#include "TNode.h"
#include "TRandom.h"
#include "TGeometry.h"
+#include "TVirtualMC.h"
// --- Standard library ---
#include "AliEMCALGeometry.h"
#include "AliConst.h"
#include "AliRun.h"
-#include "AliMC.h"
ClassImp(AliEMCALv0)
//______________________________________________________________________
void AliEMCALv0::CreateGeometry()
{
- // Create the EMCAL geometry for Geant
-
+ // Create the EMCAL geometry for Geant
+ // Geometry of a tower
+ //|-----------------------------------------------------| XEN1
+ //| | | |
+ //| | Al thickness = GetAlFrontThickness() | |
+ //| | | |
+ //| | | |
+ //| | | |
+ //| ------------------------------------------------- |
+ //| | Air Gap = GetGap2Active() | |
+ //| | | |
+ //| ------------------------------------------------- |
+ //| | XU0 : XPST (PreShower e = GetPRScintThick() )| |
+ //| ------------------------------------------------- |
+ //| | XU0 : XPBX (PreShower e = GetPRPbRadThick() )| |
+ //| ------------------------------------------------- |
+ //| | XU0 : XPST (PreShower e = GetPEScintThick() )| |
+ //| ------------------------------------------------- |
+ //| | XU0 : XPBX (PreShower e = GetPRPbRadThick() )| |
+ //| ------------------------------------------------- |
+ //| etc ..... GetNPRLayers() times |
+ //| ------------------------------------------------- |
+ //| | XU1 : XPST (ECAL e = GetECScintThick() ) | |
+ //| ------------------------------------------------- |
+ //| | XU1 : XPBX (ECAL e = GetECPbRadThick() ) | |
+ //| ------------------------------------------------- |
+ //| | XU1 : XPST (ECAL e = GetECScintThick() | |
+ //| ------------------------------------------------- |
+ //| | XU1 : XPBX (ECAL e = GetECPbRadThick() ) | |
+ //| ------------------------------------------------- |
+ //| etc ..... GetNECLayers() times |
+ //| ------------------------------------------------- |
+ //| | XU1 : XPST (ECAL e = GetHCScintThick() ) | |
+ //| ------------------------------------------------- |
+ //| | XU1 : XPBX (ECAL e = GetHCPbRadThick() ) | |
+ //| ------------------------------------------------- |
+ //| | XU1 : XPST (ECAL e = GetHCScintThick() | |
+ //| ------------------------------------------------- |
+ //| | XU1 : XPBX (ECAL e = GetHCPbRadThick() ) | |
+ //| ------------------------------------------------- |
+ //| etc ..... GetNHCLayers() times |
+ //| ------------------------------------------------- |
+ //| | XU10 : XPST (HCAL e = GetHCScintThick() ) | |
+ //|-----------------------------------------------------|
+
Float_t etamin,etamax;
Float_t *dum=0;
// Get pointer to the array containing media indices
Int_t *idtmed = fIdtmed->GetArray() - 1599 ;
- // Create an Envelope within which to place the Detector
- Float_t envelopA[5];
- envelopA[0] = geom->GetEnvelop(0); // rmin
- envelopA[1] = geom->GetEnvelop(1); // rmax
- envelopA[2] = geom->GetEnvelop(2)/2.0; // dz
- envelopA[3] = geom->GetArm1PhiMin(); // minimun phi angle
- envelopA[4] = geom->GetArm1PhiMax(); // maximun phi angle
-
- // create XEN1
- gMC->Gsvolu("XEN1", "TUBS ", idtmed[1599], envelopA, 5) ; //filled with air
Int_t idrotm = 1;
AliMatrix(idrotm, 90.0, 0., 90.0, 90.0, 0.0, 0.0) ;
- // Position the EMCAL Mother Volume in Alice
+
+
+ // Create the EMCAL Mother Volume (a polygone) within which to place the Detector and named XEN1
+
+ Float_t envelopA[10];
+ envelopA[0] = geom->GetArm1PhiMin(); // minimum phi angle
+ envelopA[1] = geom->GetArm1PhiMax() - geom->GetArm1PhiMin(); // angular range in phi
+ envelopA[2] = geom->GetNPhi(); // number of sections in phi
+ envelopA[3] = 2; // 2 z coordinates
+ envelopA[4] = geom->ZFromEtaR(geom->GetEnvelop(1),
+ geom->GetArm1EtaMin()); // z coordinate 1
+ envelopA[5] = geom->GetEnvelop(0) ; // rmin at z1
+ envelopA[6] = geom->GetEnvelop(1) ; // rmax at z1
+ envelopA[7] = geom->ZFromEtaR(geom->GetEnvelop(1),
+ geom->GetArm1EtaMax()); // z coordinate 2
+ envelopA[8] = envelopA[5] ; // radii are the same.
