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 1.28 2002/10/23 07:17:34 alibrary
19 Introducing Riostream.h
21 Revision 1.27 2001/06/12 07:07:41 kowal2
22 New files for folder and stack
24 Revision 1.26 2001/05/08 16:03:06 kowal2
25 Geometry update according to the latest technical spec.
27 Revision 1.25 2001/04/27 15:23:06 kowal2
28 Correct materian in the central part of the inner containment vessel
30 Revision 1.24 2001/04/26 06:15:11 kowal2
31 Corrected bug in the inner containment vessel (cones)
33 Revision 1.23 2001/04/24 11:17:33 kowal2
36 Revision 1.22 2001/03/13 13:07:33 kowal2
37 Corrected bug in the TPC mother volume geometry.
40 Revision 1.21 2000/11/14 10:48:57 kowal2
41 Correct material used for TSA4. Thanks to J. Barbosa.
43 Revision 1.20 2000/11/06 17:24:10 kowal2
44 Corrected bug in the outer containment vessel and
45 the outer field cage geometry.
48 Revision 1.19 2000/11/02 16:55:24 kowal2
49 Corrected bug in the inner containment vessel geometry.
52 Revision 1.18 2000/11/02 07:24:11 kowal2
53 Correction in the TPC geometry.
54 Changes due to the new hit structure.
56 Revision 1.17 2000/07/10 20:57:39 hristov
57 Update of TPC code and macros by M.Kowalski
59 Revision 1.16 2000/06/30 12:07:50 kowal2
60 Updated from the TPC-PreRelease branch
62 Revision 1.15.2.4 2000/06/26 07:39:42 kowal2
63 Changes to obey the coding rules
65 Revision 1.15.2.3 2000/06/25 08:38:41 kowal2
66 Splitted from AliTPCtracking
68 Revision 1.15.2.2 2000/06/16 12:58:13 kowal2
69 Changed parameter settings
71 Revision 1.15.2.1 2000/06/09 07:15:07 kowal2
73 Defaults loaded automatically (hard-wired)
74 Optional parameters can be set via macro called in the constructor
76 Revision 1.15 2000/05/15 10:00:30 kowal2
77 Corrected bug in the TPC geometry, thanks to Ivana Hrivnacova
79 Revision 1.14 2000/04/17 09:37:33 kowal2
80 removed obsolete AliTPCDigitsDisplay.C
82 Revision 1.13.8.2 2000/04/10 08:33:44 kowal2
84 Updated readout chambers
86 Revision 1.13.8.1 2000/04/10 07:56:53 kowal2
87 Not used anymore - removed
89 Revision 1.13 1999/11/04 17:28:06 fca
90 Correct barrel part of HV Degrader
92 Revision 1.12 1999/10/08 06:27:23 fca
93 Corrected bug in the HV degrader geometry, thanks to G.Tabary
95 Revision 1.11 1999/10/04 13:39:54 fca
96 Correct array index problem
98 Revision 1.10 1999/09/29 09:24:34 fca
99 Introduction of the Copyright and cvs Log
104 ///////////////////////////////////////////////////////////////////////////////
106 // Time Projection Chamber version 0 -- "coarse" TPC //
110 <img src="picts/AliTPCv0Class.gif">
115 ///////////////////////////////////////////////////////////////////////////////
118 #include <TGeometry.h>
121 #include "AliTPCv0.h"
123 #include <Riostream.h>
124 #include <Riostream.h>
125 #include "AliConst.h"
127 #include "AliTPCParamSR.h"
128 #include "AliTPCDigitsArray.h"
132 //_____________________________________________________________________________
133 AliTPCv0::AliTPCv0(const char *name, const char *title)
137 // Standard creator for TPC version 0
140 SetGasMixt(2,20,10,-1,0.9,0.1,0.);
143 fTPCParam->Write(fTPCParam->GetTitle());
146 //_____________________________________________________________________________
147 void AliTPCv0::CreateGeometry()
151 // Creation of the TPC version 0, i.e. no sensitive volumes,
152 // only the material distribution
156 <img src="picts/AliTPC.gif">
161 <img src="picts/AliTPCv0Tree.gif">
165 //---------------------------------------------------------------
168 // Origin: Marek Kowalski, INP Cracow
169 // Marek.Kowalski@ifj.edu.pl
170 //---------------------------------------------------------------
173 Int_t *idtmed = fIdtmed->GetArray(); // TPC media
175 Int_t idrotm[120]; // rotation matrices
177 Int_t nRotMat = 0; // actual number of rotation matrices
181 // Mother volume TPC (Air) - all volumes will be positioned in it
236 gMC->Gsvolu("TPC ","PCON",idtmed[0],dm,27);
