| 1 | // |
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| 2 | // ******************************************************************** |
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| 3 | // * License and Disclaimer * |
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| 4 | // * * |
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| 5 | // * The Geant4 software is copyright of the Copyright Holders of * |
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| 6 | // * the Geant4 Collaboration. It is provided under the terms and * |
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| 7 | // * conditions of the Geant4 Software License, included in the file * |
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| 8 | // * LICENSE and available at http://cern.ch/geant4/license . These * |
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| 9 | // * include a list of copyright holders. * |
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| 10 | // * * |
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| 11 | // * Neither the authors of this software system, nor their employing * |
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| 12 | // * institutes,nor the agencies providing financial support for this * |
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| 13 | // * work make any representation or warranty, express or implied, * |
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| 14 | // * regarding this software system or assume any liability for its * |
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| 15 | // * use. Please see the license in the file LICENSE and URL above * |
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| 16 | // * for the full disclaimer and the limitation of liability. * |
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| 17 | // * * |
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| 18 | // * This code implementation is the result of the scientific and * |
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| 19 | // * technical work of the GEANT4 collaboration. * |
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| 20 | // * By using, copying, modifying or distributing the software (or * |
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| 21 | // * any work based on the software) you agree to acknowledge its * |
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| 22 | // * use in resulting scientific publications, and indicate your * |
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| 23 | // * acceptance of all terms of the Geant4 Software license. * |
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| 24 | // ******************************************************************** |
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| 25 | // |
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| 26 | // |
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| 27 | // $Id: TEx01DetectorConstruction.cc,v 1.2 2006/06/29 18:51:28 gunter Exp $ |
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| 28 | // GEANT4 tag $Name: geant4-09-04-ref-00 $ |
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| 29 | // |
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| 30 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo...... |
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| 31 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo...... |
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| 32 | |
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| 33 | #include "TEx01DetectorConstruction.hh" |
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| 34 | |
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| 35 | #include "G4Material.hh" |
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| 36 | #include "G4Box.hh" |
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| 37 | #include "G4LogicalVolume.hh" |
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| 38 | #include "G4PVPlacement.hh" |
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| 39 | #include "G4PVParameterised.hh" |
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| 40 | #include "G4SDManager.hh" |
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| 41 | |
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| 42 | #include "G4UserLimits.hh" |
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| 43 | |
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| 44 | #include "G4VisAttributes.hh" |
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| 45 | #include "G4Colour.hh" |
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| 46 | |
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| 47 | #include "G4ios.hh" |
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| 48 | |
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| 49 | #include "G4TriangularFacet.hh" |
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| 50 | #include "G4QuadrangularFacet.hh" |
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| 51 | |
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| 52 | |
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| 53 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo...... |
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| 54 | |
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| 55 | TEx01DetectorConstruction::TEx01DetectorConstruction() |
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| 56 | :solidWorld(0), logicWorld(0), physiWorld(0), |
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| 57 | solidTarget(0), logicTarget(0), physiTarget(0) |
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| 58 | {;} |
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| 59 | |
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| 60 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo...... |
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| 61 | |
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| 62 | TEx01DetectorConstruction::~TEx01DetectorConstruction() |
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| 63 | {;} |
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| 64 | |
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| 65 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo...... |
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| 66 | |
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| 67 | G4VPhysicalVolume* TEx01DetectorConstruction::Construct() |
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| 68 | { |
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| 69 | //--------- Material definition --------- |
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| 70 | |
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| 71 | G4double a, z; |
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| 72 | G4double density; |
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| 73 | G4int nel; |
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| 74 | |
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| 75 | //Air |
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| 76 | G4Element* N = new G4Element("Nitrogen", "N", z=7., a= 14.01*g/mole); |
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| 77 | G4Element* O = new G4Element("Oxygen" , "O", z=8., a= 16.00*g/mole); |
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| 78 | |
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| 79 | G4Material* Air = new G4Material("Air", density= 1.29*mg/cm3, nel=2); |
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| 80 | Air->AddElement(N, 70*perCent); |
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| 81 | Air->AddElement(O, 30*perCent); |
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| 82 | |
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| 83 | //Lead |
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| 84 | G4Material* Pb = |
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| 85 | new G4Material("Lead", z=82., a= 207.19*g/mole, density= 11.35*g/cm3); |
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| 86 | |
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| 87 | // Print all the materials defined. |
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| 88 | // |
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| 89 | G4cout << G4endl << "The materials defined are : " << G4endl << G4endl; |
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| 90 | G4cout << *(G4Material::GetMaterialTable()) << G4endl; |
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| 91 | |
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| 92 | //--------- Sizes of the principal geometrical components (solids) --------- |
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| 93 | |
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| 94 | fTargetLength = 10.0 * cm; // Full length of Target |
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| 95 | |
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| 96 | fWorldLength= 1.2 *(fTargetLength*2.0); |
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| 97 | |
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| 98 | G4double targetSize = 0.5*fTargetLength; // Half length of the Target |
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| 99 | |
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| 100 | //--------- Definitions of Solids, Logical Volumes, Physical Volumes --------- |
