Gabriele Cosmo
143 lines
5.6 KiB
C++
143 lines
5.6 KiB
C++
//
|
|
// ********************************************************************
|
|
// * License and Disclaimer *
|
|
// * *
|
|
// * The Geant4 software is copyright of the Copyright Holders of *
|
|
// * the Geant4 Collaboration. It is provided under the terms and *
|
|
// * conditions of the Geant4 Software License, included in the file *
|
|
// * LICENSE and available at http://cern.ch/geant4/license . These *
|
|
// * include a list of copyright holders. *
|
|
// * *
|
|
// * Neither the authors of this software system, nor their employing *
|
|
// * institutes,nor the agencies providing financial support for this *
|
|
// * work make any representation or warranty, express or implied, *
|
|
// * regarding this software system or assume any liability for its *
|
|
// * use. Please see the license in the file LICENSE and URL above *
|
|
// * for the full disclaimer and the limitation of liability. *
|
|
// * *
|
|
// * This code implementation is the result of the scientific and *
|
|
// * technical work of the GEANT4 collaboration. *
|
|
// * By using, copying, modifying or distributing the software (or *
|
|
// * any work based on the software) you agree to acknowledge its *
|
|
// * use in resulting scientific publications, and indicate your *
|
|
// * acceptance of all terms of the Geant4 Software license. *
|
|
// ********************************************************************
|
|
//
|
|
// ====================================================================
|
|
// Qmaterials.cc
|
|
//
|
|
// 2005 Q
|
|
// ====================================================================
|
|
#include "G4Material.hh"
|
|
#include "G4SystemOfUnits.hh"
|
|
#include "G4PhysicalConstants.hh"
|
|
|
|
////////////////
|
|
void Construct()
|
|
////////////////
|
|
{
|
|
G4double A, Z;
|
|
|
|
// ------------------------------------------------------------------------
|
|
// Elements
|
|
// ------------------------------------------------------------------------
|
|
G4Element* elH = new G4Element("Hydrogen","H", Z=1., A=1.00794*g/mole);
|
|
G4Element* elC = new G4Element("Carbon", "C", Z=6., A= 12.011 *g/mole);
|
|
G4Element* elN = new G4Element("Nitrogen","N", Z=7., A= 14.00674*g/mole);
|
|
G4Element* elO = new G4Element("Oxygen", "O", Z=8., A= 15.9994*g/mole);
|
|
G4Element* elNa = new G4Element("Sodium", "Na", Z=11., A= 22.989768*g/mole);
|
|
G4Element* elSi = new G4Element("Silicon", "Si", Z=14., A= 28.0855*g/mole);
|
|
G4Element* elAr = new G4Element("Argon", "Ar", Z=18., A= 39.948*g/mole);
|
|
G4Element* elI = new G4Element("Iodine", "I", Z=53., A= 126.90447*g/mole);
|
|
G4Element* elCs = new G4Element("Cesium", "Cs", Z=55., A= 132.90543*g/mole);
|
|
|
|
// ------------------------------------------------------------------------
|
|
// Materials
|
|
// ------------------------------------------------------------------------
|
|
G4double density, massfraction;
|
|
G4int natoms, nel;
|
|
|
|
// temperature of experimental hall is controlled at 20 degree.
|
|
const G4double expTemp= STP_Temperature+20.*kelvin;
|
|
|
|
// vacuum
|
|
density= universe_mean_density;
|
|
G4Material* Vacuum= new G4Material("Vacuum", density, nel=2);
|
|
Vacuum-> AddElement(elN, .7);
|
|
Vacuum-> AddElement(elO, .3);
|
|
|
|
// air
|
|
density= 1.2929e-03 *g/cm3; // at 20 degree
|
|
G4Material* Air= new G4Material("Air", density, nel=3,
|
|
kStateGas, expTemp);
|
|
G4double ttt= 75.47+23.20+1.28;
|
|
Air-> AddElement(elN, massfraction= 75.47/ttt);
|
|
Air-> AddElement(elO, massfraction= 23.20/ttt);
|
|
Air-> AddElement(elAr, massfraction= 1.28/ttt);
|
|
|
|
// Ar gas
|
|
A= 39.948 *g/mole;
|
|
const G4double denAr= 1.782e-03 *g/cm3 * STP_Temperature/expTemp;
|
|
G4Material* Ar= new G4Material("ArgonGas", Z=18., A, denAr,
|
|
kStateGas, expTemp);
|
|
|
|
// ethane (C2H6)
|
|
const G4double denEthane= 1.356e-3 *g/cm3 * STP_Temperature/expTemp;
|
|
G4Material* Ethane= new G4Material("Ethane", denEthane, nel=2,
|
|
kStateGas, expTemp);
|
|
Ethane-> AddElement(elC, natoms=2);
|
|
Ethane-> AddElement(elH, natoms=6);
|
|
|
|
// Ar(50%) + ethane(50%) mixture
|
|
density= (denAr+denEthane)/2.;
|
|
G4Material* ArEthane= new G4Material("ArEthane", density, nel=2,
|
|
kStateGas, expTemp);
|
|
ArEthane-> AddMaterial(Ar, massfraction= denAr/density/2.);
|
|
ArEthane-> AddMaterial(Ethane, massfraction= denEthane/density/2.);
|
|
|
|
// silicon
|
|
A= 28.0855 *g/mole;
|
|
density= 2.33 *g/cm3;
|
|
G4Material* Si= new G4Material("SiliconWafer", Z=14., A, density);
|
|
|
|
// alminium
|
|
A= 26.98 *g/mole;
|
|
density= 2.70 *g/cm3;
|
|
G4Material* Al= new G4Material("Al", Z=13., A, density);
|
|
|
|
// iron
|
|
A= 55.847 *g/mole;
|
|
density= 7.87 *g/cm3;
|
|
G4Material* Fe= new G4Material("Iron", Z=26., A, density);
|
|
|
|
// lead
|
|
A= 207.2 *g/mole;
|
|
density= 11.35 *g/cm3;
|
|
G4Material* Pb= new G4Material("Lead", Z=82., A, density);
|
|
|
|
// scintillator (Polystyene(C6H5CH=CH2))
|
|
density= 1.032 *g/cm3;
|
|
G4Material* Scinti= new G4Material("Scinti", density, nel=2);
|
|
Scinti-> AddElement(elC, natoms=8);
|
|
Scinti-> AddElement(elH, natoms=8);
|
|
|
|
// quartz (SiO2, crystalline)
|
|
density= 2.64 *g/cm3;
|
|
G4Material* Quartz= new G4Material("Quartz", density, nel= 2);
|
|
Quartz-> AddElement(elSi, natoms=1);
|
|
Quartz-> AddElement(elO, natoms=2);
|
|
|
|
// NaI crystal
|
|
density= 3.67 *g/cm3;
|
|
G4Material* NaI= new G4Material("NaI", density, nel= 2);
|
|
NaI-> AddElement(elNa, natoms=1);
|
|
NaI-> AddElement(elI, natoms=1);
|
|
|
|
// CsI crystal
|
|
density= 4.51 *g/cm3;
|
|
G4Material* CsI= new G4Material("CsI", density, nel= 2);
|
|
CsI-> AddElement(elCs, natoms=1);
|
|
CsI-> AddElement(elI, natoms=1);
|
|
|
|
}
|