Gabriele Cosmo
370 lines
12 KiB
C++
370 lines
12 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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// $Id: DetectorConstruction.cc,v 1.23 2009-03-04 18:49:17 maire Exp $
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// GEANT4 tag $Name: not supported by cvs2svn $
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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 "G4Material.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 "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 "G4UImanager.hh"
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#include "G4UnitsTable.hh"
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#include <iomanip>
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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DetectorConstruction::DetectorConstruction()
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:defaultMaterial(0),physiWorld(0),magField(0)
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{
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// default parameter values of the absorbers
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NbOfAbsor = 1;
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AbsorThickness[0] = 0*mm; //dummy, for initialization
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AbsorThickness[1] = 1*mm;
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AbsorSizeYZ = 1.*mm;
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for (G4int iAbs=0; iAbs<MaxAbsor; iAbs++) {
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NbOfDivisions[iAbs] = 1;
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}
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ComputeParameters();
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// materials
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DefineMaterials();
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SetAbsorMaterial(1,"G4_Si");
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// create commands for interactive definition of the calorimeter
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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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{
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delete detectorMessenger;
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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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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_Cu", isotopes);
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man->FindOrBuildMaterial("G4_Ge", isotopes);
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man->FindOrBuildMaterial("G4_Mo", isotopes);
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man->FindOrBuildMaterial("G4_Ta", isotopes);
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man->FindOrBuildMaterial("G4_W" , isotopes);
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man->FindOrBuildMaterial("G4_Au", isotopes);
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man->FindOrBuildMaterial("G4_Pb", isotopes);
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man->FindOrBuildMaterial("G4_PbWO4", isotopes);
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man->FindOrBuildMaterial("G4_SODIUM_IODIDE", isotopes);
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man->FindOrBuildMaterial("G4_AIR" , isotopes);
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man->FindOrBuildMaterial("G4_WATER", isotopes);
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G4Element* H = man->FindOrBuildElement("H", isotopes);
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G4Element* O = man->FindOrBuildElement("O", isotopes);
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G4Material* H2O =
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new G4Material("Water", 1.000*g/cm3, 2);
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H2O->AddElement(H, 2);
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H2O->AddElement(O, 1);
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H2O->GetIonisation()->SetMeanExcitationEnergy(78.0*eV);
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G4double density = universe_mean_density; //from PhysicalConstants.h
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G4double pressure = 3.e-18*pascal;
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G4double temperature = 2.73*kelvin;
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G4Material* Galactic =
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new G4Material("Galactic", 1., 1.008*g/mole, density,
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kStateGas,temperature,pressure);
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defaultMaterial = Galactic;
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// G4cout << *(G4Material::GetMaterialTable()) << G4endl;
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}
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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void DetectorConstruction::ComputeParameters()
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{
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// Compute total thickness of absorbers
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AbsorSizeX = 0.;
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for (G4int iAbs=1; iAbs<=NbOfAbsor; iAbs++) {
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AbsorSizeX += AbsorThickness[iAbs];
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}
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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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// complete the Calor parameters definition
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ComputeParameters();
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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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//
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// World
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//
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G4Box* solidWorld =
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new G4Box("World", //name
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AbsorSizeX/2,AbsorSizeYZ/2,AbsorSizeYZ/2); //size
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G4LogicalVolume* logicWorld =
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new G4LogicalVolume(solidWorld, //solid
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defaultMaterial, //material
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"World"); //name
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physiWorld =
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new G4PVPlacement(0, //no rotation
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G4ThreeVector(), //at (0,0,0)
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logicWorld, //logical volume
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"World", //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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//
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// Absorbers
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//
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xfront[0] = -0.5*AbsorSizeX;
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//
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for (G4int k=1; k<=NbOfAbsor; k++) {
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G4Material* material = AbsorMaterial[k];
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G4String matname = material->GetName();
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G4Box* solidAbsor =
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new G4Box(matname,AbsorThickness[k]/2,AbsorSizeYZ/2,AbsorSizeYZ/2);
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G4LogicalVolume* logicAbsor =
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new G4LogicalVolume(solidAbsor, // solid
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material, // material
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matname); // name
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xfront[k] = xfront[k-1] + AbsorThickness[k-1];
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G4double xcenter = xfront[k]+0.5*AbsorThickness[k];
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G4ThreeVector position = G4ThreeVector(xcenter,0.,0.);
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new G4PVPlacement(0, //no rotation
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position, //position
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logicAbsor, //logical volume
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matname, //name
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logicWorld, //mother
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false, //no boulean operat
