spower/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 // This example is provided by the Geant4-DNA collaboration
0027 // Any report or published results obtained using the Geant4-DNA software
0028 // shall cite the following Geant4-DNA collaboration publications:
0029 // Med. Phys. 45 (2018) e722-e739
0030 // Phys. Med. 31 (2015) 861-874
0031 // Med. Phys. 37 (2010) 4692-4708
0032 // Int. J. Model. Simul. Sci. Comput. 1 (2010) 157–178
0033 //
0034 // The Geant4-DNA web site is available at http://geant4-dna.org
0035 //
0036 /// \file DetectorConstruction.cc
0037 /// \brief Implementation of the DetectorConstruction class
0038
0039 #include "DetectorConstruction.hh"
0040
0041 #include "DetectorMessenger.hh"
0042
0043 #include "G4GeometryManager.hh"
0044 #include "G4LogicalVolumeStore.hh"
0045 #include "G4NistManager.hh"
0046 #include "G4PVPlacement.hh"
0047 #include "G4PhysicalConstants.hh"
0048 #include "G4PhysicalVolumeStore.hh"
0049 #include "G4RunManager.hh"
0050 #include "G4SolidStore.hh"
0051 #include "G4Sphere.hh"
0052 #include "G4SystemOfUnits.hh"
0053 #include "G4UnitsTable.hh"
0054
0055 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0056
0057 DetectorConstruction::DetectorConstruction()
0058   : G4VUserDetectorConstruction(), fAbsorMaterial(0), fAbsor(0), fDetectorMessenger(0)
0059 {
0060   // Default parameter values
0061   fAbsorRadius = 1 * m;
0062
0063   DefineMaterials();
0064   SetMaterial("G4_WATER");
0065
0066   // Create commands for interactive definition of the detector
0067   fDetectorMessenger = new DetectorMessenger(this);
0068 }
0069
0070 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0071
0072 DetectorConstruction::~DetectorConstruction()
0073 {
0074   delete fDetectorMessenger;
0075 }
0076
0077 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0078
0079 G4VPhysicalVolume* DetectorConstruction::Construct()
0080 {
0081   return ConstructVolumes();
0082 }
0083
0084 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0085
0086 void DetectorConstruction::DefineMaterials()
0087 {
0088   G4NistManager* man = G4NistManager::Instance();
0089
0090   man->FindOrBuildMaterial("G4_WATER");
0091 }
0092
0093 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0094
0095 G4VPhysicalVolume* DetectorConstruction::ConstructVolumes()
0096 {
0097   G4GeometryManager::GetInstance()->OpenGeometry();
0098   G4PhysicalVolumeStore::GetInstance()->Clean();
0099   G4LogicalVolumeStore::GetInstance()->Clean();
0100   G4SolidStore::GetInstance()->Clean();
0101
0102   // Spherical absorber
0103   G4Sphere* sAbsor = new G4Sphere("Absorber",  // name
0104                                   0., fAbsorRadius, 0., twopi, 0., pi);  // size
0105
0106   fLogicalAbsor = new G4LogicalVolume(sAbsor,  // solid
0107                                       fAbsorMaterial,  // material
0108                                       "Absorber");  // name
0109
0110   fAbsor = new G4PVPlacement(0,  // no rotation
0111                              G4ThreeVector(),  // at (0,0,0)
0112                              fLogicalAbsor,  // logical volume
0113                              "Absorber",  // name
0114                              0,  // mother volume
0115                              false,  // no boolean operation
0116                              0);  // copy number
0117
0118   PrintParameters();
0119
0120   return fAbsor;
0121 }
0122
0123 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0124
0125 void DetectorConstruction::PrintParameters() const
0126 {
0127   G4cout << "\n---------------------------------------------------------\n";
0128   G4cout << "---> The Absorber is a sphere of " << G4BestUnit(fAbsorRadius, "Length")
0129          << " radius of " << fAbsorMaterial->GetName() << " made of"
0130          << "\n \n"
0131          << fAbsorMaterial << G4endl;
0132   G4cout << "\n---------------------------------------------------------\n";
0133 }
0134
0135 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0136
0137 void DetectorConstruction::SetRadius(G4double value)
0138 {
0139   fAbsorRadius = value;
0140   G4RunManager::GetRunManager()->ReinitializeGeometry();
0141 }
0142
0143 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0144
0145 void DetectorConstruction::SetMaterial(G4String materialChoice)
0146 {
0147   // Search the material by its name
0148   G4NistManager::Instance()->FindOrBuildMaterial(materialChoice);
0149   G4Material* pttoMaterial = G4Material::GetMaterial(materialChoice);
0150   if (pttoMaterial) fAbsorMaterial = pttoMaterial;
0151   G4RunManager::GetRunManager()->PhysicsHasBeenModified();
0152 }