[807] | 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 | // $Id: DetectorConstruction.cc,v 1.13 2006/09/25 17:06:29 maire Exp $ |
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| 27 | // GEANT4 tag $Name: geant4-09-01-patch-02 $ |
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| 28 | // |
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| 29 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo...... |
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| 30 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo...... |
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| 31 | |
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| 32 | #include "DetectorConstruction.hh" |
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| 33 | #include "DetectorMessenger.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 "G4UniformMagField.hh" |
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| 40 | |
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| 41 | #include "G4GeometryManager.hh" |
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| 42 | #include "G4PhysicalVolumeStore.hh" |
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| 43 | #include "G4LogicalVolumeStore.hh" |
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| 44 | #include "G4SolidStore.hh" |
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| 45 | |
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| 46 | #include "G4UnitsTable.hh" |
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| 47 | #include "G4NistManager.hh" |
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| 48 | |
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| 49 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo...... |
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| 50 | |
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| 51 | DetectorConstruction::DetectorConstruction() |
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| 52 | :AbsorberMaterial(0),WorldMaterial(0),defaultWorld(true), |
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| 53 | solidWorld(0),logicWorld(0),physiWorld(0), |
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| 54 | solidAbsorber(0),logicAbsorber(0),physiAbsorber(0), |
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| 55 | magField(0) |
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| 56 | { |
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| 57 | // default parameter values of the calorimeter |
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| 58 | AbsorberThickness = 1.*cm; |
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| 59 | AbsorberSizeYZ = 2.*cm; |
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| 60 | XposAbs = 0.*cm; |
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| 61 | ComputeCalorParameters(); |
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| 62 | |
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| 63 | // materials |
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| 64 | DefineMaterials(); |
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| 65 | SetWorldMaterial ("Galactic"); |
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| 66 | SetAbsorberMaterial("Silicon"); |
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| 67 | |
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| 68 | // create commands for interactive definition of the calorimeter |
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| 69 | detectorMessenger = new DetectorMessenger(this); |
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| 70 | } |
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| 71 | |
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| 72 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo...... |
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| 73 | |
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| 74 | DetectorConstruction::~DetectorConstruction() |
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| 75 | { |
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| 76 | delete detectorMessenger; |
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| 77 | } |
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| 78 | |
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| 79 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo...... |
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| 80 | |
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| 81 | G4VPhysicalVolume* DetectorConstruction::Construct() |
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| 82 | { |
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| 83 | return ConstructCalorimeter(); |
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| 84 | } |
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| 85 | |
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| 86 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo...... |
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| 87 | |
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| 88 | void DetectorConstruction::DefineMaterials() |
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| 89 | { |
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| 90 | //This function illustrates the possible ways to define materials |
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| 91 | |
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| 92 | G4String symbol; //a=mass of a mole; |
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| 93 | G4double a, z, density; //z=mean number of protons; |
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| 94 | |
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| 95 | G4int ncomponents, natoms; |
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| 96 | G4double fractionmass; |
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| 97 | G4double temperature, pressure; |
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| 98 | |
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| 99 | // |
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| 100 | // define Elements |
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| 101 | // |
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| 102 | |
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| 103 | G4Element* H = new G4Element("Hydrogen",symbol="H", z= 1, a= 1.01*g/mole); |
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| 104 | G4Element* C = new G4Element("Carbon", symbol="C", z= 6, a= 12.01*g/mole); |
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| 105 | G4Element* N = new G4Element("Nitrogen",symbol="N", z= 7, a= 14.01*g/mole); |
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| 106 | G4Element* O = new G4Element("Oxygen", symbol="O", z= 8, a= 16.00*g/mole); |
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| 107 | G4Element* Na = new G4Element("Sodium", symbol="Na", z=11, a= 22.99*g/mole); |
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| 108 | G4Element* Ar = new G4Element("Argon", symbol="Ar", z=18, a= 39.95*g/mole); |
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| 109 | G4Element* I = new G4Element("Iodine", symbol="I" , z=53, a= 126.90*g/mole); |
