Gabriele Cosmo
213 lines
6.7 KiB
C++
213 lines
6.7 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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//
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// $Id: DetectorConstruction.cc,v 1.1 2002/05/23 13:30:36 maire Exp $
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// GEANT4 tag $Name: geant4-04-01 $
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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 "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 "G4UniformMagField.hh"
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#include "G4FieldManager.hh"
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#include "G4TransportationManager.hh"
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#include "G4RunManager.hh"
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#include "G4UserLimits.hh"
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#include "G4VisAttributes.hh"
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#include "G4Colour.hh"
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#include "G4UnitsTable.hh"
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#include "G4ios.hh"
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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DetectorConstruction::DetectorConstruction()
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:pBox(0), lBox(0), BoxSize(500*m),
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aMaterial(0),
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magField (0)
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{
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// create UserLimits
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userLimits = new G4UserLimits();
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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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DefineMaterials();
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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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//This function illustrates the possible ways to define materials
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G4double a, z, density;
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z = 4.;
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a = 9.012182*g/mole;
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density = 1.848*g/cm3;
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G4Material* Be = new G4Material("Beryllium", z, a, density);
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z = 26.;
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a = 55.85*g/mole;
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density = 7.870*g/cm3;
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G4Material* Fe = new G4Material("Iron" , z, a, density);
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G4cout << *(G4Material::GetMaterialTable()) << G4endl;
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//default materials of the calorimeter
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aMaterial = Fe;
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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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G4Box*
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sBox = new G4Box("Container", //its name
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BoxSize/2,BoxSize/2,BoxSize/2); //its dimensions
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lBox = new G4LogicalVolume(sBox, //its shape
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aMaterial, //its material
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"Container"); //its name
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lBox->SetUserLimits(userLimits);
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pBox = new G4PVPlacement(0, //no rotation
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G4ThreeVector(), //at (0,0,0)
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"Container", //its name
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lBox, //its logical volume
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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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//
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// Visualization attributes
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//
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G4VisAttributes* visAtt= new G4VisAttributes(G4Colour(1.0,1.0,1.0));
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visAtt->SetVisibility(true);
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lBox->SetVisAttributes(visAtt);
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//
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//always return the root volume
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//
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PrintParameters();
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return pBox;
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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(BoxSize,"Length")
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<< " of " << aMaterial->GetName() << G4endl;
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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)
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{aMaterial = pttoMaterial;
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lBox->SetMaterial(aMaterial);
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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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BoxSize = value;
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}
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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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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void DetectorConstruction::SetMaxStepSize(G4double val)
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{
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// set the maximum allowed step size
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//
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if (val <= DBL_MIN)
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{ G4cout << "\n --->warning from SetMaxStepSize: maxStep "
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<< val << " out of range. Command refused" << G4endl;
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return;
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}
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userLimits->SetMaxAllowedStep(val);
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}
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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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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