240 //-------------------------------------------------------------------
241 // Tpc Outer INsulator (CO2) - contains cont. vessel and field cage
242 //-------------------------------------------------------------------
284 gMC->Gsvolu("TOIN","PCON",idtmed[3],dm,21);
286 //----------------------------------------------------------------
287 // Tpc Outer Contaiment Vessel
288 // mother volume - Al, daughters - composite (sandwich)
289 //----------------------------------------------------------------
331 gMC->Gsvolu("TOCV","PCON",idtmed[4],dm,21);
333 // Daughter volumes - sandwich
335 // Tpc SAndwich 1 - Al
341 gMC->Gsvolu("TSA1","TUBE",idtmed[4],dm,3);
343 // Tpc SAndwich 2 - epoxy glue (I use Lexan)
348 gMC->Gsvolu("TSA2","TUBE",idtmed[14],dm,3);
350 // Tpc SAndwich 3 - Tedlar
355 gMC->Gsvolu("TSA3","TUBE",idtmed[9],dm,3);
358 // Tpc SAndwich 4 - fiber glass (G10)
363 gMC->Gsvolu("TSA4","TUBE",idtmed[12],dm,3);
365 // Tpc SAndwich 5 - NOMEX honeycomb
370 gMC->Gsvolu("TSA5","TUBE",idtmed[6],dm,3);
372 // 5->4->3->2->1->TCOV
375 gMC->Gspos("TSA5",1,"TSA4",0.,0.,0.,0,"ONLY");
376 gMC->Gspos("TSA4",1,"TSA3",0.,0.,0.,0,"ONLY");
377 gMC->Gspos("TSA3",1,"TSA2",0.,0.,0.,0,"ONLY");
378 gMC->Gspos("TSA2",1,"TSA1",0.,0.,0.,0,"ONLY");
380 gMC->Gspos("TSA1",1,"TOCV",0.,0.,3.,0,"ONLY");
384 gMC->Gspos("TOCV",1,"TOIN",0.,0.,0.,0,"ONLY");
386 //-------------------------------------------------------
387 // Tpc Outer Field Cage
388 // mother volume - Al, daughters - composite (sandwich)
389 //-------------------------------------------------------
431 gMC->Gsvolu("TOFC","PCON",idtmed[4],dm,21);
435 // Tpc SAndwich 6 - Tedlar
441 gMC->Gsvolu("TSA6","TUBE",idtmed[9],dm,3);
443 // Tpc SAndwich 7 - fiber glass
448 gMC->Gsvolu("TSA7","TUBE",idtmed[12],dm,3);
451 // Tpc SAndwich 8 - NOMEX
456 gMC->Gsvolu("TSA8","TUBE",idtmed[6],dm,3);
460 gMC->Gspos("TSA8",1,"TSA7",0.,0.,0.,0,"ONLY");
461 gMC->Gspos("TSA7",1,"TSA6",0.,0.,0.,0,"ONLY");
462 gMC->Gspos("TSA6",1,"TOFC",0.,0.,0.,0,"ONLY");
466 gMC->Gspos("TOFC",1,"TOIN",0.,0.,0.,0,"ONLY");
470 gMC->Gspos("TOIN",1,"TPC ",0.,0.,0.,0,"ONLY");
474 //--------------------------------------------------------------------
475 // Tpc Inner INsulator (CO2) - inner f.c. will be placed there
476 // Inner containment vessel will be placed directly in the TPC
477 //--------------------------------------------------------------------
507 gMC->Gsvolu("TIIN","PCON",idtmed[3],dm,15);
509 // the middle part of the F.C. is thinner - carve out the strip - Ne-CO2
515 gMC->Gsvolu("TII1","TUBE",idtmed[1],dm,3);
517 gMC->Gspos("TII1",1,"TIIN",0.,0.,0.,0,"ONLY");
519 //-----------------------------------------------------
520 // Tpc Inner Field Cage
521 // mother volume - Al, daughters - composite (sandwich)
522 //------------------------------------------------------
588 gMC->Gsvolu("TIFC","PCON",idtmed[4],dm,33);
590 // daughter volumes - central part
592 // Tpc Sandwich 9 -Tedlar
598 gMC->Gsvolu("TSA9","TUBE",idtmed[9],dm,3);
600 // Tpc Sandwich 10 - fiber glass (G10)
605 gMC->Gsvolu("TS10","TUBE",idtmed[12],dm,3);
607 // Tpc Sandwich 11 - NOMEX
612 gMC->Gsvolu("TS11","TUBE",idtmed[6],dm,3);
616 gMC->Gspos("TS11",1,"TS10",0.,0.,0.,0,"ONLY");
617 gMC->Gspos("TS10",1,"TSA9",0.,0.,0.,0,"ONLY");
619 gMC->Gspos("TSA9",1,"TIFC",0.,0.,0.,0,"ONLY");
621 // daughter volumes - outer parts (reinforced)
623 // Tpc Sandwich 12 -Tedlar
629 gMC->Gsvolu("TS12","TUBE",idtmed[9],dm,3);
631 // Tpc Sandwich 13 - fiber glass (G10)
636 gMC->Gsvolu("TS13","TUBE",idtmed[12],dm,3);
638 // Tpc Sandwich 14 - NOMEX
643 gMC->Gsvolu("TS14","TUBE",idtmed[6],dm,3);
647 gMC->Gspos("TS14",1,"TS13",0.,0.,0.,0,"ONLY");
648 gMC->Gspos("TS13",1,"TS12",0.,0.,0.,0,"ONLY");
650 gMC->Gspos("TS12",1,"TIFC",0.,0.,170.05,0,"ONLY");
651 gMC->Gspos("TS12",2,"TIFC",0.,0.,-170.05,0,"ONLY");
653 // place this inside the inner insulator
655 gMC->Gspos("TIFC",1,"TIIN",0.,0.,0.,0,"ONLY");
657 // and now in the TPC...