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| 110 | G4Element* Xe = new G4Element("Xenon", symbol="Xe", z=54, a= 131.29*g/mole); |
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| 111 | |
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| 112 | // |
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| 113 | // define simple materials |
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| 114 | // |
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| 115 | |
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| 116 | new G4Material("H2Liq" , z= 1, a= 1.01*g/mole, density= 70.8*mg/cm3); |
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| 117 | new G4Material("Beryllium", z= 4, a= 9.01*g/mole, density= 1.848*g/cm3); |
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| 118 | new G4Material("Aluminium", z=13, a=26.98*g/mole, density= 2.700*g/cm3); |
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| 119 | new G4Material("Silicon" , z=14, a=28.09*g/mole, density= 2.330*g/cm3); |
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| 120 | |
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| 121 | G4Material* lAr = |
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| 122 | new G4Material("liquidArgon", density= 1.390*g/cm3, ncomponents=1); |
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| 123 | lAr->AddElement(Ar, natoms=1); |
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| 124 | |
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| 125 | new G4Material("Iron", z=26, a= 55.85*g/mole, density= 7.870*g/cm3); |
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| 126 | new G4Material("Copper", z=29, a= 63.55*g/mole, density= 8.960*g/cm3); |
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| 127 | new G4Material("Silver", z=47, a=107.87*g/mole, density= 10.50*g/cm3); |
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| 128 | new G4Material("Tungsten", z=74, a=183.85*g/mole, density= 19.30*g/cm3); |
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| 129 | new G4Material("Gold", z=79, a=196.97*g/mole, density= 19.32*g/cm3); |
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| 130 | new G4Material("Lead", z=82, a=207.19*g/mole, density= 11.35*g/cm3); |
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| 131 | |
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| 132 | // |
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| 133 | // define a material from elements. case 1: chemical molecule |
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| 134 | // |
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| 135 | |
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| 136 | G4Material* H2O = new G4Material("Water", density= 1.000*g/cm3, ncomponents=2); |
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| 137 | H2O->AddElement(H, natoms=2); |
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| 138 | H2O->AddElement(O, natoms=1); |
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| 139 | H2O->GetIonisation()->SetMeanExcitationEnergy(75*eV); |
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| 140 | |
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| 141 | G4Material* CH = new G4Material("Plastic", density= 1.04*g/cm3, ncomponents=2); |
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| 142 | CH->AddElement(C, natoms=1); |
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| 143 | CH->AddElement(H, natoms=1); |
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| 144 | |
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| 145 | G4Material* NaI = new G4Material("NaI", density= 3.67*g/cm3, ncomponents=2); |
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| 146 | NaI->AddElement(Na, natoms=1); |
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| 147 | NaI->AddElement(I , natoms=1); |
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| 148 | NaI->GetIonisation()->SetMeanExcitationEnergy(452*eV); |
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| 149 | |
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| 150 | // |
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| 151 | // define a material from elements. case 2: mixture by fractional mass |
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| 152 | // |
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| 153 | |
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| 154 | G4Material* Air = new G4Material("Air", density= 1.290*mg/cm3, ncomponents=2); |
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| 155 | Air->AddElement(N, fractionmass=0.7); |
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| 156 | Air->AddElement(O, fractionmass=0.3); |
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| 157 | |
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| 158 | G4Material* Air20 = |
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| 159 | new G4Material("Air20", density= 1.205*mg/cm3, ncomponents=2, |
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| 160 | kStateGas, 293.*kelvin, 1.*atmosphere); |
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| 161 | Air20->AddElement(N, fractionmass=0.7); |
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| 162 | Air20->AddElement(O, fractionmass=0.3); |
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| 163 | |
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| 164 | //Graphite |
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| 165 | // |
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| 166 | G4Material* Graphite = |
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| 167 | new G4Material("Graphite", density= 1.7*g/cm3, ncomponents=1); |
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| 168 | Graphite->AddElement(C, fractionmass=1.); |
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| 169 | |
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| 170 | //Havar |
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| 171 | // |
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| 172 | G4Element* Cr = new G4Element("Chrome", "Cr", z=25, a= 51.996*g/mole); |
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| 173 | G4Element* Fe = new G4Element("Iron" , "Fe", z=26, a= 55.845*g/mole); |
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| 174 | G4Element* Co = new G4Element("Cobalt", "Co", z=27, a= 58.933*g/mole); |
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| 175 | G4Element* Ni = new G4Element("Nickel", "Ni", z=28, a= 58.693*g/mole); |
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| 176 | G4Element* W = new G4Element("Tungsten","W", z=74, a= 183.850*g/mole); |
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| 177 | |
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| 178 | G4Material* Havar = |
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| 179 | new G4Material("Havar", density= 8.3*g/cm3, ncomponents=5); |
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| 180 | Havar->AddElement(Cr, fractionmass=0.1785); |
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| 181 | Havar->AddElement(Fe, fractionmass=0.1822); |
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| 182 | Havar->AddElement(Co, fractionmass=0.4452); |
