//! 2D full projective SPACAL
double
CEmc_2DProjectiveSpacal(PHG4Reco* g4Reco, double radius, const int crossings,
const int absorberactive = 0)
{
double emc_inner_radius = 95.; // emc inner radius from engineering drawing
double cemcthickness = 21.00000 - no_overlapp;
double emc_outer_radius = emc_inner_radius + cemcthickness; // outer radius
if (radius > emc_inner_radius)
{
cout << "inconsistency: preshower radius+thickness: " << radius
<< " larger than emc inner radius: " << emc_inner_radius << endl;
gSystem->Exit(-1);
}
//---------------
// Load libraries
//---------------
gSystem->Load("libg4detectors.so");
// the radii are only to determined the thickness of the cemc
radius = emc_inner_radius;
//---------------
// Load libraries
//---------------
// 1.5cm thick teflon as an approximation for EMCAl light collection + electronics (10% X0 total estimated)
PHG4CylinderSubsystem *cyl = new PHG4CylinderSubsystem("CEMC_ELECTRONICS", 0);
cyl->set_double_param("radius",radius);
cyl->set_string_param("material","G4_TEFLON");
cyl->set_double_param("thickness",1.5- no_overlapp);
cyl->SuperDetector("CEMC_ELECTRONICS");
cyl->OverlapCheck(overlapcheck);
if (absorberactive) cyl->SetActive();
g4Reco->registerSubsystem( cyl );
radius += 1.5;
cemcthickness -= 1.5+no_overlapp;
// 0.5cm thick Stainless Steel as an approximation for EMCAl support system
cyl = new PHG4CylinderSubsystem("CEMC_SPT", 0);
cyl->SuperDetector("CEMC_SPT");
cyl->set_double_param("radius",radius +cemcthickness - 0.5 );
cyl->set_string_param("material","SS310"); // SS310 Stainless Steel
cyl->set_double_param("thickness",0.5 - no_overlapp);
cyl->OverlapCheck(overlapcheck);
if (absorberactive)
cyl->SetActive();
g4Reco->registerSubsystem(cyl);
cemcthickness -= 0.5+no_overlapp;
//---------------
// Load libraries
//---------------
int ilayer = Min_cemc_layer;
PHG4SpacalSubsystem *cemc;
cemc = new PHG4SpacalSubsystem("CEMC", ilayer);
cemc->get_geom().set_config(
PHG4CylinderGeom_Spacalv1::kFullProjective_2DTaper_SameLengthFiberPerTower);
// load from hard code map for now. Need to move to calibration file or database.
cemc->get_geom().load_demo_sector_tower_map3();
cemc->get_geom().set_radius(radius);
cemc->get_geom().set_thickness(cemcthickness);
cemc->get_geom().set_construction_verbose(1);
cemc->SetActive();
cemc->SuperDetector("CEMC");
if (absorberactive)
cemc->SetAbsorberActive();
cemc->OverlapCheck(overlapcheck);
g4Reco->registerSubsystem(cemc);
if (ilayer > Max_cemc_layer)
{
cout << "layer discrepancy, current layer " << ilayer
<< " max cemc layer: " << Max_cemc_layer << endl;
}
radius += cemcthickness;
radius += no_overlapp;
return radius;
}
int G4Setup(const int absorberactive = 0,
const string &field ="1.5",
const EDecayType decayType = TPythia6Decayer::kAll,
const bool do_svtx = true,
const bool do_preshower = false,
const bool do_cemc = true,
const bool do_hcalin = true,
const bool do_magnet = true,
const bool do_hcalout = true,
const bool do_pipe = true,
const bool do_bbc = true,
const bool do_FEMC = false,
const bool do_FHCAL = false,
const float magfield_rescale = 1.0) {
//---------------
// Load libraries
//---------------
gSystem->Load("libg4detectors.so");
gSystem->Load("libg4testbench.so");
//---------------
// Fun4All server
//---------------
Fun4AllServer *se = Fun4AllServer::instance();
PHG4Reco* g4Reco = new PHG4Reco();
g4Reco->set_rapidity_coverage(1.1); // according to drawings
if (decayType != TPythia6Decayer::kAll) {
g4Reco->set_force_decay(decayType);
