1 /**************************************************************************
2 * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
4 * Author: The ALICE Off-line Project. *
5 * Contributors are mentioned in the code where appropriate. *
7 * Permission to use, copy, modify and distribute this software and its *
8 * documentation strictly for non-commercial purposes is hereby granted *
9 * without fee, provided that the above copyright notice appears in all *
10 * copies and that both the copyright notice and this permission notice *
11 * appear in the supporting documentation. The authors make no claims *
12 * about the suitability of this software for any purpose. It is *
13 * provided "as is" without express or implied warranty. *
14 **************************************************************************/
18 Revision 1.22 2001/03/13 13:07:33 kowal2
19 Corrected bug in the TPC mother volume geometry.
22 Revision 1.21 2000/11/14 10:48:57 kowal2
23 Correct material used for TSA4. Thanks to J. Barbosa.
25 Revision 1.20 2000/11/06 17:24:10 kowal2
26 Corrected bug in the outer containment vessel and
27 the outer field cage geometry.
30 Revision 1.19 2000/11/02 16:55:24 kowal2
31 Corrected bug in the inner containment vessel geometry.
34 Revision 1.18 2000/11/02 07:24:11 kowal2
35 Correction in the TPC geometry.
36 Changes due to the new hit structure.
38 Revision 1.17 2000/07/10 20:57:39 hristov
39 Update of TPC code and macros by M.Kowalski
41 Revision 1.16 2000/06/30 12:07:50 kowal2
42 Updated from the TPC-PreRelease branch
44 Revision 1.15.2.4 2000/06/26 07:39:42 kowal2
45 Changes to obey the coding rules
47 Revision 1.15.2.3 2000/06/25 08:38:41 kowal2
48 Splitted from AliTPCtracking
50 Revision 1.15.2.2 2000/06/16 12:58:13 kowal2
51 Changed parameter settings
53 Revision 1.15.2.1 2000/06/09 07:15:07 kowal2
55 Defaults loaded automatically (hard-wired)
56 Optional parameters can be set via macro called in the constructor
58 Revision 1.15 2000/05/15 10:00:30 kowal2
59 Corrected bug in the TPC geometry, thanks to Ivana Hrivnacova
61 Revision 1.14 2000/04/17 09:37:33 kowal2
62 removed obsolete AliTPCDigitsDisplay.C
64 Revision 1.13.8.2 2000/04/10 08:33:44 kowal2
66 Updated readout chambers
68 Revision 1.13.8.1 2000/04/10 07:56:53 kowal2
69 Not used anymore - removed
71 Revision 1.13 1999/11/04 17:28:06 fca
72 Correct barrel part of HV Degrader
74 Revision 1.12 1999/10/08 06:27:23 fca
75 Corrected bug in the HV degrader geometry, thanks to G.Tabary
77 Revision 1.11 1999/10/04 13:39:54 fca
78 Correct array index problem
80 Revision 1.10 1999/09/29 09:24:34 fca
81 Introduction of the Copyright and cvs Log
86 ///////////////////////////////////////////////////////////////////////////////
88 // Time Projection Chamber version 0 -- "coarse" TPC //
92 <img src="picts/AliTPCv0Class.gif">
97 ///////////////////////////////////////////////////////////////////////////////
100 #include <TGeometry.h>
103 #include "AliTPCv0.h"
105 #include <iostream.h>
108 #include "AliConst.h"
110 #include "AliTPCParamSR.h"
111 #include "AliTPCDigitsArray.h"
115 //_____________________________________________________________________________
116 AliTPCv0::AliTPCv0(const char *name, const char *title)
120 // Standard creator for TPC version 0
123 SetGasMixt(2,20,10,-1,0.9,0.1,0.);
126 fTPCParam->Write(fTPCParam->GetTitle());
129 //_____________________________________________________________________________
130 void AliTPCv0::CreateGeometry()
134 // Creation of the TPC version 0, i.e. no sensitive volumes,
135 // only the material distribution
139 <img src="picts/AliTPC.gif">
144 <img src="picts/AliTPCv0Tree.gif">
148 //---------------------------------------------------------------
151 // Origin: Marek Kowalski, INP Cracow
152 // Marek.Kowalski@ifj.edu.pl
153 //---------------------------------------------------------------
156 Int_t *idtmed = fIdtmed->GetArray(); // TPC media
158 Int_t idrotm[120]; // rotation matrices
160 Int_t nRotMat = 0; // actual number of rotation matrices