659 gMC->Gspos("TIIN",1,"TPC ",0.,0.,0.,0,"ONLY");
661 //---------------------------------------------------------
662 // Tpc Inner Containment vessel - Cones
663 //---------------------------------------------------------
717 gMC->Gsvolu("TICC","PCON",idtmed[4],dm,27);
719 Float_t phi1,phi2,phi3,theta1,theta2,theta3; // rotation angles
730 AliMatrix(idrotm[nRotMat], theta1, phi1, theta2, phi2, theta3, phi3);
732 gMC->Gspos("TICC",1,"TPC ",0.,0.,0.,0,"ONLY");
733 gMC->Gspos("TICC",2,"TPC ",0.,0.,0.,idrotm[nRotMat],"ONLY");
736 //---------------------------------------------------------
737 // Tpc Inner Containment vessel - Middle part -Al
738 //---------------------------------------------------------
780 gMC->Gsvolu("TICM","PCON",idtmed[4],dm,21);
782 // Tpc Sandwich 15 - Al
788 gMC->Gsvolu("TS15","TUBE",idtmed[4],dm,3);
790 // Tpc Sandwich 16 - epoxy glue
795 gMC->Gsvolu("TS16","TUBE",idtmed[14],dm,3);
797 // Tpc Sandwich 17 - Tedlar
802 gMC->Gsvolu("TS17","TUBE",idtmed[9],dm,3);
804 // Tpc Sandwich 18 - carbon fiber
809 gMC->Gsvolu("TS18","TUBE",idtmed[15],dm,3);
811 // Tpc Sandwich 19 - Nomex
816 gMC->Gsvolu("TS19","TUBE",idtmed[6],dm,3);
818 // 19->18->17->16->15-> TICM
820 gMC->Gspos("TS19",1,"TS18",0.,0.,0.,0,"ONLY");
821 gMC->Gspos("TS18",1,"TS17",0.,0.,0.,0,"ONLY");
822 gMC->Gspos("TS17",1,"TS16",0.,0.,0.,0,"ONLY");
823 gMC->Gspos("TS16",1,"TS15",0.,0.,0.,0,"ONLY");
825 gMC->Gspos("TS15",1,"TICM ",0.,0.,0.,0,"ONLY");
828 // TPc inner cont. vessel Joints
834 gMC->Gsvolu("TPJ1","TUBE",idtmed[4],dm,3);
836 gMC->Gspos("TPJ1",1,"TPC ",0.,0.,72.3,0,"ONLY");
837 gMC->Gspos("TPJ1",2,"TPC ",0.,0.,-72.3,0,"ONLY");
869 gMC->Gsvolu("TPJ2","PCON",idtmed[4],dm,15);
871 gMC->Gspos("TPJ2",1,"TPC ",0.,0.,0.,0,"ONLY");
872 gMC->Gspos("TPJ2",2,"TPC ",0.,0.,0.,idrotm[nRotMat],"ONLY");
876 // Tpc Inner Containment vessel Seal (Viton, I use Lexan for a time being)
882 gMC->Gsvolu("TICS","TUBE",idtmed[14],dm,3);
884 gMC->Gspos("TICS",1,"TPC ",0.,0.,71.7,0,"ONLY");
885 gMC->Gspos("TICS",2,"TPC ",0.,0.,-71.7,0,"ONLY");
889 gMC->Gspos("TICM",1,"TPC ",0.,0.,0.,0,"ONLY");
893 nRotMat++; // prepare for the next rotation matrix
895 //---------------------------------------------------------
896 // Tpc Dift Gas volume Nonsensitive (Ne-CO2 90/10)
897 // and its daughters (HV membrane, rods, readout chambers)
898 //---------------------------------------------------------
904 gMC->Gsvolu("TDGN","TUBE",idtmed[1],dm,3);
906 // sector opening angles
908 Float_t innerOpenAngle = fTPCParam->GetInnerAngle();
910 // sector angle shift
912 Float_t innerAngleShift = fTPCParam->GetInnerAngleShift();
916 Int_t nInnerSector = fTPCParam->GetNInnerSector()/2;
917 Int_t nOuterSector = fTPCParam->GetNOuterSector()/2;
919 // All above parameters are identical for inner and outer
920 // sectors. The distinction is kept for the historical reasons
921 // and eventually will disappear.