}
double fieldstrength;
istringstream stringline(field);
stringline >> fieldstrength;
if (stringline.fail()) { // conversion to double fails -> we have a string
if (field.find("sPHENIX.root") != string::npos) {
g4Reco->set_field_map(field, 1);
} else {
g4Reco->set_field_map(field, 2);
}
} else {
g4Reco->set_field(fieldstrength); // use const soleniodal field
}
g4Reco->set_field_rescale(magfield_rescale);
double radius = 0.;
//----------------------------------------
// PIPE
if (do_pipe) radius = Pipe(g4Reco, radius, absorberactive);
//----------------------------------------
// SVTX
if (do_svtx) radius = Svtx(g4Reco, radius, absorberactive);
//----------------------------------------
// PRESHOWER
if (do_preshower) radius = PreShower(g4Reco, radius, absorberactive);
//----------------------------------------
// CEMC
//
if (do_cemc) radius = CEmc(g4Reco, radius, 8, absorberactive);
// if (do_cemc) radius = CEmc_Vis(g4Reco, radius, 8, absorberactive);// for visualization substructure of SPACAL, slow to render
//----------------------------------------
// HCALIN
if (do_hcalin) radius = HCalInner(g4Reco, radius, 4, absorberactive);
//----------------------------------------
// MAGNET
if (do_magnet) radius = Magnet(g4Reco, radius, 0, absorberactive);
//----------------------------------------
// HCALOUT
if (do_hcalout) radius = HCalOuter(g4Reco, radius, 4, absorberactive);
//----------------------------------------
// FEMC
if ( do_FEMC )
FEMCSetup(g4Reco, absorberactive);
//----------------------------------------
// FHCAL
if ( do_FHCAL )
FHCALSetup(g4Reco, absorberactive);
// sPHENIX forward flux return(s)
PHG4CylinderSubsystem *flux_return_plus = new PHG4CylinderSubsystem("FWDFLUXRET", 0);
flux_return_plus->SetLength(10.2);
flux_return_plus->SetPosition(0,0,335.9);
flux_return_plus->SetRadius(5.0);
flux_return_plus->SetLengthViaRapidityCoverage(false);
flux_return_plus->SetThickness(263.5-5.0);
flux_return_plus->SetMaterial("G4_Fe");
flux_return_plus->SetActive(false);
flux_return_plus->SuperDetector("FLUXRET_ETA_PLUS");
flux_return_plus->OverlapCheck(overlapcheck);
g4Reco->registerSubsystem(flux_return_plus);
PHG4CylinderSubsystem *flux_return_minus = new PHG4CylinderSubsystem("FWDFLUXRET", 0);
flux_return_minus->SetLength(10.2);
flux_return_minus->SetPosition(0,0,-335.9);
flux_return_minus->SetRadius(5.0);
flux_return_minus->SetLengthViaRapidityCoverage(false);
flux_return_minus->SetThickness(263.5-5.0);
flux_return_minus->SetMaterial("G4_Fe");
flux_return_minus->SetActive(false);
flux_return_minus->SuperDetector("FLUXRET_ETA_MINUS");
flux_return_minus->OverlapCheck(overlapcheck);
g4Reco->registerSubsystem(flux_return_minus);
//----------------------------------------
// BLACKHOLE
// swallow all particles coming out of the backend of sPHENIX
PHG4CylinderSubsystem *blackhole = new PHG4CylinderSubsystem("BH", 1);
blackhole->SetRadius(radius + 10); // add 10 cm
blackhole->SetLengthViaRapidityCoverage(false);
blackhole->SetLength(g4Reco->GetWorldSizeZ() - no_overlapp); // make it cover the world in length
blackhole->BlackHole();
blackhole->SetThickness(0.1); // it needs some thickness
blackhole->SetActive(); // always see what leaks out
blackhole->OverlapCheck(overlapcheck);
g4Reco->registerSubsystem(blackhole);
//----------------------------------------
// FORWARD BLACKHOLEs
// +Z
blackhole = new PHG4CylinderSubsystem("BH_FORWARD_PLUS", 1);
blackhole->SuperDetector("BH_FORWARD_PLUS");
blackhole->SetRadius(0); // add 10 cm
