#include "construction.hh"

MyDetectorConstruction::MyDetectorConstruction():fRegGasDet(0), fRadRegion(0)
{
}

MyDetectorConstruction::~MyDetectorConstruction()
{}


G4VPhysicalVolume *MyDetectorConstruction::Construct()
{
	G4String name, symbol;                           
  G4double a, z;  
  G4double density, fractionmass; 
  G4int nel, ncomponents;

  // define Elements
 
  a = 1.01*g/mole;
  G4Element* elH  = new G4Element(name="Hydrogen",symbol="H" , z= 1., a);

  a = 6.94*g/mole;
  G4Element* elLi  = new G4Element(name="Lithium",symbol="Li" , z= 3., a);

  a = 9.01*g/mole;
  G4Element* elBe  = new G4Element(name="Berillium",symbol="Be" , z= 4., a);
  
  // a =19.32*g/mole;
  // G4Element* elAu  = new G4Element(name="Gold",symbol="Au" , z= 79., a);

  a = 12.01*g/mole;
  G4Element* elC = new G4Element(name="Carbon", symbol="C", z=6., a);

  a = 14.01*g/mole;
  G4Element* elN  = new G4Element(name="Nitrogen",symbol="N" , z= 7., a);

  a = 16.00*g/mole;
  G4Element* elO  = new G4Element(name="Oxygen"  ,symbol="O" , z= 8., a);

  a = 39.948*g/mole;
  G4Element* elAr = new G4Element(name="Argon", symbol="Ar", z=18., a);


 
  /*
  a = 131.29*g/mole;
  G4Element* elXe = new G4Element(name="Xenon", symbol="Xe", z=54., a);

  a = 19.00*g/mole;
  G4Element* elF  = new G4Element(name="Fluorine", symbol="F", z=9., a);
  */

  //////////////
  //
  // Detector windows, electrodes
  // Al for electrodes

  density = 2.700*g/cm3;
  a = 26.98*g/mole;
  new G4Material(name="Al", z=13., a, density);


  /////////
  //
  // Materials for popular X-ray TR radiators
  //

  // TRT_CH2

  density = 0.935*g/cm3;
  G4Material* TRT_CH2 = new G4Material(name="TRT_CH2",density, nel=2);
  TRT_CH2->AddElement(elC,1);
  TRT_CH2->AddElement(elH,2);

  // Radiator

  density = 0.059*g/cm3;
  G4Material* Radiator = new G4Material(name="Radiator",density, nel=2);
  Radiator->AddElement(elC,1);
  Radiator->AddElement(elH,2);

  // Carbon Fiber

  density = 0.145*g/cm3;
  G4Material* CarbonFiber = new G4Material(name="CarbonFiber",density, nel=1);
  CarbonFiber->AddElement(elC,1);

  // Lithium

  density = 0.534*g/cm3;
  G4Material* Li = new G4Material(name="Li",density, nel=1);
  Li->AddElement(elLi,1);

  // Beryllium

  density = 1.848*g/cm3;
  G4Material* Be = new G4Material(name="Be",density, nel=1);
  Be->AddElement(elBe,1);


  // Mylar

  density = 1.39*g/cm3;
  G4Material* Mylar = new G4Material(name="Mylar", density, nel=3);
  Mylar->AddElement(elO,2);
  Mylar->AddElement(elC,5);
  Mylar->AddElement(elH,4);

  // Kapton Dupont de Nemur (density: 1.396-1.430, get middle )

  density = 1.413*g/cm3;
  G4Material* Kapton = new G4Material(name="Kapton", density, nel=4);
  Kapton->AddElement(elO,5);
  Kapton->AddElement(elC,22);
  Kapton->AddElement(elN,2);
  Kapton->AddElement(elH,10);

  // Kapton (polyimide) ??? since = Mylar C5H4O2

  // density = 1.39*g/cm3;
  // G4Material* kapton = new G4Material(name="kapton", density, nel=3);
  // Kapton->AddElement(elO,2);
  // Kapton->AddElement(elC,5);
  // Kapton->AddElement(elH,4);