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k); //copy number
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// divisions, if any
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//
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G4double LayerThickness = AbsorThickness[k]/NbOfDivisions[k];
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G4Box* solidLayer =
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new G4Box(matname,LayerThickness/2,AbsorSizeYZ/2,AbsorSizeYZ/2);
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G4LogicalVolume* logicLayer =
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new G4LogicalVolume(solidLayer, //solid
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material, //material
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matname); //name
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new G4PVReplica(matname, //name
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logicLayer, //logical volume
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logicAbsor, //mother
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kXAxis, //axis of replication
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NbOfDivisions[k], //number of replica
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LayerThickness); //witdth of replica
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}
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PrintParameters();
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//always return the physical World
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//
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return physiWorld;
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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-------------------------------------------------------------"
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<< "\n ---> The Absorber is " << NbOfAbsor << " layers of:";
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for (G4int i=1; i<=NbOfAbsor; i++)
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{
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G4cout << "\n \t" << std::setw(12) << AbsorMaterial[i]->GetName() <<": "
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<< std::setw(6) << G4BestUnit(AbsorThickness[i],"Length")
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<< " divided in " << NbOfDivisions[i] << " slices";
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}
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G4cout << "\n-------------------------------------------------------------\n"
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<< G4endl;
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}
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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void DetectorConstruction::SetNbOfAbsor(G4int ival)
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{
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// set the number of Absorbers
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//
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if (ival < 1 || ival > (MaxAbsor-1))
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{ G4cout << "\n ---> warning from SetNbOfAbsor: "
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<< ival << " must be at least 1 and and most " << MaxAbsor-1
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<< ". Command refused" << G4endl;
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return;
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}
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NbOfAbsor = ival;
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}
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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void DetectorConstruction::SetAbsorMaterial(G4int iabs, const G4String& material)
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{
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// search the material by its name
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//
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if (iabs > NbOfAbsor || iabs <= 0)
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{ G4cout << "\n --->warning from SetAbsorMaterial: absor number "
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<< iabs << " out of range. Command refused" << G4endl;
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return;
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}
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G4Material* pttoMaterial =
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G4NistManager::Instance()->FindOrBuildMaterial(material);
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if (pttoMaterial) AbsorMaterial[iabs] = pttoMaterial;
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}
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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void DetectorConstruction::SetAbsorThickness(G4int iabs,G4double val)
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{
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// change Absorber thickness
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//
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if (iabs > NbOfAbsor || iabs <= 0)
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{ G4cout << "\n --->warning from SetAbsorThickness: absor number "
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<< iabs << " out of range. Command refused" << G4endl;
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return;
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}
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if (val <= DBL_MIN)
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{ G4cout << "\n --->warning from SetAbsorThickness: thickness "
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<< val << " out of range. Command refused" << G4endl;
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return;
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}
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AbsorThickness[iabs] = val;
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}
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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void DetectorConstruction::SetAbsorSizeYZ(G4double val)
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{
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// change the transverse size
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//
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if (val <= DBL_MIN)
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{ G4cout << "\n --->warning from SetAbsorSizeYZ: thickness "
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<< val << " out of range. Command refused" << G4endl;
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return;
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}
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AbsorSizeYZ = val;
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}
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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void DetectorConstruction::SetNbOfDivisions(G4int iabs, G4int ival)
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{
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// set the number of divisions
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//
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if (iabs > NbOfAbsor || iabs < 1)
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{ G4cout << "\n --->warning from SetNbOfDivisions: absor number "
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<< iabs << " out of range. Command refused" << G4endl;
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return;
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}
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if (ival < 1)
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{ G4cout << "\n --->warning from SetNbOfDivisions: "
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<< ival << " must be at least 1. Command refused" << G4endl;
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return;
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}
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NbOfDivisions[iabs] = ival;
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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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//
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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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{ 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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} else {
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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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