+ envelopA[9] = envelopA[6] ; // radii are the same.
+
+ gMC->Gsvolu("XEN1", "PGON ", idtmed[1599], envelopA, 10) ; // Polygone filled with air
+
+ // Position the EMCAL Mother Volume (XEN1) in Alice (ALIC)
+
gMC->Gspos("XEN1", 1, "ALIC", 0.0, 0.0, 0.0, idrotm, "ONLY") ;
+
+ if (gDebug==2)
+ Info("CreateGeometry","rXEN1 = %f, %f\n", envelopA[5], envelopA[6]);
+
+ // Create mini-envelopes which will contain the PreShower scintillator-Lead-scintillator-lead
+
+ if (gDebug==2)
+ Info("CreateGeometry","XU0 = %f, %f\n", envelopA[5], envelopA[6]);
- //
- TString label = "XU0";
+ // Create mini-envelopes which will contain the Tower scintillator-radiator-scintillator-radiator
+
+ TString label ;
- //rmin Start mini envelopes after the aluminium layer
- envelopA[0] = geom->GetEnvelop(0) + geom->GetGap2Active() +
- geom->GetAlFrontThickness();
+ envelopA[5] = envelopA[5] + geom->GetGap2Active() // we are at the first scintllator
+ + geom->GetAlFrontThickness(); // rmin at z1
+ envelopA[6] = envelopA[5] ;
- //rmax larger for first two layers (preshower);
- Float_t tseg = geom->GetPreSintThick()+geom->GetPbRadThick();
- envelopA[1] = envelopA[0] + 2.0*tseg;
- envelopA[2] = geom->GetEnvelop(2)/2.0; // dz
- envelopA[3] = geom->GetArm1PhiMin(); // minimun phi angle
- envelopA[4] = geom->GetArm1PhiMax(); // maximun phi angle
- //filled with air
- gMC->Gsvolu(label.Data(), "TUBS ", idtmed[1599], envelopA, 5);
+ Int_t i ;
- // Place XU0 in to XEN1
- gMC->Gspos(label.Data(), 1, "XEN1", 0.0, 0.0, 0.0, idrotm, "ONLY");
+ Int_t nLayers = geom->GetNPRLayers() + geom->GetNECLayers() + geom->GetNHCLayers() ;
- tseg = geom->GetFullSintThick()+geom->GetPbRadThick();
- for (int i = 1; i < ((geom->GetNLayers()-1)/2) + 1 ; i++ ){
+ for (i = 0; i < nLayers/2 ; i++ ){
label = "XU" ;
label += i ;
- envelopA[0] = envelopA[1]; //rmin
- envelopA[1] = envelopA[0] + 2.0*tseg; //rmax
-
- //filled with air
- gMC->Gsvolu(label.Data(), "TUBS ", idtmed[1599], envelopA, 5);
+ Float_t tseg ;
+ if (i == 0 )
+ tseg = 2 *(geom->GetPRScintThick()+geom->GetPRPbRadThick()); // thickness of 2 * scintillator+Pb in pre shower
+ else if ( i <= geom->GetNECLayers()/2)
+ tseg = 2* (geom->GetECScintThick()+geom->GetECPbRadThick()); // thickness of 2 * scintillator+Pb in E Cal
+ else
+ tseg = 2* (geom->GetHCScintThick()+geom->GetHCCuRadThick()); // thickness of 2 * scintillator+Cu in H Cal
+ envelopA[5] = envelopA[6] ; // rmin at z1
+ envelopA[4] = geom->ZFromEtaR(envelopA[5] + tseg,
+ geom->GetArm1EtaMin()); // z coordinate 1
+ envelopA[7] = geom->ZFromEtaR(envelopA[5] + tseg,
+ geom->GetArm1EtaMax()); // z coordinate 2
+ envelopA[6] = envelopA[5] + tseg ; // rmax at z1
+ envelopA[8] = envelopA[5] ; // radii are the same.
+ envelopA[9] = envelopA[6] ; // radii are the same.