923 Float_t tanAlpha = TMath::Tan(0.5*innerOpenAngle);
924 Float_t cosAlpha = TMath::Sqrt(1.+tanAlpha*tanAlpha);
927 //-------------------------------------------------------------------------
928 // Tpc Inner Readout Chambers
929 //-------------------------------------------------------------------------
933 dm[2]= 1.6; // thickness
936 gMC->Gsvolu("TIRC","TRD1",idtmed[4],dm,4);
938 // this volume will be positioned in the empty space
939 // of the end-cap to avoid overlaps
946 gMC->Gsvolu("TIC1","TRD1",idtmed[4],dm,4);
949 //------------------------------------------------
950 // Tpc Inner readout chamber Pad Plane
951 //------------------------------------------------
958 gMC->Gsvolu("TIPP","TRD1",idtmed[12],dm,4);
962 dm[0] -= 1.218511934;
963 dm[1] -= 1.218511934;
966 gMC->Gsvolu("TIC3","TRD1",idtmed[1],dm,4);
968 gMC->Gspos("TIC3",1,"TIPP",0.,0.15,0.,0,"ONLY");
970 gMC->Gspos("TIPP",1,"TIRC",0.,1.1,0.,0,"ONLY");
973 //----------------------------------------------
974 // Tpc Readout Chambers Empty spaces - for both
975 // inner and outer sectors
976 //----------------------------------------------
978 gMC->Gsvolu("TRCE","TRD1",idtmed[0],dm,0);
980 // Inner sector - 4 spaces
991 space = rr*tanAlpha-dm[0];
993 for(Int_t nsLow=0;nsLow<4;nsLow++){
996 dm[1]= rr*tanAlpha - space;
1000 gMC->Gsposp("TRCE",nsLow+1,"TIRC",0.,-0.8,zz,0,"ONLY",dm,4);
1006 gMC->Gsposp("TRCE",nsLow+5,"TIC1",0.,1.05,zz-2.1,0,"ONLY",dm,4);
1009 dm[0] = rr*tanAlpha - space;
1015 // dm[1] - this is the dm[1] from the previous TRCE
1019 gMC->Gsposp("TRCE",9,"TIC1",0.,-1.2,0.,0,"ONLY",dm,4);
1022 // TPc Space for Connectors
1029 gMC->Gsvolu("TPSC","BOX ",idtmed[0],dm,3);
1037 gMC->Gsvolu("TPCC","BOX ",idtmed[13],dm,3);
1039 gMC->Gspos("TPCC",1,"TPSC",0.,0.15,0.,0,"ONLY");
1047 // inner part of the inner sector - 2 x 20 holes
1049 astep = 20.00096874/19.;
1051 alpha = 10.00048437-astep;
1063 for(ncon=0;ncon<20;ncon++){
1069 phi3 = (alpha>0) ? 0. : 180.;
1070 theta3 = TMath::Abs(alpha);
1072 AliMatrix(idrotm[nRotMat], theta1, phi1, theta2, phi2, theta3, phi3);
1076 gMC->Gspos("TPSC",ncon+1,"TIRC",x1,0.3,-12.7875,idrotm[nRotMat],"ONLY");
1077 gMC->Gspos("TPSC",ncon+21,"TIRC",x2,0.3,-2.8625,idrotm[nRotMat],"ONLY");
1088 // outer part of the inner sector - 2 x 25 holes
1090 astep = 20.00096874/24.;
1091 alpha = 10.00048437-astep;
1099 for(ncon=0;ncon<25;ncon++){
1105 phi3 = (alpha>0) ? 0. : 180.;
1106 theta3 = TMath::Abs(alpha);
1108 AliMatrix(idrotm[nRotMat], theta1, phi1, theta2, phi2, theta3, phi3);
1112 gMC->Gspos("TPSC",ncon+41,"TIRC",x1,0.3,7.0625,idrotm[nRotMat],"ONLY");
1113 gMC->Gspos("TPSC",ncon+66,"TIRC",x2,0.3,16.9875,idrotm[nRotMat],"ONLY");
1124 //--------------------------------------------------------------------------
1125 // TPC Outer Readout Chambers
1126 // this is NOT a final design