  // Polypropelene

  G4Material* CH2 = new G4Material ("CH2" , 0.91*g/cm3, 2);
  CH2->AddElement(elH,2);
  CH2->AddElement(elC,1);

  ////////////////////////////
  //
  // Noble gases , STP conditions

  // Helium as detector gas, STP

  density = 0.178*mg/cm3;
  a = 4.0026*g/mole;
  G4Material* He  = new G4Material(name="He",z=2., a, density );

  // Neon as detector gas, STP

  density = 0.900*mg/cm3;
  a = 20.179*g/mole;
  new G4Material(name="Ne",z=10., a, density );

  // Argon as detector gas, STP

  density = 1.7836*mg/cm3;       // STP
  G4Material* Argon = new G4Material(name="Argon"  , density, ncomponents=1);
  Argon->AddElement(elAr, 1);

  // Krypton as detector gas, STP

  density = 3.700*mg/cm3;
  a = 83.80*g/mole;
  G4Material* Kr  = new G4Material(name="Kr",z=36., a, density );

  // Xenon as detector gas, STP

  density = 5.858*mg/cm3;
  a = 131.29*g/mole;
  G4Material* Xe  = new G4Material(name="Xenon",z=54., a, density );

/////////////////////////////////
//
// Hydrocarbones, metane and others

  // Metane, STP

  density = 0.7174*mg/cm3;
  G4Material* metane  = new G4Material(name="CH4",density,nel=2);
  metane->AddElement(elC,1);
  metane->AddElement(elH,4);

  // Propane, STP

  density = 2.005*mg/cm3 ;
  G4Material* propane = new G4Material(name="C3H8",density,nel=2);
  propane->AddElement(elC,3);
  propane->AddElement(elH,8);

  // iso-Butane (methylpropane), STP

  density = 2.67*mg/cm3;
  G4Material* isobutane = new G4Material(name="isoC4H10",density,nel=2);
  isobutane->AddElement(elC,4);
  isobutane->AddElement(elH,10);

  /////////////////////////
  //
  // Molecular gases

  // Carbon dioxide, STP

  density = 1.977*mg/cm3;
  G4Material* CO2 = new G4Material(name="CO2", density, nel=2,
                                       kStateGas,273.15*kelvin,1.*atmosphere);
  CO2->AddElement(elC,1);
  CO2->AddElement(elO,2);

  // Carbon dioxide, STP

  density = 1.977*273.*mg/cm3/293.;
  G4Material* CarbonDioxide = new G4Material(name="CO2", density, nel=2);
  CarbonDioxide->AddElement(elC,1);
  CarbonDioxide->AddElement(elO,2);

  // Nitrogen, STP

  density = 1.25053*mg/cm3;       // STP
  G4Material* Nitrogen = new G4Material(name="N2"  , density, ncomponents=1);
  Nitrogen->AddElement(elN, 2);

  // Oxygen, STP

  density = 1.4289*mg/cm3;       // STP
  G4Material* Oxygen = new G4Material(name="O2"  , density, ncomponents=1);
  Oxygen->AddElement(elO, 2);

  /* *****************************
  density = 1.25053*mg/cm3;       // STP
  a = 14.01*g/mole ;       // get atomic weight !!!
  //  a = 28.016*g/mole;
  G4Material* N2  = new G4Material(name="Nitrogen", z= 7.,a,density) ;

  density = 1.25053*mg/cm3;       // STP
  G4Material* anotherN2 = new G4Material(name="anotherN2", density,ncomponents=2);
  anotherN2->AddElement(elN, 1);
  anotherN2->AddElement(elN, 1);

  // air made from oxigen and nitrogen only

  density = 1.290*mg/cm3;  // old air from elements
  G4Materi* air = new G4Material(name="air"  , density, ncomponents=2);
  air->AddElement(elN, fractionmass=0.7);
  air->AddElement(elO, fractionmass=0.3);
  ******************************************** */

