Gabriele Cosmo
121 lines
4.6 KiB
C++
121 lines
4.6 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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/// \file DetectorConstruction.cc
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/// \brief Implementation of the DetectorConstruction class
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///
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/// Define geometry
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#include "DetectorConstruction.hh"
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#include "VoxelParam.hh"
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#include "VoxelSD.hh"
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#include "G4Box.hh"
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#include "G4LogicalVolume.hh"
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#include "G4NistManager.hh"
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#include "G4PVParameterised.hh"
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#include "G4PVPlacement.hh"
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#include "G4SystemOfUnits.hh"
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#include "G4VisAttributes.hh"
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typedef G4LogicalVolume G4LV;
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typedef G4PVPlacement G4PVP;
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typedef G4VisAttributes G4VA;
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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DetectorConstruction::DetectorConstruction() : flv_voxel(NULL) {}
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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DetectorConstruction::~DetectorConstruction() {}
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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G4VPhysicalVolume* DetectorConstruction::Construct()
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{
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G4NistManager* nistManager = G4NistManager::Instance();
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G4VisAttributes* va;
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// world volume
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const G4double DXYZ_WORLD = 200. * cm;
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G4Box* sld_world = new G4Box("world", DXYZ_WORLD / 2., DXYZ_WORLD / 2., DXYZ_WORLD / 2.);
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G4Material* vacuum = nistManager->FindOrBuildMaterial("G4_Galactic");
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G4LV* lv_world = new G4LogicalVolume(sld_world, vacuum, "world");
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G4PVP* world = new G4PVPlacement(0, G4ThreeVector(), "AREA", lv_world, 0, false, 0);
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// vis. attributes
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va = new G4VA(G4Color(1., 1., 1.));
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va->SetVisibility(false);
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lv_world->SetVisAttributes(va);
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// water phantom
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const G4double DXY_PHANTOM = 20. * cm;
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const G4double DZ_PHANTOM = 50. * cm;
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G4Box* sld_phantom = new G4Box("phantom", DXY_PHANTOM / 2., DXY_PHANTOM / 2., DZ_PHANTOM / 2.);
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G4Material* water = nistManager->FindOrBuildMaterial("G4_WATER");
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G4LV* lv_phantom = new G4LogicalVolume(sld_phantom, water, "phantom");
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va = new G4VA(G4Color(0., 1., 1.));
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lv_phantom->SetVisAttributes(va);
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new G4PVP(0, G4ThreeVector(), lv_phantom, "phantom", lv_world, false, 0);
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// voxel planes
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const G4double DXY_VXP = 20. * cm;
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const G4double DZ_VXP = 1. * mm;
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G4Box* sld_vxp = new G4Box("vxplane", DXY_VXP / 2., DXY_VXP / 2., DZ_VXP / 2.);
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G4LV* lv_vxp = new G4LV(sld_vxp, water, "vxplane");
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va = new G4VA(G4Color(1., 0., 0.));
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va->SetVisibility(false);
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lv_vxp->SetVisAttributes(va);
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for (G4int iz = 0; iz < 500; iz++) {
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G4double z0 = -DZ_PHANTOM / 2. + (iz + 0.5) * DZ_VXP;
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new G4PVP(0, G4ThreeVector(0., 0., z0), lv_vxp, "vxplane", lv_phantom, false, 1000 + iz);
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}
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// voxel parameterized
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G4Box* sld_voxel = new G4Box("voxel", 1., 1., 1.); // dummy
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flv_voxel = new G4LV(sld_voxel, water, "voxel");
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va = new G4VA(G4Color(0., 1., 1.));
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va->SetVisibility(false);
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flv_voxel->SetVisAttributes(va);
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const G4int nvoxels = 100 * 100;
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new G4PVParameterised("voxle", flv_voxel, lv_vxp, kUndefined, nvoxels, new VoxelParam());
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return world;
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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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flv_voxel->SetSensitiveDetector(new VoxelSD("voxel"));
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}
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