wvalue/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 medical/dna/wvalue/src/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 #include "G4UserLimits.hh"
0055
0056 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0057
0058 DetectorConstruction::DetectorConstruction()
0059   : G4VUserDetectorConstruction(), fAbsorMaterial(0), fAbsor(0), fDetectorMessenger(0)
0060 {
0061   // Default tracking cut
0062   fTrackingCut = 7.4 * eV;
0063
0064   // Default parameter values
0065   fAbsorRadius = 1 * m;
0066
0067   DefineMaterials();
0068   SetMaterial("G4_WATER");
0069
0070   // Create commands for interactive definition of the detector
0071   fDetectorMessenger = new DetectorMessenger(this);
0072 }
0073
0074 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0075
0076 DetectorConstruction::~DetectorConstruction()
0077 {
0078   delete fDetectorMessenger;
0079 }
0080
0081 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0082
0083 G4VPhysicalVolume* DetectorConstruction::Construct()
0084 {
0085   return ConstructVolumes();
0086 }
0087
0088 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0089
0090 void DetectorConstruction::DefineMaterials()
0091 {
0092   G4NistManager* man = G4NistManager::Instance();
0093
0094   man->FindOrBuildMaterial("G4_WATER");
0095 }
0096
0097 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0098
0099 G4VPhysicalVolume* DetectorConstruction::ConstructVolumes()
0100 {
0101   G4GeometryManager::GetInstance()->OpenGeometry();
0102   G4PhysicalVolumeStore::GetInstance()->Clean();
0103   G4LogicalVolumeStore::GetInstance()->Clean();
0104   G4SolidStore::GetInstance()->Clean();
0105
0106   // Spherical absorber
0107
0108   G4Sphere* sAbsor = new G4Sphere("Absorber",  // name
0109                                   0., fAbsorRadius, 0., twopi, 0., pi);  // size
0110
0111   fLogicalAbsor = new G4LogicalVolume(sAbsor,  // solid
0112                                       fAbsorMaterial,  // material
0113                                       "Absorber");  // name
0114
0115   fAbsor = new G4PVPlacement(0,  // no rotation
0116                              G4ThreeVector(),  // at (0,0,0)
0117                              fLogicalAbsor,  // logical volume
0118                              "Absorber",  // name
0119                              0,  // mother  volume
0120                              false,  // no boolean operation
0121                              0);  // copy number
0122
0123   PrintParameters();
0124
0125   fLogicalAbsor->SetUserLimits(new G4UserLimits(DBL_MAX, DBL_MAX, DBL_MAX, fTrackingCut));
0126
0127   // Always return the root volume
0128
0129   return fAbsor;
0130 }
0131
0132 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0133
0134 void DetectorConstruction::PrintParameters() const
0135 {
0136   G4cout << "\n---------------------------------------------------------\n";
0137   G4cout << "---> The tracking cut is set to " << G4BestUnit(fTrackingCut, "Energy") << G4endl;
0138   G4cout << "---> The Absorber is a sphere of " << G4BestUnit(fAbsorRadius, "Length")
0139          << " radius of " << fAbsorMaterial->GetName() << " made of"
0140          << "\n \n"
0141          << fAbsorMaterial << G4endl;
0142   G4cout << "\n---------------------------------------------------------\n";
0143 }
0144
0145 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0146
0147 void DetectorConstruction::SetTrackingCut(G4double value)
0148 {
0149   fTrackingCut = value;
0150   G4RunManager::GetRunManager()->ReinitializeGeometry();
0151 }
0152
0153 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0154
0155 void DetectorConstruction::SetRadius(G4double value)
0156 {
0157   fAbsorRadius = value;
0158   G4RunManager::GetRunManager()->ReinitializeGeometry();
0159 }
0160
0161 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0162
0163 void DetectorConstruction::SetMaterial(G4String materialChoice)
0164 {
0165   // search the material by its name
0166   G4Material* pttoMaterial = G4Material::GetMaterial(materialChoice);
0167   if (pttoMaterial) fAbsorMaterial = pttoMaterial;
0168   G4RunManager::GetRunManager()->PhysicsHasBeenModified();
0169 }