  // Dry Air (average composition with Ar), STP

  density = 1.2928*mg/cm3 ;       // STP
  G4Material* Air = new G4Material(name="Air"  , density, ncomponents=3);
  Air->AddMaterial( Nitrogen, fractionmass = 0.7557 );
  Air->AddMaterial( Oxygen,   fractionmass = 0.2315 );
  Air->AddMaterial( Argon,    fractionmass = 0.0128 );

  ////////////////////////////////////////////////////////////////////////////
  //
  // MWPC mixtures

  // 90% Ar + 10% CO2, STP

  density = 1.802*mg/cm3;
  G4Material* Ar10CO2 = new G4Material(name="Ar10CO2"  , density, ncomponents=2);
  Ar10CO2->AddMaterial( Argon,              fractionmass = 0.891 ); // 1.78*0.9 / density
  Ar10CO2->AddMaterial( CarbonDioxide,   fractionmass = 0.109 ); // 1 - frmAr


  // 85% Xe + 15% CO2, STP

  density = 4.9*mg/cm3;
  G4Material* Xe15CO2 = new G4Material(name="Xe15CO2"  , density, ncomponents=2);
  Xe15CO2->AddMaterial( Xe,              fractionmass = 0.979);
  Xe15CO2->AddMaterial( CarbonDioxide,   fractionmass = 0.021);

  // 80% Xe + 20% CO2, STP

  density = 5.0818*mg/cm3;
  G4Material* Xe20CO2 = new G4Material(name="Xe20CO2"  , density, ncomponents=2);
  Xe20CO2->AddMaterial( Xe,              fractionmass = 80*perCent );
  Xe20CO2->AddMaterial( CarbonDioxide,   fractionmass = 20*perCent );

  // 70% Xe + 27% CO2 + 3% O2, 20 1 atm ATLAS straw tube mixture

  density = 4.358*mg/cm3;
  G4Material* Xe27CO23O2 = new G4Material(name="Xe27CO23O2"  , density, ncomponents=3);
  Xe27CO23O2->AddMaterial( Xe,            fractionmass = 0.87671);
  Xe27CO23O2->AddMaterial( CarbonDioxide, fractionmass = 0.11412);
  Xe27CO23O2->AddMaterial( Oxygen,        fractionmass = 0.00917);

  // 80% Kr + 20% CO2, STP

  density = 3.601*mg/cm3;
  G4Material* Kr20CO2 = new G4Material(name="Kr20CO2", density,
                                       ncomponents=2);
  Kr20CO2->AddMaterial( Kr,              fractionmass = 0.89 );
  Kr20CO2->AddMaterial( CarbonDioxide,   fractionmass = 0.11 );

  // Xe + 55% He + 15% CH4 ; NIM A294 (1990) 465-472; STP

  density = 1.963*273.*mg/cm3/293.;
  G4Material* Xe55He15CH4 = new G4Material(name="Xe55He15CH4",density,
                                           ncomponents=3);
  Xe55He15CH4->AddMaterial(Xe, 0.895);
  Xe55He15CH4->AddMaterial(He, 0.050);
  Xe55He15CH4->AddMaterial(metane,0.055);

  // 90% Xe + 10% CH4, STP ; NIM A248 (1986) 379-388

  density = 5.344*mg/cm3;
  G4Material* Xe10CH4 = new G4Material(name="Xe10CH4"  , density,
                                       ncomponents=2);
  Xe10CH4->AddMaterial( Xe,       fractionmass = 0.987 ) ;
  Xe10CH4->AddMaterial( metane,   fractionmass = 0.013 ) ;

  // 95% Xe + 5% CH4, STP ; NIM A214 (1983) 261-268

  density = 5.601*mg/cm3;
  G4Material* Xe5CH4 = new G4Material(name="Xe5CH4"  , density,
                                      ncomponents=2);
  Xe5CH4->AddMaterial( Xe,       fractionmass = 0.994 );
  Xe5CH4->AddMaterial( metane,   fractionmass = 0.006 );

