(std::sqrt(3)/2)), n is 
    // number of rows and r the radius of the grain. so the Y-dim of the sample must 
    // be greater or equal to this. It results that nmust be <= (SampleY-a)/(1-a).
    // Max Y shift of the planes superimposing along Z axis is minor (2/std::sqrt(3)r)

    G4double a = (1.-(std::sqrt(3.)/2.));
    G4int nbOfGrainsY =  (G4int) ( ((SampleSizeXY/(grainDia/2.)) -a)/(2.-a) ) -1;

    // same for the z axis, but a = 2 * (std::sqrt(3) - std::sqrt(2))/std::sqrt(3)

    G4double b = 2. * (std::sqrt(3.) - std::sqrt(2.))/std::sqrt(3.);
    G4int nbOfGrainsZ =  (G4int) ( ((SampleThickness/(grainDia/2.)) -b)/(2.-b) )-1;

    if (SampleThickness > 0.){
      
      solidGrain=0; logicGrain=0; physiGrain=0;
      solidGrain = new G4Sphere("Grain",0.,                     
                                grainDia/2,0., twopi, 0., pi);
      
      logicGrain = new G4LogicalVolume(solidGrain,      
                                       sampleMaterial,  //its material
                                       "Grain");                //its name
      G4ThreeVector grainPosition; 
      G4double grainInitPositionX = 0;
      G4double grainInitPositionY = 0;
      G4double grainInitPositionZ = (-1.*SampleThickness/2.+grainDia/2.);
      G4double grainStepX = grainDia = 0;
      G4double grainStepY = grainDia*(1.-(0.5-(std::sqrt(3.)/4.)));
      G4double grainStepZ = grainDia*std::sqrt(2./3.);
      
      for ( G4int k=0; k < nbOfGrainsZ ; k++ ) {
        for ( G4int j=0; j < nbOfGrainsY ; j++ ) {
          for ( G4int i=0; i < nbOfGrainsX ; i++ ) {
            
            // Now we identify the layer and the row where the grain is , to place it in the right position
            
            
            
            if (k%3 == 0) { // first or (4-multiple)th layer: structure is ABCABC
              grainInitPositionY = (-1.*SampleSizeXY/2.+grainDia/2.);    
              if (j%2 ==0) { //first or (3-multiple)th row
                grainInitPositionX = (-1.*SampleSizeXY/2.+grainDia/2.);
              }
              
              else if ( ((j+1) % 2)  == 0 ) {
                grainInitPositionX = (-1.*SampleSizeXY/2.+ grainDia);           
              }
              
            }         
            else if ( ((k+2) % 3) == 0 ) { // B-layer
              
              grainInitPositionY = ( (-1.*SampleSizeXY/2.) + (grainDia/2.)*(1. + (1./std::sqrt(3.)) ) );
              
              if (j%2 ==0) { //first or (3-multiple)th row
                grainInitPositionX = (-1.*SampleSizeXY/2.+grainDia);
              }
              
              else if ( (j+1)%2  == 0 ) {
                grainInitPositionX = (-1.*SampleSizeXY/2.+grainDia/2);          
              }
              
            }
            
            else if ( (k+1)%3 == 0 ) { // B-layer
              
              grainInitPositionY = (-1.*SampleSizeXY/2.+(grainDia/2.)*(1.+2./std::sqrt(3.)) );
              
              if (j%2 ==0) { //first or (3-multiple)th row
                grainInitPositionX = (-1.*SampleSizeXY/2.+grainDia/2.);
              }
              
              else if ( (j+1)%2  == 0 ) {
                grainInitPositionX = (-1.*SampleSizeXY/2.+grainDia);            
              }
              
