34{
35 G4ThreeVector materialPosition(0.,0.,0.);
36
37
38
39 G4Box* worldBox = new G4Box("WorldBox",25000.,25000.,25000.);
40
41
42 G4Material* g4vacuum = G4Material::GetMaterial("Vacuum",false);
43 if(!g4vacuum) g4vacuum = new G4Material("FatrasDummyVacuum",1.,1.01*CLHEP::g/CLHEP::mole,
44 CLHEP::universe_mean_density,
45 kStateGas,0.1*CLHEP::kelvin, 1.e-19*CLHEP::pascal);
46
48 new G4LogicalVolume(worldBox,g4vacuum,
"WorldLogical", 0, 0, 0);
50 new G4PVPlacement(0,materialPosition,
"WorldPhysical",
m_worldLog,0,false,0);
51
52
53
54
55
56
57
58
59
60}