164 // Mother volume TPC (Air) - all volumes will be positioned in it
219 gMC->Gsvolu("TPC ","PCON",idtmed[0],dm,27);
223 //-------------------------------------------------------------------
224 // Tpc Outer INsulator (CO2) - contains cont. vessel and field cage
225 //-------------------------------------------------------------------
267 gMC->Gsvolu("TOIN","PCON",idtmed[3],dm,21);
269 //----------------------------------------------------------------
270 // Tpc Outer Contaiment Vessel
271 // mother volume - Al, daughters - composite (sandwich)
272 //----------------------------------------------------------------
314 gMC->Gsvolu("TOCV","PCON",idtmed[4],dm,21);
316 // Daughter volumes - sandwich
318 // Tpc SAndwich 1 - Al
324 gMC->Gsvolu("TSA1","TUBE",idtmed[4],dm,3);
326 // Tpc SAndwich 2 - epoxy glue (I use Lexan)
331 gMC->Gsvolu("TSA2","TUBE",idtmed[14],dm,3);
333 // Tpc SAndwich 3 - Tedlar
338 gMC->Gsvolu("TSA3","TUBE",idtmed[9],dm,3);
341 // Tpc SAndwich 4 - fiber glass (G10)
346 gMC->Gsvolu("TSA4","TUBE",idtmed[12],dm,3);
348 // Tpc SAndwich 5 - NOMEX honeycomb
353 gMC->Gsvolu("TSA5","TUBE",idtmed[6],dm,3);
355 // 5->4->3->2->1->TCOV
358 gMC->Gspos("TSA5",1,"TSA4",0.,0.,0.,0,"ONLY");
359 gMC->Gspos("TSA4",1,"TSA3",0.,0.,0.,0,"ONLY");
360 gMC->Gspos("TSA3",1,"TSA2",0.,0.,0.,0,"ONLY");
361 gMC->Gspos("TSA2",1,"TSA1",0.,0.,0.,0,"ONLY");
363 gMC->Gspos("TSA1",1,"TOCV",0.,0.,3.,0,"ONLY");
367 gMC->Gspos("TOCV",1,"TOIN",0.,0.,0.,0,"ONLY");
369 //-------------------------------------------------------
370 // Tpc Outer Field Cage
371 // mother volume - Al, daughters - composite (sandwich)
372 //-------------------------------------------------------
414 gMC->Gsvolu("TOFC","PCON",idtmed[4],dm,21);
418 // Tpc SAndwich 6 - Tedlar
424 gMC->Gsvolu("TSA6","TUBE",idtmed[9],dm,3);
426 // Tpc SAndwich 7 - fiber glass
431 gMC->Gsvolu("TSA7","TUBE",idtmed[12],dm,3);
434 // Tpc SAndwich 8 - NOMEX
439 gMC->Gsvolu("TSA8","TUBE",idtmed[6],dm,3);
443 gMC->Gspos("TSA8",1,"TSA7",0.,0.,0.,0,"ONLY");
444 gMC->Gspos("TSA7",1,"TSA6",0.,0.,0.,0,"ONLY");
445 gMC->Gspos("TSA6",1,"TOFC",0.,0.,0.,0,"ONLY");
449 gMC->Gspos("TOFC",1,"TOIN",0.,0.,0.,0,"ONLY");
453 gMC->Gspos("TOIN",1,"TPC ",0.,0.,0.,0,"ONLY");
457 //--------------------------------------------------------------------
458 // Tpc Inner INsulator (CO2) - inner f.c. will be placed there
459 // Inner containment vessel will be placed directly in the TPC
460 //--------------------------------------------------------------------
490 gMC->Gsvolu("TIIN","PCON",idtmed[3],dm,15);
492 // the middle part of the F.C. is thinner - carve out the strip - Ne-CO2
498 gMC->Gsvolu("TII1","TUBE",idtmed[1],dm,3);
500 gMC->Gspos("TII1",1,"TIIN",0.,0.,0.,0,"ONLY");
502 //-----------------------------------------------------
503 // Tpc Inner Field Cage
504 // mother volume - Al, daughters - composite (sandwich)
505 //------------------------------------------------------
571 gMC->Gsvolu("TIFC","PCON",idtmed[4],dm,33);
573 // daughter volumes - central part
575 // Tpc Sandwich 9 -Tedlar
581 gMC->Gsvolu("TSA9","TUBE",idtmed[9],dm,3);
583 // Tpc Sandwich 10 - fiber glass (G10)
588 gMC->Gsvolu("TS10","TUBE",idtmed[12],dm,3);
590 // Tpc Sandwich 11 - NOMEX
595 gMC->Gsvolu("TS11","TUBE",idtmed[6],dm,3);
599 gMC->Gspos("TS11",1,"TS10",0.,0.,0.,0,"ONLY");
600 gMC->Gspos("TS10",1,"TSA9",0.,0.,0.,0,"ONLY");
602 gMC->Gspos("TSA9",1,"TIFC",0.,0.,0.,0,"ONLY");
604 // daughter volumes - outer parts (reinforced)
606 // Tpc Sandwich 12 -Tedlar
612 gMC->Gsvolu("TS12","TUBE",idtmed[9],dm,3);
614 // Tpc Sandwich 13 - fiber glass (G10)
619 gMC->Gsvolu("TS13","TUBE",idtmed[12],dm,3);
621 // Tpc Sandwich 14 - NOMEX
626 gMC->Gsvolu("TS14","TUBE",idtmed[6],dm,3);
630 gMC->Gspos("TS14",1,"TS13",0.,0.,0.,0,"ONLY");
631 gMC->Gspos("TS13",1,"TS12",0.,0.,0.,0,"ONLY");
633 gMC->Gspos("TS12",1,"TIFC",0.,0.,170.05,0,"ONLY");
634 gMC->Gspos("TS12",2,"TIFC",0.,0.,-170.05,0,"ONLY");
636 // place this inside the inner insulator
638 gMC->Gspos("TIFC",1,"TIIN",0.,0.,0.,0,"ONLY");
640 // and now in the TPC...