            }
            
            physiGrain = new G4PVPlacement(0,          
                                           G4ThreeVector( grainInitPositionX + i*grainStepX, 
                                                          grainInitPositionY + j*grainStepY,
                                                          grainInitPositionZ + k*grainStepZ),
                                           "Grain",  
                                           logicGrain,   //its logical volume
                                           physiSample, //its mother  volume
                                           false,        //no boolean operation
                                           grainCopyNb);//copy number    
            
            grainCopyNb = grainCopyNb +1; 
          }
        }
      }
    }    
  }
  else {     
      
    solidSample=0;  logicSample=0;  physiSample=0;
    if (SampleThickness > 0.)  
      {
        solidSample = new G4Box("Sample",               //its name
                                SampleSizeXY/2,SampleSizeXY/2,SampleThickness/2);//size
          
        logicSample= new G4LogicalVolume(solidSample,   //its solid
                                         sampleMaterial,        //its material
                                         "Sample");     //its name
          
        physiSample = new G4PVPlacement(0,                      //no rotation
                                        G4ThreeVector(),        //at (0,0,0)
                                        "Sample",       //its name
                                        logicSample,    //its logical volume
                                        physiWorld,     //its mother  volume
                                        false,          //no boolean operation
                                        0);             //copy number
          
      }  
  }

  if (!phaseSpaceFlag) {    
    //Diaphragm1
    
    solidDia1 = 0;  physiDia1 = 0;  logicDia1=0;
    
    if (Dia1Thickness > 0.)  
      {
        solidDia1 = new G4Tubs("Diaphragm1",            //its name
                               DiaInnerSize/2,
                               Dia1SizeXY/2,
                               Dia1Thickness/2,
                               0,
                               360);//size
        
        
        logicDia1 = new G4LogicalVolume(solidDia1,      //its solid
                                        Dia1Material,   //its material
                                        "Diaphragm1");  //its name
        
        zRotPhiDia1.rotateX(AlphaDia1);
        G4double x,y,z;
        z = DistDia * std::cos(ThetaDia1);
        y =DistDia * std::sin(ThetaDia1);
        x = 0.*cm;
        physiDia1 = new G4PVPlacement(G4Transform3D(zRotPhiDia1,G4ThreeVector(x,y,z)),
                                      "Diaphragm1",     //its name
                                      logicDia1,        //its logical volume
                                      physiWorld,       //its mother  volume
                                      false,            //no boolean operation
                                      0);               //copy number
      }  
    
    //Diaphragm3
    
    solidDia3 = 0;  physiDia3 = 0;  logicDia3 =0;
    
    if (Dia3Thickness > 0.)  
      {
        solidDia3 = new G4Tubs("Diaphragm3",
                               Dia3InnerSize/2,
                               Dia3SizeXY/2,
                               Dia3Thickness/2,
                               0,
                               360);
        
        
      logicDia3 = new G4LogicalVolume(solidDia3,        //its solid
                                      Dia3Material,     //its material
                                      "Diaphragm3");    //its name
      
      zRotPhiDia3.rotateX(AlphaDia3);
      G4double x,y,z;
      z = Dia3Dist * std::cos(ThetaDia3);
      y =Dia3Dist * std::sin(ThetaDia3);
      x = 0.*cm;
      physiDia3 = new G4PVPlacement(G4Transform3D(zRotPhiDia3,G4ThreeVector(x,y,z)),                                           "Diaphragm3",    //its name
                                    logicDia3,  //its logical volume
                                    physiWorld, //its mother  volume
                                    false,              //no boolean operation
                                    0);         //copy number
      }    
  }

  
  
  // Visualization attributes
  
  logicWorld->SetVisAttributes (G4VisAttributes::GetInvisible());
  G4VisAttributes* simpleBoxVisAtt= new G4VisAttributes(G4Colour(1.0,1.0,1.0));
  G4VisAttributes * yellow= new G4VisAttributes( G4Colour(255/255. ,255/255. ,51/255. ));
  G4VisAttributes * red= new G4VisAttributes( G4Colour(255/255. , 0/255. , 0/255. ));
  G4VisAttributes * blue= new G4VisAttributes( G4Colour(0/255. , 0/255. ,  255/255. ));
  G4VisAttributes * grayc= new G4VisAttributes( G4Colour(128/255. , 128/255. ,  128/255. ));
  G4VisAttributes * lightGray= new G4VisAttributes( G4Colour(178/255. , 178/255. ,  178/255. ));
  G4VisAttributes * green= new G4VisAttributes( G4Colour(0/255. , 255/255. ,  0/255. ));

