ExGflashDetectorConstruction.cc

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// $Id: ExGflashDetectorConstruction.cc 73006 2013-08-15 08:17:11Z gcosmo $
//
//
// Created by Joanna Weng 26.11.2004

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#include <iostream>
// G4 Classes
#include "globals.hh"
#include "G4ThreeVector.hh"
#include "G4PVPlacement.hh"
#include "G4VPhysicalVolume.hh"
#include "G4LogicalVolume.hh"
#include "G4VisAttributes.hh"
#include "G4Box.hh"
#include "G4NistManager.hh"
#include "G4SDManager.hh"
#include "G4Material.hh"
#include "G4GeometryManager.hh"
#include "G4PhysicalVolumeStore.hh"
#include "G4LogicalVolumeStore.hh"
#include "G4SolidStore.hh"
#include "G4Colour.hh"
#include "G4SystemOfUnits.hh"

// User Classes
#include "ExGflashDetectorConstruction.hh"
#include "ExGflashSensitiveDetector.hh"

//fast simulation
#include "GFlashHomoShowerParameterisation.hh"
#include "G4FastSimulationManager.hh"
#include "GFlashShowerModel.hh"
#include "GFlashHitMaker.hh"
#include "GFlashParticleBounds.hh"

using namespace std;

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ExGflashDetectorConstruction::ExGflashDetectorConstruction()
  :fExperimentalHall_log(0), 
   fCalo_log(0), 
   fExperimentalHall_phys(0), 
   fCalo_phys(0),
   fTheParameterisation(0),
   fTheHMaker(0),
   fTheParticleBounds(0),
   fTheFastShowerModel(0)
{
  G4cout<<"ExGflashDetectorConstruction::Detector constructor"<<G4endl;
  
  // Simplified `CMS-like` PbWO4 crystal calorimeter  
  fCalo_xside=31*cm;
  fCalo_yside=31*cm;
  fCalo_zside=24*cm; 
  
  // GlashStuff
  //Energy Cuts to kill particles
//  fTheParticleBounds  = new GFlashParticleBounds();
  // Makes the EnergieSpots
//  fTheHMaker          = new GFlashHitMaker();
}

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ExGflashDetectorConstruction::~ExGflashDetectorConstruction()
{ 
  //@@@ ExGflashDetectorConstruction::Soll ich alles dlete
  
  // -- !! this is not properly deleted in MT where
  // -- !! as there is one parameterisation/thread
  // -- !! and only the last one is remembered.
  if ( fTheParameterisation ) delete fTheParameterisation;
  if ( fTheParticleBounds )   delete fTheParticleBounds;
  if ( fTheHMaker )           delete fTheHMaker;
  if ( fTheFastShowerModel )  delete fTheFastShowerModel;
}

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G4VPhysicalVolume* ExGflashDetectorConstruction::Construct()
{
  //--------- Definitions of Solids, Logical Volumes, Physical Volumes ---------
  G4cout << "Defining the materials" << G4endl;
  // Get nist material manager
  G4NistManager* nistManager = G4NistManager::Instance();
  // Build materials
  G4Material* air   = nistManager->FindOrBuildMaterial("G4_AIR");
  G4Material* pbWO4 = nistManager->FindOrBuildMaterial("G4_PbWO4");
  
  
  /*******************************
   * The Experimental Hall       *
   *******************************/
  fExperimentalHall_x=1000.*cm;
  fExperimentalHall_y=1000.*cm;
  fExperimentalHall_z=1000.*cm;
  
  fExperimentalHall_box = new G4Box("expHall_box",              // World Volume
                                    fExperimentalHall_x,        // x size
                                    fExperimentalHall_y,        // y size
                                    fExperimentalHall_z);       // z size
  
  fExperimentalHall_log = new G4LogicalVolume(fExperimentalHall_box,
                                              air,
                                              "expHall_log",
                                              0,       //opt: fieldManager
                                              0,       //opt: SensitiveDetector
                                              0);      //opt: UserLimits
  fExperimentalHall_phys = new G4PVPlacement(0,
                                             G4ThreeVector(),   //at (0,0,0)
                                             "expHall",
                                             fExperimentalHall_log,
                                             0,
                                             false,
                                             0);
  
  
  //------------------------------ 
  // Calorimeter segments
  //------------------------------
  // Simplified `CMS-like` PbWO4 crystal calorimeter  
  
  fNbOfCrystals = 10;  // this are the crystals PER ROW in this example 
                       // cube of 10 x 10 crystals 
                       // don't change it @the moment, since 
                       // the readout in event action assumes this 
                       // dimensions and is not automatically adapted
                       // in this version of the example :-( 
  fCrystalWidth = 3*cm;
  fCrystalLenght= 24*cm;
  fCalo_xside=(fCrystalWidth*fNbOfCrystals)+1*cm;
  fCalo_yside=(fCrystalWidth*fNbOfCrystals)+1*cm;
  fCalo_zside=fCrystalLenght;
  