  // 80% Xe + 20% CH4, STP ; NIM A253 (1987) 235-244

  density = 4.83*mg/cm3;
  G4Material* Xe20CH4 = new G4Material(name="Xe20CH4"  , density,
                                       ncomponents=2);
  Xe20CH4->AddMaterial( Xe,       fractionmass = 0.97 );
  Xe20CH4->AddMaterial( metane,   fractionmass = 0.03 );

  // 93% Ar + 7% CH4, STP ; NIM 107 (1973) 413-422

  density = 1.709*mg/cm3;
  G4Material* Ar7CH4 = new G4Material(name="Ar7CH4"  , density,
                                                  ncomponents=2);
  Ar7CH4->AddMaterial( Argon,       fractionmass = 0.971 );
  Ar7CH4->AddMaterial( metane,   fractionmass = 0.029 );

  // 93% Kr + 7% CH4, STP ; NIM 107 (1973) 413-422

  density = 3.491*mg/cm3;
  G4Material* Kr7CH4 = new G4Material(name="Kr7CH4"  , density,
                                                  ncomponents=2);
  Kr7CH4->AddMaterial( Kr,       fractionmass = 0.986 );
  Kr7CH4->AddMaterial( metane,   fractionmass = 0.014 );

  // 0.5*(95% Xe + 5% CH4)+0.5*(93% Ar + 7% CH4), STP ; NIM A214 (1983) 261-268

  density = 3.655*mg/cm3;
  G4Material* XeArCH4 = new G4Material(name="XeArCH4"  , density,
                                                  ncomponents=2);
  XeArCH4->AddMaterial( Xe5CH4,       fractionmass = 0.766 );
  XeArCH4->AddMaterial( Ar7CH4,   fractionmass = 0.234 );

  // Silicon as detector material

  density = 2.330*g/cm3;
  a = 28.09*g/mole;
  new G4Material(name="Si", z=14., a, density);

  density =  19.32*g/cm3;
  a = 196.97*g/mole;
  new G4Material(name="Au", z= 79., a, density);


 
  density = 2.700*g/cm3;
  a = 26.98*g/mole;
  new G4Material(name="Al", z=13., a, density);

  density =7.87*g/cm3;
  a = 55.85*g/mole;
  new G4Material(name="Iron", z=26., a,density);
 

  density =700.87*g/cm3;
  a = 55.85*g/mole;
  new G4Material(name="IronAll", z=26., a,density);

G4int natoms;
  // a = 16.00*g/mole;
  // G4Element* elO  = new G4Element(name="Oxygen"  ,symbol="O" , z= 8., a);

  a = 183.84*g/mole;
  G4Element* elW = new G4Element(name="Tungsten" ,symbol="W",  z=74., a);

  a = 207.20*g/mole;
  G4Element* elPb = new G4Element(name="Lead"    ,symbol="Pb", z=82., a);

  density = 8.280*g/cm3;
  G4Material* PbWO4= new G4Material(name="PbWO4", density, ncomponents=3);
  PbWO4->AddElement(elO , natoms=4);
  PbWO4->AddElement(elW , natoms=1);
  PbWO4->AddElement(elPb, natoms=1);


  // a = 16.00*g/mole;    G4Element* elO  = new G4Element(name="Oxygen"  ,symbol="O" , z= 8., a);
  a = 137.33*g/mole;   G4Element* elBa = new G4Element(name="Barium" ,symbol="Ba",  z=56., a);
  a = 28.09*g/mole;   G4Element* elSi = new G4Element(name="Silicone"    ,symbol="Si", z=14., a);

  density = 3.8*g/cm3;   G4Material* DSBCe= new G4Material(name="DSBCe", density, ncomponents=3);
  DSBCe->AddElement(elO , natoms=5);
  DSBCe->AddElement(elBa , natoms=1);
  DSBCe->AddElement(elSi, natoms=2);