+
+ gMC->Gsvolu(label.Data(), "PGON", idtmed[1599], envelopA, 10);// Polygone filled with air
+
+ // Position XUi in XEN1
+
gMC->Gspos(label.Data(), 1, "XEN1", 0.0, 0.0, 0.0, idrotm, "ONLY") ;
- } // end i
+ if (gDebug == 2)
+ Info("CreateGeometry","XU%d = %f, %f\n", i, envelopA[5], envelopA[6]);
+
+ } // end i
+
+
+ // Create one mini-envelope which will contain the last Tower scintillator (XU(nlayers-1)/2)
+
+ label = "XU" ;
+ label += i ;
+ envelopA[5] = envelopA[6] ; // rmin at z1
+ envelopA[4] = geom->ZFromEtaR(envelopA[5],
+ geom->GetArm1EtaMin()); // z coordinate 1
+ envelopA[7] = geom->ZFromEtaR(envelopA[5],
+ geom->GetArm1EtaMax()); // z coordinate 2
+ if (geom->GetNHCLayers() == 0) // last scintillator is in ECAL
+ envelopA[6] = envelopA[5] + geom->GetECScintThick() ; // rmax at z1
+ else // last scintillator is in HCAL
+ envelopA[6] = envelopA[5] + geom->GetECScintThick() ; // rmax at z1
+ envelopA[8] = envelopA[5] ; // radii are the same.
+ envelopA[9] = envelopA[6] ; // radii are the same.
+
+ gMC->Gsvolu(label.Data(), "PGON", idtmed[1599], envelopA, 10); // Polygone filled with air
+
+ // Position the last minienvelope in XEN1
+
+ gMC->Gspos(label.Data(), 1, "XEN1", 0.0, 0.0, 0.0, idrotm, "ONLY") ;
+
+ if(gDebug == 2)
+ Info("CreateGeometry","XEN%d = %f, %f\n", i, envelopA[5], envelopA[6]);
+
// Create the shapes of active material (LEAD/Aluminium/Scintillator)
// to be placed
Float_t envelopB[10]; // First Layer of Aluminium
Float_t envelopC[10]; // Scintillator Layers
Float_t envelopD[10]; // Lead Layers
- //starting position in Phi
- envelopC[0] = envelopD[0] = envelopB[0] = geom->GetArm1PhiMin();
-
- // Angular size of the Detector in Phi
- envelopB[1] = geom->GetArm1PhiMax() - geom->GetArm1PhiMin();
- envelopC[1] = envelopD[1] = envelopB[1];
-
- // Number of Section in Phi
- envelopC[2] = envelopD[2] = envelopB[2] = geom->GetNPhi();
-
- // each section will be passed 2 z coordinates
- envelopD[3] = envelopC[3] = envelopB[3] = 2;
- envelopB[4] = geom->ZFromEtaR(geom->GetEnvelop(0)+geom->GetGap2Active(),
- geom->GetArm1EtaMin());// z co-ordinate 1
- envelopB[5] = geom->GetEnvelop(0) + geom->GetGap2Active(); //rmin at z1
- envelopB[6] = envelopB[5] + geom->GetAlFrontThickness();//rmax at z1
- envelopD[6] = envelopB[6];
- envelopB[7] = geom->ZFromEtaR(geom->GetEnvelop(0)+geom->GetGap2Active(),
- geom->GetArm1EtaMax()); // z co-ordinate 2
- envelopB[8] = envelopB[5] ; //
- envelopB[9] = envelopB[6] ; // radii are the same.
-
- // filled shapes wit hactive material
-
- // Define Aluminium volume completely
- gMC->Gsvolu("XALU", "PGON", idtmed[1602], envelopB, 10);
-
- // The polystyrene layers will be defined when placed
- gMC->Gsvolu("XPST", "PGON", idtmed[1601], dum, 0);
- gMC->Gsvolu("XPBX", "PGON", idtmed[1600], dum, 0);// as will the lead layers
+ envelopC[0] = envelopD[0] = envelopB[0] = envelopA[0] ; // starting position in Phi
+ envelopC[1] = envelopD[1] = envelopB[1] = envelopA[1] ; // angular range in phi
+ envelopC[2] = envelopD[2] = envelopB[2] = envelopA[2] ; // number of sections in Phi
+ envelopD[3] = envelopC[3] = envelopB[3] = envelopA[3] ; // 2 z coordinates
+
+ Float_t dist = geom->GetEnvelop(0) + geom->GetAlFrontThickness() + geom->GetGap2Active() ;
+ envelopB[4] = geom->ZFromEtaR(dist,
+ geom->GetArm1EtaMin()); // z co-ordinate 1
+ envelopB[5] = geom->GetEnvelop(0) ; // rmin at z1
+ envelopB[6] = envelopB[5] + geom->GetAlFrontThickness();// rmax at z1
+ envelopB[7] = geom->ZFromEtaR(dist,
+ geom->GetArm1EtaMax()); // z co-ordinate 2
+ envelopB[8] = envelopB[5] ; // radii are the same.
