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#include <G4NistManager.hh>
#include <G4Material.hh>
#include <G4LogicalVolume.hh>
#include <G4PVPlacement.hh>
#include <G4Box.hh>
#include <G4VisAttributes.hh>
#include <G4UserLimits.hh>
#include "G4BeamTestDetectorConstruction.h"
#include "G4BeamTestTank.h"
G4BeamTestDetectorConstruction::G4BeamTestDetectorConstruction():
origin_(NAN, NAN, NAN), verboseLevel_(0)/* , tankList_(0) */
{
}
G4BeamTestDetectorConstruction::~G4BeamTestDetectorConstruction()
{
}
G4VPhysicalVolume* G4BeamTestDetectorConstruction::Construct()
{
/* if(tankList_.empty()) return NULL; */
CreateMaterials();
/* // World origin in IceCube coordinates */
/* origin_.set(delaunay.GetOrigin().x(), delaunay.GetOrigin().y(), zSnowBottom + zHalfLength); */
// Determine World dimensions
G4double xWorld = 20.0 * CLHEP::m;
G4double yWorld = 20.0 * CLHEP::m;
G4double zWorld = 20.0 * CLHEP::m;
// Create world volume
G4Box* world_box = new G4Box("solid_world", xWorld, yWorld, zWorld);
G4LogicalVolume* worldLog =
new G4LogicalVolume(world_box, G4Material::GetMaterial("G4_AIR"), "log_world", 0, 0, 0);
G4VPhysicalVolume* worldPhys =
new G4PVPlacement(0, G4ThreeVector(), worldLog, "world", 0, false, 0);
/* // Instantiation of a set of visualization attributes with cyan colour */
/* G4VisAttributes * snowVisAtt = new G4VisAttributes(G4Colour(0., 1., 1.)); */
/* // Assignment of the visualization attributes to the logical volume */
/* snowLog->SetVisAttributes(snowVisAtt); */
// Install tank
/* BOOST_FOREACH(G4BeamTestTank* tank, tankList_) */
/* { */
tank_->InstallTank(worldPhys, origin_);
// }
// User limits (energy cutoffs)
// Do not create photons or electrons below cherenkov threshold
// See also corresponding UserSpecialCuts in Physicslist !!!!
G4UserLimits* energyLimit = new G4UserLimits();
energyLimit->SetUserMinEkine(280.0 * CLHEP::keV); // Cherenkov threshold of electrons in ice TODO(shivesh)
worldLog->SetUserLimits(energyLimit);
/* snowLog->SetUserLimits(energyLimit); */
return worldPhys;
}
/*****************************************************************/
void G4BeamTestDetectorConstruction::CreateMaterials()
{
CreateAir();
/* CreateIce(); */
/* CreateSnow(); */
CreateWater();
CreatePlastic();
/* CreatePerlite(); */
CreateGlassSphere();
CreateEffectiveDOMMaterial();
//if(verboseLevel_>0) G4cout << *G4Material::GetMaterialTable() << G4endl;
}
/*****************************************************************/
void G4BeamTestDetectorConstruction::CreateAir()
{
G4NistManager* nistManager = G4NistManager::Instance();
nistManager->ConstructNewGasMaterial("Air","G4_AIR" , (273.15 + 20.0)*CLHEP::kelvin, 1.0*CLHEP::atmosphere);
}
/*****************************************************************/
void G4BeamTestDetectorConstruction::CreateWater()
{
G4NistManager* nistManager = G4NistManager::Instance();
G4Material* water = new G4Material("Water", 1.0 * CLHEP::g / CLHEP::cm3, 2, kStateLiquid);
water->AddElement(nistManager->FindOrBuildElement("H"), 2);
water->AddElement(nistManager->FindOrBuildElement("O"), 1);
// pmt spectral response 300-650nm
// https://docushare.icecube.wisc.edu/dsweb/Get/Document-6637/R7081-02%20data%20sheet.pdf<Paste>
// TODO(shivesh): add more properties?
const G4int water_bins = 2;
G4double water_ephot[water_bins] = {1.91 * CLHEP::eV, 4.13 * CLHEP::eV};
G4double water_refr[water_bins] = {1.33, 1.33};
G4MaterialPropertiesTable *mpt_water = new G4MaterialPropertiesTable ();
mpt_water->AddProperty ("RINDEX", water_ephot, water_refr, water_bins);
water->SetMaterialPropertiesTable(mpt_water);
}
/*****************************************************************/
void G4BeamTestDetectorConstruction::CreatePlastic()
{
G4NistManager* nistManager = G4NistManager::Instance();
/*
G4Material* plastic = new G4Material("Plastic", 1.5 * CLHEP::g / CLHEP::cm3, 3, kStateSolid);
plastic->AddElement(nistManager->FindOrBuildElement("H"), 20);
plastic->AddElement(nistManager->FindOrBuildElement("C"), 10);
plastic->AddElement(nistManager->FindOrBuildElement("O"), 5);
*/
// POM
G4Material* plastic = new G4Material("Plastic", 1.425 * CLHEP::g / CLHEP::cm3, 3, kStateSolid);
plastic->AddElement(nistManager->FindOrBuildElement("H"), 2);
plastic->AddElement(nistManager->FindOrBuildElement("C"), 1);
plastic->AddElement(nistManager->FindOrBuildElement("O"), 1);
//nistManager->FindOrBuildMaterial("G4_POLYOXYMETHYLENE");
}
/*****************************************************************/
void G4BeamTestDetectorConstruction::CreateGlassSphere()
{
// Elemental composition not exact for detailed line-up look at
// docushare collection 690 -> XRF and ICP Analysis of Pressure Sphere Glass
// 20 lbs. weight = 9072 g
// 6.5" outer radius & 0.5" thickness = 4024 cm3
G4NistManager* nistManager = G4NistManager::Instance();
G4Material* glass = new G4Material("Glass", 2.254 * CLHEP::g / CLHEP::cm3, 2, kStateSolid);
glass->AddElement(nistManager->FindOrBuildElement("Si"), 1);
glass->AddElement(nistManager->FindOrBuildElement("O"), 2);
}
/*****************************************************************/
void G4BeamTestDetectorConstruction::CreateEffectiveDOMMaterial()
{
// Mass of the a complete DOM: 12050 g
// Mass without glass sphere: 2978 g
// 6" inner glass radius: volume = 14830 cm3
G4NistManager* nistManager = G4NistManager::Instance();
G4Material* glass = new G4Material("effectiveDOM", 0.2 * CLHEP::g / CLHEP::cm3, 2, kStateSolid);
glass->AddElement(nistManager->FindOrBuildElement("Si"), 1);
glass->AddElement(nistManager->FindOrBuildElement("O"), 2);
}
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