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| 183 | Havar->AddElement(Ni, fractionmass=0.1310); |
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| 184 | Havar->AddElement(W , fractionmass=0.0631); |
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| 185 | |
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| 186 | // |
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| 187 | // examples of gas |
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| 188 | // |
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| 189 | new G4Material("ArgonGas", z=18, a=39.948*g/mole, density= 1.782*mg/cm3, |
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| 190 | kStateGas, 273.15*kelvin, 1*atmosphere); |
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| 191 | |
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| 192 | new G4Material("XenonGas", z=54, a=131.29*g/mole, density= 5.458*mg/cm3, |
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| 193 | kStateGas, 293.15*kelvin, 1*atmosphere); |
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| 194 | |
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| 195 | G4Material* CO2 = |
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| 196 | new G4Material("CarbonicGas", density= 1.977*mg/cm3, ncomponents=2); |
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| 197 | CO2->AddElement(C, natoms=1); |
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| 198 | CO2->AddElement(O, natoms=2); |
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| 199 | |
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| 200 | G4Material* ArCO2 = |
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| 201 | new G4Material("ArgonCO2", density= 1.8223*mg/cm3, ncomponents=2); |
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| 202 | ArCO2->AddElement (Ar, fractionmass=0.7844); |
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| 203 | ArCO2->AddMaterial(CO2, fractionmass=0.2156); |
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| 204 | |
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| 205 | //another way to define mixture of gas per volume |
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| 206 | G4Material* NewArCO2 = |
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| 207 | new G4Material("NewArgonCO2", density= 1.8223*mg/cm3, ncomponents=3); |
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| 208 | NewArCO2->AddElement (Ar, natoms=8); |
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| 209 | NewArCO2->AddElement (C, natoms=2); |
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| 210 | NewArCO2->AddElement (O, natoms=4); |
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| 211 | |
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| 212 | G4Material* ArCH4 = |
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| 213 | new G4Material("ArgonCH4", density= 1.709*mg/cm3, ncomponents=3); |
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| 214 | ArCH4->AddElement (Ar, natoms=93); |
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| 215 | ArCH4->AddElement (C, natoms=7); |
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| 216 | ArCH4->AddElement (H, natoms=28); |
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| 217 | |
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| 218 | G4Material* XeCH = |
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| 219 | new G4Material("XenonMethanePropane", density= 4.9196*mg/cm3, ncomponents=3, |
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| 220 | kStateGas, 293.15*kelvin, 1*atmosphere); |
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| 221 | XeCH->AddElement (Xe, natoms=875); |
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| 222 | XeCH->AddElement (C, natoms=225); |
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| 223 | XeCH->AddElement (H, natoms=700); |
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| 224 | |
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| 225 | G4Material* steam = |
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| 226 | new G4Material("WaterSteam", density= 1.0*mg/cm3, ncomponents=1); |
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| 227 | steam->AddMaterial(H2O, fractionmass=1.); |
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| 228 | steam->GetIonisation()->SetMeanExcitationEnergy(71.6*eV); |
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| 229 | |
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| 230 | // |
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| 231 | // example of vacuum |
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| 232 | // |
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| 233 | |
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| 234 | density = universe_mean_density; //from PhysicalConstants.h |
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| 235 | pressure = 3.e-18*pascal; |
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| 236 | temperature = 2.73*kelvin; |
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| 237 | new G4Material("Galactic", z=1, a=1.01*g/mole,density, |
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| 238 | kStateGas,temperature,pressure); |
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| 239 | } |
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| 240 | |
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| 241 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo...... |
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| 242 | |
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| 243 | void DetectorConstruction::ComputeCalorParameters() |
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| 244 | { |
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| 245 | // Compute derived parameters of the calorimeter |
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| 246 | xstartAbs = XposAbs-0.5*AbsorberThickness; |
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| 247 | xendAbs = XposAbs+0.5*AbsorberThickness; |
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| 248 | |
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| 249 | if (defaultWorld) { |
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| 250 | WorldSizeX = 1.5*AbsorberThickness; WorldSizeYZ= 1.2*AbsorberSizeYZ; |
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| 251 | } |
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| 252 | } |
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| 253 | |
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| 254 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo...... |
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| 255 | |
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| 256 | G4VPhysicalVolume* DetectorConstruction::ConstructCalorimeter() |
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| 257 | { |
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| 258 | // Cleanup old geometry |
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| 259 | // |
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| 260 | G4GeometryManager::GetInstance()->OpenGeometry(); |