+ envelopB[9] = envelopB[6] ; // radii are the same.
+
+ // Define active volumes completely
+
+ gMC->Gsvolu("XALU", "PGON", idtmed[1602], envelopB, 10); // PGON filled with Al
+
+ gMC->Gspos("XALU", 1, "XEN1", 0.0, 0.0, 0.0 , idrotm, "ONLY") ; // Position Aluminium Layer in XEN1
- // Dividind eta polystyrene divisions into phi segments.
- gMC->Gsdvn("XPHI", "XPST", geom->GetNPhi(), 2);
+ gMC->Gsvolu("XPST", "PGON", idtmed[1601], dum, 0); // PGON filled with Scintillator (shape to be defined by GSPOSP)
+
+ gMC->Gsvolu("XPBX", "PGON", idtmed[1600], dum, 0); // PGON filled with Lead (shape to be defined by GSPOSP)
+
+ gMC->Gsvolu("XCUX", "PGON", idtmed[1603], dum, 0); // PGON filled with Copper (shape to be defined by GSPOSP)
- // Position Aluminium Layer in the Envelope
- gMC->Gspos("XALU", 1, "XEN1", 0.0, 0.0, 0.0 , idrotm, "ONLY") ;
+ gMC->Gsdvn("XPHI", "XPST", geom->GetNPhi(), 2); // Divide eta section of scintillators into phi segments.
+
+ // Position alternatively scintillator and Lead Layers in XUi.
- // The loop below places the scintillator in Lead Layers alternately.
- for (int i = 0; i < geom->GetNLayers() ; i++ ){
- label = "XU" ;
- label += (int) i/2 ; // we will place two layers (i = one layer) in each mini envelope)
- envelopC[5] = envelopD[6] ; //rmin
- envelopC[6] = envelopD[6] + ((i > 1) ? geom->GetFullSintThick() :
- geom->GetPreSintThick());//rmax larger for first two layers (preshower)
- envelopC[8] = envelopD[6] ; //rmin
- envelopC[9] = envelopD[6] + ((i > 1 ) ? geom->GetFullSintThick() :
- geom->GetPreSintThick());//rmax larger for first two layers (preshower)
- for (int j =0; j < (geom->GetNEta()) ; j++){
+ envelopD[6] = envelopB[6] + geom->GetGap2Active() ;// gap between Al layer and XU0
+
+ for (int i = 0; i < nLayers; i++ ){
+ label = "XU" ;
+ label += static_cast<Int_t> (i/2) ; // we will place two layers (i = one layer) in each mini envelope)
+
+ Float_t scthick ; // scintillator thickness
+ if ( i < geom->GetNPRLayers() ) // its a preshower
+ scthick = geom->GetPRScintThick() ;
+ else if( i < geom->GetNPRLayers() + geom->GetNECLayers() ) // its an EMCAL section
+ scthick = geom->GetECScintThick() ;
+ else // its an HCAL section
+ scthick = geom->GetHCScintThick() ;
+
+ envelopC[5] = envelopD[6] ; //rmin
+ envelopC[6] = envelopC[5] + scthick ; //rmax
+ envelopC[8] = envelopC[5] ; //rmin
+ envelopC[9] = envelopC[6] ; //rmax
+
+
+ // envelopC[6] = envelopD[6] + ((i > 1) ? geom->GetFullSintThick() : geom->GetPreSintThick());//rmax larger for first two layers (preshower)
+ // envelopC[9] = envelopD[6] + ((i > 1 ) ? geom->GetFullSintThick() :geom->GetPreSintThick());//rmax larger for first two layers (preshower)
+
+ if(gDebug == 2 )
+ Info("CreateGeometry", "volume = %s, name = XPST thickness = %f deb = %f/%f fin = %f/%f", label.Data(), scthick, envelopC[5], envelopC[8], envelopC[6], envelopC[9]) ;
+
+ for (int j =0; j < (geom->GetNEta()) ; j++){
+ etamin = geom->GetArm1EtaMin()+
+ (j*geom->GetDeltaEta());
+ etamax = geom->GetArm1EtaMin()+
+ ((j+1)*geom->GetDeltaEta());
+ envelopC[4] = geom->ZFromEtaR(envelopC[5],etamin); //z begin
+ envelopC[7] = geom->ZFromEtaR(envelopC[5],etamax);// z end
+
+ gMC->Gsposp("XPST",1+j+i*(geom->GetNEta()), label.Data(),
+ 0.0, 0.0, 0.0 , idrotm, "ONLY", envelopC, 10); // Position and define layer
+ } // end for j