blackhole->SetLengthViaRapidityCoverage(false);
blackhole->SetLength(0.1); // make it cover the world in length
blackhole->SetPosition(0,0, g4Reco->GetWorldSizeZ()/2. - 0.1 - no_overlapp);
blackhole->BlackHole();
blackhole->SetThickness(radius - no_overlapp); // it needs some thickness
blackhole->SetActive(); // always see what leaks out
blackhole->OverlapCheck(overlapcheck);
g4Reco->registerSubsystem(blackhole);
blackhole = new PHG4CylinderSubsystem("BH_FORWARD_NEG", 1);
blackhole->SuperDetector("BH_FORWARD_NEG");
blackhole->SetRadius(0); // add 10 cm
blackhole->SetLengthViaRapidityCoverage(false);
blackhole->SetLength(0.1); // make it cover the world in length
blackhole->SetPosition(0,0, - g4Reco->GetWorldSizeZ()/2. +0.1 + no_overlapp);
blackhole->BlackHole();
blackhole->SetThickness(radius - no_overlapp); // it needs some thickness
blackhole->SetActive(); // always see what leaks out
blackhole->OverlapCheck(overlapcheck);
g4Reco->registerSubsystem(blackhole);
PHG4TruthSubsystem *truth = new PHG4TruthSubsystem();
g4Reco->registerSubsystem(truth);
se->registerSubsystem( g4Reco );
}
//! Jin Huang <*****@*****.**> : Fully tuned for ePHENIX LOI setup
void
G4Setup(const int absorberactive = 0, const float field = -1.)
{
//---------------
// Load libraries
//---------------
gSystem->Load("libg4detectors.so");
gSystem->Load("libg4testbench.so");
//---------------
// Fun4All server
//---------------
Fun4AllServer *se = Fun4AllServer::instance();
PHG4Reco* g4Reco = new PHG4Reco();
g4Reco->set_rapidity_coverage(1.1); // temperary value assigned by ePHENIX LOI
if (field < 0)
{
const char * map =
"/direct/phenix+WWW/p/draft/jinhuang/sPHENIX/ePHENIX/BABAR_V11_GridOut_ePHENIX.SF7.root";
cout << "G4Setup - Using ePHENIX LOI field map ";
cout << map;
cout << endl;
g4Reco->set_field_map(map, 2);
}
else
{
g4Reco->set_field(field); // use const soleniodal field
}
/////////////////////////////////////////////////
// Beam Pipe
/////////////////////////////////////////////////
PHG4CylinderSubsystem *beamcyl;
beamcyl = new PHG4CylinderSubsystem("BEAMPIPE", 1);
beamcyl->SetRadius(2.0);
beamcyl->SetThickness(0.1);
beamcyl->SetLengthViaRapidityCoverage(false);
beamcyl->SetLength(g4Reco->GetWorldSizeZ() - 10.); //g4Reco->GetWorldSizeZ()); // go through our entire world in z directions
beamcyl->SetMaterial("G4_Be");
// beamcyl->SetPosition(0, 0, 250);
// if (absorberactive) beamcyl->SetActive();
beamcyl->OverlapCheck(overlapcheck);
g4Reco->registerSubsystem(beamcyl);
/////////////////////////////////////////////////
// Central magnet and detectors
/////////////////////////////////////////////////
PHG4CylinderSubsystem *cyl;
double magnet_inner_radius = 140;
double magnet_outer_radius = 173;
double magnet_thickness = magnet_outer_radius - magnet_inner_radius;
double emc_inner_radius = 95.; // emc inner radius from engineering spreadsheet
double hcal_in_inner_radius = magnet_outer_radius + 15.; // inner hcal inner radius from engineering spreadsheet
double hcal_out_inner_radius = hcal_in_inner_radius + 30.; // inner hcal inner radius from engineering spreadsheet
double preshower_inner_radius = 90.;
double tpc_inner_radius = 15.;
double tpc_outer_radius = 80.;
double tpc_thickness = tpc_outer_radius - tpc_inner_radius;
int ilayer = -1; // just to declare this varialbe outside of detector setups
double radius = tpc_inner_radius;
radius = Tpc(g4Reco, radius, tpc_thickness, absorberactive);
//
radius = G4_DIRC(g4Reco);
if (radius > emc_inner_radius - 4.)