642 gMC->Gspos("TIIN",1,"TPC ",0.,0.,0.,0,"ONLY");
644 //---------------------------------------------------------
645 // Tpc Inner Containment vessel - Cones
646 //---------------------------------------------------------
700 gMC->Gsvolu("TICC","PCON",idtmed[4],dm,27);
702 Float_t phi1,phi2,phi3,theta1,theta2,theta3; // rotation angles
713 AliMatrix(idrotm[nRotMat], theta1, phi1, theta2, phi2, theta3, phi3);
715 gMC->Gspos("TICC",1,"TPC ",0.,0.,0.,0,"ONLY");
716 gMC->Gspos("TICC",2,"TPC ",0.,0.,0.,idrotm[nRotMat],"ONLY");
719 //---------------------------------------------------------
720 // Tpc Inner Containment vessel - Middle part -Al
721 //---------------------------------------------------------
763 gMC->Gsvolu("TICM","PCON",idtmed[4],dm,21);
765 // Tpc Sandwich 15 - Al
771 gMC->Gsvolu("TS15","TUBE",idtmed[4],dm,3);
773 // Tpc Sandwich 16 - epoxy glue
778 gMC->Gsvolu("TS16","TUBE",idtmed[14],dm,3);
780 // Tpc Sandwich 17 - Tedlar
785 gMC->Gsvolu("TS17","TUBE",idtmed[9],dm,3);
787 // Tpc Sandwich 18 - fiber glass
792 gMC->Gsvolu("TS18","TUBE",idtmed[12],dm,3);
794 // Tpc Sandwich 19 - Nomex
799 gMC->Gsvolu("TS19","TUBE",idtmed[12],dm,3);
801 // 19->18->17->16->15-> TICM
803 gMC->Gspos("TS19",1,"TS18",0.,0.,0.,0,"ONLY");
804 gMC->Gspos("TS18",1,"TS17",0.,0.,0.,0,"ONLY");
805 gMC->Gspos("TS17",1,"TS16",0.,0.,0.,0,"ONLY");
806 gMC->Gspos("TS16",1,"TS15",0.,0.,0.,0,"ONLY");
808 gMC->Gspos("TS15",1,"TICM ",0.,0.,0.,0,"ONLY");
811 // TPc inner cont. vessel Joints
817 gMC->Gsvolu("TPJ1","TUBE",idtmed[4],dm,3);
819 gMC->Gspos("TPJ1",1,"TPC ",0.,0.,72.3,0,"ONLY");
820 gMC->Gspos("TPJ1",2,"TPC ",0.,0.,-72.3,0,"ONLY");
852 gMC->Gsvolu("TPJ2","PCON",idtmed[4],dm,15);
854 gMC->Gspos("TPJ2",1,"TPC ",0.,0.,0.,0,"ONLY");
855 gMC->Gspos("TPJ2",2,"TPC ",0.,0.,0.,idrotm[nRotMat],"ONLY");
859 // Tpc Inner Containment vessel Seal (Viton, I use Lexan for a time being)
865 gMC->Gsvolu("TICS","TUBE",idtmed[14],dm,3);
867 gMC->Gspos("TICS",1,"TPC ",0.,0.,71.7,0,"ONLY");
868 gMC->Gspos("TICS",2,"TPC ",0.,0.,-71.7,0,"ONLY");
872 gMC->Gspos("TICM",1,"TPC ",0.,0.,0.,0,"ONLY");
876 nRotMat++; // prepare for the next rotation matrix
878 //---------------------------------------------------------
879 // Tpc Dift Gas volume Nonsensitive (Ne-CO2 90/10)
880 // and its daughters (HV membrane, rods, readout chambers)
881 //---------------------------------------------------------
887 gMC->Gsvolu("TDGN","TUBE",idtmed[1],dm,3);
889 // sector opening angles
891 Float_t innerOpenAngle = fTPCParam->GetInnerAngle();
893 // sector angle shift
895 Float_t innerAngleShift = fTPCParam->GetInnerAngleShift();
899 Int_t nInnerSector = fTPCParam->GetNInnerSector()/2;
900 Int_t nOuterSector = fTPCParam->GetNOuterSector()/2;
902 // All above parameters are identical for inner and outer
903 // sectors. The distinction is kept for the historical reasons
904 // and eventually will disappear.
