Gabriele Cosmo
492 lines
15 KiB
C++
492 lines
15 KiB
C++
//
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// ********************************************************************
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// * License and Disclaimer *
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// * *
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// * The Geant4 software is copyright of the Copyright Holders of *
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// * the Geant4 Collaboration. It is provided under the terms and *
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// * conditions of the Geant4 Software License, included in the file *
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// * LICENSE and available at http://cern.ch/geant4/license . These *
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// * include a list of copyright holders. *
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// * *
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// * Neither the authors of this software system, nor their employing *
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// * institutes,nor the agencies providing financial support for this *
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// * work make any representation or warranty, express or implied, *
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// * regarding this software system or assume any liability for its *
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// * use. Please see the license in the file LICENSE and URL above *
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// * for the full disclaimer and the limitation of liability. *
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// * *
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// * This code implementation is the result of the scientific and *
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// * technical work of the GEANT4 collaboration. *
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// * By using, copying, modifying or distributing the software (or *
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// * any work based on the software) you agree to acknowledge its *
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// * use in resulting scientific publications, and indicate your *
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// * acceptance of all terms of the Geant4 Software license. *
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// ********************************************************************
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//
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//
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// $Id: F03DetectorConstruction.cc,v 1.13 2009-11-05 01:10:06 gum Exp $
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// GEANT4 tag $Name: not supported by cvs2svn $
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//
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//
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#include "F03DetectorConstruction.hh"
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#include "F03DetectorMessenger.hh"
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#include "F03CalorimeterSD.hh"
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#include "F03FieldSetup.hh"
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#include "G4Material.hh"
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#include "G4Tubs.hh"
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#include "G4LogicalVolume.hh"
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#include "G4PVPlacement.hh"
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#include "G4UniformMagField.hh"
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#include "G4FieldManager.hh"
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#include "G4TransportationManager.hh"
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#include "G4SDManager.hh"
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#include "G4RunManager.hh"
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#include "G4GeometryManager.hh"
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#include "G4PhysicalVolumeStore.hh"
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#include "G4LogicalVolumeStore.hh"
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#include "G4SolidStore.hh"
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#include "G4ios.hh"
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/////////////////////////////////////////////////////////////////////////////
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//
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//
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F03DetectorConstruction::F03DetectorConstruction()
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: solidWorld(0), logicWorld(0), physiWorld(0),
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solidAbsorber(0),logicAbsorber(0), physiAbsorber(0),
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magField(0), fEmFieldSetup(0), calorimeterSD(0),
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AbsorberMaterial(0), fRadiatorMat(0), worldchanged(false), WorldMaterial(0)
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{
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// default parameter values of the calorimeter
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WorldSizeZ = 44000.*mm;
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WorldSizeR = 22000.*mm;
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AbsorberThickness = 1.0*mm;
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AbsorberRadius = 20000.*mm;
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zAbsorber = 21990.0*mm ;
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fRadThickness = 100*mm ;
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fGasGap = 100*mm ;
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fFoilNumber = 1 ;
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fDetGap = 1.0*mm ;
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fStartR = 40*cm ;
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fStartZ = 10.0*mm ;
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// create commands for interactive definition of the calorimeter
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detectorMessenger = new F03DetectorMessenger(this);
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DefineMaterials();
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fEmFieldSetup = new F03FieldSetup() ;
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}
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//////////////////////////////////////////////////////////////////////////
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//
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//
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F03DetectorConstruction::~F03DetectorConstruction()
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{
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delete detectorMessenger;
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if (fEmFieldSetup) delete fEmFieldSetup ;