G4NistManager* man = G4NistManager::Instance();
  G4Element* C  = man->FindOrBuildElement("C");
  G4Element* Si = man->FindOrBuildElement("Si");
  G4Element* Cr = man->FindOrBuildElement("Cr");
  G4Element* Mn = man->FindOrBuildElement("Mn");
  G4Element* Fe = man->FindOrBuildElement("Fe");
  G4Element* Ni = man->FindOrBuildElement("Ni");

  G4Material* StainlessSteel = new G4Material("StainlessSteel", density= 8.06*g/cm3, ncomponents=6);
	StainlessSteel->AddElement(C, fractionmass=0.001);
	StainlessSteel->AddElement(Si, fractionmass=0.007);
	StainlessSteel->AddElement(Cr, fractionmass=0.18);
	StainlessSteel->AddElement(Mn, fractionmass=0.01);
	StainlessSteel->AddElement(Fe, fractionmass=0.712);
	StainlessSteel->AddElement(Ni, fractionmass=0.09);


	//    density = 1e-25*cm3/g;
	//AddMaterial("G4_Galactic", density, 1, 21.8);
 G4Material* empty  = man->FindOrBuildMaterial("G4_Galactic"); 
 


  
  
  //###################### Material for Radiator######################################
  
   // Preparation of mixed radiator material



  
  G4cout <<"G4Material* CH2   = "<<CH2<<G4endl;   
  G4cout <<"G4Material* Mylar = "<<Mylar<<G4endl;
  
  G4double foilDensity =  0.91*g/cm3;  // CH2 1.39*g/cm3; // Mylar //  0.534*g/cm3; //Li     
  G4double gasDensity  =  1.2928*mg/cm3; // Air // 1.977*mg/cm3; // CO2 0.178*mg/cm3; // He  
  
  fRadThickness = 0.020*mm;                //0.020*mm;    // 16 um // ZEUS NIMA 323 (1992) 135-139, D=20um, dens.= 0.1 g/cm3
  fGasGap       = 0.600*mm;    // for ZEUS  300-publication
  fDetGap       =   0.01*mm ;
  
  foilGasRatio  = fRadThickness/(fRadThickness+fGasGap); //######################### HOW?????
  G4cout<<"foil gas ratio is :- "<<foilGasRatio<<G4endl;
  
  fRadThick = .3*cm - fGasGap + fDetGap;
  fFoilNumber=fRadThick/(fRadThickness + fGasGap);
  G4cout<<"The foil number is "<<fFoilNumber;
  
  G4double totDensity  = foilDensity*foilGasRatio + gasDensity*(1.0-foilGasRatio) ;
  
  G4cout<<"tot density is :- "<<totDensity<<G4endl;
  G4cout<<"Rad totDensity = "<<totDensity/(g/cm3)<<" g/cm3 "<<G4endl ;
  G4cout<<"use for Rad totDensity = "<<totDensity/(g/cm3)<<" g/cm3 "<<G4endl ;


  G4double fractionFoil =  foilDensity*foilGasRatio/totDensity ; 
  G4double fractionGas  =  gasDensity*(1.0-foilGasRatio)/totDensity ; 
  G4cout<<"Fraction gas "<<fractionGas<<G4endl;
  G4cout<<"Fraction foil "<<fractionFoil<<G4endl;
  
   
  G4Material* radiatorMat0 = new G4Material("radiatorMat0"  , totDensity, 2);
  radiatorMat0->AddMaterial( CH2, fractionFoil ) ;
  radiatorMat0->AddMaterial( Air, fractionGas  ) ;
  G4double NewDensity = 0.083*(g/cm3);
  G4Material* radiatorMat = new G4Material("radiatorMat",NewDensity,1);
  radiatorMat->AddMaterial(radiatorMat0, 1.) ;
  G4cout<<"new  Rad with totDensity = "<<NewDensity/(g/cm3)<<" g/cm3 "<<G4endl ;

