Gabriele Cosmo
235 lines
7.7 KiB
C++
235 lines
7.7 KiB
C++
//
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// ********************************************************************
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// * DISCLAIMER *
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// * *
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// * The following disclaimer summarizes all the specific disclaimers *
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// * of contributors to this software. The specific disclaimers,which *
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// * govern, are listed with their locations in: *
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// * http://cern.ch/geant4/license *
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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. *
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// * *
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// * This code implementation is the intellectual property of the *
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// * GEANT4 collaboration. *
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// * By copying, distributing or modifying the Program (or any work *
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// * based on the Program) you indicate your acceptance of this *
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// * statement, and all its terms. *
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// ********************************************************************
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//
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// $Id: DetectorConstruction.cc,v 1.1 2005/06/03 15:20:32 maire Exp $
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// GEANT4 tag $Name: geant4-08-00 $
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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 "G4NistManager.hh"
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#include "G4Box.hh"
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#include "G4LogicalVolume.hh"
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#include "G4VPhysicalVolume.hh"
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#include "G4PVPlacement.hh"
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#include "G4PVReplica.hh"
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#include "G4UniformMagField.hh"
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#include "G4GeometryManager.hh"
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#include "G4PhysicalVolumeStore.hh"
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#include "G4LogicalVolumeStore.hh"
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#include "G4SolidStore.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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// default parameter values
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absorSizeX = absorSizeYZ = 1*mm;
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nbOfLayers = 1;
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absorMaterial = 0;
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magField = 0;
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pAbsor = 0;
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DefineMaterials();
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SetMaterial("G4_Si");
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// create commands for interactive definition of the detector
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detectorMessenger = 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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{ delete detectorMessenger;}
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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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G4NistManager* man = G4NistManager::Instance();
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G4bool isotopes = false;
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man->FindOrBuildMaterial("G4_Al", isotopes);
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man->FindOrBuildMaterial("G4_Si", isotopes);
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man->FindOrBuildMaterial("G4_Fe", isotopes);
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man->FindOrBuildMaterial("G4_Ge", isotopes);
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man->FindOrBuildMaterial("G4_W" , isotopes);
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man->FindOrBuildMaterial("G4_Pb", isotopes);
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man->FindOrBuildMaterial("G4_AIR" , isotopes);
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man->FindOrBuildMaterial("G4_WATER", isotopes);
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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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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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// Absorber
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//
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G4Box*
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sAbsor = new G4Box("Absorber", //name
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absorSizeX/2,absorSizeYZ/2,absorSizeYZ/2); //size
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G4LogicalVolume*
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lAbsor = new G4LogicalVolume(sAbsor, //solid
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absorMaterial, //material
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"Absorber"); //name
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pAbsor = new G4PVPlacement(0, //no rotation
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G4ThreeVector(), //at (0,0,0)
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lAbsor, //logical volume
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"Absorber", //name
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0, //mother volume
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false, //no boolean operation
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0); //copy number
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// Layers
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//
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layerThickness = absorSizeX/nbOfLayers;
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if (nbOfLayers > 1) {
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G4Box*
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sLayer = new G4Box("Layer", //name
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layerThickness/2,absorSizeYZ/2,absorSizeYZ/2); //dimensions
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G4LogicalVolume*
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lLayer = new G4LogicalVolume(sLayer, //shape
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absorMaterial, //material
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"Layer"); //name
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new G4PVReplica("Layer", //name
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lLayer, //logical volume
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lAbsor, //mother volume
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kXAxis, //axis of replica
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nbOfLayers, //number of replica
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layerThickness); //width of replica
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}
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PrintParameters();
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//
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//always return the root volume
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//
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return pAbsor;
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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---------------------------------------------------------\n";
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G4cout << "---> The Absorber is " << G4BestUnit(absorSizeX,"Length")
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<< " of " << absorMaterial->GetName() << " divided in " << nbOfLayers
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<< " slices of " << G4BestUnit(layerThickness,"Length") << G4endl;
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G4cout << "\n---------------------------------------------------------\n";
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}
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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void DetectorConstruction::SetSizeX(G4double value)
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{
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absorSizeX = value;
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}
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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void DetectorConstruction::SetSizeYZ(G4double value)
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{
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absorSizeYZ = value;
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}
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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void DetectorConstruction::SetMaterial(G4String materialChoice)
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{
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// search the material by its name
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G4Material* pttoMaterial = G4Material::GetMaterial(materialChoice);
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if (pttoMaterial) absorMaterial = pttoMaterial;
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}
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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void DetectorConstruction::SetNbOfLayers(G4int value)
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{
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nbOfLayers = value;
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}
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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#include "G4FieldManager.hh"
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#include "G4TransportationManager.hh"
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void DetectorConstruction::SetMagField(G4double fieldValue)
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{
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//apply a global uniform magnetic field along Z axis
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G4FieldManager* fieldMgr
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= G4TransportationManager::GetTransportationManager()->GetFieldManager();
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if (magField) delete magField; //delete the existing magn field
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if (fieldValue!=0.) // create a new one if non nul
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{
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magField = new G4UniformMagField(G4ThreeVector(0.,0.,fieldValue));
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fieldMgr->SetDetectorField(magField);
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fieldMgr->CreateChordFinder(magField);
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}
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else
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{
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magField = 0;
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fieldMgr->SetDetectorField(magField);
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}
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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()->DefineWorldVolume(ConstructVolumes());
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}
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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