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}
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//////////////////////////////////////////////////////////////////////////
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//
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//
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G4VPhysicalVolume* F03DetectorConstruction::Construct()
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{
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return ConstructCalorimeter();
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}
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//////////////////////////////////////////////////////////////////////////////
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//
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//
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void F03DetectorConstruction::DefineMaterials()
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{
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// This function illustrates the possible ways to define materials
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G4String name, symbol ; // a=mass of a mole;
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G4double a, z, density ; // z=mean number of protons;
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G4int nel ;
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G4int ncomponents;
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G4double fractionmass, pressure, temperature;
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//
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// define Elements
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//
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a = 1.01*g/mole;
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G4Element* elH = new G4Element(name="Hydrogen",symbol="H" , z= 1., a);
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a = 12.01*g/mole;
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G4Element* elC = new G4Element(name="Carbon", symbol="C", z=6., a);
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a = 14.01*g/mole;
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G4Element* elN = new G4Element(name="Nitrogen",symbol="N" , z= 7., a);
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a = 16.00*g/mole;
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G4Element* elO = new G4Element(name="Oxygen" ,symbol="O" , z= 8., a);
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a = 39.948*g/mole;
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G4Element* elAr = new G4Element(name="Argon", symbol="Ar", z=18., a);
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//
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// define simple materials
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//
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// Mylar
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density = 1.39*g/cm3;
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G4Material* Mylar = new G4Material(name="Mylar", density, nel=3);
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Mylar->AddElement(elO,2);
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Mylar->AddElement(elC,5);
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Mylar->AddElement(elH,4);
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// Polypropelene
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G4Material* CH2 = new G4Material ("Polypropelene" , 0.91*g/cm3, 2);
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CH2->AddElement(elH,2);
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CH2->AddElement(elC,1);
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// Krypton as detector gas, STP
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density = 3.700*mg/cm3 ;
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a = 83.80*g/mole ;
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G4Material* Kr = new G4Material(name="Kr",z=36., a, density );
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// Dry air (average composition)
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density = 1.7836*mg/cm3 ; // STP
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G4Material* Argon = new G4Material(name="Argon" , density, ncomponents=1);
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Argon->AddElement(elAr, 1);
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density = 1.25053*mg/cm3 ; // STP
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G4Material* Nitrogen = new G4Material(name="N2" , density, ncomponents=1);
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Nitrogen->AddElement(elN, 2);
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density = 1.4289*mg/cm3 ; // STP
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G4Material* Oxygen = new G4Material(name="O2" , density, ncomponents=1);
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Oxygen->AddElement(elO, 2);
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density = 1.2928*mg/cm3 ; // STP
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density *= 1.0e-8 ; // pumped vacuum
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temperature = STP_Temperature;
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pressure = 1.0e-8*STP_Pressure;
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G4Material* Air = new G4Material(name="Air" , density, ncomponents=3,
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kStateGas,temperature,pressure);
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Air->AddMaterial( Nitrogen, fractionmass = 0.7557 ) ;
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Air->AddMaterial( Oxygen, fractionmass = 0.2315 ) ;
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Air->AddMaterial( Argon, fractionmass = 0.0128 ) ;
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// Xenon as detector gas, STP
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density = 5.858*mg/cm3 ;
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a = 131.29*g/mole ;
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G4Material* Xe = new G4Material(name="Xenon",z=54., a, density );
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// Carbon dioxide, STP
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density = 1.842*mg/cm3;
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G4Material* CarbonDioxide = new G4Material(name="CO2", density, nel=2);
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CarbonDioxide->AddElement(elC,1);
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CarbonDioxide->AddElement(elO,2);
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// 80% Xe + 20% CO2, STP
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density = 5.0818*mg/cm3 ;
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G4Material* Xe20CO2 = new G4Material(name="Xe20CO2" , density, ncomponents=2);
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Xe20CO2->AddMaterial( Xe, fractionmass = 0.922 ) ;
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Xe20CO2->AddMaterial( CarbonDioxide, fractionmass = 0.078 ) ;