{
cout << "inconsistency: " << radius << " larger than emc inner radius: "
<< emc_inner_radius - 4. << endl;
gSystem->Exit(-1);
}
// inside CEmc now...
//radius = emc_inner_radius - 4.;
//cyl = new PHG4CylinderSubsystem("EMCELECTRONICS", 0);
//cyl->SetRadius(radius);
//cyl->SetMaterial("G4_TEFLON"); // plastic
//cyl->SetThickness(0.5);
//if (absorberactive)
// cyl->SetActive();
//cyl->OverlapCheck(overlapcheck);
//g4Reco->registerSubsystem(cyl);
radius = emc_inner_radius;
int ncross = 4;
radius = CEmc(g4Reco, radius, ncross, absorberactive);
double saveradius = radius + no_overlapp;
// double al_radlen = 8.897;
// radius = magnet_inner_radius + magnet_thickness/2. - al_radlen/2.;
// magnet (1 radlen Al = 8.897cm - pdg)
// located half way between inner and outer radius
radius = magnet_inner_radius;
cyl = new PHG4CylinderSubsystem("MAGNET", 0);
cyl->SetRadius(radius);
cyl->SetLengthViaRapidityCoverage(false);
cyl->SetLength(385.0);
cyl->SetMaterial("AL_BABAR_MAG"); // use 1 radiation length Al for magnet thickness
cyl->SetThickness(magnet_thickness);
cyl->OverlapCheck(overlapcheck);
if (absorberactive)
cyl->SetActive();
g4Reco->registerSubsystem(cyl);
// radius = magnet_inner_radius + magnet_thickness; // outside of magnet
//
// radius += 10;
// if (radius > hcal_in_inner_radius)
// {
// cout << "inconsistency: magnet radius+thickness: " << radius
// << " larger than emc inner radius: " << hcal_in_inner_radius << endl;
// gSystem->Exit(-1);
// }
// radius = hcal_in_inner_radius;
// ncross = 3;
// radius = HCal(g4Reco, radius, ncross, absorberactive);
//radius += 60;
cout <<"G4Setup - loading updated HCal setup"<<endl;
ncross = 4;
radius = HCal(g4Reco, saveradius, ncross, absorberactive);
/////////////////////////////////////////////////
// Build hadron going detectors
/////////////////////////////////////////////////
// tracker
G4_FGEM_ePHENIX(g4Reco, N_forward_sector, Min_forward_eta);
// RICH
G4_RICH(g4Reco, N_forward_sector, Min_forward_eta_RICH);
//AeroGel
G4_AeroGel(g4Reco, N_forward_sector, Min_forward_eta);
// ECal
G4_FEmc(g4Reco); // 17cm thick Pb/Sci calorimeter = 20 X0
// HCal
G4_FHCal(g4Reco); // ForwardHcal detector Geant4 module
PHG4ConeSubsystem *bbc = new PHG4ConeSubsystem("BBC", 0);
bbc->SetZlength(2);
bbc->SetPlaceZ(325);
bbc->Set_eta_range(4, 5);
bbc->SetMaterial("G4_Pyrex_Glass");
bbc->SetActive();
bbc->SuperDetector("BBC");
bbc->OverlapCheck(overlapcheck);
g4Reco->registerSubsystem(bbc);
/////////////////////////////////////////////////
// electron going detectors
/////////////////////////////////////////////////
G4_EEmc( g4Reco ); // 18cm thick PbWO4 crystal calorimeter
G4_eGEM_ePHENIX(g4Reco);
PHG4TruthSubsystem *truth = new PHG4TruthSubsystem();
g4Reco->registerSubsystem(truth);
se->registerSubsystem(g4Reco);
}
int G4Setup(const int absorberactive = 0,
const string &field ="1.5",
#if ROOT_VERSION_CODE >= ROOT_VERSION(6,00,0)
const EDecayType decayType = EDecayType::kAll,
#else
const EDecayType decayType = TPythia6Decayer::kAll,
#endif
