Import Geant4 11.2.0.beta source tree

2023-06-30 09:09:57 +02:00
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+//
+// ********************************************************************
+// * License and Disclaimer                                           *
+// *                                                                  *
+// * The  Geant4 software  is  copyright of the Copyright Holders  of *
+// * the Geant4 Collaboration.  It is provided  under  the terms  and *
+// * conditions of the Geant4 Software License,  included in the file *
+// * LICENSE and available at  http://cern.ch/geant4/license .  These *
+// * include a list of copyright holders.                             *
+// *                                                                  *
+// * Neither the authors of this software system, nor their employing *
+// * institutes,nor the agencies providing financial support for this *
+// * work  make  any representation or  warranty, express or implied, *
+// * regarding  this  software system or assume any liability for its *
+// * use.  Please see the license in the file  LICENSE  and URL above *
+// * for the full disclaimer and the limitation of liability.         *
+// *                                                                  *
+// * This  code  implementation is the result of  the  scientific and *
+// * technical work of the GEANT4 collaboration.                      *
+// * By using,  copying,  modifying or  distributing the software (or *
+// * any work based  on the software)  you  agree  to acknowledge its *
+// * use  in  resulting  scientific  publications,  and indicate your *
+// * acceptance of all terms of the Geant4 Software license.          *
+// ********************************************************************
+//
+///  \file DetectorConstruction.cc
+///  \brief Example of empty world volume.
+//
+//  Author: G.Hugo, 06 January 2023
+//
+// ***************************************************************************
+//
+///      DetectorConstruction
+//
+//  Example of empty world volume.
+//
+// ***************************************************************************
+
+#include "DetectorConstruction.hh"
+
+#include "G4Box.hh"
+#include "G4NistManager.hh"
+#include "G4Material.hh"
+#include "G4LogicalVolume.hh"
+#include "G4VPhysicalVolume.hh"
+#include "G4PVPlacement.hh"
+
+#include "G4SystemOfUnits.hh"
+
+
+// ***************************************************************************
+// Returns a 1-cm sided box filled with G4_Galactic.
+// ***************************************************************************
+G4VPhysicalVolume* DetectorConstruction::Construct() {
+
+  
+  G4Box* const worldSolid = new G4Box("World", 1.*CLHEP::cm, 1.*CLHEP::cm, 1.*CLHEP::cm);
+
+  G4Material* const worldMaterial = G4NistManager::Instance()->FindOrBuildMaterial("G4_Galactic");
+  G4LogicalVolume* const worldLogicalVol = new G4LogicalVolume(worldSolid, worldMaterial, "World");
+  // NB: G4LogicalVolumeStore owns all logical volumes.
+
+  G4VPhysicalVolume* const worldPhysicalVol  = new G4PVPlacement(nullptr, 
+                                                              G4ThreeVector(),
+                                                              worldLogicalVol, 
+                                                              "World", 
+                                                              nullptr, 
+                                                              false, 
+                                                              0);
+  // NB: G4PhysicalVolumeStore owns all physical volumes.
+
+  return worldPhysicalVol;
+}
+
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