906 Float_t tanAlpha = TMath::Tan(0.5*innerOpenAngle);
907 Float_t cosAlpha = TMath::Sqrt(1.+tanAlpha*tanAlpha);
910 //-------------------------------------------------------------------------
911 // Tpc Inner Readout Chambers
912 //-------------------------------------------------------------------------
916 dm[2]= 1.6; // thickness
919 gMC->Gsvolu("TIRC","TRD1",idtmed[4],dm,4);
921 // this volume will be positioned in the empty space
922 // of the end-cap to avoid overlaps
929 gMC->Gsvolu("TIC1","TRD1",idtmed[4],dm,4);
932 //------------------------------------------------
933 // Tpc Inner readout chamber Pad Plane
934 //------------------------------------------------
941 gMC->Gsvolu("TIPP","TRD1",idtmed[12],dm,4);
945 dm[0] -= 1.218511934;
946 dm[1] -= 1.218511934;
949 gMC->Gsvolu("TIC3","TRD1",idtmed[1],dm,4);
951 gMC->Gspos("TIC3",1,"TIPP",0.,0.15,0.,0,"ONLY");
953 gMC->Gspos("TIPP",1,"TIRC",0.,1.1,0.,0,"ONLY");
956 //----------------------------------------------
957 // Tpc Readout Chambers Empty spaces - for both
958 // inner and outer sectors
959 //----------------------------------------------
961 gMC->Gsvolu("TRCE","TRD1",idtmed[0],dm,0);
963 // Inner sector - 4 spaces
974 space = rr*tanAlpha-dm[0];
976 for(Int_t nsLow=0;nsLow<4;nsLow++){
979 dm[1]= rr*tanAlpha - space;
983 gMC->Gsposp("TRCE",nsLow+1,"TIRC",0.,-0.8,zz,0,"ONLY",dm,4);
989 gMC->Gsposp("TRCE",nsLow+5,"TIC1",0.,1.05,zz-2.1,0,"ONLY",dm,4);
992 dm[0] = rr*tanAlpha - space;
998 // dm[1] - this is the dm[1] from the previous TRCE
1002 gMC->Gsposp("TRCE",9,"TIC1",0.,-1.2,0.,0,"ONLY",dm,4);
1005 // TPc Space for Connectors
1012 gMC->Gsvolu("TPSC","BOX ",idtmed[0],dm,3);
1020 gMC->Gsvolu("TPCC","BOX ",idtmed[13],dm,3);
1022 gMC->Gspos("TPCC",1,"TPSC",0.,0.15,0.,0,"ONLY");
1030 // inner part of the inner sector - 2 x 20 holes
1032 astep = 20.00096874/19.;
1034 alpha = 10.00048437-astep;
1046 for(ncon=0;ncon<20;ncon++){
1052 phi3 = (alpha>0) ? 0. : 180.;
1053 theta3 = TMath::Abs(alpha);
1055 AliMatrix(idrotm[nRotMat], theta1, phi1, theta2, phi2, theta3, phi3);
1059 gMC->Gspos("TPSC",ncon+1,"TIRC",x1,0.3,-12.7875,idrotm[nRotMat],"ONLY");
1060 gMC->Gspos("TPSC",ncon+21,"TIRC",x2,0.3,-2.8625,idrotm[nRotMat],"ONLY");
1071 // outer part of the inner sector - 2 x 25 holes
1073 astep = 20.00096874/24.;
1074 alpha = 10.00048437-astep;
1082 for(ncon=0;ncon<25;ncon++){
1088 phi3 = (alpha>0) ? 0. : 180.;
1089 theta3 = TMath::Abs(alpha);
1091 AliMatrix(idrotm[nRotMat], theta1, phi1, theta2, phi2, theta3, phi3);
1095 gMC->Gspos("TPSC",ncon+41,"TIRC",x1,0.3,7.0625,idrotm[nRotMat],"ONLY");
1096 gMC->Gspos("TPSC",ncon+66,"TIRC",x2,0.3,16.9875,idrotm[nRotMat],"ONLY");
1107 //--------------------------------------------------------------------------
1108 // TPC Outer Readout Chambers
1109 // this is NOT a final design
