275 lines
9.8 KiB
C++
275 lines
9.8 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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/// \file exoticphysics/monopole/src/DetectorConstruction.cc
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/// \brief Implementation of the DetectorConstruction class
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//
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// $Id: DetectorConstruction.cc 104872 2017-06-23 14:19:16Z gcosmo $
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//
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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#include "DetectorConstruction.hh"
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#include "DetectorMessenger.hh"
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#include "G4Material.hh"
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#include "G4Box.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 "G4GeometryManager.hh"
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#include "G4UserLimits.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 "G4UnitsTable.hh"
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#include "G4NistManager.hh"
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#include "G4MonopoleFieldSetup.hh"
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//#include "G4FieldManager.hh"
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//#include "G4TransportationManager.hh"
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#include "G4ThreeVector.hh"
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#include "G4RunManager.hh"
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#include "G4SystemOfUnits.hh"
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#include "G4GlobalMagFieldMessenger.hh"
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#include "G4AutoDelete.hh"
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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DetectorConstruction::DetectorConstruction()
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: G4VUserDetectorConstruction(),
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fWorldMaterial(0),
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fAbsorMaterial(0),
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fLogAbsor(0),
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fMonFieldSetup(0),
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fZMagFieldValue(0.),
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fDetectorMessenger(0)
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{
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// default parameter values
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fAbsorSizeX = fAbsorSizeYZ = 10 * cm;
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fWorldSizeX = fWorldSizeYZ = 1.2 * fAbsorSizeX;
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fMaxStepSize = 5 * mm;
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// fMonFieldSetup = G4MonopoleFieldSetup::GetMonopoleFieldSetup();
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fMonFieldSetup = new G4MonopoleFieldSetup();
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SetMaterial("G4_Al");
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fWorldMaterial =
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G4NistManager::Instance()->FindOrBuildMaterial("G4_Galactic");
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// create commands for interactive definition of the detector
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fDetectorMessenger = new DetectorMessenger(this);
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}
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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DetectorConstruction::~DetectorConstruction()
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{
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delete fDetectorMessenger;
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// delete fMonFieldSetup;
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}
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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G4VPhysicalVolume* DetectorConstruction::Construct()
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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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/**************************** World *****************************/
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G4Box * sWorld = new G4Box("world",
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fWorldSizeX / 2, fWorldSizeYZ / 2, fWorldSizeYZ / 2);
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G4LogicalVolume * lWorld = new G4LogicalVolume(sWorld,
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fWorldMaterial,
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"world");
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G4VPhysicalVolume * pWorld = new G4PVPlacement(0, //no rotation
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G4ThreeVector(), //at (0,0,0)
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lWorld, //logical volume
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"world", //name
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0, //mother volume
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false, //no boolean operation
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0); //copy number
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/************************** Absorber ***************************/
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G4Box * sAbsor = new G4Box("Absorber",
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fAbsorSizeX / 2, fAbsorSizeYZ / 2, fAbsorSizeYZ / 2);
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fLogAbsor = new G4LogicalVolume(sAbsor,
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fAbsorMaterial,
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"Absorber");
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new G4PVPlacement(0, //no rotation
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G4ThreeVector(), //at (0,0,0)
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fLogAbsor, //logical volume
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"Absorber", //name
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lWorld, //mother volume
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false, //no boolean operation
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0); //copy number
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fLogAbsor->SetUserLimits(new G4UserLimits(fMaxStepSize));
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PrintParameters();
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/************ always return the World volume *****************/
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return pWorld;
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}
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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void DetectorConstruction::PrintParameters()
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{
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G4cout << "\n---------------------------------------------------------\n";
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G4cout << "---> The Absorber is " << G4BestUnit(fAbsorSizeX, "Length")
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<< " of " << fAbsorMaterial->GetName() << G4endl;
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G4cout << "\n---------------------------------------------------------\n";
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}
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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void DetectorConstruction::SetSizeX(G4double value)
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{
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if(value > 0.0) {
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fAbsorSizeX = value;
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fWorldSizeX = 1.2 * fAbsorSizeX;
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G4RunManager::GetRunManager()->GeometryHasBeenModified();
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}
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}
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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void DetectorConstruction::SetSizeYZ(G4double value)
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{
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if(value > 0.0) {
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fAbsorSizeYZ = value;
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fWorldSizeYZ = 1.2 * fAbsorSizeYZ;
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G4RunManager::GetRunManager()->GeometryHasBeenModified();
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}
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}
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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void DetectorConstruction::SetMaterial(const G4String& namemat)
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{
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// search the material by its name
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G4Material* mat = G4NistManager::Instance()->FindOrBuildMaterial(namemat);
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if(!mat) {
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G4cout << "!!! DetectorConstruction::SetMaterial: WARNING Material <"
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<< namemat << "> does not exist in DB" << G4endl;
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return;
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}
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// new material is found out
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if (mat != fAbsorMaterial) {
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fAbsorMaterial = mat;
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if(fLogAbsor) { fLogAbsor->SetMaterial(mat); }
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G4RunManager::GetRunManager()->PhysicsHasBeenModified();
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}
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}
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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// void DetectorConstruction::SetMagField(G4double fieldValue)
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// {
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// fMonFieldSetup->SetMagField(fieldValue);
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// //apply a global uniform magnetic field along Z axis
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// G4FieldManager * fieldMgr =
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// G4TransportationManager::GetTransportationManager()->GetFieldManager();
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// if (fMagField) { delete fMagField; } //delete the existing magn field
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// if (fieldValue != 0.) // create a new one if non nul
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// {
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// fMagField = new G4UniformMagField(G4ThreeVector(0., 0., fieldValue));
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// fieldMgr->SetDetectorField(fMagField);
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// fieldMgr->CreateChordFinder(fMagField);
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// }
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// else
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// {
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// fMagField = 0;
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// fieldMgr->SetDetectorField(fMagField);
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// }
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// }
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.....
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void DetectorConstruction::ConstructSDandField()
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{
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// Define magnetic field
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bool bNewFieldValue = false;
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if ( fFieldMessenger.Get() != 0 ) {
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G4ThreeVector fieldSet = fFieldMessenger.Get()->GetFieldValue();
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if(fieldSet.z()!=fZMagFieldValue) bNewFieldValue = true;
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}
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else bNewFieldValue = true;
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// Monopole particule specific magnetic field
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if(bNewFieldValue&&fZMagFieldValue!=0.)
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fMonFieldSetup->SetMagField(fZMagFieldValue, true);
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if ( bNewFieldValue ) {
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// Create global magnetic field messenger.
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// Uniform magnetic field is then created automatically if
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// the field value is not zero.
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if(fZMagFieldValue!=0.)
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{
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G4ThreeVector fieldValue = G4ThreeVector(0.,0.,fZMagFieldValue);
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G4GlobalMagFieldMessenger* msg =
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new G4GlobalMagFieldMessenger(fieldValue);
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msg->SetVerboseLevel(1);
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G4AutoDelete::Register(msg);
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fFieldMessenger.Put( msg );
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}
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}
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}
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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void DetectorConstruction::SetMaxStepSize(G4double step)
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{
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fMaxStepSize = step;
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if(fLogAbsor) { fLogAbsor->SetUserLimits(new G4UserLimits(fMaxStepSize)); }
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}
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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void DetectorConstruction::UpdateGeometry()
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{
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G4RunManager::GetRunManager()->ReinitializeGeometry();
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}
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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