1127 //--------------------------------------------------------------------------
1131 dm[2]= 1.5; //thickness
1134 gMC->Gsvolu("TORC","TRD1",idtmed[4],dm,4);
1136 //------------------------------------------------
1137 // Tpc Outer readout chamber Pad Plane
1138 //------------------------------------------------
1142 gMC->Gsvolu("TOPP","TRD1",idtmed[12],dm,4);
1144 dm[0] -= 1.218511934;
1145 dm[1] -= 1.218511934;
1148 gMC->Gsvolu("TOC3","TRD1",idtmed[1],dm,4);
1150 gMC->Gspos("TOC3",1,"TOPP",0.,0.15,0.,0,"ONLY");
1152 gMC->Gspos("TOPP",1,"TORC",0.,1.0,0.,0,"ONLY");
1161 gMC->Gsposp("TRCE",10,"TORC",0.,-0.8,-2.15,0,"ONLY",dm,4);
1168 gMC->Gsvolu("TOC1","TRD1",idtmed[4],dm,4);
1175 gMC->Gsposp("TRCE",11,"TOC1",0.,0.,0.,0,"ONLY",dm,4);
1177 //-----------------------------------------------
1178 // Tpc Services Support Wheel
1179 //-----------------------------------------------
1194 gMC->Gsvolu("TSSW","PGON",idtmed[4],dm,10);
1196 // Tpc Services Wheel Cover
1201 gMC->Gsvolu("TSWC","PGON",idtmed[4],dm,10);
1203 // Tpc Service wheel Cover Empty space
1210 gMC->Gsvolu("TSCE","TRD1",idtmed[0],dm,4);
1212 // Tpc services Wheel Empty Spaces
1219 gMC->Gsvolu("TWES","TRD1",idtmed[0],dm,4);
1221 // Tpc Services Wheel Bars
1223 gMC->Gsvolu("TSWB","TRD1",idtmed[4],dm,0);
1233 gMC->Gsposp("TSWB",1,"TWES",0.,0.,-85.125,0,"ONLY",dm,4);
1238 gMC->Gsposp("TSWB",2,"TWES",0.,0.,85.125,0,"ONLY",dm,4);
1240 // TPc ELectronics - right now 30% X0 Si
1247 gMC->Gsvolu("TPEL","TRD1",idtmed[11],dm,4);
1248 gMC->Gspos("TPEL",1,"TWES",0.,0.,0.,0,"ONLY");
1250 //--------------------------------------------------------------------------
1252 //--------------------------------------------------------------------------
1254 // TPc Main Wheel - Al
1260 gMC->Gsvolu("TPMW","TUBE",idtmed[4],dm,3);
1262 //--------------------------------------------------------------------------
1263 // Tpc Empty Space for the Readout chambers
1264 //--------------------------------------------------------------------------
1268 Float_t dR = 0.5*(rUp-rLow);
1270 space= 1.5/cosAlpha; // wheel ribs are 3.0 cm wide
1272 dm[0]= rLow*tanAlpha-space;
1273 dm[1]= rUp*tanAlpha-space;
1277 gMC->Gsvolu("TESR","TRD1",idtmed[0],dm,4);
1281 gMC->Gspos("TIC1",1,"TESR",0.,0.75,-dR+23.97,0,"ONLY");
1285 gMC->Gspos("TOC1",1,"TESR",0.,0.75,dR-55.02,0,"ONLY");
1287 // Tpc Empty Space Bars - Al (daughters of TESR)
1291 gMC->Gsvolu("TESB","TRD1",idtmed[4],dm,0);
1295 dm[0]= rLow*tanAlpha-space;
1296 dm[1]= 88.7*tanAlpha-space;
1302 gMC->Gsposp("TESB",1,"TESR",0.,0.75,zBar,0,"ONLY",dm,4);
1306 dm[0]= 131.65*tanAlpha-space;
1307 dm[1]= 136.5*tanAlpha-space;
1310 zBar = -dR +131.65+dm[3]-rLow;
1312 gMC->Gsposp("TESB",2,"TESR",0.,0.75,zBar,0,"ONLY",dm,4);
1316 dm[0]= 240.4*tanAlpha-space;
1317 dm[1]= rUp*tanAlpha-space;
1322 gMC->Gsposp("TESB",3,"TESR",0.,0.75,zBar,0,"ONLY",dm,4);
