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25 //
26 /// \file Par01/src/Par01ParallelWorldForPion.cc
27 /// \brief Implementation of the Par01ParallelWorldForPion class
28 //
29 //
30 #include "Par01ParallelWorldForPion.hh"
31
32 #include "Par01PionShowerModel.hh"
33
34 #include "G4Box.hh"
35 #include "G4LogicalVolume.hh"
36 #include "G4NistManager.hh"
37 #include "G4PVPlacement.hh"
38 #include "G4Region.hh"
39 #include "G4RegionStore.hh"
40 #include "G4SystemOfUnits.hh"
41 #include "G4ThreeVector.hh"
42
43 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
44
45 Par01ParallelWorldForPion::Par01ParallelWorldForPion(G4String worldName)
46 : G4VUserParallelWorld(worldName)
47 {
48 ;
49 }
50
51 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
52
53 Par01ParallelWorldForPion::~Par01ParallelWorldForPion()
54 {
55 ;
56 }
57
58 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
59
60 void Par01ParallelWorldForPion::Construct()
61 {
62 // -- Get nist material manager
63 G4NistManager* nistManager = G4NistManager::Instance();
64
65 // Build materials
66 G4Material* air = nistManager->FindOrBuildMaterial("G4_AIR");
67
68 // -------------------------------
69 // Build parallel/ghost geometry:
70 // -------------------------------
71
72 // -- Obtain clone of mass geometry world from GetWorld() base class utility:
73 G4VPhysicalVolume* ghostWorld = GetWorld();
74 // -- Why needed ? No default ?
75 ghostWorld->GetLogicalVolume()->SetMaterial(air);
76 G4Region* parallelWorldRegion = new G4Region("ParallelWorldRegion");
77 parallelWorldRegion->AddRootLogicalVolume(ghostWorld->GetLogicalVolume());
78
79 // -- Create box for encompassing Elec.+Had. calorimeters together:
80 G4double detectSize = 125 * cm;
81 G4Box* ghostBox = new G4Box("GhostBox", detectSize + 5 * cm, detectSize + 5 * cm, 80 * cm);
82 // -- Build the subsequent logical volume:
83 G4LogicalVolume* ghostLogical = new G4LogicalVolume(ghostBox,
84 air, // -- no material : IMPOSSIBLE !!!
85 "GhostLogical", 0, 0, 0);
86 // -- And place this logical volume in the parallel geometry:
87 new G4PVPlacement(0, G4ThreeVector(0., 0., 175 * cm), "GhostPhysical", ghostLogical, ghostWorld,
88 false, 0);
89
90 // -----------------------
91 // Setup fast simulation:
92 // -----------------------
93
94 // -- Make Elec+Had logical volume becoming a region:
95 G4cout << "Declaring region..." << G4endl;
96 G4Region* ghostRegion = new G4Region("GhostCalorimeterRegion");
97 G4cout << "... region declared. Setting it the ghostLogical volume..." << G4endl;
98 ghostRegion->AddRootLogicalVolume(ghostLogical);
99 G4cout << "... succes.\n" << G4endl;
100 }
101
102 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
103
104 void Par01ParallelWorldForPion::ConstructSD()
105 {
106 G4RegionStore* regionStore = G4RegionStore::GetInstance();
107
108 G4Region* ghostRegion = regionStore->GetRegion("GhostCalorimeterRegion");
109 // -- Attach fast simulation model (create the G4FastSimulationManager if needed):
110 new Par01PionShowerModel("ghostPionShowerModel", ghostRegion);
111 }
112