  G4Box *calo_box= new G4Box("CMS calorimeter",  // its name
                             fCalo_xside/2.,     // size
                             fCalo_yside/2.,
                             fCalo_zside/2.);
  fCalo_log = new G4LogicalVolume(calo_box,      // its solid
                                  air,           // its material
                                  "calo log",    // its name
                                  0,             // opt: fieldManager
                                  0,             // opt: SensitiveDetector 
                                  0);            // opt: UserLimit
  
  G4double Xpos = 0.0;
  G4double Ypos = 0.0;
  G4double Zpos = 100.0*cm;
  
  fCalo_phys = new G4PVPlacement(0,
                                 G4ThreeVector(Xpos,Ypos,Zpos),
                                 fCalo_log,
                                 "calorimeter",
                                 fExperimentalHall_log,
                                 false,
                                 1);
  //Visibility
  for (int i=0; i<fNbOfCrystals;i++)
    {
      
      for (int j=0; j<fNbOfCrystals;j++)
        {  
          int n =  i*10+j;
          fCrystal[n]= new G4Box("Crystal",                     // its name
                                 fCrystalWidth/2,
                                 fCrystalWidth/2,
                                 fCrystalLenght/2);             // size
          fCrystal_log[n] = new G4LogicalVolume(fCrystal[n],    // its solid
                                                pbWO4,          // its material
                                                "Crystal_log"); // its name
          G4ThreeVector crystalPos((i*fCrystalWidth)-135,
                                   (j*fCrystalWidth)-135,0 );
          fCrystal_phys[n] = new G4PVPlacement(0,               // no rotation
                                               crystalPos,      // translation
                                               fCrystal_log[n],
                                               "crystal",       // its name
                                               fCalo_log,
                                               false,
                                               1);
        }
    }  
  G4cout << "There are " << fNbOfCrystals <<
    " crystals per row in the calorimeter, so in total "<<
    fNbOfCrystals*fNbOfCrystals << " crystals" << G4endl;  
  G4cout << "The have widthof  " << fCrystalWidth /cm <<
    "  cm and a lenght of  " <<  fCrystalLenght /cm
         <<" cm. The Material is "<< pbWO4 << G4endl;
  
  
  fExperimentalHall_log->SetVisAttributes(G4VisAttributes::Invisible);
  G4VisAttributes* CaloVisAtt = new G4VisAttributes(G4Colour(1.0,1.0,1.0));
  G4VisAttributes* CrystalVisAtt = new G4VisAttributes(G4Colour(1.0,1.0,0.0));
  fCalo_log->SetVisAttributes(CaloVisAtt);
  for (int i=0; i<100;i++)
    {
      fCrystal_log[i]->SetVisAttributes(CrystalVisAtt);
    }
  // define the parameterisation region
  fRegion = new G4Region("crystals");
  fCalo_log->SetRegion(fRegion);
  fRegion->AddRootLogicalVolume(fCalo_log);
  
  return fExperimentalHall_phys;
}

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void ExGflashDetectorConstruction::ConstructSDandField()
{
  // -- sensitive detectors:
  G4SDManager* SDman = G4SDManager::GetSDMpointer();
  ExGflashSensitiveDetector* CaloSD=
    new ExGflashSensitiveDetector("Calorimeter",this);
  SDman->AddNewDetector(CaloSD);
  
  for (int i=0; i<100;i++)
    {
      fCrystal_log[i]->SetSensitiveDetector(CaloSD);
    }
  
  // Get nist material manager
  G4NistManager* nistManager = G4NistManager::Instance();
  G4Material*          pbWO4 = nistManager->FindOrBuildMaterial("G4_PbWO4");
  // -- fast simulation models:
  // **********************************************
  // * Initializing shower modell
  // ***********************************************
  G4cout << "Creating shower parameterization models" << G4endl;
  GFlashShowerModel* lTheFastShowerModel =
                            new GFlashShowerModel("fastShowerModel",fRegion);
  GFlashHomoShowerParameterisation* lTheParameterisation =
    new GFlashHomoShowerParameterisation(pbWO4);
  lTheFastShowerModel->SetParameterisation(*lTheParameterisation);
  // Energy Cuts to kill particles:
  GFlashParticleBounds* lTheParticleBounds  = new GFlashParticleBounds();
  lTheFastShowerModel->SetParticleBounds(*lTheParticleBounds);
  // Makes the EnergieSpots
  GFlashHitMaker* lTheHMaker          = new GFlashHitMaker();
  lTheFastShowerModel->SetHitMaker(*lTheHMaker);
  G4cout<<"end shower parameterization."<<G4endl;
  // **********************************************
}

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