const bool do_tracking = true,
const bool do_pstof = true,
const bool do_cemc = true,
const bool do_hcalin = true,
const bool do_magnet = true,
const bool do_hcalout = true,
const bool do_pipe = true,
const bool do_plugdoor = false,
// const bool do_plugdoor = true,
const float magfield_rescale = 1.0) {
//---------------
// Load libraries
//---------------
gSystem->Load("libg4detectors.so");
gSystem->Load("libg4testbench.so");
//---------------
// Fun4All server
//---------------
Fun4AllServer *se = Fun4AllServer::instance();
// read-in HepMC events to Geant4 if there is any
HepMCNodeReader *hr = new HepMCNodeReader();
se->registerSubsystem(hr);
PHG4Reco* g4Reco = new PHG4Reco();
g4Reco->set_rapidity_coverage(1.1); // according to drawings
// uncomment to set QGSP_BERT_HP physics list for productions
// (default is QGSP_BERT for speed)
// g4Reco->SetPhysicsList("QGSP_BERT_HP");
#if ROOT_VERSION_CODE >= ROOT_VERSION(6,00,0)
if (decayType != EDecayType::kAll)
#else
if (decayType != TPythia6Decayer::kAll)
#endif
{
g4Reco->set_force_decay(decayType);
}
double fieldstrength;
istringstream stringline(field);
stringline >> fieldstrength;
if (stringline.fail()) { // conversion to double fails -> we have a string
if (field.find("sPHENIX.root") != string::npos) {
g4Reco->set_field_map(field, PHFieldConfig::Field3DCartesian);
} else {
g4Reco->set_field_map(field, PHFieldConfig::kField2D);
}
} else {
g4Reco->set_field(fieldstrength); // use const soleniodal field
}
g4Reco->set_field_rescale(magfield_rescale);
double radius = 0.;
//----------------------------------------
// PIPE
if (do_pipe) radius = Pipe(g4Reco, radius, absorberactive);
//----------------------------------------
// TRACKING
if (do_tracking) radius = Tracking(g4Reco, radius, absorberactive);
//----------------------------------------
// PSTOF
if (do_pstof) radius = PSTOF(g4Reco, radius, absorberactive);
//----------------------------------------
// CEMC
//
if (do_cemc) radius = CEmc(g4Reco, radius, 8, absorberactive);
// if (do_cemc) radius = CEmc_Vis(g4Reco, radius, 8, absorberactive);// for visualization substructure of SPACAL, slow to render
//----------------------------------------
// HCALIN
if (do_hcalin) radius = HCalInner(g4Reco, radius, 4, absorberactive);
//----------------------------------------
// MAGNET
if (do_magnet) radius = Magnet(g4Reco, radius, 0, absorberactive);
//----------------------------------------
// HCALOUT
if (do_hcalout) radius = HCalOuter(g4Reco, radius, 4, absorberactive);
//----------------------------------------
// sPHENIX forward flux return door
if (do_plugdoor) PlugDoor(g4Reco, absorberactive);
//----------------------------------------
// BLACKHOLE
// swallow all particles coming out of the backend of sPHENIX
PHG4CylinderSubsystem *blackhole = new PHG4CylinderSubsystem("BH", 1);
blackhole->set_double_param("radius",radius + 10); // add 10 cm
blackhole->set_int_param("lengthviarapidity",0);
blackhole->set_double_param("length",g4Reco->GetWorldSizeZ() - no_overlapp); // make it cover the world in length