1110 //--------------------------------------------------------------------------
1114 dm[2]= 1.5; //thickness
1117 gMC->Gsvolu("TORC","TRD1",idtmed[4],dm,4);
1119 //------------------------------------------------
1120 // Tpc Outer readout chamber Pad Plane
1121 //------------------------------------------------
1125 gMC->Gsvolu("TOPP","TRD1",idtmed[12],dm,4);
1127 dm[0] -= 1.218511934;
1128 dm[1] -= 1.218511934;
1131 gMC->Gsvolu("TOC3","TRD1",idtmed[1],dm,4);
1133 gMC->Gspos("TOC3",1,"TOPP",0.,0.15,0.,0,"ONLY");
1135 gMC->Gspos("TOPP",1,"TORC",0.,1.0,0.,0,"ONLY");
1144 gMC->Gsposp("TRCE",10,"TORC",0.,-0.8,-2.15,0,"ONLY",dm,4);
1151 gMC->Gsvolu("TOC1","TRD1",idtmed[4],dm,4);
1158 gMC->Gsposp("TRCE",11,"TOC1",0.,0.,0.,0,"ONLY",dm,4);
1160 //-----------------------------------------------
1161 // Tpc Services Support Wheel
1162 //-----------------------------------------------
1177 gMC->Gsvolu("TSSW","PGON",idtmed[4],dm,10);
1179 // Tpc Services Wheel Cover
1184 gMC->Gsvolu("TSWC","PGON",idtmed[4],dm,10);
1186 // Tpc Service wheel Cover Empty space
1193 gMC->Gsvolu("TSCE","TRD1",idtmed[0],dm,4);
1195 // Tpc services Wheel Empty Spaces
1202 gMC->Gsvolu("TWES","TRD1",idtmed[0],dm,4);
1204 // Tpc Services Wheel Bars
1206 gMC->Gsvolu("TSWB","TRD1",idtmed[4],dm,0);
1216 gMC->Gsposp("TSWB",1,"TWES",0.,0.,-85.125,0,"ONLY",dm,4);
1221 gMC->Gsposp("TSWB",2,"TWES",0.,0.,85.125,0,"ONLY",dm,4);
1223 // TPc ELectronics - right now 30% X0 Si
1230 gMC->Gsvolu("TPEL","TRD1",idtmed[11],dm,4);
1231 gMC->Gspos("TPEL",1,"TWES",0.,0.,0.,0,"ONLY");
1233 //--------------------------------------------------------------------------
1235 //--------------------------------------------------------------------------
1237 // TPc Main Wheel - Al
1243 gMC->Gsvolu("TPMW","TUBE",idtmed[4],dm,3);
1245 //--------------------------------------------------------------------------
1246 // Tpc Empty Space for the Readout chambers
1247 //--------------------------------------------------------------------------
1251 Float_t dR = 0.5*(rUp-rLow);
1253 space= 1.5/cosAlpha; // wheel ribs are 3.0 cm wide
1255 dm[0]= rLow*tanAlpha-space;
1256 dm[1]= rUp*tanAlpha-space;
1260 gMC->Gsvolu("TESR","TRD1",idtmed[0],dm,4);
1264 gMC->Gspos("TIC1",1,"TESR",0.,0.75,-dR+23.97,0,"ONLY");
1268 gMC->Gspos("TOC1",1,"TESR",0.,0.75,dR-55.02,0,"ONLY");
1270 // Tpc Empty Space Bars - Al (daughters of TESR)
1274 gMC->Gsvolu("TESB","TRD1",idtmed[4],dm,0);
1278 dm[0]= rLow*tanAlpha-space;
1279 dm[1]= 88.7*tanAlpha-space;
1285 gMC->Gsposp("TESB",1,"TESR",0.,0.75,zBar,0,"ONLY",dm,4);
1289 dm[0]= 131.65*tanAlpha-space;
1290 dm[1]= 136.5*tanAlpha-space;
1293 zBar = -dR +131.65+dm[3]-rLow;
1295 gMC->Gsposp("TESB",2,"TESR",0.,0.75,zBar,0,"ONLY",dm,4);
1299 dm[0]= 240.4*tanAlpha-space;
1300 dm[1]= rUp*tanAlpha-space;
