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geant4/examples/extended/electromagnetic/TestEm4/src/DetectorConstruction.cc
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2018-12-07 15:15:39 +01:00

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//
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//
/// \file electromagnetic/TestEm4/src/DetectorConstruction.cc
/// \brief Implementation of the DetectorConstruction class
//
//
//
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#include "DetectorConstruction.hh"
#include "G4Material.hh"
#include "G4Tubs.hh"
#include "G4LogicalVolume.hh"
#include "G4PVPlacement.hh"
#include "G4SystemOfUnits.hh"
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DetectorConstruction::DetectorConstruction()
:G4VUserDetectorConstruction()
{}
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DetectorConstruction::~DetectorConstruction()
{}
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G4VPhysicalVolume* DetectorConstruction::Construct()
{
//
// define a material from its elements. case 1: chemical molecule
//
G4double a, z;
G4double density;
G4int ncomponents, natoms;
G4Element* C = new G4Element("Carbon" ,"C" , z= 6., a= 12.01*g/mole);
G4Element* F = new G4Element("Fluorine","N" , z= 9., a= 18.99*g/mole);
G4Material* C6F6 =
new G4Material("FluorCarbonate", density= 1.61*g/cm3, ncomponents=2);
C6F6->AddElement(C, natoms=6);
C6F6->AddElement(F, natoms=6);
G4cout << C6F6 << G4endl;
//
// Container
//
G4double Rmin=0., Rmax=5*cm, deltaZ= 5*cm, Phimin=0., deltaPhi=360*degree;
G4Tubs*
solidWorld = new G4Tubs("C6F6", //its name
Rmin,Rmax,deltaZ,Phimin,deltaPhi); //its size
G4LogicalVolume*
logicWorld = new G4LogicalVolume(solidWorld, //its solid
C6F6, //its material
"C6F6"); //its name
G4VPhysicalVolume*
physiWorld = new G4PVPlacement(0, //no rotation
G4ThreeVector(), //at (0,0,0)
logicWorld, //its logical volume
"C6F6", //its name
0, //its mother volume
false, //no boolean operation
0); //copy number
//
//always return the physical World
//
return physiWorld;
}
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