blackhole->BlackHole();
blackhole->set_double_param("thickness",0.1); // it needs some thickness
blackhole->SetActive(); // always see what leaks out
blackhole->OverlapCheck(overlapcheck);
g4Reco->registerSubsystem(blackhole);
//----------------------------------------
// FORWARD BLACKHOLEs
// +Z
blackhole = new PHG4CylinderSubsystem("BH_FORWARD_PLUS", 1);
blackhole->SuperDetector("BH_FORWARD_PLUS");
blackhole->set_double_param("radius",0); // add 10 cm
blackhole->set_int_param("lengthviarapidity",0);
blackhole->set_double_param("length",0.1); // make it cover the world in length
blackhole->set_double_param("place_z",g4Reco->GetWorldSizeZ()/2. - 0.1 - no_overlapp);
blackhole->BlackHole();
blackhole->set_double_param("thickness",radius - no_overlapp); // it needs some thickness
blackhole->SetActive(); // always see what leaks out
blackhole->OverlapCheck(overlapcheck);
g4Reco->registerSubsystem(blackhole);
blackhole = new PHG4CylinderSubsystem("BH_FORWARD_NEG", 1);
blackhole->SuperDetector("BH_FORWARD_NEG");
blackhole->set_double_param("radius",0); // add 10 cm
blackhole->set_int_param("lengthviarapidity",0);
blackhole->set_double_param("length",0.1); // make it cover the world in length
blackhole->set_double_param("place_z", - g4Reco->GetWorldSizeZ()/2. +0.1 + no_overlapp);
blackhole->BlackHole();
blackhole->set_double_param("thickness",radius - no_overlapp); // it needs some thickness
blackhole->SetActive(); // always see what leaks out
blackhole->OverlapCheck(overlapcheck);
g4Reco->registerSubsystem(blackhole);
PHG4TruthSubsystem *truth = new PHG4TruthSubsystem();
g4Reco->registerSubsystem(truth);
se->registerSubsystem( g4Reco );
return 0;
}
//! Babar DIRC (Without most of support structure)
//! Ref: I. Adam et al. The DIRC particle identification system for the BaBar experiment.
//! Nucl. Instrum. Meth., A538:281-357, 2005. doi:10.1016/j.nima.2004.08.129.
double
DIRCSetup(PHG4Reco* g4Reco)
{
const double radiator_R = 83.65;
const double length = 470;
const double z_shift = -115;
const double z_start = z_shift + length / 2.;
const double z_end = z_shift - length / 2.;
PHG4SectorSubsystem *dirc;
dirc = new PHG4SectorSubsystem("DIRC");
dirc->get_geometry().set_normal_polar_angle(3.14159265358979323846/2);
dirc->get_geometry().set_normal_start(
83.65 * PHG4Sector::Sector_Geometry::Unit_cm());
dirc->get_geometry().set_min_polar_angle(atan2(radiator_R, z_start));
dirc->get_geometry().set_max_polar_angle(atan2(radiator_R, z_end));
dirc->get_geometry().set_min_polar_edge(PHG4Sector::Sector_Geometry::FlatEdge());
dirc->get_geometry().set_max_polar_edge(PHG4Sector::Sector_Geometry::FlatEdge());
dirc->get_geometry().set_material("Quartz");
dirc->get_geometry().set_N_Sector(12);
dirc->OverlapCheck(overlapcheck);
dirc->get_geometry().AddLayer("Radiator", "Quartz",
1.7 * PHG4Sector::Sector_Geometry::Unit_cm(), true);
g4Reco->registerSubsystem(dirc);
PHG4CylinderSubsystem *cyl;
// The cylinder skins provide most of the strength
// and stiffness of the CST. The thickness of the inner