1305 gMC->Gsposp("TESB",3,"TESR",0.,0.75,zBar,0,"ONLY",dm,4);
1307 // positioning of the empty spaces into the main wheel
1309 Float_t rCenter,xc,yc;
1310 Float_t rInner,rOuter; // center of the inner and outer chamber
1318 for(Int_t ns=0; ns<nInnerSector;ns++){
1320 phi1 = ns * innerOpenAngle + innerAngleShift;
1321 phi1 *= kRaddeg; // in degrees
1323 phi1 = (Float_t)TMath::Nint(phi1) + 270.;
1325 if (phi1 > 360.) phi1 -= 360.;
1330 phi3 = ns * innerOpenAngle + innerAngleShift;
1331 phi3 *= kRaddeg; // in degrees
1333 phi3 = (Float_t)TMath::Nint(phi3);
1335 if(phi3 > 360.) phi3 -= 360.;
1339 // "holes"->End plate
1341 xc = rCenter*TMath::Cos(phi3*kDegrad);
1342 yc = rCenter*TMath::Sin(phi3*kDegrad);
1344 AliMatrix(idrotm[nRotMat], theta1, phi1, theta2, phi2, theta3, phi3);
1346 gMC->Gspos("TESR",ns+1,"TPMW",xc,yc,0.,idrotm[nRotMat],"ONLY");
1348 // TSCE->TSWC (services wheel volumes)
1350 xc = 166.142*TMath::Cos(phi3*kDegrad);
1351 yc = 166.142*TMath::Sin(phi3*kDegrad);
1353 gMC->Gspos("TSCE",ns+1,"TSWC",xc,yc,0.,idrotm[nRotMat],"ONLY");
1354 gMC->Gspos("TWES",ns+1,"TSSW",xc,yc,0.,idrotm[nRotMat],"ONLY");
1357 // readout chambers->TDGN (drift gas)
1359 xc = rInner*TMath::Cos(phi3*kDegrad);
1360 yc = rInner*TMath::Sin(phi3*kDegrad);
1362 gMC->Gspos("TIRC",ns+1,"TDGN",xc,yc,252.,idrotm[nRotMat],"ONLY");
1364 xc = rOuter*TMath::Cos(phi3*kDegrad);
1365 yc = rOuter*TMath::Sin(phi3*kDegrad);
1367 gMC->Gspos("TORC",ns+1,"TDGN",xc,yc,252.1,idrotm[nRotMat],"ONLY");
1371 theta2 = 0.; // reflection
1373 AliMatrix(idrotm[nRotMat], theta1, phi1, theta2, phi2, theta3, phi3);
1375 xc = rInner*TMath::Cos(phi3*kDegrad);
1376 yc = rInner*TMath::Sin(phi3*kDegrad);
1378 gMC->Gspos("TIRC",ns+nInnerSector+1,"TDGN",xc,yc,-252.,idrotm[nRotMat],"ONLY");
1380 xc = rOuter*TMath::Cos(phi3*kDegrad);
1381 yc = rOuter*TMath::Sin(phi3*kDegrad);
1383 gMC->Gspos("TORC",ns+nOuterSector+1,"TDGN",xc,yc,-252.1,idrotm[nRotMat],"ONLY");
1390 gMC->Gspos("TPMW",1,"TPC ",0.,0.,256.6,0,"ONLY");
1391 gMC->Gspos("TPMW",2,"TPC ",0.,0.,-256.6,idrotm[0],"ONLY");
1393 //---------------------------------------------------------
1394 // Tpc High Voltage Membrane - 100 microns of mylar
1395 //---------------------------------------------------------
1401 gMC->Gsvolu("THVM","TUBE",idtmed[8],dm,3);
1403 gMC->Gspos("THVM",1,"TDGN",0.,0.,0.,0,"ONLY");
1405 // Tpc High Voltage membrane Holders
1407 gMC->Gsvolu("THVH","TUBE",idtmed[4],dm,0);
1417 gMC->Gsposp("THVH",1,"TDGN",0.,0.,0.,0,"ONLY",dm,3);
1425 gMC->Gsposp("THVH",2,"TDGN",0.,0.,0.,0,"ONLY",dm,3);
1427 //----------------------------------------------------------
1428 // TPc Support Rods - MAKROLON
1429 //----------------------------------------------------------
1434 gMC->Gsvolu("TPSR","TUBE",idtmed[7],dm,0); // inner and outer rods differ
1437 for(Int_t nrod=0;nrod<18;nrod++){