1324 // positioning of the empty spaces into the main wheel
1326 Float_t rCenter,xc,yc;
1327 Float_t rInner,rOuter; // center of the inner and outer chamber
1335 for(Int_t ns=0; ns<nInnerSector;ns++){
1337 phi1 = ns * innerOpenAngle + innerAngleShift;
1338 phi1 *= kRaddeg; // in degrees
1340 phi1 = (Float_t)TMath::Nint(phi1) + 270.;
1342 if (phi1 > 360.) phi1 -= 360.;
1347 phi3 = ns * innerOpenAngle + innerAngleShift;
1348 phi3 *= kRaddeg; // in degrees
1350 phi3 = (Float_t)TMath::Nint(phi3);
1352 if(phi3 > 360.) phi3 -= 360.;
1356 // "holes"->End plate
1358 xc = rCenter*TMath::Cos(phi3*kDegrad);
1359 yc = rCenter*TMath::Sin(phi3*kDegrad);
1361 AliMatrix(idrotm[nRotMat], theta1, phi1, theta2, phi2, theta3, phi3);
1363 gMC->Gspos("TESR",ns+1,"TPMW",xc,yc,0.,idrotm[nRotMat],"ONLY");
1365 // TSCE->TSWC (services wheel volumes)
1367 xc = 166.142*TMath::Cos(phi3*kDegrad);
1368 yc = 166.142*TMath::Sin(phi3*kDegrad);
1370 gMC->Gspos("TSCE",ns+1,"TSWC",xc,yc,0.,idrotm[nRotMat],"ONLY");
1371 gMC->Gspos("TWES",ns+1,"TSSW",xc,yc,0.,idrotm[nRotMat],"ONLY");
1374 // readout chambers->TDGN (drift gas)
1376 xc = rInner*TMath::Cos(phi3*kDegrad);
1377 yc = rInner*TMath::Sin(phi3*kDegrad);
1379 gMC->Gspos("TIRC",ns+1,"TDGN",xc,yc,252.,idrotm[nRotMat],"ONLY");
1381 xc = rOuter*TMath::Cos(phi3*kDegrad);
1382 yc = rOuter*TMath::Sin(phi3*kDegrad);
1384 gMC->Gspos("TORC",ns+1,"TDGN",xc,yc,252.1,idrotm[nRotMat],"ONLY");
1388 theta2 = 0.; // reflection
1390 AliMatrix(idrotm[nRotMat], theta1, phi1, theta2, phi2, theta3, phi3);
1392 xc = rInner*TMath::Cos(phi3*kDegrad);
1393 yc = rInner*TMath::Sin(phi3*kDegrad);
1395 gMC->Gspos("TIRC",ns+nInnerSector+1,"TDGN",xc,yc,-252.,idrotm[nRotMat],"ONLY");
1397 xc = rOuter*TMath::Cos(phi3*kDegrad);
1398 yc = rOuter*TMath::Sin(phi3*kDegrad);
1400 gMC->Gspos("TORC",ns+nOuterSector+1,"TDGN",xc,yc,-252.1,idrotm[nRotMat],"ONLY");
1407 gMC->Gspos("TPMW",1,"TPC ",0.,0.,256.6,0,"ONLY");
1408 gMC->Gspos("TPMW",2,"TPC ",0.,0.,-256.6,idrotm[0],"ONLY");
1410 //---------------------------------------------------------
1411 // Tpc High Voltage Membrane - 100 microns of mylar
1412 //---------------------------------------------------------
1418 gMC->Gsvolu("THVM","TUBE",idtmed[8],dm,3);
1420 gMC->Gspos("THVM",1,"TDGN",0.,0.,0.,0,"ONLY");
1422 // Tpc High Voltage membrane Holders
1424 gMC->Gsvolu("THVH","TUBE",idtmed[4],dm,0);
1434 gMC->Gsposp("THVH",1,"TDGN",0.,0.,0.,0,"ONLY",dm,3);
1442 gMC->Gsposp("THVH",2,"TDGN",0.,0.,0.,0,"ONLY",dm,3);
1444 //----------------------------------------------------------
1445 // TPc Support Rods - MAKROLON
1446 //----------------------------------------------------------
1451 gMC->Gsvolu("TPSR","TUBE",idtmed[7],dm,0); // inner and outer rods differ
1454 for(Int_t nrod=0;nrod<18;nrod++){
1455 Float_t angle=innerOpenAngle*(Float_t)nrod;
