- // Position ENV1 container in ALIC
- gMC->Gspos("XEN1", 1, "ALIC", 0.0, 0.0, 0.0, idrotm, "MANY") ;
- // Position ARM1 into ENV1
- gMC->Gspos("XALU", 1, "XEN1", 0.0, 0.0, 0.0 , idrotm, "ONLY") ;
-
- for (int i = 0; i < (fGeom->GetNLayers()); i++ ){
- envelopC[5] = envelopD[6] ; //rmin
- envelopC[6] = envelopD[6] + ((i > +2) ? 0.5 : 0.6) ; //rmax
- envelopC[8] = envelopD[6] ; //rmin
- envelopC[9] = envelopD[6] + ((i > 2 ) ? 0.5 : 0.6) ; //rmax
- for (int j =0; j < (fGeom->GetNZ()) ; j++){
- envelopC[4] = envelopD[6]/tan(2*atan(exp(0.7-(j*1.4/
- (fGeom->GetNZ())))));
- envelopC[7] = envelopD[6]/tan(2*atan(exp(0.7-((j+1)*1.4/
- (fGeom->GetNZ())))));
- gMC->Gsposp("XPST",1+j+i*(fGeom->GetNZ()), "XEN1",
- 0.0, 0.0, 0.0 , idrotm, "ONLY", envelopC, 10);
- } // end for j
- if (i < (fGeom->GetNLayers()-1)){
- envelopD[5] = envelopC[6] ; //rmin
- envelopD[6] = envelopC[6] + 0.5; //rmax
- envelopD[8] = envelopC[6] ; //rmin
- envelopD[9] = envelopC[6] + 0.5; //rmax
- for (int j =0; j < (fGeom->GetNZ()) ; j++){
- envelopD[4] = envelopC[6]/tan(2*atan(exp(0.7-(j*1.4/
- (fGeom->GetNZ())))));
- envelopD[7] = envelopC[6]/tan(2*atan(exp(0.7-((j+1)*1.4/
- (fGeom->GetNZ())))));
- gMC->Gsposp("XPBX",1+ j+i*(fGeom->GetNZ()), "XEN1",
- 0.0, 0.0, 0.0 , idrotm, "MANY", envelopD, 10) ;
- } // end for j
- } // end if i
+ // 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
+ //add some padding for mother volume
+ 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) {
+ printf("CreateGeometry: XEN1 = %f, %f\n", envelopA[5], envelopA[6]);
+ printf("CreateGeometry: XU0 = %f, %f\n", envelopA[5], envelopA[6]);
+ }
+ // Create mini-envelopes which will contain the Tower scintillator-radiator
+
+ TString label ;
+
+ envelopA[5] = envelopA[5] + geom->GetGap2Active() // we are at the first scintllator
+ + geom->GetAlFrontThickness(); // rmin at z1
+ envelopA[6] = envelopA[5] ;
+
+
+ Int_t i ;
+
+ Int_t nLayers = geom->GetNECLayers();
+
+ for (i = 0; i < (nLayers-1); i++ ){
+ label = "XU" ;
+ label += i ;
+ Float_t tseg ;
+ tseg = geom->GetECScintThick()+geom->GetECPbRadThick(); // thickness of scintillator+Pb in E 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") ;
+
+ if (gDebug == 2)
+ printf("CreateGeometry: XU%d = %f, %f\n", i, envelopA[5], envelopA[6]);
+
+ } // end i
+
+
+ // Create one mini-envelope which will contain the last scintillator XU(nlayers-1) because there is one more scintillator than Pb layer XU(nlayers-1)
+
+ label = "XU" ;
+ label += i ;
+ envelopA[5] = envelopA[6] ; // rmin at z1
+ envelopA[4] = geom->ZFromEtaR(envelopA[5] + geom->GetECScintThick(),
+ geom->GetArm1EtaMin()); // z coordinate 1
+ envelopA[7] = geom->ZFromEtaR(envelopA[5] + geom->GetECScintThick(),
+ geom->GetArm1EtaMax()); // z coordinate 2
+ 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)
+ printf("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
+
+ 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
+ envelopC[3] = envelopD[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
+
+ 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)
+
+ gMC->Gsdvn("XPHI", "XPST", geom->GetNPhi(), 2); // Divide eta section of scintillators into phi segments.
+
+ // Position alternatively scintillator and Lead Layers in XUi.
+
+ envelopD[6] = envelopB[6] + geom->GetGap2Active() ;// gap between Al layer and XU0
+
+ for (int i = 0; i < nLayers; i++ ){
+ label = "XU" ;
+ label += i ; // we will place one layer in each mini envelope)
+
+ Float_t scthick ; // scintillator thickness
+ scthick = geom->GetECScintThick() ;
+
+ envelopC[5] = envelopD[6] ; //rmin
+ envelopC[6] = envelopC[5] + scthick ; //rmax
+ envelopC[8] = envelopC[5] ; //rmin
+ envelopC[9] = envelopC[6] ; //rmax
+
+ if(gDebug == 2 )
+ printf("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
+
+ Float_t radthick ; // radiator thickness
+ TString radname ; // radiator name
+ radthick = geom->GetECPbRadThick();
+ radname = "XPBX" ;
+
+ 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[9] = envelopD[6] ; //rmax
+
+ if(gDebug == 2 )
+ printf("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());
+ etamax = geom->GetArm1EtaMin()+
+ ((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