Gabriele Cosmo
188 lines
6.7 KiB
C++
188 lines
6.7 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. *
|
|
// ********************************************************************
|
|
//
|
|
/// \file exoticphysics/dmparticle/src/DetectorConstruction.cc
|
|
/// \brief Implementation of the DetectorConstruction class
|
|
//
|
|
//
|
|
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
|
|
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
|
|
|
|
#include "DetectorConstruction.hh"
|
|
#include "DetectorMessenger.hh"
|
|
|
|
#include "G4Material.hh"
|
|
#include "G4Box.hh"
|
|
#include "G4LogicalVolume.hh"
|
|
#include "G4PVPlacement.hh"
|
|
#include "TargetSD.hh"
|
|
#include "G4SDManager.hh"
|
|
|
|
#include "G4GeometryManager.hh"
|
|
|
|
#include "G4UnitsTable.hh"
|
|
#include "G4NistManager.hh"
|
|
|
|
#include "G4FieldManager.hh"
|
|
#include "G4ThreeVector.hh"
|
|
#include "G4RunManager.hh"
|
|
#include "G4SystemOfUnits.hh"
|
|
|
|
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
|
|
|
|
DetectorConstruction::DetectorConstruction()
|
|
: G4VUserDetectorConstruction(),
|
|
fAbsorMaterial(nullptr),
|
|
fLogAbsor(nullptr),
|
|
fWorld(nullptr)
|
|
{
|
|
// default parameter values
|
|
fAbsorSizeZ = fAbsorSizeXY = 10 * cm;
|
|
fWorldSizeZ = fWorldSizeXY = 1.2 * fAbsorSizeZ;
|
|
|
|
SetMaterial("G4_Al");
|
|
fWorldMaterial =
|
|
G4NistManager::Instance()->FindOrBuildMaterial("G4_Galactic");
|
|
|
|
// create commands for interactive definition of the detector
|
|
fDetectorMessenger = new DetectorMessenger(this);
|
|
}
|
|
|
|
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
|
|
|
|
DetectorConstruction::~DetectorConstruction()
|
|
{
|
|
delete fDetectorMessenger;
|
|
}
|
|
|
|
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
|
|
|
|
G4VPhysicalVolume* DetectorConstruction::Construct()
|
|
{
|
|
if(fWorld) { return fWorld; }
|
|
|
|
/**************************** World *****************************/
|
|
G4Box * sWorld = new G4Box("world",
|
|
fWorldSizeXY / 2, fWorldSizeXY / 2, fWorldSizeZ / 2);
|
|
|
|
G4LogicalVolume * lWorld = new G4LogicalVolume(sWorld,
|
|
fWorldMaterial,
|
|
"world");
|
|
|
|
fWorld = new G4PVPlacement(0, //no rotation
|
|
G4ThreeVector(), //at (0,0,0)
|
|
lWorld, //logical volume
|
|
"world", //name
|
|
0, //mother volume
|
|
false, //no boolean operation
|
|
0); //copy number
|
|
|
|
|
|
/************************** Absorber ***************************/
|
|
|
|
G4Box * sAbsor = new G4Box("Absorber",
|
|
fAbsorSizeXY / 2, fAbsorSizeXY / 2, fAbsorSizeZ / 2);
|
|
|
|
fLogAbsor = new G4LogicalVolume(sAbsor,
|
|
fAbsorMaterial,
|
|
"Absorber");
|
|
|
|
new G4PVPlacement(0, //no rotation
|
|
G4ThreeVector(), //at (0,0,0)
|
|
fLogAbsor, //logical volume
|
|
"Absorber", //name
|
|
lWorld, //mother volume
|
|
false, //no boolean operation
|
|
0); //copy number
|
|
|
|
PrintParameters();
|
|
|
|
/************ always return the World volume *****************/
|
|
return fWorld;
|
|
}
|
|
|
|
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
|
|
|
|
void DetectorConstruction::PrintParameters()
|
|
{
|
|
G4cout << "\n---------------------------------------------------------\n";
|
|
G4cout << "---> The Absorber is " << G4BestUnit(fAbsorSizeZ, "Length")
|
|
<< " of " << fAbsorMaterial->GetName() << G4endl;
|
|
G4cout << "\n---------------------------------------------------------\n";
|
|
|
|
}
|
|
|
|
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
|
|
|
|
void DetectorConstruction::SetSizeZ(G4double value)
|
|
{
|
|
if(value > 0.0) {
|
|
fAbsorSizeZ = value;
|
|
fWorldSizeZ = 1.2 * fAbsorSizeZ;
|
|
}
|
|
}
|
|
|
|
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
|
|
|
|
void DetectorConstruction::SetSizeXY(G4double value)
|
|
{
|
|
if(value > 0.0)
|
|
{
|
|
fAbsorSizeXY = value;
|
|
fWorldSizeXY = 1.2 * fAbsorSizeXY;
|
|
}
|
|
}
|
|
|
|
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
|
|
|
|
void DetectorConstruction::SetMaterial(const G4String& namemat)
|
|
{
|
|
// search the material by its name
|
|
|
|
G4Material* mat = G4NistManager::Instance()->FindOrBuildMaterial(namemat);
|
|
if(!mat) {
|
|
G4cout << "!!! DetectorConstruction::SetMaterial: WARNING Material <"
|
|
<< namemat << "> does not exist in DB" << G4endl;
|
|
return;
|
|
}
|
|
// new material is found out
|
|
if (mat != fAbsorMaterial) {
|
|
fAbsorMaterial = mat;
|
|
if(fLogAbsor) { fLogAbsor->SetMaterial(mat); }
|
|
G4RunManager::GetRunManager()->PhysicsHasBeenModified();
|
|
}
|
|
}
|
|
|
|
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
|
|
|
|
void DetectorConstruction::ConstructSDandField()
|
|
{
|
|
auto sd = new TargetSD("Target");
|
|
G4SDManager::GetSDMpointer()->AddNewDetector(sd);
|
|
SetSensitiveDetector(fLogAbsor, sd);
|
|
}
|
|
|
|
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
|