1457 xc=81.5*TMath::Cos(angle);
1458 yc=81.5*TMath::Sin(angle);
1462 gMC->Gsposp("TPSR",nrod+1,"TDGN",xc,yc,126.9,0,"ONLY",dm,3);
1463 gMC->Gsposp("TPSR",nrod+19,"TDGN",xc,yc,-126.9,0,"ONLY",dm,3);
1467 xc=254.25*TMath::Cos(angle);
1468 yc=254.25*TMath::Sin(angle);
1470 // rod number 54 contans the HV cable
1473 gMC->Gsposp("TPSR",nrod+37,"TDGN",xc,yc,127.,0,"ONLY",dm,3);
1474 gMC->Gsposp("TPSR",nrod+54,"TDGN",xc,yc,-127.,0,"ONLY",dm,3);
1479 //----------------------------------------------------------
1480 // Tpc High Voltage Rod - MAKROLON + Copper cable
1481 //----------------------------------------------------------
1483 // rod with cable (Left)
1489 gMC->Gsvolu("THVL","TUBE",idtmed[7],dm,3);
1497 gMC->Gsvolu("THVC","TUBE",idtmed[10],dm,3);
1505 gMC->Gsvolu("THVE","TUBE",idtmed[1],dm,3);
1507 gMC->Gspos("THVC",1,"THVL",0.,0.,0.,0,"ONLY");
1508 gMC->Gspos("THVE",1,"THVL",0.,0.,0.,0,"ONLY");
1510 // rod without cable
1516 gMC->Gsvolu("THVR","TUBE",idtmed[7],dm,3);
1518 gMC->Gspos("THVL",1,"TDGN",xc,yc,-127.,0,"ONLY");
1519 gMC->Gspos("THVR",1,"TDGN",xc,yc,127.,0,"ONLY");
1521 gMC->Gspos("TDGN",1,"TPC ",0.,0.,0.,0,"ONLY");
1523 // services wheel cover -> wheel
1526 gMC->Gspos("TSWC",1,"TSSW",0.,0.,4.5,0,"ONLY");
1527 gMC->Gspos("TSWC",2,"TSSW",0.,0.,-4.5,0,"ONLY");
1530 // put the wheel into the TPC
1532 gMC->Gspos("TSSW",1,"TPC ",0.,0.,278.7,0,"ONLY");
1533 gMC->Gspos("TSSW",2,"TPC ",0.,0.,-278.7,0,"ONLY");
1537 gMC->Gsord("TPMW",6);
1538 gMC->Gsord("TSSW",6);
1539 gMC->Gsord("TSWC",6);
1541 // put the TPC into ALIC (main mother volume)
1543 gMC->Gspos("TPC ",1,"ALIC",0.,0.,0.,0,"ONLY");
1545 } // end of function
1548 //_____________________________________________________________________________
1549 void AliTPCv0::CreateMaterials()
1552 // Define materials for the TPC
1554 AliTPC::CreateMaterials();
1557 //_____________________________________________________________________________
1558 void AliTPCv0::DrawDetector()
1561 // Draw a shaded view of the Time Projection Chamber version 0
1564 // Set everything unseen
1565 gMC->Gsatt("*", "seen", -1);
1567 // Set ALIC mother transparent
1568 gMC->Gsatt("ALIC","SEEN",0);
1570 // Set the volumes visible
1571 gMC->Gsatt("TPC ","SEEN",0);
1572 gMC->Gsatt("TOIN","SEEN",1);
1573 gMC->Gsatt("TOIN","COLO",7);
1574 gMC->Gsatt("TOCV","SEEN",1);
1575 gMC->Gsatt("TOCV","COLO",4);
1576 gMC->Gsatt("TSA1","SEEN",0);
1577 gMC->Gsatt("TSA2","SEEN",0);
1578 gMC->Gsatt("TSA3","SEEN",0);
1579 gMC->Gsatt("TSA4","SEEN",0);
1580 gMC->Gsatt("TSA5","SEEN",0);
1581 gMC->Gsatt("TOFC","SEEN",1);
1582 gMC->Gsatt("TOFC","COLO",4);
1583 gMC->Gsatt("TSA6","SEEN",0);
1584 gMC->Gsatt("TSA7","SEEN",0);
1585 gMC->Gsatt("TSA8","SEEN",0);
1586 gMC->Gsatt("TIIN","SEEN",1);
1587 gMC->Gsatt("TIIN","COLO",7);
1588 gMC->Gsatt("TII1","SEEN",0);
1589 gMC->Gsatt("TIFC","SEEN",1);