// and outer skins is 1.27 and 0.76 mm, respectively
// Inner skin:
cyl = new PHG4CylinderSubsystem("DIRC_CST_Inner_Skin", 10);
cyl->set_double_param("radius",81.71);
cyl->set_int_param("lengthviarapidity",0);
cyl->set_double_param("length",length);
cyl->set_string_param("material","G4_Al");
cyl->set_double_param("thickness",0.127);
cyl->set_double_param("place_x",0.);
cyl->set_double_param("place_y",0.);
cyl->set_double_param("place_z",z_shift);
cyl->SetActive(0);
cyl->SuperDetector("DIRC");
cyl->OverlapCheck(overlapcheck);
g4Reco->registerSubsystem(cyl);
// Outer skin:
cyl = new PHG4CylinderSubsystem("DIRC_CST_Outer_Skin", 11);
cyl->set_double_param("radius",89.25 - 0.076);
cyl->set_int_param("lengthviarapidity",0);
cyl->set_double_param("length",length);
cyl->set_string_param("material","G4_Al");
cyl->set_double_param("thickness",0.076);
cyl->set_double_param("place_x",0.);
cyl->set_double_param("place_y",0.);
cyl->set_double_param("place_z",z_shift);
cyl->SetActive(0);
cyl->SuperDetector("DIRC");
cyl->OverlapCheck(overlapcheck);
g4Reco->registerSubsystem(cyl);
// Done
return 89.25;
}
double
CEmc(PHG4Reco* g4Reco, double radius, const int crossings, const int absorberactive = 0)
{
if (radius > 100) {
cout << "inconsistency: radius: " << radius
<< " larger than ALICE CEMC inner radius: 100" << endl;
gSystem->Exit(-1);
}
radius = 100;
//---------------
// Load libraries
//---------------
gSystem->Load("libg4detectors.so");
gSystem->Load("libg4testbench.so");
double depth = 18*1.23; // 18 radlen, 1 radlen = 1.23 cm
double scintiwidth = 0.176;
double leadwidth = 0.144;
PHG4CylinderSubsystem *cemc;
for (int ilayer = Min_cemc_layer; ilayer <= Max_cemc_layer; ilayer++)
{
cemc = new PHG4CylinderSubsystem("ABSORBER_CEMC", ilayer);
cemc->SetRadius(radius);
cemc->SetMaterial("G4_Pb");
cemc->SetThickness(leadwidth);
cemc->SuperDetector("ABSORBER_CEMC");
if (absorberactive) cemc->SetActive();
cemc->OverlapCheck(overlapcheck);
g4Reco->registerSubsystem( cemc );
radius += leadwidth;
radius += no_overlapp;
cemc = new PHG4CylinderSubsystem("CEMC", ilayer);
cemc->SetRadius(radius);
cemc->SetMaterial("Scintillator");
cemc->SetThickness(scintiwidth);
cemc->SetActive();
cemc->SuperDetector("CEMC");
cemc->OverlapCheck(overlapcheck);
g4Reco->registerSubsystem( cemc );
radius += scintiwidth;
radius += no_overlapp;
}
PHG4CylinderSubsystem *cyl = new PHG4CylinderSubsystem("EMCELECTRONICS", 0);
cyl->SetRadius(radius);
cyl->SetMaterial("G4_TEFLON"); // plastic
cyl->SetThickness(0.5);
if (absorberactive) cyl->SetActive();
g4Reco->registerSubsystem( cyl );
radius += 0.5;
radius += no_overlapp;
return radius;
}
//! 2D full projective SPACAL
double
CEmc_2DProjectiveSpacal(PHG4Reco *g4Reco, double radius, const int crossings,
const int absorberactive = 0)
{
double emc_inner_radius = 92; // emc inner radius from engineering drawing
double cemcthickness = 24.00000 - no_overlapp;
//max radius is 116 cm;
double emc_outer_radius = emc_inner_radius + cemcthickness; // outer radius