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// 80% Kr + 20% CO2, STP
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density = 3.601*mg/cm3 ;
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G4Material* Kr20CO2 = new G4Material(name="Kr20CO2" , density,
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ncomponents=2);
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Kr20CO2->AddMaterial( Kr, fractionmass = 0.89 ) ;
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Kr20CO2->AddMaterial( CarbonDioxide, fractionmass = 0.11 ) ;
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G4cout << *(G4Material::GetMaterialTable()) << G4endl;
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//default materials of the calorimeter and TR radiator
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fRadiatorMat = Air ; // CH2 ; // Mylar ;
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AbsorberMaterial = Air ; // Kr20CO2 ; // XeCO2CF4 ;
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WorldMaterial = Air ;
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}
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/////////////////////////////////////////////////////////////////////////
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//
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//
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G4VPhysicalVolume* F03DetectorConstruction::ConstructCalorimeter()
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{
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G4int j ;
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G4double zModule, zRadiator;
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// complete the Calor parameters definition and Print
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ComputeCalorParameters();
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PrintCalorParameters();
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// Cleanup old geometry
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if (physiWorld)
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{
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G4GeometryManager::GetInstance()->OpenGeometry();
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G4PhysicalVolumeStore::GetInstance()->Clean();
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G4LogicalVolumeStore::GetInstance()->Clean();
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G4SolidStore::GetInstance()->Clean();
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}
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solidWorld = new G4Tubs("World", // its name
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0.,WorldSizeR,WorldSizeZ/2.,0.,twopi); // its size
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logicWorld = new G4LogicalVolume(solidWorld, // its solid
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WorldMaterial, // its material
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"World"); // its name
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physiWorld = new G4PVPlacement(0, // no rotation
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G4ThreeVector(), // at (0,0,0)
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"World", // its name
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logicWorld, // its logical volume
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0, // its mother volume
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false, // no boolean operation
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0); // copy number
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// TR radiator envelope
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G4double radThick = fFoilNumber*(fRadThickness + fGasGap) + fDetGap ;
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G4double zRad = zAbsorber - 20*cm - 0.5*radThick ;
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G4cout<<"zRad = "<<zRad/mm<<" mm"<<G4endl ;
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radThick *= 1.02 ;
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G4cout<<"radThick = "<<radThick/mm<<" mm"<<G4endl ;
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G4cout<<"fFoilNumber = "<<fFoilNumber<<G4endl ;
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G4cout<<"fRadiatorMat = "<<fRadiatorMat->GetName()<<G4endl ;
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G4cout<<"WorldMaterial = "<<WorldMaterial->GetName()<<G4endl ;
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solidRadiator = new G4Tubs("Radiator",0.0,
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1.01*AbsorberRadius,
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0.5*radThick,0.0,twopi ) ;
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logicRadiator = new G4LogicalVolume(solidRadiator,
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WorldMaterial,
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"Radiator");
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// Set local field manager and local field in radiator and its daughters:
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G4bool allLocal = true ;
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logicRadiator->SetFieldManager( fEmFieldSetup->GetLocalFieldManager(),
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allLocal ) ;
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physiRadiator = new G4PVPlacement(0,
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G4ThreeVector(0,0,zRad),
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"Radiator", logicRadiator,
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physiWorld, false, 0 );
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fSolidRadSlice = new G4Tubs("RadSlice",0.0,
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AbsorberRadius,0.5*fRadThickness,0.0,twopi ) ;
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fLogicRadSlice = new G4LogicalVolume(fSolidRadSlice,fRadiatorMat,
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"RadSlice",0,0,0);
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zModule = zRad + 0.5*radThick/1.02 ;
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G4cout<<"zModule = "<<zModule/mm<<" mm"<<G4endl ;
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for(j=0;j<fFoilNumber;j++)
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{
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zRadiator = zModule - j*(fRadThickness + fGasGap) ;
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G4cout<<zRadiator/mm<<" mm"<<"\t" ;
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// G4cout<<"j = "<<j<<"\t" ;
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fPhysicRadSlice = new G4PVPlacement(0,G4ThreeVector(0.,0.,zRadiator-zRad),
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"RadSlice",fLogicRadSlice,
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physiRadiator,false,j);
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}
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G4cout<<G4endl ;
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// Absorber
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if (AbsorberThickness > 0.)