1438 Float_t angle=innerOpenAngle*(Float_t)nrod;
1440 xc=81.5*TMath::Cos(angle);
1441 yc=81.5*TMath::Sin(angle);
1445 gMC->Gsposp("TPSR",nrod+1,"TDGN",xc,yc,126.9,0,"ONLY",dm,3);
1446 gMC->Gsposp("TPSR",nrod+19,"TDGN",xc,yc,-126.9,0,"ONLY",dm,3);
1450 xc=254.25*TMath::Cos(angle);
1451 yc=254.25*TMath::Sin(angle);
1453 // rod number 54 contans the HV cable
1456 gMC->Gsposp("TPSR",nrod+37,"TDGN",xc,yc,127.,0,"ONLY",dm,3);
1457 gMC->Gsposp("TPSR",nrod+54,"TDGN",xc,yc,-127.,0,"ONLY",dm,3);
1462 //----------------------------------------------------------
1463 // Tpc High Voltage Rod - MAKROLON + Copper cable
1464 //----------------------------------------------------------
1466 // rod with cable (Left)
1472 gMC->Gsvolu("THVL","TUBE",idtmed[7],dm,3);
1480 gMC->Gsvolu("THVC","TUBE",idtmed[10],dm,3);
1488 gMC->Gsvolu("THVE","TUBE",idtmed[1],dm,3);
1490 gMC->Gspos("THVC",1,"THVL",0.,0.,0.,0,"ONLY");
1491 gMC->Gspos("THVE",1,"THVL",0.,0.,0.,0,"ONLY");
1493 // rod without cable
1499 gMC->Gsvolu("THVR","TUBE",idtmed[7],dm,3);
1501 gMC->Gspos("THVL",1,"TDGN",xc,yc,-127.,0,"ONLY");
1502 gMC->Gspos("THVR",1,"TDGN",xc,yc,127.,0,"ONLY");
1504 gMC->Gspos("TDGN",1,"TPC ",0.,0.,0.,0,"ONLY");
1506 // services wheel cover -> wheel
1509 gMC->Gspos("TSWC",1,"TSSW",0.,0.,4.5,0,"ONLY");
1510 gMC->Gspos("TSWC",2,"TSSW",0.,0.,-4.5,0,"ONLY");
1513 // put the wheel into the TPC
1515 gMC->Gspos("TSSW",1,"TPC ",0.,0.,278.7,0,"ONLY");
1516 gMC->Gspos("TSSW",2,"TPC ",0.,0.,-278.7,0,"ONLY");
1520 gMC->Gsord("TPMW",6);
1521 gMC->Gsord("TSSW",6);
1522 gMC->Gsord("TSWC",6);
1524 // put the TPC into ALIC (main mother volume)
1526 gMC->Gspos("TPC ",1,"ALIC",0.,0.,0.,0,"ONLY");
1528 } // end of function
1531 //_____________________________________________________________________________
1532 void AliTPCv0::CreateMaterials()
1535 // Define materials for the TPC
1537 AliTPC::CreateMaterials();
1540 //_____________________________________________________________________________
1541 void AliTPCv0::DrawDetector()
1544 // Draw a shaded view of the Time Projection Chamber version 0
1547 // Set everything unseen
1548 gMC->Gsatt("*", "seen", -1);
1550 // Set ALIC mother transparent
1551 gMC->Gsatt("ALIC","SEEN",0);
1553 // Set the volumes visible
1554 gMC->Gsatt("TPC ","SEEN",0);
1555 gMC->Gsatt("TOIN","SEEN",1);
1556 gMC->Gsatt("TOIN","COLO",7);
1557 gMC->Gsatt("TOCV","SEEN",1);
1558 gMC->Gsatt("TOCV","COLO",4);
1559 gMC->Gsatt("TSA1","SEEN",0);
1560 gMC->Gsatt("TSA2","SEEN",0);
1561 gMC->Gsatt("TSA3","SEEN",0);
1562 gMC->Gsatt("TSA4","SEEN",0);
1563 gMC->Gsatt("TSA5","SEEN",0);
1564 gMC->Gsatt("TOFC","SEEN",1);
1565 gMC->Gsatt("TOFC","COLO",4);
1566 gMC->Gsatt("TSA6","SEEN",0);
1567 gMC->Gsatt("TSA7","SEEN",0);
1568 gMC->Gsatt("TSA8","SEEN",0);
1569 gMC->Gsatt("TIIN","SEEN",1);
1570 gMC->Gsatt("TIIN","COLO",7);