1590 gMC->Gsatt("TIFC","COLO",4);
1591 gMC->Gsatt("TSA9","SEEN",0);
1592 gMC->Gsatt("TS10","SEEN",0);
1593 gMC->Gsatt("TS11","SEEN",0);
1594 gMC->Gsatt("TS12","SEEN",0);
1595 gMC->Gsatt("TS13","SEEN",0);
1596 gMC->Gsatt("TS14","SEEN",0);
1597 gMC->Gsatt("TICC","SEEN",0);
1598 gMC->Gsatt("TICM","SEEN",0);
1599 gMC->Gsatt("TS15","SEEN",0);
1600 gMC->Gsatt("TS16","SEEN",0);
1601 gMC->Gsatt("TS17","SEEN",0);
1602 gMC->Gsatt("TS18","SEEN",0);
1603 gMC->Gsatt("TS19","SEEN",0);
1604 gMC->Gsatt("TPJ1","SEEN",0);
1605 gMC->Gsatt("TPJ2","SEEN",0);
1606 gMC->Gsatt("TICS","SEEN",0);
1607 gMC->Gsatt("TDGN","SEEN",0);
1608 gMC->Gsatt("TIRC","SEEN",0);
1609 gMC->Gsatt("TIC1","SEEN",1);
1610 gMC->Gsatt("TIPP","SEEN",0);
1611 gMC->Gsatt("TIC3","SEEN",0);
1612 gMC->Gsatt("TRCE","SEEN",0);
1613 gMC->Gsatt("TPSC","SEEN",0);
1614 gMC->Gsatt("TPCC","SEEN",0);
1615 gMC->Gsatt("TORC","SEEN",0);
1616 gMC->Gsatt("TOPP","SEEN",0);
1617 gMC->Gsatt("TOC3","SEEN",0);
1618 gMC->Gsatt("TOC1","SEEN",1);
1619 gMC->Gsatt("TSSW","SEEN",1);
1620 gMC->Gsatt("TSWC","SEEN",1);
1621 gMC->Gsatt("TSSW","COLO",3);
1622 gMC->Gsatt("TSWC","COLO",3);
1623 gMC->Gsatt("TSCE","COLO",6);
1624 gMC->Gsatt("TSCE","SEEN",1);
1625 gMC->Gsatt("TWES","SEEN",0);
1626 gMC->Gsatt("TSWB","SEEN",0);
1627 gMC->Gsatt("TPEL","SEEN",0);
1628 gMC->Gsatt("TPMW","SEEN",1);
1629 gMC->Gsatt("TESR","SEEN",1);
1630 gMC->Gsatt("TPMW","COLO",12);
1631 gMC->Gsatt("TIC1","COLO",5);
1632 gMC->Gsatt("TOC1","COLO",5);
1633 gMC->Gsatt("TESB","SEEN",0);
1634 gMC->Gsatt("THVM","SEEN",1);
1635 gMC->Gsatt("THVM","COLO",11);
1636 gMC->Gsatt("THVH","SEEN",0);
1637 gMC->Gsatt("TPSR","SEEN",0);
1638 gMC->Gsatt("THVL","SEEN",0);
1639 gMC->Gsatt("THVC","SEEN",0);
1640 gMC->Gsatt("THVE","SEEN",0);
1641 gMC->Gsatt("THVR","SEEN",0);
1644 gMC->Gdopt("hide", "on");
1645 gMC->Gdopt("shad", "on");
1646 gMC->Gsatt("*", "fill", 7);
1647 gMC->SetClipBox(".");
1648 gMC->SetClipBox("TPMW",-300,300,-300,300,254.,270.);
1649 gMC->SetClipBox("TESR",-300,300,-300,300,254.,270.);
1650 gMC->SetClipBox("TSSW",-300,300,-300,300,283.,284.);
1651 gMC->SetClipBox("TSWC",-300,300,-300,300,283.,284.);
1652 gMC->SetClipBox("*", 0, 300, -300, 300, -290, 290);
1653 gMC->DefaultRange();
1654 gMC->Gdraw("alic", 40, 30, 0, 12, 9.5, .025, .025);
1655 gMC->Gdhead(1111, "Time Projection Chamber");
1656 gMC->Gdman(18, 4, "MAN");
1657 gMC->Gdopt("hide","off");
1660 //_____________________________________________________________________________
1661 void AliTPCv0::Init()
1664 // Initialise Time Projection Chamber version 0
1667 printf("%s: *** TPC version 0 initialized***\n",ClassName());
1669 // printf("TPC version 0 initialized\n");
1672 //_____________________________________________________________________________
1673 void AliTPCv0::StepManager()
1676 // Procedure called at each step in the TPC