assert(emc_outer_radius < 116);
if (radius > emc_inner_radius)
{
cout << "inconsistency: preshower radius+thickness: " << radius
<< " larger than emc inner radius: " << emc_inner_radius << endl;
gSystem->Exit(-1);
}
//---------------
// Load libraries
//---------------
gSystem->Load("libg4detectors.so");
// the radii are only to determined the thickness of the cemc
radius = emc_inner_radius;
//---------------
// Load libraries
//---------------
// 1.5cm thick teflon as an approximation for EMCAl light collection + electronics (10% X0 total estimated)
PHG4CylinderSubsystem *cyl = new PHG4CylinderSubsystem("CEMC_ELECTRONICS", 0);
cyl->set_double_param("radius", radius);
cyl->set_string_param("material", "G4_TEFLON");
cyl->set_double_param("thickness", 1.5 - no_overlapp);
cyl->SuperDetector("CEMC_ELECTRONICS");
cyl->OverlapCheck(overlapcheck);
if (absorberactive) cyl->SetActive();
g4Reco->registerSubsystem(cyl);
radius += 1.5;
cemcthickness -= 1.5 + no_overlapp;
// 0.5cm thick Stainless Steel as an approximation for EMCAl support system
cyl = new PHG4CylinderSubsystem("CEMC_SPT", 0);
cyl->SuperDetector("CEMC_SPT");
cyl->set_double_param("radius", radius + cemcthickness - 0.5);
cyl->set_string_param("material", "SS310"); // SS310 Stainless Steel
cyl->set_double_param("thickness", 0.5 - no_overlapp);
cyl->OverlapCheck(overlapcheck);
if (absorberactive)
cyl->SetActive();
g4Reco->registerSubsystem(cyl);
cemcthickness -= 0.5 + no_overlapp;
//---------------
// Load libraries
//---------------
int ilayer = 0;
PHG4SpacalSubsystem *cemc;
const bool use_2015_design = false;
if (use_2015_design)
{
cemc = new PHG4SpacalSubsystem("CEMC", ilayer);
cemc->set_int_param("config", PHG4CylinderGeom_Spacalv1::kFullProjective_2DTaper_SameLengthFiberPerTower);
cemc->set_double_param("radius", radius); // overwrite minimal radius
cemc->set_double_param("thickness", cemcthickness); // overwrite thickness
cemc->set_int_param("azimuthal_n_sec", 32);
// cemc->set_int_param("construction_verbose", 2);
cemc->SetActive();
cemc->SuperDetector("CEMC");
if (absorberactive)
cemc->SetAbsorberActive();
cemc->OverlapCheck(overlapcheck);
}
else
{
cemc = new PHG4SpacalSubsystem("CEMC", ilayer);
cemc->set_int_param("virualize_fiber", 0);
cemc->set_int_param("azimuthal_seg_visible", 1);
cemc->set_int_param("construction_verbose", 0);
cemc->Verbosity(0);
cemc->UseCalibFiles(PHG4DetectorSubsystem::xml);
cemc->SetCalibrationFileDir(string(getenv("CALIBRATIONROOT")) + string("/CEMC/Geometry_2017ProjTilted/"));
cemc->set_double_param("radius", radius); // overwrite minimal radius
cemc->set_double_param("thickness", cemcthickness); // overwrite thickness
cemc->SetActive();
cemc->SuperDetector("CEMC");
if (absorberactive)
cemc->SetAbsorberActive();
cemc->OverlapCheck(overlapcheck);
}
g4Reco->registerSubsystem(cemc);
if (ilayer > Max_cemc_layer)
{
cout << "layer discrepancy, current layer " << ilayer
<< " max cemc layer: " << Max_cemc_layer << endl;
}
radius += cemcthickness;
radius += no_overlapp;
return radius;
}