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{
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solidAbsorber = new G4Tubs("Absorber", 1.0*mm,
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AbsorberRadius,
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AbsorberThickness/2.,
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0.0,twopi);
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logicAbsorber = new G4LogicalVolume(solidAbsorber,
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AbsorberMaterial,
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"Absorber");
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physiAbsorber = new G4PVPlacement(0,
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G4ThreeVector(0.,0.,zAbsorber),
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"Absorber",
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logicAbsorber,
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physiWorld,
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false,
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0);
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}
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// Sensitive Detectors: Absorber
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G4SDManager* SDman = G4SDManager::GetSDMpointer();
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if(!calorimeterSD)
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{
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calorimeterSD = new F03CalorimeterSD("CalorSD",this);
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SDman->AddNewDetector( calorimeterSD );
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}
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if (logicAbsorber) logicAbsorber->SetSensitiveDetector(calorimeterSD);
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return physiWorld;
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}
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////////////////////////////////////////////////////////////////////////////
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//
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//
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void F03DetectorConstruction::PrintCalorParameters()
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{
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G4cout << "\n The WORLD is made of "
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<< WorldSizeZ/mm << "mm of " << WorldMaterial->GetName() ;
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G4cout << ", the transverse size (R) of the world is " << WorldSizeR/mm << " mm. " << G4endl;
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G4cout << " The ABSORBER is made of "
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<< AbsorberThickness/mm << "mm of " << AbsorberMaterial->GetName() ;
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G4cout << ", the transverse size (R) is " << AbsorberRadius/mm << " mm. " << G4endl;
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G4cout << " Z position of the (middle of the) absorber " << zAbsorber/mm << " mm." << G4endl;
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G4cout << G4endl;
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}
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///////////////////////////////////////////////////////////////////////////
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//
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//
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void F03DetectorConstruction::SetAbsorberMaterial(G4String materialChoice)
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{
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// get the pointer to the material table
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const G4MaterialTable* theMaterialTable = G4Material::GetMaterialTable();
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// search the material by its name
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G4Material* pttoMaterial;
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for (size_t J=0 ; J<theMaterialTable->size() ; J++)
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{
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pttoMaterial = (*theMaterialTable)[J];
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if(pttoMaterial->GetName() == materialChoice)
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{
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AbsorberMaterial = pttoMaterial;
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logicAbsorber->SetMaterial(pttoMaterial);
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}
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}
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}
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////////////////////////////////////////////////////////////////////////////
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//
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//
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void F03DetectorConstruction::SetWorldMaterial(G4String materialChoice)
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{
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// get the pointer to the material table
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const G4MaterialTable* theMaterialTable = G4Material::GetMaterialTable();
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// search the material by its name
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G4Material* pttoMaterial;
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for (size_t J=0 ; J<theMaterialTable->size() ; J++)
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{
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pttoMaterial = (*theMaterialTable)[J];
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if(pttoMaterial->GetName() == materialChoice)
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{
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WorldMaterial = pttoMaterial;
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logicWorld->SetMaterial(pttoMaterial);
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}
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}
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}
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///////////////////////////////////////////////////////////////////////////
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//
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//
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void F03DetectorConstruction::SetAbsorberThickness(G4double val)
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{
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// change Absorber thickness and recompute the calorimeter parameters
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AbsorberThickness = val;
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ComputeCalorParameters();
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}
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/////////////////////////////////////////////////////////////////////////////
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//
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//
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void F03DetectorConstruction::SetAbsorberRadius(G4double val)
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{
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// change the transverse size and recompute the calorimeter parameters
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AbsorberRadius = val;
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ComputeCalorParameters();
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}
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////////////////////////////////////////////////////////////////////////////
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//
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//
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void F03DetectorConstruction::SetWorldSizeZ(G4double val)
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{
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worldchanged=true;
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WorldSizeZ = val;
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ComputeCalorParameters();
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}
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///////////////////////////////////////////////////////////////////////////
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//
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//
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void F03DetectorConstruction::SetWorldSizeR(G4double val)
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{
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worldchanged=true;
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WorldSizeR = val;
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ComputeCalorParameters();
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}
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//////////////////////////////////////////////////////////////////////////////
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//
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//
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void F03DetectorConstruction::SetAbsorberZpos(G4double val)
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{
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zAbsorber = val;
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ComputeCalorParameters();
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}
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///////////////////////////////////////////////////////////////////////////////
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//
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//
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void F03DetectorConstruction::UpdateGeometry()
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{
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G4RunManager::GetRunManager()->DefineWorldVolume(ConstructCalorimeter());
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}
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//
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//
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////////////////////////////////////////////////////////////////////////////
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