1571 gMC->Gsatt("TII1","SEEN",0);
1572 gMC->Gsatt("TIFC","SEEN",1);
1573 gMC->Gsatt("TIFC","COLO",4);
1574 gMC->Gsatt("TSA9","SEEN",0);
1575 gMC->Gsatt("TS10","SEEN",0);
1576 gMC->Gsatt("TS11","SEEN",0);
1577 gMC->Gsatt("TS12","SEEN",0);
1578 gMC->Gsatt("TS13","SEEN",0);
1579 gMC->Gsatt("TS14","SEEN",0);
1580 gMC->Gsatt("TICC","SEEN",0);
1581 gMC->Gsatt("TICM","SEEN",0);
1582 gMC->Gsatt("TS15","SEEN",0);
1583 gMC->Gsatt("TS16","SEEN",0);
1584 gMC->Gsatt("TS17","SEEN",0);
1585 gMC->Gsatt("TS18","SEEN",0);
1586 gMC->Gsatt("TS19","SEEN",0);
1587 gMC->Gsatt("TPJ1","SEEN",0);
1588 gMC->Gsatt("TPJ2","SEEN",0);
1589 gMC->Gsatt("TICS","SEEN",0);
1590 gMC->Gsatt("TDGN","SEEN",0);
1591 gMC->Gsatt("TIRC","SEEN",0);
1592 gMC->Gsatt("TIC1","SEEN",1);
1593 gMC->Gsatt("TIPP","SEEN",0);
1594 gMC->Gsatt("TIC3","SEEN",0);
1595 gMC->Gsatt("TRCE","SEEN",0);
1596 gMC->Gsatt("TPSC","SEEN",0);
1597 gMC->Gsatt("TPCC","SEEN",0);
1598 gMC->Gsatt("TORC","SEEN",0);
1599 gMC->Gsatt("TOPP","SEEN",0);
1600 gMC->Gsatt("TOC3","SEEN",0);
1601 gMC->Gsatt("TOC1","SEEN",1);
1602 gMC->Gsatt("TSSW","SEEN",1);
1603 gMC->Gsatt("TSWC","SEEN",1);
1604 gMC->Gsatt("TSSW","COLO",3);
1605 gMC->Gsatt("TSWC","COLO",3);
1606 gMC->Gsatt("TSCE","COLO",6);
1607 gMC->Gsatt("TSCE","SEEN",1);
1608 gMC->Gsatt("TWES","SEEN",0);
1609 gMC->Gsatt("TSWB","SEEN",0);
1610 gMC->Gsatt("TPEL","SEEN",0);
1611 gMC->Gsatt("TPMW","SEEN",1);
1612 gMC->Gsatt("TESR","SEEN",1);
1613 gMC->Gsatt("TPMW","COLO",12);
1614 gMC->Gsatt("TIC1","COLO",5);
1615 gMC->Gsatt("TOC1","COLO",5);
1616 gMC->Gsatt("TESB","SEEN",0);
1617 gMC->Gsatt("THVM","SEEN",1);
1618 gMC->Gsatt("THVM","COLO",11);
1619 gMC->Gsatt("THVH","SEEN",0);
1620 gMC->Gsatt("TPSR","SEEN",0);
1621 gMC->Gsatt("THVL","SEEN",0);
1622 gMC->Gsatt("THVC","SEEN",0);
1623 gMC->Gsatt("THVE","SEEN",0);
1624 gMC->Gsatt("THVR","SEEN",0);
1627 gMC->Gdopt("hide", "on");
1628 gMC->Gdopt("shad", "on");
1629 gMC->Gsatt("*", "fill", 7);
1630 gMC->SetClipBox(".");
1631 gMC->SetClipBox("TPMW",-300,300,-300,300,254.,270.);
1632 gMC->SetClipBox("TESR",-300,300,-300,300,254.,270.);
1633 gMC->SetClipBox("TSSW",-300,300,-300,300,283.,284.);
1634 gMC->SetClipBox("TSWC",-300,300,-300,300,283.,284.);
1635 gMC->SetClipBox("*", 0, 300, -300, 300, -290, 290);
1636 gMC->DefaultRange();
1637 gMC->Gdraw("alic", 40, 30, 0, 12, 9.5, .025, .025);
1638 gMC->Gdhead(1111, "Time Projection Chamber");
1639 gMC->Gdman(18, 4, "MAN");
1640 gMC->Gdopt("hide","off");
1643 //_____________________________________________________________________________
1644 void AliTPCv0::Init()
1647 // Initialise Time Projection Chamber version 0
1649 printf("TPC version 0 initialized\n");
1652 //_____________________________________________________________________________
1653 void AliTPCv0::StepManager()
1656 // Procedure called at each step in the TPC