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| 101 | |
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| 102 | //------------------------------ |
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| 103 | // World |
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| 104 | //------------------------------ |
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| 105 | |
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| 106 | G4double HalfWorldLength = 0.5*fWorldLength; |
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| 107 | |
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| 108 | solidWorld= new G4Box("world",HalfWorldLength,HalfWorldLength,HalfWorldLength); |
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| 109 | logicWorld= new G4LogicalVolume( solidWorld, Air, "World", 0, 0, 0); |
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| 110 | |
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| 111 | // Must place the World Physical volume unrotated at (0,0,0). |
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| 112 | // |
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| 113 | physiWorld = new G4PVPlacement(0, // no rotation |
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| 114 | G4ThreeVector(), // at (0,0,0) |
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| 115 | logicWorld, // its logical volume |
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| 116 | "World", // its name |
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| 117 | 0, // its mother volume |
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| 118 | false, // no boolean operations |
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| 119 | 0); // no field specific to volume |
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| 120 | |
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| 121 | //------------------------------ |
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| 122 | // Target |
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| 123 | //------------------------------ |
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| 124 | |
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| 125 | G4ThreeVector positionTarget = G4ThreeVector(0.0,0.0,0.0); |
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| 126 | |
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| 127 | //solidTarget = new G4Box("target",targetSize,targetSize,targetSize); |
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| 128 | |
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| 129 | solidTarget = new G4TessellatedSolid("target"); |
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| 130 | G4TriangularFacet *facet1 = new |
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| 131 | G4TriangularFacet (G4ThreeVector(-targetSize,-targetSize, 0.0), |
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| 132 | G4ThreeVector(+targetSize,-targetSize, 0.0), |
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| 133 | G4ThreeVector( 0.0, 0.0,+targetSize), |
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| 134 | ABSOLUTE); |
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| 135 | G4TriangularFacet *facet2 = new |
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| 136 | G4TriangularFacet (G4ThreeVector(+targetSize,-targetSize, 0.0), |
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| 137 | G4ThreeVector(+targetSize,+targetSize, 0.0), |
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| 138 | G4ThreeVector( 0.0, 0.0,+targetSize), |
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| 139 | ABSOLUTE); |
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| 140 | G4TriangularFacet *facet3 = new |
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| 141 | G4TriangularFacet (G4ThreeVector(+targetSize,+targetSize, 0.0), |
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| 142 | G4ThreeVector(-targetSize,+targetSize, 0.0), |
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| 143 | G4ThreeVector( 0.0, 0.0,+targetSize), |
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| 144 | ABSOLUTE); |
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| 145 | G4TriangularFacet *facet4 = new |
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| 146 | G4TriangularFacet (G4ThreeVector(-targetSize,+targetSize, 0.0), |
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| 147 | G4ThreeVector(-targetSize,-targetSize, 0.0), |
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| 148 | G4ThreeVector( 0.0, 0.0,+targetSize), |
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| 149 | ABSOLUTE); |
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| 150 | G4QuadrangularFacet *facet5 = new |
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| 151 | G4QuadrangularFacet (G4ThreeVector(-targetSize,-targetSize, 0.0), |
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| 152 | G4ThreeVector(-targetSize,+targetSize, 0.0), |
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| 153 | G4ThreeVector(+targetSize,+targetSize, 0.0), |
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| 154 | G4ThreeVector(+targetSize,-targetSize, 0.0), |
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| 155 | ABSOLUTE); |
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| 156 | |
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| 157 | solidTarget->AddFacet((G4VFacet*) facet1); |
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| 158 | solidTarget->AddFacet((G4VFacet*) facet2); |
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| 159 | solidTarget->AddFacet((G4VFacet*) facet3); |
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| 160 | solidTarget->AddFacet((G4VFacet*) facet4); |
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| 161 | solidTarget->AddFacet((G4VFacet*) facet5); |
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| 162 | |
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| 163 | solidTarget->SetSolidClosed(true); |
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| 164 | logicTarget = new G4LogicalVolume(solidTarget,Pb,"Target",0,0,0); |
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| 165 | physiTarget = new G4PVPlacement(0, // no rotation |
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| 166 | positionTarget, // at (x,y,z) |
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| 167 | logicTarget, // its logical volume |
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| 168 | "Target", // its name |
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| 169 | logicWorld, // its mother volume |
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| 170 | false, // no boolean operations |
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| 171 | 0); // no particular field |
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| 172 | |
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| 173 | //--------- Visualization attributes ------------------------------- |
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| 174 | |
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| 175 | G4VisAttributes* BoxVisAtt= new G4VisAttributes(G4Colour(1.0,1.0,1.0)); |
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| 176 | BoxVisAtt->SetVisibility(false); |
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| 177 | G4VisAttributes* FacetVisAtt= new G4VisAttributes(G4Colour(1.0,0.0,0.0)); |
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| 178 | FacetVisAtt->SetVisibility(true); |
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| 179 | |
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| 180 | logicWorld ->SetVisAttributes(BoxVisAtt); |
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| 181 | logicTarget ->SetVisAttributes(FacetVisAtt); |
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| 182 | |
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| 183 | //--------- example of User Limits ------------------------------- |
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| 184 | |
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| 185 | // below is an example of how to set tracking constraints in a given |
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| 186 | // logical volume(see also in N02PhysicsList how to setup the process |
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| 187 | // G4UserSpecialCuts). |
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| 188 | // Sets a max Step length in the tracker region |
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| 189 | // G4double maxStep = 0.5*ChamberWidth, maxLength = 2*fTrackerLength; |
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| 190 | // G4double maxTime = 0.1*ns, minEkin = 10*MeV; |
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| 191 | // logicTracker->SetUserLimits(new G4UserLimits(maxStep,maxLength,maxTime, |
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| 192 | // minEkin)); |
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| 193 | |
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| 194 | return physiWorld; |
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| 195 | } |
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| 196 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo...... |
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