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examples/extended/radioactivedecay/rdecay01/src/DetectorConstruction.cc
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29 // $Id: DetectorConstruction.cc 98257 2016-07-04 17:39:46Z gcosmo $
30 //
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33 
34 #include "DetectorConstruction.hh"
35 
36 #include "G4NistManager.hh"
37 #include "G4Box.hh"
38 #include "G4LogicalVolume.hh"
39 #include "G4PVPlacement.hh"
40 #include "G4SystemOfUnits.hh"
41 
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43 
46 {
47  fWorldSize = 20*mm;
48 }
49 
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51 
53 {}
54 
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56 
58 {
59  //
60  // define a material
61  //
62  G4Material* Air =
64 
65  //
66  // World
67  //
68  G4Box*
69  solidWorld = new G4Box("World", //its name
70  fWorldSize/2,fWorldSize/2,fWorldSize/2);//its size
71 
73  logicWorld = new G4LogicalVolume(solidWorld, //its solid
74  Air, //its material
75  "World"); //its name
77  physiWorld = new G4PVPlacement(0, //no rotation
78  G4ThreeVector(), //at (0,0,0)
79  logicWorld, //its logical volume
80  "World", //its name
81  0, //its mother volume
82  false, //no boolean operation
83  0); //copy number
84 
85  //
86  //always return the physical World
87  //
88  return physiWorld;
89 }
90 
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CLHEP::Hep3Vector G4ThreeVector
static constexpr double mm
Definition: G4SIunits.hh:115
Definition: G4Box.hh:64
G4Material * FindOrBuildMaterial(const G4String &name, G4bool isotopes=true, G4bool warning=false)
static G4NistManager * Instance()