TestEm4/src/DetectorConstruction.cc

0001 //
0002 // ********************************************************************
0003 // * License and Disclaimer                                           *
0004 // *                                                                  *
0005 // * The  Geant4 software  is  copyright of the Copyright Holders  of *
0006 // * the Geant4 Collaboration.  It is provided  under  the terms  and *
0007 // * conditions of the Geant4 Software License,  included in the file *
0008 // * LICENSE and available at  http://cern.ch/geant4/license .  These *
0009 // * include a list of copyright holders.                             *
0010 // *                                                                  *
0011 // * Neither the authors of this software system, nor their employing *
0012 // * institutes,nor the agencies providing financial support for this *
0013 // * work  make  any representation or  warranty, express or implied, *
0014 // * regarding  this  software system or assume any liability for its *
0015 // * use.  Please see the license in the file  LICENSE  and URL above *
0016 // * for the full disclaimer and the limitation of liability.         *
0017 // *                                                                  *
0018 // * This  code  implementation is the result of  the  scientific and *
0019 // * technical work of the GEANT4 collaboration.                      *
0020 // * By using,  copying,  modifying or  distributing the software (or *
0021 // * any work based  on the software)  you  agree  to acknowledge its *
0022 // * use  in  resulting  scientific  publications,  and indicate your *
0023 // * acceptance of all terms of the Geant4 Software license.          *
0024 // ********************************************************************
0025 //
0026 /// \file DetectorConstruction.cc
0027 /// \brief Implementation of the DetectorConstruction class
0028
0029 #include "DetectorConstruction.hh"
0030
0031 #include "G4LogicalVolume.hh"
0032 #include "G4Material.hh"
0033 #include "G4PVPlacement.hh"
0034 #include "G4SystemOfUnits.hh"
0035 #include "G4Tubs.hh"
0036
0037 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0038
0039 G4VPhysicalVolume* DetectorConstruction::Construct()
0040 {
0041   //
0042   // define a material from its elements.   case 1: chemical molecule
0043   //
0044   G4double a, z;
0045   G4double density;
0046   G4int ncomponents, natoms;
0047
0048   G4Element* C = new G4Element("Carbon", "C", z = 6., a = 12.01 * g / mole);
0049   G4Element* F = new G4Element("Fluorine", "F", z = 9., a = 18.99 * g / mole);
0050
0051   G4Material* C6F6 = new G4Material("FluorCarbonate", density = 1.61 * g / cm3, ncomponents = 2);
0052   C6F6->AddElement(C, natoms = 6);
0053   C6F6->AddElement(F, natoms = 6);
0054
0055   G4cout << C6F6 << G4endl;
0056
0057   //
0058   // Container
0059   //
0060   G4double Rmin = 0., Rmax = 5 * cm, deltaZ = 5 * cm, Phimin = 0., deltaPhi = 360 * degree;
0061
0062   G4Tubs* solidWorld = new G4Tubs("C6F6",  // its name
0063                                   Rmin, Rmax, deltaZ, Phimin, deltaPhi);  // its size
0064
0065   G4LogicalVolume* logicWorld = new G4LogicalVolume(solidWorld,  // its solid
0066                                                     C6F6,  // its material
0067                                                     "C6F6");  // its name
0068   G4VPhysicalVolume* physiWorld = new G4PVPlacement(0,  // no rotation
0069                                                     G4ThreeVector(),  // at (0,0,0)
0070                                                     logicWorld,  // its logical volume
0071                                                     "C6F6",  // its name
0072                                                     0,  // its mother  volume
0073                                                     false,  // no boolean operation
0074                                                     0);  // copy number
0075
0076   //
0077   // always return the physical World
0078   //
0079   return physiWorld;
0080 }
0081
0082 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......