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| 261 | G4PhysicalVolumeStore::GetInstance()->Clean(); |
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| 262 | G4LogicalVolumeStore::GetInstance()->Clean(); |
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| 263 | G4SolidStore::GetInstance()->Clean(); |
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| 264 | |
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| 265 | // complete the Calor parameters definition |
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| 266 | ComputeCalorParameters(); |
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| 267 | |
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| 268 | // World |
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| 269 | // |
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| 270 | solidWorld = new G4Box("World", //its name |
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| 271 | WorldSizeX/2,WorldSizeYZ/2,WorldSizeYZ/2); //its size |
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| 272 | |
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| 273 | logicWorld = new G4LogicalVolume(solidWorld, //its solid |
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| 274 | WorldMaterial, //its material |
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| 275 | "World"); //its name |
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| 276 | |
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| 277 | physiWorld = new G4PVPlacement(0, //no rotation |
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| 278 | G4ThreeVector(), //at (0,0,0) |
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| 279 | logicWorld, //its logical volume |
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| 280 | "World", //its name |
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| 281 | 0, //its mother volume |
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| 282 | false, //no boolean operation |
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| 283 | 0); //copy number |
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| 284 | |
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| 285 | // Absorber |
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| 286 | // |
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| 287 | solidAbsorber = new G4Box("Absorber", |
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| 288 | AbsorberThickness/2,AbsorberSizeYZ/2,AbsorberSizeYZ/2); |
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| 289 | |
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| 290 | logicAbsorber = new G4LogicalVolume(solidAbsorber, //its solid |
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| 291 | AbsorberMaterial, //its material |
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| 292 | "Absorber"); //its name |
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| 293 | |
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| 294 | physiAbsorber = new G4PVPlacement(0, //no rotation |
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| 295 | G4ThreeVector(XposAbs,0.,0.), //its position |
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| 296 | logicAbsorber, //its logical volume |
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| 297 | "Absorber", //its name |
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| 298 | logicWorld, //its mother |
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| 299 | false, //no boulean operat |
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| 300 | 0); //copy number |
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| 301 | |
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| 302 | PrintCalorParameters(); |
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| 303 | |
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| 304 | //always return the physical World |
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| 305 | // |
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| 306 | return physiWorld; |
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| 307 | } |
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| 308 | |
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| 309 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo...... |
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| 310 | |
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| 311 | void DetectorConstruction::PrintCalorParameters() |
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| 312 | { |
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| 313 | G4cout << "\n" << WorldMaterial << G4endl; |
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| 314 | G4cout << "\n" << AbsorberMaterial << G4endl; |
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| 315 | |
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| 316 | G4cout << "\n The WORLD is made of " << G4BestUnit(WorldSizeX,"Length") |
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| 317 | << " of " << WorldMaterial->GetName(); |
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| 318 | G4cout << ". The transverse size (YZ) of the world is " |
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| 319 | << G4BestUnit(WorldSizeYZ,"Length") << G4endl; |
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| 320 | G4cout << " The ABSORBER is made of " |
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| 321 | <<G4BestUnit(AbsorberThickness,"Length") |
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| 322 | << " of " << AbsorberMaterial->GetName(); |
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| 323 | G4cout << ". The transverse size (YZ) is " |
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| 324 | << G4BestUnit(AbsorberSizeYZ,"Length") << G4endl; |
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| 325 | G4cout << " X position of the middle of the absorber " |
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| 326 | << G4BestUnit(XposAbs,"Length"); |
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| 327 | G4cout << G4endl; |
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| 328 | } |
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| 329 | |
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| 330 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo...... |
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| 331 | |
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| 332 | void DetectorConstruction::SetAbsorberMaterial(G4String materialChoice) |
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| 333 | { |
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| 334 | // search the material by its name |
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| 335 | G4Material* pttoMaterial = |
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| 336 | G4NistManager::Instance()->FindOrBuildMaterial(materialChoice); |
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| 337 | |
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| 338 | if (pttoMaterial) AbsorberMaterial = pttoMaterial; |
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| 339 | } |
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| 340 | |