  yellow->SetVisibility(true);
  yellow->SetForceSolid(true);
  red->SetVisibility(true);
  red->SetForceSolid(true);
  blue->SetVisibility(true);
  green->SetVisibility(true);
  green->SetForceSolid(true);
  grayc->SetVisibility(true);
  grayc->SetForceSolid(true);
  lightGray->SetVisibility(true);
  lightGray->SetForceSolid(true);
  simpleBoxVisAtt->SetVisibility(true);
  if (!phaseSpaceFlag) {  
    logicPixel->SetVisAttributes(red); //modified!!!
    logicHPGe->SetVisAttributes(blue);
    
    logicDia1->SetVisAttributes(lightGray);
    logicDia3->SetVisAttributes(lightGray);
    
    logicOhmicNeg->SetVisAttributes(yellow);
    logicOhmicPos->SetVisAttributes(yellow);
    
    logicWindow->SetVisAttributes(green);

  }
  logicSample->SetVisAttributes(simpleBoxVisAtt);

  if (sampleGranularity) logicSample->SetVisAttributes(simpleBoxVisAtt); // mandatory



  if (sampleGranularity)  logicGrain->SetVisAttributes(grayc);

  //always return the physical World
    
  PrintApparateParameters();

  return physiWorld;
}

//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....

void XrayFluoDetectorConstruction::ConstructSDandField()
{
  if (!phaseSpaceFlag) 
    {

      //                               
      // Sensitive Detectors 
      //
      if (HPGeSD.Get() == 0) 
        {    
          XrayFluoSD* SD = new XrayFluoSD ("HPGeSD",this);
          HPGeSD.Put( SD );
        }
      G4SDManager::GetSDMpointer()->AddNewDetector(HPGeSD.Get());
      if (logicPixel)    
        SetSensitiveDetector(logicPixel,HPGeSD.Get());
    }
  return;
}

//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....

void XrayFluoDetectorConstruction::PrintApparateParameters()
{
  G4cout << "-----------------------------------------------------------------------"
         << G4endl
         << "The sample is a box whose size is: "
         << G4endl      
         << SampleThickness/cm
         << " cm * "
         << SampleSizeXY/cm
         << " cm * "
         << SampleSizeXY/cm
         << " cm"
         << G4endl
         <<" Material: " << logicSample->GetMaterial()->GetName() 
         <<G4endl;
  if (!phaseSpaceFlag) {  
    G4cout <<"The Detector is a slice  " << DeviceThickness/(1.e-6*m) <<  " micron thick of " << pixelMaterial->GetName()
           <<G4endl
           << "The Anode is a slice " << OhmicPosThickness/mm << "mm thick of "<< OhmicPosMaterial->GetName()
           <<G4endl;
      }
  G4cout <<"-------------------------------------------------------------------------"
         << G4endl;
}
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....

void XrayFluoDetectorConstruction::UpdateGeometry()
{
  G4GeometryManager::GetInstance()->OpenGeometry();
  G4PhysicalVolumeStore::Clean();
  G4LogicalVolumeStore::Clean();
  G4SolidStore::Clean();
 
  if (sampleRegion) 
    sampleRegion->RemoveRootLogicalVolume(logicSample);
   
  zRotPhiHPGe.rotateX(-1.*PhiHPGe);
  zRotPhiDia1.rotateX(-1.*AlphaDia1);
  zRotPhiDia3.rotateX(-1.*AlphaDia3);

  //Triggers a new call of Construct() and of all the geometry resets.
  G4RunManager::GetRunManager()->ReinitializeGeometry();
}

//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....

void XrayFluoDetectorConstruction::DeleteGrainObjects()
{
  if (sampleGranularity) { 
    delete solidGrain; 
    delete logicGrain;
    delete physiGrain;
  }

}

//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....

G4ThreeVector XrayFluoDetectorConstruction::GetDetectorPosition() const
{
  G4double      z = DistDe * std::cos(ThetaHPGe);
  G4double      y = DistDe * std::sin(ThetaHPGe);
  G4double      x = 0.*cm;

  G4ThreeVector position(x,y,z);

  return position;

}

//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....

void XrayFluoDetectorConstruction::SetSampleMaterial(G4String newMaterial)
{
    G4cout << "Material Change in Progress " << newMaterial << G4endl;
    sampleMaterial = materials->GetMaterial(newMaterial);
    logicSample->SetMaterial(sampleMaterial);
    PrintApparateParameters();
    //GeometryHasBeenModified is called by the messenger
}

//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....