Gabriele Cosmo
181 lines
5.8 KiB
C++
181 lines
5.8 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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//
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/// \file DetectorConstruction
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/// \brief Implementation of the DetectorConstruction class
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#include "DetectorConstruction.hh"
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#include "ScreenSD.hh"
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#include "G4Material.hh"
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#include "G4NistManager.hh"
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#include "G4Box.hh"
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#include "G4LogicalVolume.hh"
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#include "G4PVPlacement.hh"
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#include "G4GlobalMagFieldMessenger.hh"
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#include "G4SDManager.hh"
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#include "G4VisAttributes.hh"
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#include "G4Colour.hh"
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#include "G4SystemOfUnits.hh"
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#include "G4AutoDelete.hh"
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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G4ThreadLocal
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G4GlobalMagFieldMessenger* DetectorConstruction::fMagFieldMessenger = 0;
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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DetectorConstruction::DetectorConstruction()
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: G4VUserDetectorConstruction()
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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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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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G4VPhysicalVolume* DetectorConstruction::Construct()
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{
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// Get nist material manager
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G4NistManager* nistManager = G4NistManager::Instance();
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// Build materials
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G4Material* air = nistManager->FindOrBuildMaterial("G4_AIR");
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G4Material* csi = nistManager->FindOrBuildMaterial("G4_CESIUM_IODIDE");
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// There is no need to test if materials were built/found
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// as G4NistManager would issue an error otherwise
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// Try the code with "XYZ".
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// Print all materials
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G4cout << *(G4Material::GetMaterialTable()) << G4endl;
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// Option to switch on/off checking of volumes overlaps
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G4bool checkOverlaps = true;
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//
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// World
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//
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// The world dimensions
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G4double worldHxyz = 2.*m;
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// world volume
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G4Box* worldS = new G4Box("World", worldHxyz, worldHxyz, worldHxyz);
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G4LogicalVolume* worldLV = new G4LogicalVolume(worldS, air, "World");
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G4VPhysicalVolume* worldPV
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= new G4PVPlacement(
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0, G4ThreeVector(), worldLV, "World", 0, false, 0, checkOverlaps);
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//
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// Box
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//
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// The box dimensions
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G4double boxHxy = 1.*m;
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G4double boxHz = 10.*cm;
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// box volume
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G4Box* boxS = new G4Box("World", boxHxy, boxHxy, boxHz);
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G4LogicalVolume* boxLV = new G4LogicalVolume(boxS, csi, "Box");
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// The box position
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G4double posz = 0.*m;
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new G4PVPlacement(
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0, G4ThreeVector(0, 0, posz),
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boxLV, "Box", worldLV, false, 0, checkOverlaps);
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//
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// Scoring screen
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//
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// The screen dimensions
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G4double screenHxy = 1.999*m;
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G4double screenHz = 1.*mm;
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// Screen volume
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G4Box* screenS = new G4Box("World", screenHxy, screenHxy, screenHz);
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G4LogicalVolume* screenLV = new G4LogicalVolume(screenS, air, "Screen");
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// The screen position
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posz += boxHz + screenHz;
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new G4PVPlacement(
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0, G4ThreeVector(0, 0, posz),
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screenLV, "Screen", worldLV, false, 0, checkOverlaps);
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//
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// Visualization attributes
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//
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worldLV->SetVisAttributes(G4VisAttributes::GetInvisible());
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auto simpleBoxVisAtt= new G4VisAttributes(G4Colour(1.0, 1.0, 1.0));
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simpleBoxVisAtt->SetVisibility(true);
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boxLV->SetVisAttributes(simpleBoxVisAtt);
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screenLV->SetVisAttributes(simpleBoxVisAtt);
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//
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// Always return the physical World
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//
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return worldPV;
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}
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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void DetectorConstruction::ConstructSDandField()
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{
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// G4SDManager::GetSDMpointer()->SetVerboseLevel(1);
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//
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// Sensitive detectors
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//
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auto screenSD = new ScreenSD("ScreenSD");
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G4SDManager::GetSDMpointer()->AddNewDetector(screenSD);
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SetSensitiveDetector("Screen", screenSD);
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//
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// Magnetic field
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//
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// Create global magnetic field messenger.
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// Uniform magnetic field is then created automatically if
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// the field value is not zero.
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G4ThreeVector fieldValue;
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fMagFieldMessenger = new G4GlobalMagFieldMessenger(fieldValue);
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fMagFieldMessenger->SetVerboseLevel(1);
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// Register the field messenger for deleting
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G4AutoDelete::Register(fMagFieldMessenger);
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}
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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