Gabriele Cosmo
204 lines
7.4 KiB
C++
204 lines
7.4 KiB
C++
//
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// ********************************************************************
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// * License and Disclaimer *
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// * *
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// * The Geant4 software is copyright of the Copyright Holders of *
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// * the Geant4 Collaboration. It is provided under the terms and *
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// * conditions of the Geant4 Software License, included in the file *
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// * LICENSE and available at http://cern.ch/geant4/license . These *
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// * include a list of copyright holders. *
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// * *
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// * Neither the authors of this software system, nor their employing *
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// * institutes,nor the agencies providing financial support for this *
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// * work make any representation or warranty, express or implied, *
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// * regarding this software system or assume any liability for its *
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// * use. Please see the license in the file LICENSE and URL above *
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// * for the full disclaimer and the limitation of liability. *
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// * *
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// * This code implementation is the result of the scientific and *
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// * technical work of the GEANT4 collaboration. *
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// * By using, copying, modifying or distributing the software (or *
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// * any work based on the software) you agree to acknowledge its *
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// * use in resulting scientific publications, and indicate your *
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// * acceptance of all terms of the Geant4 Software license. *
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// ********************************************************************
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//
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/// \file electromagnetic/TestEm18/src/DetectorConstruction.cc
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/// \brief Implementation of the DetectorConstruction class
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//
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//
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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#include "DetectorConstruction.hh"
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#include "DetectorMessenger.hh"
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#include "G4Box.hh"
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#include "G4GeometryManager.hh"
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#include "G4LogicalVolume.hh"
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#include "G4LogicalVolumeStore.hh"
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#include "G4Material.hh"
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#include "G4NistManager.hh"
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#include "G4PVPlacement.hh"
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#include "G4PhysicalVolumeStore.hh"
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#include "G4SolidStore.hh"
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#include "G4SystemOfUnits.hh"
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#include "G4UnitsTable.hh"
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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DetectorConstruction::DetectorConstruction()
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{
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fBoxSize = 1 * cm;
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DefineMaterials();
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SetMaterial("Water");
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fDetectorMessenger = new DetectorMessenger(this);
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}
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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DetectorConstruction::~DetectorConstruction()
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{
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delete fDetectorMessenger;
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}
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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G4VPhysicalVolume* DetectorConstruction::Construct()
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{
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return ConstructVolumes();
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}
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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void DetectorConstruction::DefineMaterials()
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{
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//
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// define Elements
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//
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G4double z, a;
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G4Element* H = new G4Element("Hydrogen", "H", z = 1., a = 1.01 * g / mole);
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G4Element* N = new G4Element("Nitrogen", "N", z = 7., a = 14.01 * g / mole);
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G4Element* O = new G4Element("Oxygen", "O", z = 8., a = 16.00 * g / mole);
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//
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// define materials
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//
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G4double density;
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G4int ncomponents, natoms;
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G4double fractionmass;
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G4Material* Air = new G4Material("Air", density = 1.290 * mg / cm3, ncomponents = 2);
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Air->AddElement(N, fractionmass = 70. * perCent);
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Air->AddElement(O, fractionmass = 30. * perCent);
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G4Material* H2O = new G4Material("Water", density = 1.000 * g / cm3, ncomponents = 2);
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H2O->AddElement(H, natoms = 2);
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H2O->AddElement(O, natoms = 1);
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H2O->GetIonisation()->SetMeanExcitationEnergy(78.0 * eV);
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G4Material* vapor = new G4Material("Water_vapor", density = 1.000 * mg / cm3, ncomponents = 2);
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vapor->AddElement(H, natoms = 2);
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vapor->AddElement(O, natoms = 1);
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vapor->GetIonisation()->SetMeanExcitationEnergy(78.0 * eV);
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new G4Material("Carbon", z = 6., a = 12.01 * g / mole, density = 2.267 * g / cm3);
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new G4Material("Aluminium", z = 13., a = 26.98 * g / mole, density = 2.700 * g / cm3);
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new G4Material("Silicon", z = 14., a = 28.09 * g / mole, density = 2.330 * g / cm3);
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new G4Material("liquidArgon", z = 18., a = 39.95 * g / mole, density = 1.390 * g / cm3);
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new G4Material("Iron", z = 26., a = 55.85 * g / mole, density = 7.870 * g / cm3);
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new G4Material("Germanium", z = 32., a = 72.61 * g / mole, density = 5.323 * g / cm3);
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new G4Material("Tungsten", z = 74., a = 183.85 * g / mole, density = 19.30 * g / cm3);
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new G4Material("Lead", z = 82., a = 207.19 * g / mole, density = 11.35 * g / cm3);
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new G4Material("ArgonGas", z = 18., a = 39.948 * g / mole, density = 1.782 * mg / cm3, kStateGas,
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273.15 * kelvin, 1 * atmosphere);
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////G4cout << *(G4Material::GetMaterialTable()) << G4endl;
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}
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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G4VPhysicalVolume* DetectorConstruction::ConstructVolumes()
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{
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// Cleanup old geometry
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G4GeometryManager::GetInstance()->OpenGeometry();
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G4PhysicalVolumeStore::GetInstance()->Clean();
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G4LogicalVolumeStore::GetInstance()->Clean();
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G4SolidStore::GetInstance()->Clean();
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G4Box* sBox = new G4Box("Container", // its name
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fBoxSize / 2, fBoxSize / 2, fBoxSize / 2); // its dimensions
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fLBox = new G4LogicalVolume(sBox, // its shape
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fMaterial, // its material
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fMaterial->GetName()); // its name
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fPBox = new G4PVPlacement(0, // no rotation
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G4ThreeVector(), // at (0,0,0)
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fLBox, // its logical volume
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fMaterial->GetName(), // its name
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0, // its mother volume
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false, // no boolean operation
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0); // copy number
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PrintParameters();
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// always return the root volume
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//
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return fPBox;
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}
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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void DetectorConstruction::PrintParameters()
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{
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G4cout << "\n The Box is " << G4BestUnit(fBoxSize, "Length") << " of " << fMaterial->GetName()
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<< "\n " << fMaterial << G4endl;
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}
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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void DetectorConstruction::SetMaterial(const G4String& name)
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{
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// search the material by its name
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G4Material* mat = G4Material::GetMaterial(name, false);
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// create the material by its name
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if (!mat) {
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mat = G4NistManager::Instance()->FindOrBuildMaterial(name);
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}
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if (mat && mat != fMaterial) {
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G4cout << "### New material " << mat->GetName() << G4endl;
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fMaterial = mat;
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UpdateGeometry();
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}
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if (!mat) {
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G4cout << "\n--> warning from DetectorConstruction::SetMaterial : " << name << " not found"
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<< G4endl;
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}
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}
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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void DetectorConstruction::SetSize(G4double value)
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{
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fBoxSize = value;
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UpdateGeometry();
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}
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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#include "G4RunManager.hh"
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void DetectorConstruction::UpdateGeometry()
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{
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G4RunManager::GetRunManager()->GeometryHasBeenModified();
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}
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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