| 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: Materials.cc,v 1.1 2007/11/16 14:16:46 kmura Exp $
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| 27 | // $Name: $
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| 28 | //
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| 29 | // ====================================================================
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| 30 | // Materials.cc
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| 31 | //
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| 32 | // 2007 Q
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| 33 | // ====================================================================
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| 34 | #include "Materials.hh"
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| 35 | #include "G4Material.hh"
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| 36 |
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| 37 | // ====================================================================
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| 38 | //
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| 39 | // class description
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| 40 | //
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| 41 | // ====================================================================
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| 42 |
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| 43 | //////////////////////
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| 44 | Materials::Materials()
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| 45 | //////////////////////
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| 46 | {
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| 47 | }
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| 48 |
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| 49 |
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| 50 | ///////////////////////
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| 51 | Materials::~Materials()
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| 52 | ///////////////////////
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| 53 | {
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| 54 | }
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| 55 |
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| 56 |
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| 57 | ///////////////////////////
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| 58 | void Materials::Construct()
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| 59 | ///////////////////////////
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| 60 | {
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| 61 | G4double A, Z;
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| 62 |
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| 63 | // ------------------------------------------------------------------------
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| 64 | // Elements
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| 65 | // ------------------------------------------------------------------------
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| 66 | G4Element* elH = new G4Element("Hydrogen","H", Z=1., A=1.00794*g/mole);
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| 67 | G4Element* elC = new G4Element("Carbon", "C", Z=6., A= 12.011 *g/mole);
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| 68 | G4Element* elN = new G4Element("Nitrogen","N", Z=7., A= 14.00674*g/mole);
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| 69 | G4Element* elO = new G4Element("Oxygen", "O", Z=8., A= 15.9994*g/mole);
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| 70 | G4Element* elNa = new G4Element("Sodium", "Na", Z=11., A= 22.989768*g/mole);
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| 71 | G4Element* elSi = new G4Element("Silicon", "Si", Z=14., A= 28.0855*g/mole);
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| 72 | G4Element* elAr = new G4Element("Argon", "Ar", Z=18., A= 39.948*g/mole);
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| 73 | G4Element* elI = new G4Element("Iodine", "I", Z=53., A= 126.90447*g/mole);
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| 74 | G4Element* elCs = new G4Element("Cesium", "Cs", Z=55., A= 132.90543*g/mole);
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| 75 |
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| 76 | // ------------------------------------------------------------------------
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| 77 | // Materials
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| 78 | // ------------------------------------------------------------------------
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| 79 | G4double density, massfraction;
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| 80 | G4int natoms, nel;
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| 81 |
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| 82 | // temperature of experimental hall is controlled at 20 degree.
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| 83 | const G4double expTemp= STP_Temperature+20.*kelvin;
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| 84 |
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| 85 | // vacuum
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| 86 | density= universe_mean_density;
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| 87 | G4Material* Vacuum= new G4Material("Vacuum", density, nel=2);
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| 88 | Vacuum-> AddElement(elN, .7);
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| 89 | Vacuum-> AddElement(elO, .3);
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| 90 |
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| 91 | // air
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| 92 | density= 1.2929e-03 *g/cm3; // at 20 degree
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| 93 | G4Material* Air= new G4Material("Air", density, nel=3,
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| 94 | kStateGas, expTemp);
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| 95 | G4double ttt= 75.47+23.20+1.28;
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| 96 | Air-> AddElement(elN, massfraction= 75.47/ttt);
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| 97 | Air-> AddElement(elO, massfraction= 23.20/ttt);
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| 98 | Air-> AddElement(elAr, massfraction= 1.28/ttt);
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| 99 |
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| 100 | // Ar gas
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| 101 | A= 39.948 *g/mole;
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| 102 | const G4double denAr= 1.782e-03 *g/cm3 * STP_Temperature/expTemp;
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| 103 | G4Material* Ar= new G4Material("ArgonGas", Z=18., A, denAr,
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| 104 | kStateGas, expTemp);
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| 105 |
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| 106 | // ethane (C2H6)
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| 107 | const G4double denEthane= 1.356e-3 *g/cm3 * STP_Temperature/expTemp;
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| 108 | G4Material* Ethane= new G4Material("Ethane", denEthane, nel=2,
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| 109 | kStateGas, expTemp);
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| 110 | Ethane-> AddElement(elC, natoms=2);
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| 111 | Ethane-> AddElement(elH, natoms=6);
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| 112 |
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| 113 | // Ar(50%) + ethane(50%) mixture
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| 114 | density= (denAr+denEthane)/2.;
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| 115 | G4Material* ArEthane= new G4Material("ArEthane", density, nel=2,
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| 116 | kStateGas, expTemp);
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| 117 | ArEthane-> AddMaterial(Ar, massfraction= denAr/density/2.);
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| 118 | ArEthane-> AddMaterial(Ethane, massfraction= denEthane/density/2.);
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| 119 |
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| 120 | // silicon
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| 121 | A= 28.0855 *g/mole;
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| 122 | density= 2.33 *g/cm3;
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| 123 | new G4Material("SiliconWafer", Z=14., A, density);
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| 124 |
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| 125 | // alminium
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| 126 | A= 26.98 *g/mole;
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| 127 | density= 2.70 *g/cm3;
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| 128 | new G4Material("Al", Z=13., A, density);
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| 129 |
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| 130 | // iron
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| 131 | A= 55.847 *g/mole;
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| 132 | density= 7.87 *g/cm3;
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| 133 | new G4Material("Iron", Z=26., A, density);
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| 134 |
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| 135 | // lead
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| 136 | A= 207.2 *g/mole;
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| 137 | density= 11.35 *g/cm3;
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| 138 | new G4Material("Lead", Z=82., A, density);
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| 139 |
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| 140 | // scintillator (Polystyene(C6H5CH=CH2))
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| 141 | density= 1.032 *g/cm3;
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| 142 | G4Material* Scinti= new G4Material("Scinti", density, nel=2);
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| 143 | Scinti-> AddElement(elC, natoms=8);
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| 144 | Scinti-> AddElement(elH, natoms=8);
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| 145 |
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| 146 | // quartz (SiO2, crystalline)
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| 147 | density= 2.64 *g/cm3;
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| 148 | G4Material* Quartz= new G4Material("Quartz", density, nel= 2);
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| 149 | Quartz-> AddElement(elSi, natoms=1);
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| 150 | Quartz-> AddElement(elO, natoms=2);
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| 151 |
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| 152 | // NaI crystal
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| 153 | density= 3.67 *g/cm3;
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| 154 | G4Material* NaI= new G4Material("NaI", density, nel= 2);
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| 155 | NaI-> AddElement(elNa, natoms=1);
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| 156 | NaI-> AddElement(elI, natoms=1);
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| 157 |
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| 158 | // CsI crystal
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| 159 | density= 4.51 *g/cm3;
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| 160 | G4Material* CsI= new G4Material("CsI", density, nel= 2);
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| 161 | CsI-> AddElement(elCs, natoms=1);
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| 162 | CsI-> AddElement(elI, natoms=1);
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| 163 |
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| 164 | }
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