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| 341 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo...... |
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| 342 | |
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| 343 | void DetectorConstruction::SetWorldMaterial(G4String materialChoice) |
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| 344 | { |
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| 345 | // search the material by its name |
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| 346 | G4Material* pttoMaterial = |
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| 347 | G4NistManager::Instance()->FindOrBuildMaterial(materialChoice); |
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| 348 | |
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| 349 | if (pttoMaterial) WorldMaterial = pttoMaterial; |
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| 350 | } |
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| 351 | |
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| 352 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo...... |
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| 353 | |
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| 354 | void DetectorConstruction::SetAbsorberThickness(G4double val) |
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| 355 | { |
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| 356 | AbsorberThickness = val; |
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| 357 | } |
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| 358 | |
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| 359 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo...... |
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| 360 | |
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| 361 | void DetectorConstruction::SetAbsorberSizeYZ(G4double val) |
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| 362 | { |
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| 363 | AbsorberSizeYZ = val; |
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| 364 | } |
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| 365 | |
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| 366 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo...... |
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| 367 | |
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| 368 | void DetectorConstruction::SetWorldSizeX(G4double val) |
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| 369 | { |
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| 370 | WorldSizeX = val; |
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| 371 | defaultWorld = false; |
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| 372 | } |
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| 373 | |
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| 374 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo...... |
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| 375 | |
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| 376 | void DetectorConstruction::SetWorldSizeYZ(G4double val) |
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| 377 | { |
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| 378 | WorldSizeYZ = val; |
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| 379 | defaultWorld = false; |
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| 380 | } |
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| 381 | |
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| 382 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo...... |
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| 383 | |
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| 384 | void DetectorConstruction::SetAbsorberXpos(G4double val) |
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| 385 | { |
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| 386 | XposAbs = val; |
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| 387 | } |
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| 388 | |
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| 389 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo..... |
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| 390 | |
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| 391 | #include "G4FieldManager.hh" |
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| 392 | #include "G4TransportationManager.hh" |
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| 393 | |
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| 394 | void DetectorConstruction::SetMagField(G4double fieldValue) |
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| 395 | { |
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| 396 | //apply a global uniform magnetic field along Z axis |
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| 397 | G4FieldManager* fieldMgr |
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| 398 | = G4TransportationManager::GetTransportationManager()->GetFieldManager(); |
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| 399 | |
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| 400 | if(magField) delete magField; //delete the existing magn field |
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| 401 | |
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| 402 | if(fieldValue!=0.) // create a new one if non nul |
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| 403 | { magField = new G4UniformMagField(G4ThreeVector(0.,0.,fieldValue)); |
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| 404 | fieldMgr->SetDetectorField(magField); |
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| 405 | fieldMgr->CreateChordFinder(magField); |
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| 406 | } else { |
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| 407 | magField = NULL; |
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| 408 | fieldMgr->SetDetectorField(magField); |
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| 409 | } |
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| 410 | } |
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| 411 | |
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| 412 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo..... |
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| 413 | |
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| 414 | #include "G4RunManager.hh" |
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| 415 | |
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| 416 | void DetectorConstruction::UpdateGeometry() |
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| 417 | { |
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| 418 | G4RunManager::GetRunManager()->DefineWorldVolume(ConstructCalorimeter()); |
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| 419 | } |
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| 420 | |
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| 421 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo...... |
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| 422 | |
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