Gabriele Cosmo
220 lines
11 KiB
C++
Executable File
220 lines
11 KiB
C++
Executable File
//
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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 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 "PrimaryGeneratorAction.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 "G4Orb.hh"
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#include "G4Sphere.hh"
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#include "G4LogicalVolume.hh"
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#include "G4ThreeVector.hh"
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#include "G4PVPlacement.hh"
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#include "globals.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 "G4RunManager.hh"
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#include "G4SystemOfUnits.hh"
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#include "G4PhysicalConstants.hh"
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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DetectorConstruction::DetectorConstruction() :
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fMaterial( nullptr ),
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fExperimentalHall_log( nullptr ), fExperimentalHall_phys( nullptr ),
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fLogicSphere( nullptr ), fPhysiSphere( nullptr ),
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fLogicScoringShell( nullptr ), fPhysiScoringShell( nullptr ),
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fDetectorMessenger( nullptr ),
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fRadius( 1.0*CLHEP::m ) //***LOOKHERE*** Default values
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{
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//G4cout << " BEGIN DetectorConstruction::DetectorConstruction()" << G4endl;
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fMaterial = G4NistManager::Instance()->FindOrBuildMaterial( "G4_Fe" ); //***LOOKHERE***
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// Default material
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fDetectorMessenger = new DetectorMessenger( this );
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//G4cout << " END DetectorConstruction::DetectorConstruction()" << G4endl;
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}
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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DetectorConstruction::~DetectorConstruction() {
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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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//G4cout << " BEGIN DetectorConstruction::Construct()" << G4endl;
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return ConstructSphere();
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}
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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G4VPhysicalVolume* DetectorConstruction::ConstructSphere() {
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//G4cout << " BEGIN DetectorConstruction::ConstructSphere()" << G4endl;
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// Clean old geometry, if any.
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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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// The target is a full solid sphere (G4Orb), positioned at the center, (0.0, 0.0, 0.0).
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// The world volume (experimental hall) is a box 10% bigger than the sphere
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// and it is filled of "G4_Galactic" material.
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G4double expHall_x = 1.1*fRadius; // half dimension along x
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G4double expHall_y = 1.1*fRadius; // half dimension along y
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G4double expHall_z = 1.1*fRadius; // half dimension along z
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G4Material* vacuum = G4NistManager::Instance()->FindOrBuildMaterial( "G4_Galactic" );
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// Experimental hall
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G4Box* experimentalHall_box = new G4Box( "expHall_box", expHall_x, expHall_y, expHall_z );
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fExperimentalHall_log = new G4LogicalVolume( experimentalHall_box, // solid
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vacuum, // material
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"expHall_log", // name
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0, // field manager
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0, // sensitive detector
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0 ); // user limits
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fExperimentalHall_phys = new G4PVPlacement( 0, // rotation
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G4ThreeVector(), // translation
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"expHall", // name
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fExperimentalHall_log, // logical volume
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0, // mother physical volume
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false, // boolean operation
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0 ); // copy number
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// Target sphere
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G4Orb* solidSphere = new G4Orb( "solidSphere", // name
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fRadius ); // outer radius
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fLogicSphere = new G4LogicalVolume( solidSphere, // solid
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fMaterial, // material
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"logicSphere", // name
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0, // field manager
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0, // sensitive detector
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0 ); // user limits
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fPhysiSphere = new G4PVPlacement( 0, // rotation
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G4ThreeVector(), // translation
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"physiSphere", // name
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fLogicSphere, // logical volume
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fExperimentalHall_phys, // mother physical volume
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false, // boolean operation
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0 ); // copy number
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// Scoring shell (a thin vacuum layer, immediately outside the target sphere)
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G4Sphere* solidScoringShell = new G4Sphere( "solidScoringShell", // name
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fRadius, // Inner radius (the radius
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// of the target sphere)
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fRadius + fScoringThickness, // Outer radius
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0.0, // Starting Phi angle of the
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// segment in radians
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2.0*CLHEP::pi, // Delta Phi angle of the
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// segment in radians
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0.0, // Starting Theta angle of
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// the segment in radians
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CLHEP::pi ); // Delta Theta angle of the
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// segment in radians
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fLogicScoringShell = new G4LogicalVolume( solidScoringShell, // solid
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vacuum, // material
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"logicScoringShell", // name
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0, // field manager
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0, // sensitive detector
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0 ); // user limits
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fPhysiScoringShell = new G4PVPlacement( 0, // rotation
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G4ThreeVector(), // translation
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"physiScoringShell", // name
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fLogicScoringShell, // logical volume
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fExperimentalHall_phys, // mother physical volume
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false, // boolean operation
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0 ); // copy number
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G4cout << G4endl
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<< "DetectorConstruction::ConstructSphere() : " << G4endl
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<< "\t World (box) size: " << G4endl
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<< "\t \t x : -/+ " << expHall_x << " mm ;"
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<< "\t y : -/+ " << expHall_y << " mm ;"
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<< "\t z : -/+ " << expHall_z << " mm ;" << G4endl
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<< G4endl << G4endl;
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//G4cout << " END DetectorConstruction::ConstructSphere()
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return fExperimentalHall_phys;
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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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fMaterial = G4NistManager::Instance()->FindOrBuildMaterial( name );
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if ( fMaterial == nullptr ) {
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G4cout << G4endl << G4endl
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<< "WARNING: the name of the material has not been recognized!" << G4endl
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<< " ===> the default * G4_Fe * will be used."
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<< G4endl << G4endl;
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fMaterial = G4NistManager::Instance()->FindOrBuildMaterial( "G4_Fe" );
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}
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if ( fLogicSphere ) fLogicSphere->SetMaterial( fMaterial );
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//G4cout << " Absorber Material = " << logicSphere->GetMaterial()->GetName() << G4endl;
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}
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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void DetectorConstruction::UpdateGeometry() {
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//G4cout << " BEGIN DetectorConstruction::UpdateGeometry" << G4endl;
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G4RunManager::GetRunManager()->ReinitializeGeometry();
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PrintParameters();
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// Update also the position of the gun
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const PrimaryGeneratorAction* pPrimaryAction = dynamic_cast< const PrimaryGeneratorAction* >
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( G4RunManager::GetRunManager()->GetUserPrimaryGeneratorAction() );
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if ( pPrimaryAction ) pPrimaryAction->SetGunPosition();
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//G4cout << " END DetectorConstruction::UpdateGeometry" << G4endl;
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}
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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void DetectorConstruction::PrintParameters() {
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G4cout << G4endl << G4endl
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<< " ------ DetectorConstruction::PrintParameters() ------ " << G4endl
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<< " Material = " << fMaterial->GetName() << G4endl
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<< " Radius = " << fRadius << " mm" << G4endl
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<< " ScoringThickness = " << fScoringThickness << " mm" << G4endl
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<< " -------------------------------------------------------- "
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<< G4endl << G4endl;
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}
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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