  G4double XTR_density = radiatorMat->GetDensity();
  G4cout<<"Read back Rad totDensity = "<<XTR_density/(g/cm3)<<" g/cm3 "<<G4endl ;
 // default materials of the detector and TR radiator
  fRadiatorMat = radiatorMat; 
  fFoilMat     = CH2; // Kapton; // Mylar ; // Li ; // CH2 ;  
  fGasMat      = Air; // CO2; // He; //   
  



    
  //############################################################# Creating Volumne #########################
  // World
 
  G4NistManager *nist = G4NistManager::Instance();	
  G4bool checkOverlaps = true;

  G4Material* world_mat = nist->FindOrBuildMaterial("G4_AIR");
  G4Material* absorberSi = nist->FindOrBuildMaterial("G4_Si");
  
  G4Box* solidWorld =    
    new G4Box("World",                       //its name
       100*cm, 100*cm, 100*cm);     //its size
      
  G4LogicalVolume* logicWorld =                         
    new G4LogicalVolume(solidWorld,          //its solid
                        world_mat,           //its material
                        "World");            //its name
                                   
  G4VPhysicalVolume* physWorld = 
    new G4PVPlacement(0,                     //no rotation
                      G4ThreeVector(0.,0.,0.),       //at (0,0,0)
                      logicWorld,            //its logical volume
                      "World",               //its name
                      0,                     //its mother  volume
                      false,                 //no boolean operation
                      0,                     //copy number
                      checkOverlaps);        //overlaps checking
 
  //Radiator
  G4Box* solidEnv =    
    new G4Box("Envelope",                    //its name
        7.5*cm,7.5*cm,7.5*cm); //its size
      
  G4LogicalVolume* fLogicRadiator =                         
    new G4LogicalVolume(solidEnv,            //its solid
                        fRadiatorMat,             //its material
                        "Envelope");         //its name
               
  new G4PVPlacement(0,                       //no rotation
                    G4ThreeVector(0.,0.,7.5*cm),         //at (0,0,0)
                    fLogicRadiator,                //its logical volume
                    "Envelope",              //its name
                    logicWorld,              //its mother  volume
                    false,                   //no boolean operation
                    1,                       //copy number
                    checkOverlaps);          //overlaps checking
 
 
  fRadRegion = new G4Region("XTRradiator");
  fRadRegion->AddRootLogicalVolume(fLogicRadiator);  
  
 //Absorber(GEM)
  G4Box* solidGem =    
    new G4Box("gem",                    //its name
        10*cm,10*cm,1.5*cm); //its size (earlier 4cm)
      
  logicGem =                         
    new G4LogicalVolume(solidGem,            //its solid
                        Xe20CO2,             //its material
                        "gem");         //its name
               
  fAbsorberPV=new G4PVPlacement(0,                       //no rotation
                    G4ThreeVector(0.,0.,16.5*cm),         //at (0,0,0)
                    logicGem,                //its logical volume
                    "gem",              //its name
                    logicWorld,              //its mother  volume
                    false,                   //no boolean operation
                    2,                       //copy number
                    checkOverlaps);          //overlaps checking
                    
                    
  fRegGasDet = new G4Region("XTRdEdxDetector");  
  fRegGasDet->AddRootLogicalVolume(logicGem);
 
  //G4double maxStep = 0.1*mm;
  //G4double maxTime = 100.*s;

  //G4UserLimits* stepLimit = new G4UserLimits(maxStep,DBL_MAX,maxTime);

  //logicGem->SetUserLimits(stepLimit);
  
  fScoringVolume=logicGem;
  return physWorld;  
  
}

void MyDetectorConstruction::ConstructSDandField()
{
    G4SDManager *sdman=G4SDManager::GetSDMpointer();
    MySensitiveDetector* sensDet = new MySensitiveDetector("SensitiveDetector");
    sdman->AddNewDetector(sensDet);
    logicGem->SetSensitiveDetector(sensDet);
}