+
+ if (i < nLayers){
+ Float_t radthick ; // radiator thickness
+ TString radname ; // radiator name
+ if ( i <= 1 ) { // its a preshower
+ radthick = geom->GetPRPbRadThick();
+ radname = "XPBX" ;
+ }
+ else if( i <= geom->GetNECLayers()) {// its an EMCAL section
+ radthick = geom->GetECPbRadThick();
+ radname = "XPBX" ;
+ }
+ else { // its an HCAL section
+ radthick = geom->GetHCCuRadThick();
+ radname = "XCUX" ;
+ }
+
+ if ( i < nLayers -1 ) { // except for the last XU which contains only one scintillator layer
+
+ envelopD[5] = envelopC[6] ; //rmin
+ envelopD[8] = envelopD[5] ; //rmin
+ envelopD[6] = envelopD[5] + radthick ; // rmax
+ // envelopD[6] = envelopC[6] + geom->GetPbRadThick(); //rmax
+ envelopD[9] = envelopD[6] ; //rmax
+ // envelopD[9] = envelopC[6] + geom->GetPbRadThick(); //rmax
+
+ if(gDebug == 2 )
+ Info("CreateGeometry", "volume = %s, name = %s thickness = %f deb = %f/%f fin = %f/%f", label.Data(), radname.Data(), radthick, envelopD[5], envelopD[8], envelopD[6], envelopD[9]) ;
+
+ for (int j =0; j < (geom->GetNEta()) ; j++){
etamin = geom->GetArm1EtaMin()+
- (j*geom->GetDeltaEta());
+ (j*geom->GetDeltaEta());
etamax = geom->GetArm1EtaMin()+
- ((j+1)*geom->GetDeltaEta());
- envelopC[4] = geom->ZFromEtaR(envelopD[6],etamin); //z begin
- envelopC[7] = geom->ZFromEtaR(envelopD[6],etamax);// z end
- gMC->Gsposp("XPST",1+j+i*(geom->GetNEta()), label.Data(), // should be used but there's a weird crash above i = 18,
- 0.0, 0.0, 0.0 , idrotm, "ONLY", envelopC, 10); // Position and define layer
- } // end for j
-
- if (i < (geom->GetNLayers()-1)){
- envelopD[5] = envelopC[6] ; //rmin
- envelopD[6] = envelopC[6] + geom->GetPbRadThick(); //rmax
- envelopD[8] = envelopC[6] ; //rmin
- envelopD[9] = envelopC[6] + geom->GetPbRadThick(); //rmax
- for (int j =0; j < (geom->GetNEta()) ; j++){
- etamin = geom->GetArm1EtaMin()+
- (j*geom->GetDeltaEta());
- etamax = geom->GetArm1EtaMin()+
- ((j+1)*geom->GetDeltaEta());
- envelopD[4] = geom->ZFromEtaR(envelopC[6],etamin);//z begin
- envelopD[7] = geom->ZFromEtaR(envelopC[6],etamax);// z end
-
- // Position and Define Layer
- gMC->Gsposp("XPBX",1+ j+i*(geom->GetNEta()), label.Data(),
- 0.0, 0.0, 0.0 , idrotm, "ONLY", envelopD, 10);
- } // end for j
- } // end if i
+ ((j+1)*geom->GetDeltaEta());
+ envelopD[4] = geom->ZFromEtaR(envelopD[5],etamin);//z begin
+ envelopD[7] = geom->ZFromEtaR(envelopD[5],etamax);// z end
+
+ // Position and Define Layer
+
+ gMC->Gsposp(radname.Data(),1+j+i*(geom->GetNEta()), label.Data(),
+ 0.0, 0.0, 0.0 , idrotm, "ONLY", envelopD, 10);
+ } // end for j
+ } // if not last layer
+ } // end if i
} // for i
}
if(fDebug) {
TString message("\n") ;
- message += "*****************************************" ;
+ message += "*****************************************\n" ;
// Here the EMCAL initialisation code (if any!)
if (geom!=0) {
message += "AliEMCAL " ;
message += Version() ;
- message += "EMCAL geometry intialized for " ;
+ message += "EMCAL geometry initialized for " ;
message += geom->GetName() ;
}
else {
message += Version() ;
message += "EMCAL geometry initialization failed !" ;
}
- message += "*****************************************" ;
+ message += "\n*****************************************" ;
Info("Init", message.Data() ) ;
}
}
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff