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 1.24 2000/11/30 11:48:50 kowal2
19 TLorentzVector.h adde to satisfy the latest changes by Federico
21 Revision 1.23 2000/11/14 10:48:57 kowal2
22 Correct material used for TSA4. Thanks to J. Barbosa.
24 Revision 1.22 2000/11/06 17:24:10 kowal2
25 Corrected bug in the outer containment vessel and
26 the outer field cage geometry.
29 Revision 1.21 2000/11/02 16:55:24 kowal2
30 Corrected bug in the inner containment vessel geometry.
33 Revision 1.20 2000/11/02 07:24:11 kowal2
34 Correction in the TPC geometry.
35 Changes due to the new hit structure.
37 Revision 1.19 2000/07/10 20:57:39 hristov
38 Update of TPC code and macros by M.Kowalski
40 Revision 1.18 2000/06/30 12:07:50 kowal2
41 Updated from the TPC-PreRelease branch
43 Revision 1.17.2.4 2000/06/26 07:39:42 kowal2
44 Changes to obey the coding rules
46 Revision 1.17.2.3 2000/06/25 08:38:41 kowal2
47 Splitted from AliTPCtracking
49 Revision 1.17.2.2 2000/06/16 12:58:13 kowal2
50 Changed parameter settings
52 Revision 1.17.2.1 2000/06/09 07:15:07 kowal2
54 Defaults loaded automatically (hard-wired)
55 Optional parameters can be set via macro called in the constructor
57 Revision 1.17 2000/05/15 10:00:30 kowal2
58 Corrected bug in the TPC geometry, thanks to Ivana Hrivnacova
60 Revision 1.16 2000/04/17 09:37:33 kowal2
61 removed obsolete AliTPCDigitsDisplay.C
63 Revision 1.15.8.2 2000/04/10 08:29:48 kowal2
65 Different pad geometry for different sectors
66 Updated readouch chambers geometry
68 Revision 1.15.8.1 2000/04/10 07:56:53 kowal2
69 Not used anymore - removed
71 Revision 1.15 1999/11/04 17:28:07 fca
72 Correct barrel part of HV Degrader
74 Revision 1.14 1999/10/08 06:27:23 fca
75 Corrected bug in the HV degrader geometry, thanks to G.Tabary
77 Revision 1.13 1999/10/04 13:39:54 fca
78 Correct array index problem
80 Revision 1.12 1999/09/29 09:24:34 fca
81 Introduction of the Copyright and cvs Log
86 ///////////////////////////////////////////////////////////////////////////////
88 // Time Projection Chamber version 1 -- detailed TPC and fast simulation //
92 <img src="picts/AliTPCv1Class.gif">
97 ///////////////////////////////////////////////////////////////////////////////
100 #include <TGeometry.h>
104 #include "AliTPCv1.h"
106 #include <iostream.h>
108 #include "TLorentzVector.h"
111 #include "AliConst.h"
113 #include "AliTPCParam.h"
114 #include "AliTPCParamSR.h"
115 #include "AliTPCDigitsArray.h"
116 #include <TInterpreter.h>
120 //_____________________________________________________________________________
122 AliTPCv1::AliTPCv1(){
128 //_____________________________________________________________________________
129 AliTPCv1::AliTPCv1(const char *name, const char *title)
130 :AliTPC(name, title) {
132 // Standard constructor for Time Projection Chamber
134 fIdSens=fIdLSec=fIdUSec=0;
136 SetGasMixt(2,20,10,-1,0.9,0.1,0.);
139 fTPCParam->Write(fTPCParam->GetTitle());
144 //_____________________________________________________________________________
145 void AliTPCv1::CreateGeometry()
147 //-------------------------------------------------------------
148 // Creates geometry for Time Projection Chamber version 1
149 // Detailed geometry -- Fast simulation - space points
150 // at the pad-rows centers
151 // Origin M.Kowalski, INP Cracow, Marek.Kowalski@ifj.edu.pl
152 //-----------------------------------------------------------
156 <img src="picts/AliTPC.gif">
161 <img src="picts/AliTPCv1Tree.gif">
166 Int_t *idtmed = fIdtmed->GetArray(); // TPC media
168 Int_t idrotm[120]; // rotation matrices
170 Int_t nRotMat = 0; // actual number of rotation matrices
174 // Mother volume (Air) - all volumes will be positioned in it
254 gMC->Gsvolu("TPC ","PCON",idtmed[0],dm,39);
257 //-------------------------------------------------------------------
258 // Tpc Outer INsulator (CO2)
259 //-------------------------------------------------------------------
298 gMC->Gsvolu("TOIN","PCON",idtmed[3],dm,21);
300 //---------------------------------------------------------------
301 // shreds (G10) - TPC Rings
302 //---------------------------------------------------------------
304 gMC->Gsvolu("TPCR","TUBE",idtmed[12],dm,0);
310 gMC->Gsposp("TPCR",1,"TOIN",0.,0.,-253.3,0,"ONLY",dm,3); // left bottom
318 gMC->Gsposp("TPCR",2,"TOIN",0.,0.,253.3,0,"ONLY",dm,3); // right
326 gMC->Gsposp("TPCR",3,"TOIN",0.,0.,-250.7,0,"ONLY",dm,3); // left top
328 //----------------------------------------------------------------
329 // Tpc Outer Contaiment Vessel
330 // mother volume - Al, daughters - composite (sandwich)
331 //----------------------------------------------------------------
372 gMC->Gsvolu("TOCV","PCON",idtmed[4],dm,21);
376 // Tpc SAndwich 1 - Al
382 gMC->Gsvolu("TSA1","TUBE",idtmed[4],dm,3);
384 // Tpc SAndwich 2 - Tedlar
389 gMC->Gsvolu("TSA2","TUBE",idtmed[9],dm,3);
391 // Tpc SAndwich 3 - Kevlar
396 gMC->Gsvolu("TSA3","TUBE",idtmed[5],dm,3);
398 // Tpc SAndwich 4 - NOMEX honeycomb
403 gMC->Gsvolu("TSA4","TUBE",idtmed[6],dm,3);
407 gMC->Gspos("TSA4",1,"TSA3",0.,0.,0.,0,"ONLY");
408 gMC->Gspos("TSA3",1,"TSA2",0.,0.,0.,0,"ONLY");
409 gMC->Gspos("TSA2",1,"TSA1",0.,0.,0.,0,"ONLY");
411 gMC->Gspos("TSA1",1,"TOCV",0.,0.,2.6,0,"ONLY");
415 gMC->Gspos("TOCV",1,"TOIN",0.,0.,0.,0,"ONLY");
417 //-------------------------------------------------------
418 // Tpc Outer Field Cage
419 // mother volume - Al, daughters - composite (sandwich)
420 //-------------------------------------------------------
460 gMC->Gsvolu("TOFC","PCON",idtmed[4],dm,21);
464 // Tpc SAndwich 5 - Tedlar
470 gMC->Gsvolu("TSA5","TUBE",idtmed[9],dm,3);
472 // Tpc SAndwich 6 - Kevlar
477 gMC->Gsvolu("TSA6","TUBE",idtmed[5],dm,3);
480 // Tpc SAndwich 7 - NOMEX
485 gMC->Gsvolu("TSA7","TUBE",idtmed[6],dm,3);
489 gMC->Gspos("TSA7",1,"TSA6",0.,0.,0.,0,"ONLY");
490 gMC->Gspos("TSA6",1,"TSA5",0.,0.,0.,0,"ONLY");
492 gMC->Gspos("TSA5",1,"TOFC",0.,0.,0.,0,"ONLY");
496 gMC->Gspos("TOFC",1,"TOIN",0.,0.,0.,0,"ONLY");
500 gMC->Gspos("TOIN",1,"TPC ",0.,0.,0.,0,"ONLY");
502 //--------------------------------------------------------------------
503 // Tpc Inner INsulator (CO2)
504 //--------------------------------------------------------------------
519 Float_t tanL = (66.2-59.0)/(255.6-73.3); // tangent of the left cone part
522 dm[7]= 59.0+ (253.6-73.3)*tanL;
603 gMC->Gsvolu("TIIN","PCON",idtmed[3],dm,48);
606 //--------------------------------------------------------------------
607 // Tpc Inner Containment vessel, Left part
608 // mother volume - Al, daughter - composite (sandwich)
609 //--------------------------------------------------------------------
623 Float_t cosL = 1./TMath::Sqrt(1.+tanL*tanL);
624 Float_t sandThick = 2.14; // cone composite thickness
630 dm[7]= 59.0 + (253.6-73.3)*tanL;
637 dm[11]= dm[7]+sandThick/cosL;
642 dm[13]= 59.0+(75.6-73.3)*tanL;
643 dm[14]= dm[13]+sandThick/cosL;
669 gMC->Gsvolu("TICL","PCON",idtmed[4],dm,27);
673 // Tpc SAndwich 9 - Al
682 dm[4]= 59.0+(254.3-73.3)*tanL;
683 dm[5]= dm[4]+sandThick/cosL;
688 dm[7]= 59.0+(78.3-73.3)*tanL;
689 dm[8]= dm[7]+sandThick/cosL;
693 gMC->Gsvolu("TSA9","PCON",idtmed[4],dm,9);
695 // Tpc SAndwich 10 - Tedlar
705 gMC->Gsvolu("TS10","PCON",idtmed[9],dm,9);
707 // Tpc SAndwich 11 - Kevlar
717 gMC->Gsvolu("TS11","PCON",idtmed[5],dm,9);
719 // Tpc SAndwich 12 - NOMEX
729 gMC->Gsvolu("TS12","PCON",idtmed[6],dm,9);
733 gMC->Gspos("TS12",1,"TS11",0.,0.,0.,0,"ONLY");
734 gMC->Gspos("TS11",1,"TS10",0.,0.,0.,0,"ONLY");
735 gMC->Gspos("TS10",1,"TSA9",0.,0.,0.,0,"ONLY");
739 gMC->Gspos("TSA9",1,"TICL",0.,0.,0.,0,"ONLY");
741 //--------------------------------------------------------------------
742 // Tpc Inner Containment vessel, Right part
743 // mother volume - Al, daughter - composite (sandwich)
744 //--------------------------------------------------------------------
770 Float_t tanR = (66.0-59.0)/(250.5-73.3); // to avoid accuracy problems
771 Float_t cosR = 1./TMath::Sqrt(1.+tanR*tanR); //as above
776 dm[13]= 59.0+(75.6-73.3)*tanR;
783 dm[17]= dm[16]+sandThick/cosR;
788 dm[19]= 59.0+(248.4-73.3)*tanR;
789 dm[20]= dm[19]+sandThick/cosR;
803 gMC->Gsvolu("TICR","PCON",idtmed[4],dm,27);
809 // Tpc SAndwich 13 - Al
818 dm[4]= 59.0+(78.3-73.3)*tanR;
819 dm[5]= dm[4]+sandThick/cosR;
824 dm[7]= 59.0+(249.1-73.3)*tanR;
825 dm[8]= dm[7]+sandThick/cosR;
829 gMC->Gsvolu("TS13","PCON",idtmed[4],dm,9);
831 // Tpc SAndwich 14 - Tedlar
841 gMC->Gsvolu("TS14","PCON",idtmed[9],dm,9);
843 // Tpc SAndwich 15 - Kevlar
853 gMC->Gsvolu("TS15","PCON",idtmed[5],dm,9);
855 // Tpc SAndwich 16 - NOMEX
865 gMC->Gsvolu("TS16","PCON",idtmed[6],dm,9);
869 gMC->Gspos("TS16",1,"TS15",0.,0.,0.,0,"ONLY");
870 gMC->Gspos("TS15",1,"TS14",0.,0.,0.,0,"ONLY");
871 gMC->Gspos("TS14",1,"TS13",0.,0.,0.,0,"ONLY");
875 gMC->Gspos("TS13",1,"TICR",0.,0.,0.,0,"ONLY");
877 //------------------------------------------------------
878 // Tpc Inner Field Cage
879 // mother volume - Al, daughters - composite (sandwich)
880 //------------------------------------------------------
922 gMC->Gsvolu("TIFC","PCON",idtmed[4],dm,21);
926 // Tpc Sandwich 17 - Tedlar
932 gMC->Gsvolu("TS17","TUBE",idtmed[9],dm,3);
934 // Tpc Sandwich 18 - Kevlar
939 gMC->Gsvolu("TS18","TUBE",idtmed[5],dm,3);
942 // Tpc Sandwich 19 - NOMEX
947 gMC->Gsvolu("TS19","TUBE",idtmed[6],dm,3);
951 gMC->Gspos("TS19",1,"TS18",0.,0.,0.,0,"ONLY");
952 gMC->Gspos("TS18",1,"TS17",0.,0.,0.,0,"ONLY");
956 gMC->Gspos("TS17",1,"TIFC",0.,0.,0.,0,"ONLY");
964 gMC->Gsposp("TPCR",4,"TIIN",0.,0.,-253.3,0,"ONLY",dm,3);
969 gMC->Gsposp("TPCR",5,"TIIN",0.,0.,250.7,0,"ONLY",dm,3);
974 gMC->Gsposp("TPCR",6,"TIIN",0.,0.,253.3,0,"ONLY",dm,3);
978 gMC->Gspos("TICL",1,"TIIN",0.,0.,0.,0,"ONLY");
982 gMC->Gspos("TICR",1,"TIIN",0.,0.,0.,0,"ONLY");
986 gMC->Gspos("TIFC",1,"TIIN",0.,0.,0.,0,"ONLY");
988 // Tpc Sandwich 21 - Al (central barrel)
994 gMC->Gsvolu("TS21","TUBE",idtmed[4],dm,3);
996 // Tpc Sandwich 22 - Tedlar (central barrel)
1001 gMC->Gsvolu("TS22","TUBE",idtmed[9],dm,3);
1003 // Tpc Sandwich 23 - Kevlar (central barrel)
1008 gMC->Gsvolu("TS23","TUBE",idtmed[5],dm,3);
1010 // Tpc Sandwich 24 - NOMEX (central barrel)
1015 gMC->Gsvolu("TS24","TUBE",idtmed[6],dm,3);
1019 gMC->Gspos("TS24",1,"TS23",0.,0.,0.,0,"ONLY");
1020 gMC->Gspos("TS23",1,"TS22",0.,0.,0.,0,"ONLY");
1021 gMC->Gspos("TS22",1,"TS21",0.,0.,0.,0,"ONLY");
1023 gMC->Gspos("TS21",1,"TIIN",0.,0.,0.,0,"ONLY");
1025 // put everything into the TPC
1027 gMC->Gspos("TIIN",1,"TPC ",0.,0.,0.,0,"ONLY");
1030 //---------------------------------------------------------
1031 // Tpc Dift Gas volume Nonsensitive (Ne-CO2 90/10)
1032 // and its daughters (HV membrane, rods, readout chambers)
1033 //---------------------------------------------------------
1039 gMC->Gsvolu("TDGN","TUBE",idtmed[1],dm,3);
1041 // sector opening angles
1043 Float_t innerOpenAngle = fTPCParam->GetInnerAngle();
1044 Float_t outerOpenAngle = fTPCParam->GetOuterAngle();
1046 // sector angle shift
1048 Float_t innerAngleShift = fTPCParam->GetInnerAngleShift();
1050 // number of sectors
1052 Int_t nInnerSector = fTPCParam->GetNInnerSector()/2;
1053 Int_t nOuterSector = fTPCParam->GetNOuterSector()/2;
1055 // All above parameters are identical for inner and outer
1056 // sectors. The distinction is kept for the historical reasons
1057 // and eventually will disappear.
1059 Float_t tanAlpha = TMath::Tan(0.5*innerOpenAngle);
1060 Float_t cosAlpha = TMath::Sqrt(1.+tanAlpha*tanAlpha);
1063 //-------------------------------------------------------------------------
1064 // Tpc Inner Readout Chambers
1065 //-------------------------------------------------------------------------
1069 dm[2]= 1.6; // thickness
1072 gMC->Gsvolu("TIRC","TRD1",idtmed[4],dm,4);
1074 // this volume will be positioned in the empty space
1075 // of the end-cap to avoid overlaps
1082 gMC->Gsvolu("TIC1","TRD1",idtmed[4],dm,4);
1085 //------------------------------------------------
1086 // Tpc Inner readout chamber Pad Plane
1087 //------------------------------------------------
1094 gMC->Gsvolu("TIPP","TRD1",idtmed[12],dm,4);
1098 dm[0] -= 1.218511934;
1099 dm[1] -= 1.218511934;
1102 gMC->Gsvolu("TIC3","TRD1",idtmed[1],dm,4);
1104 gMC->Gspos("TIC3",1,"TIPP",0.,0.15,0.,0,"ONLY");
1106 gMC->Gspos("TIPP",1,"TIRC",0.,1.1,0.,0,"ONLY");
1109 //----------------------------------------------
1110 // Tpc Readout Chambers Empty spaces - for both
1111 // inner and outer sectors
1112 //----------------------------------------------
1114 gMC->Gsvolu("TRCE","TRD1",idtmed[0],dm,0);
1116 // Inner sector - 4 spaces
1127 space = rr*tanAlpha-dm[0];
1129 for(Int_t nsLow=0;nsLow<4;nsLow++){
1132 dm[1]= rr*tanAlpha - space;
1136 gMC->Gsposp("TRCE",nsLow+1,"TIRC",0.,-0.8,zz,0,"ONLY",dm,4);
1142 gMC->Gsposp("TRCE",nsLow+5,"TIC1",0.,1.05,zz-2.1,0,"ONLY",dm,4);
1145 dm[0] = rr*tanAlpha - space;
1151 // dm[1] - this is the dm[1] from the previous TRCE
1155 gMC->Gsposp("TRCE",9,"TIC1",0.,-1.2,0.,0,"ONLY",dm,4);
1158 // TPc Space for Connectors
1165 gMC->Gsvolu("TPSC","BOX ",idtmed[0],dm,3);
1173 gMC->Gsvolu("TPCC","BOX ",idtmed[13],dm,3);
1175 gMC->Gspos("TPCC",1,"TPSC",0.,0.15,0.,0,"ONLY");
1183 Float_t phi1,phi2,phi3,theta1,theta2,theta3; // rotation angles
1185 // inner part of the inner sector - 2 x 20 holes
1187 astep = 20.00096874/19.;
1189 alpha = 10.00048437-astep;
1201 for(ncon=0;ncon<20;ncon++){
1207 phi3 = (alpha>0) ? 0. : 180.;
1208 theta3 = TMath::Abs(alpha);
1210 AliMatrix(idrotm[nRotMat], theta1, phi1, theta2, phi2, theta3, phi3);
1214 gMC->Gspos("TPSC",ncon+1,"TIRC",x1,0.3,-12.7875,idrotm[nRotMat],"ONLY");
1215 gMC->Gspos("TPSC",ncon+21,"TIRC",x2,0.3,-2.8625,idrotm[nRotMat],"ONLY");
1226 // outer part of the inner sector - 2 x 25 holes
1228 astep = 20.00096874/24.;
1229 alpha = 10.00048437-astep;
1237 for(ncon=0;ncon<25;ncon++){
1243 phi3 = (alpha>0) ? 0. : 180.;
1244 theta3 = TMath::Abs(alpha);
1246 AliMatrix(idrotm[nRotMat], theta1, phi1, theta2, phi2, theta3, phi3);
1250 gMC->Gspos("TPSC",ncon+41,"TIRC",x1,0.3,7.0625,idrotm[nRotMat],"ONLY");
1251 gMC->Gspos("TPSC",ncon+66,"TIRC",x2,0.3,16.9875,idrotm[nRotMat],"ONLY");
1262 //--------------------------------------------------------------------------
1263 // TPC Outer Readout Chambers
1264 // this is NOT a final design
1265 //--------------------------------------------------------------------------
1269 dm[2]= 1.5; //thickness
1272 gMC->Gsvolu("TORC","TRD1",idtmed[4],dm,4);
1274 //------------------------------------------------
1275 // Tpc Outer readout chamber Pad Plane
1276 //------------------------------------------------
1280 gMC->Gsvolu("TOPP","TRD1",idtmed[12],dm,4);
1282 dm[0] -= 1.218511934;
1283 dm[1] -= 1.218511934;
1286 gMC->Gsvolu("TOC3","TRD1",idtmed[1],dm,4);
1288 gMC->Gspos("TOC3",1,"TOPP",0.,0.15,0.,0,"ONLY");
1290 gMC->Gspos("TOPP",1,"TORC",0.,1.0,0.,0,"ONLY");
1300 gMC->Gsposp("TRCE",11,"TORC",0.,-0.8,-2.15,0,"ONLY",dm,4);
1307 gMC->Gsvolu("TOC1","TRD1",idtmed[4],dm,4);
1315 gMC->Gsposp("TRCE",11,"TOC1",0.,0.,0.,0,"ONLY",dm,4);
1318 //-----------------------------------------------
1319 // Tpc Services Support Wheel
1320 //-----------------------------------------------
1335 gMC->Gsvolu("TSSW","PGON",idtmed[4],dm,10);
1337 // Tpc Services Wheel Cover
1342 gMC->Gsvolu("TSWC","PGON",idtmed[4],dm,10);
1344 // Tpc Service wheel Cover Empty space
1351 gMC->Gsvolu("TSCE","TRD1",idtmed[0],dm,4);
1353 // Tpc services Wheel Empty Spaces
1360 gMC->Gsvolu("TWES","TRD1",idtmed[0],dm,4);
1362 // Tpc Services Wheel Bars
1364 gMC->Gsvolu("TSWB","TRD1",idtmed[4],dm,0);
1374 gMC->Gsposp("TSWB",1,"TWES",0.,0.,-85.125,0,"ONLY",dm,4);
1379 gMC->Gsposp("TSWB",2,"TWES",0.,0.,85.125,0,"ONLY",dm,4);
1381 // TPc ELectronics - right now 30% X0 Si
1388 gMC->Gsvolu("TPEL","TRD1",idtmed[11],dm,4);
1389 gMC->Gspos("TPEL",1,"TWES",0.,0.,0.,0,"ONLY");
1391 //--------------------------------------------------------------------------
1393 //--------------------------------------------------------------------------
1395 // TPc Main Wheel - Al
1401 gMC->Gsvolu("TPMW","TUBE",idtmed[4],dm,3);
1403 // TPc Extra Wheel (to avoid overlapping) - Al
1409 gMC->Gsvolu("TPEW","TUBE",idtmed[4],dm,3);
1411 //--------------------------------------------------------------------------
1412 // Tpc Empty Space for the Readout chambers
1413 //--------------------------------------------------------------------------
1417 Float_t dR = 0.5*(rUp-rLow);
1419 space= 1.4/cosAlpha; // wheel ribs are 2.8 cm wide
1421 dm[0]= rLow*tanAlpha-space;
1422 dm[1]= rUp*tanAlpha-space;
1426 gMC->Gsvolu("TESR","TRD1",idtmed[0],dm,4);
1431 gMC->Gspos("TIC1",1,"TESR",0.,0.75,-dR+23.97,0,"ONLY");
1436 gMC->Gspos("TOC1",1,"TESR",0.,0.75,dR-55.02,0,"ONLY");
1438 // Tpc Empty Space Bars - Al (daughters of TESR)
1442 gMC->Gsvolu("TESB","TRD1",idtmed[4],dm,0);
1446 dm[0]= rLow*tanAlpha-space;
1447 dm[1]= 88.7*tanAlpha-space;
1453 gMC->Gsposp("TESB",1,"TESR",0.,2.05,zBar,0,"ONLY",dm,4);
1457 dm[0]= 131.65*tanAlpha-space;
1458 dm[1]= 136.5*tanAlpha-space;
1461 zBar = -dR +131.65+dm[3]-rLow;
1463 gMC->Gsposp("TESB",2,"TESR",0.,2.05,zBar,0,"ONLY",dm,4);
1467 dm[0]= 240.4*tanAlpha-space;
1468 dm[1]= rUp*tanAlpha-space;
1473 gMC->Gsposp("TESB",3,"TESR",0.,2.05,zBar,0,"ONLY",dm,4);
1475 //------------------------------------------------------
1476 // TPc Lower "S" Sectors
1477 //------------------------------------------------------
1482 Float_t inSecLowEdge = fTPCParam->GetInnerRadiusLow();
1483 Float_t inSecUpEdge = fTPCParam->GetInnerRadiusUp();
1485 dm[0] = inSecLowEdge*TMath::Tan(0.5*innerOpenAngle)-0.01;
1486 dm[1] = inSecUpEdge*TMath::Tan(0.5*innerOpenAngle)-0.01;
1487 dm[2] = 0.5*(250. - 0.3);
1488 dm[3] = 0.5*(inSecUpEdge-inSecLowEdge);
1490 gMC->Gsvolu("TPLS", "TRD1", idtmed[1], dm, 4); // nonsensitive
1492 //----------------------------------------------------------
1493 // TPc Upper Sectors
1494 //----------------------------------------------------------
1496 Float_t ouSecLowEdge = fTPCParam->GetOuterRadiusLow();
1497 Float_t ouSecUpEdge = fTPCParam->GetOuterRadiusUp();
1499 dm[0] = ouSecLowEdge*TMath::Tan(0.5*outerOpenAngle)-0.01;
1500 dm[1] = ouSecUpEdge*TMath::Tan(0.5*outerOpenAngle)-0.01;
1501 dm[2] = 0.5*(250. - 0.3);
1502 dm[3] = 0.5*(ouSecUpEdge-ouSecLowEdge);
1504 gMC->Gsvolu("TPUS", "TRD1", idtmed[1], dm, 4); // nonsensitive
1506 //--------------------------------------------------------
1507 // TPc Sensitive Strips, the same for S and L sectors
1508 //--------------------------------------------------------
1510 gMC->Gsvolu("TPSS","TRD1",idtmed[2],dm,0); // sensitive
1512 Int_t nofStrips,nstr;
1514 Float_t stripThick = 0.01; // 100 microns
1518 nofStrips = fTPCParam->GetNRowLow();
1519 deadSpace = fTPCParam->GetInnerWireMount();
1521 dm[2] = 0.5*(250. - 0.3);
1522 dm[3] = 0.5 * stripThick;
1524 for(nstr=0;nstr<nofStrips;nstr++){
1526 r1 = fTPCParam->GetPadRowRadiiLow(nstr);
1527 r2 = r1 + stripThick;
1528 dm[0] = r1 * TMath::Tan(0.5*innerOpenAngle) - deadSpace;
1529 dm[1] = r2 * TMath::Tan(0.5*innerOpenAngle) - deadSpace;
1530 zs = -inSecLowEdge -0.5*(inSecUpEdge-inSecLowEdge);
1534 gMC->Gsposp("TPSS", nstr+1, "TPLS", 0., 0., zs, 0, "ONLY", dm, 4);
1538 Int_t nsSave = nofStrips;
1542 nofStrips = fTPCParam->GetNRowUp();
1543 deadSpace = fTPCParam->GetOuterWireMount();
1545 dm[2] = 0.5*(250. - 0.3);
1546 dm[3] = 0.5 * stripThick;
1548 for(nstr=0;nstr<nofStrips;nstr++){
1550 r1 = fTPCParam->GetPadRowRadiiUp(nstr);
1551 r2 = r1 + stripThick;
1552 dm[0] = r1 * TMath::Tan(0.5*outerOpenAngle) - deadSpace;
1553 dm[1] = r2 * TMath::Tan(0.5*outerOpenAngle) - deadSpace;
1554 zs = -ouSecLowEdge -0.5*(ouSecUpEdge-ouSecLowEdge);
1558 gMC->Gsposp("TPSS", nstr+1+nsSave, "TPUS", 0., 0., zs, 0, "ONLY", dm, 4);
1563 //-------------------------------------------------------
1564 // positioning of the empty spaces into the main wheel
1565 // and readout chambers and sectors into the drift gas
1566 //-------------------------------------------------------
1568 Float_t rCenter,xc,yc;
1569 Float_t rInner,rOuter; // center of the inner and outer chamber
1576 for(Int_t ns=0; ns<nInnerSector;ns++){
1578 phi1 = ns * innerOpenAngle + innerAngleShift;
1579 phi1 *= kRaddeg; // in degrees
1581 phi1 = (Float_t)TMath::Nint(phi1) + 270.;
1583 if (phi1 > 360.) phi1 -= 360.;
1588 phi3 = ns * innerOpenAngle + innerAngleShift;
1589 phi3 *= kRaddeg; // in degrees
1591 phi3 = (Float_t)TMath::Nint(phi3);
1593 if(phi3 > 360.) phi3 -= 360.;
1597 // "holes"->End plate
1599 xc = rCenter*TMath::Cos(phi3*kDegrad);
1600 yc = rCenter*TMath::Sin(phi3*kDegrad);
1602 AliMatrix(idrotm[nRotMat], theta1, phi1, theta2, phi2, theta3, phi3);
1604 gMC->Gspos("TESR",ns+1,"TPMW",xc,yc,0.,idrotm[nRotMat],"ONLY");
1606 // TSCE->TSWC (services wheel volumes)
1608 xc = 166.142*TMath::Cos(phi3*kDegrad);
1609 yc = 166.142*TMath::Sin(phi3*kDegrad);
1611 gMC->Gspos("TSCE",ns+1,"TSWC",xc,yc,0.,idrotm[nRotMat],"ONLY");
1612 gMC->Gspos("TWES",ns+1,"TSSW",xc,yc,0.,idrotm[nRotMat],"ONLY");
1615 // readout chambers->TDGN (drift gas)
1617 xc = rInner*TMath::Cos(phi3*kDegrad);
1618 yc = rInner*TMath::Sin(phi3*kDegrad);
1620 gMC->Gspos("TIRC",ns+1,"TDGN",xc,yc,252.,idrotm[nRotMat],"ONLY");
1622 // here lower sectors
1624 gMC->Gspos("TPLS",ns+1,"TDGN",xc,yc,125.15,idrotm[nRotMat],"ONLY");
1625 gMC->Gspos("TPLS",ns+nInnerSector+1,"TDGN",xc,yc,-125.15,idrotm[nRotMat],"ONLY");
1627 xc = rOuter*TMath::Cos(phi3*kDegrad);
1628 yc = rOuter*TMath::Sin(phi3*kDegrad);
1630 gMC->Gspos("TORC",ns+1,"TDGN",xc,yc,252.1,idrotm[nRotMat],"ONLY");
1632 // here upper sectors
1634 gMC->Gspos("TPUS",ns+1,"TDGN",xc,yc,125.15,idrotm[nRotMat],"ONLY");
1635 gMC->Gspos("TPUS",ns+nOuterSector+1,"TDGN",xc,yc,-125.15,idrotm[nRotMat],"ONLY");
1639 theta2 = 0.; // reflection
1641 AliMatrix(idrotm[nRotMat], theta1, phi1, theta2, phi2, theta3, phi3);
1643 xc = rInner*TMath::Cos(phi3*kDegrad);
1644 yc = rInner*TMath::Sin(phi3*kDegrad);
1646 gMC->Gspos("TIRC",ns+nInnerSector+1,"TDGN",xc,yc,-252.,idrotm[nRotMat],"ONLY");
1648 xc = rOuter*TMath::Cos(phi3*kDegrad);
1649 yc = rOuter*TMath::Sin(phi3*kDegrad);
1651 gMC->Gspos("TORC",ns+nOuterSector+1,"TDGN",xc,yc,-252.1,idrotm[nRotMat],"ONLY");
1657 // reflection matrix
1666 AliMatrix(idrotm[nRotMat], theta1, phi1, theta2, phi2, theta3, phi3);
1671 gMC->Gspos("TPMW",1,"TPC ",0.,0.,256.6,0,"ONLY");
1672 gMC->Gspos("TPMW",2,"TPC ",0.,0.,-256.6,idrotm[nRotMat],"ONLY");
1673 gMC->Gspos("TPEW",1,"TPC ",0.,0.,257.65,0,"ONLY");
1674 gMC->Gspos("TPEW",2,"TPC ",0.,0.,-257.5,0,"ONLY");
1678 //-------------------------------------------------------
1679 // Tpc High Voltage Membrane - NOMEX honeycomb
1680 //-------------------------------------------------------
1699 gMC->Gsvolu("THVM","PGON",idtmed[6],dm,10);
1701 gMC->Gspos("THVM",1,"TDGN",0.,0.,0.,0,"ONLY");
1703 //----------------------------------------------------------
1704 // TPc Support Rods - MAKROLON
1705 //----------------------------------------------------------
1711 gMC->Gsvolu("TPSR","TUBE",idtmed[7],dm,3);
1713 for(Int_t nrod=1;nrod<18;nrod++){
1714 Float_t angle=innerOpenAngle*(Float_t)nrod;
1716 xc=82.4*TMath::Cos(angle);
1717 yc=82.4*TMath::Sin(angle);
1719 gMC->Gspos("TPSR",nrod,"TDGN",xc,yc,126.95,0,"ONLY");
1720 gMC->Gspos("TPSR",nrod+17,"TDGN",xc,yc,-126.95,0,"ONLY");
1722 xc=254.2*TMath::Cos(angle);
1723 yc=254.2*TMath::Sin(angle);
1725 gMC->Gspos("TPSR",nrod+34,"TDGN",xc,yc,126.95,0,"ONLY");
1726 gMC->Gspos("TPSR",nrod+51,"TDGN",xc,yc,-126.95,0,"ONLY");
1730 //----------------------------------------------------------
1731 // Tpc High Voltage rod - MAKROLON + Copper cable
1732 //----------------------------------------------------------
1734 // rod with cable (Left)
1740 gMC->Gsvolu("THVL","TUBE",idtmed[7],dm,3);
1748 gMC->Gsvolu("THVC","TUBE",idtmed[10],dm,3);
1756 gMC->Gsvolu("THVE","TUBE",idtmed[1],dm,3);
1758 gMC->Gspos("THVC",1,"THVL",0.,0.,0.,0,"ONLY");
1759 gMC->Gspos("THVE",1,"THVL",0.,0.,0.,0,"ONLY");
1761 // rod without cable
1767 gMC->Gsvolu("THVR","TUBE",idtmed[7],dm,3);
1771 gMC->Gspos("THVL",1,"TDGN",82.4,0.,-126.95,0,"ONLY");
1772 gMC->Gspos("THVL",2,"TDGN",254.2,0.,-126.95,0,"ONLY");
1774 gMC->Gspos("THVR",1,"TDGN",82.4,0.,126.95,0,"ONLY");
1775 gMC->Gspos("THVR",2,"TDGN",254.2,0.,126.95,0,"ONLY");
1779 gMC->Gspos("TDGN",1,"TPC ",0.,0.,0.,0,"ONLY");
1781 // services wheel cover -> wheel
1784 gMC->Gspos("TSWC",1,"TSSW",0.,0.,4.5,0,"ONLY");
1785 gMC->Gspos("TSWC",2,"TSSW",0.,0.,-4.5,0,"ONLY");
1788 // put the wheel into the TPC
1790 gMC->Gspos("TSSW",1,"TPC ",0.,0.,278.7,0,"ONLY");
1791 gMC->Gspos("TSSW",2,"TPC ",0.,0.,-278.7,0,"ONLY");
1793 gMC->Gsord("TPMW",6);
1794 gMC->Gsord("TPLS",3);
1795 gMC->Gsord("TPUS",3);
1796 gMC->Gsord("TDGN",6);
1797 gMC->Gsord("TSSW",6);
1798 gMC->Gsord("TSWC",6);
1800 // put the TPC into ALIC (main mother volume)
1802 gMC->Gspos("TPC ", 1, "ALIC", 0, 0, 0, 0, "ONLY");
1805 } // end of function
1807 //_____________________________________________________________________________
1808 void AliTPCv1::DrawDetector()
1811 // Draw a shaded view of the Time Projection Chamber version 1
1814 // Set everything unseen
1815 gMC->Gsatt("*", "seen", -1);
1817 // Set ALIC mother transparent
1818 gMC->Gsatt("ALIC","SEEN",0);
1820 // Set the volumes visible
1821 gMC->Gsatt("TPC ","SEEN",0);
1822 gMC->Gsatt("TOIN","SEEN",1);
1823 gMC->Gsatt("TOIN","COLO",7);
1824 gMC->Gsatt("TPCR","SEEN",0);
1825 gMC->Gsatt("TOCV","SEEN",1);
1826 gMC->Gsatt("TOCV","COLO",4);
1827 gMC->Gsatt("TSA1","SEEN",0);
1828 gMC->Gsatt("TSA2","SEEN",0);
1829 gMC->Gsatt("TSA3","SEEN",0);
1830 gMC->Gsatt("TSA4","SEEN",0);
1831 gMC->Gsatt("TOFC","SEEN",1);
1832 gMC->Gsatt("TOFC","COLO",4);
1833 gMC->Gsatt("TSA5","SEEN",0);
1834 gMC->Gsatt("TSA6","SEEN",0);
1835 gMC->Gsatt("TSA7","SEEN",0);
1836 gMC->Gsatt("TIIN","COLO",7);
1837 gMC->Gsatt("TIIN","SEEN",1);
1838 gMC->Gsatt("TICL","SEEN",0);
1839 gMC->Gsatt("TSA9","SEEN",0);
1840 gMC->Gsatt("TS10","SEEN",0);
1841 gMC->Gsatt("TS11","SEEN",0);
1842 gMC->Gsatt("TS12","SEEN",0);
1843 gMC->Gsatt("TICR","SEEN",0);
1844 gMC->Gsatt("TS13","SEEN",0);
1845 gMC->Gsatt("TS14","SEEN",0);
1846 gMC->Gsatt("TS15","SEEN",0);
1847 gMC->Gsatt("TS16","SEEN",0);
1848 gMC->Gsatt("TIFC","SEEN",1);
1849 gMC->Gsatt("TIFC","COLO",4);
1850 gMC->Gsatt("TS17","SEEN",0);
1851 gMC->Gsatt("TS18","SEEN",0);
1852 gMC->Gsatt("TS19","SEEN",0);
1853 gMC->Gsatt("TS21","SEEN",0);
1854 gMC->Gsatt("TS22","SEEN",0);
1855 gMC->Gsatt("TS23","SEEN",0);
1856 gMC->Gsatt("TS24","SEEN",0);
1857 gMC->Gsatt("TDGN","SEEN",0);
1858 gMC->Gsatt("TIRC","SEEN",0);
1859 gMC->Gsatt("TIC1","SEEN",1);
1860 gMC->Gsatt("TIPP","SEEN",0);
1861 gMC->Gsatt("TIC3","SEEN",0);
1862 gMC->Gsatt("TRCE","SEEN",0);
1863 gMC->Gsatt("TPSC","SEEN",0);
1864 gMC->Gsatt("TPCC","SEEN",0);
1865 gMC->Gsatt("TORC","SEEN",0);
1866 gMC->Gsatt("TOPP","SEEN",0);
1867 gMC->Gsatt("TOC3","SEEN",0);
1868 gMC->Gsatt("TOC1","SEEN",1);
1869 gMC->Gsatt("TSSW","SEEN",1);
1870 gMC->Gsatt("TSWC","SEEN",1);
1871 gMC->Gsatt("TSCE","SEEN",1);
1872 gMC->Gsatt("TSSW","COLO",3);
1873 gMC->Gsatt("TSWC","COLO",3);
1874 gMC->Gsatt("TSCE","COLO",6);
1875 gMC->Gsatt("TWES","SEEN",0);
1876 gMC->Gsatt("TSWB","SEEN",0);
1877 gMC->Gsatt("TPEL","SEEN",0);
1878 gMC->Gsatt("TPMW","SEEN",1);
1879 gMC->Gsatt("TPEW","SEEN",1);
1880 gMC->Gsatt("TESR","SEEN",1);
1881 gMC->Gsatt("TPMW","COLO",12);
1882 gMC->Gsatt("TPEW","COLO",12);
1883 gMC->Gsatt("TWES","COLO",5);
1884 gMC->Gsatt("TIC1","COLO",5);
1885 gMC->Gsatt("TOC1","COLO",5);
1886 gMC->Gsatt("TESB","SEEN",0);
1887 gMC->Gsatt("TPLS","SEEN",0);
1888 gMC->Gsatt("TPUS","SEEN",0);
1889 gMC->Gsatt("TPSS","SEEN",0);
1890 gMC->Gsatt("THVM","SEEN",1);
1891 gMC->Gsatt("THVM","COLO",11);
1892 gMC->Gsatt("TPSR","SEEN",0);
1893 gMC->Gsatt("THVL","SEEN",0);
1894 gMC->Gsatt("THVC","SEEN",0);
1895 gMC->Gsatt("THVE","SEEN",0);
1896 gMC->Gsatt("THVR","SEEN",0);
1898 gMC->Gdopt("hide", "on");
1899 gMC->Gdopt("shad", "on");
1900 gMC->Gsatt("*", "fill", 7);
1901 gMC->SetClipBox(".");
1902 gMC->SetClipBox("TPMW",-300,300,-300,300,254.,270.);
1903 gMC->SetClipBox("TESR",-300,300,-300,300,254.,270.);
1904 gMC->SetClipBox("TSSW",-300,300,-300,300,283.,284.);
1905 gMC->SetClipBox("TSWC",-300,300,-300,300,283.,284.);
1906 gMC->SetClipBox("*", 0, 300, -300, 300, -290, 290);
1907 gMC->DefaultRange();
1908 gMC->Gdraw("alic", 40, 30, 0, 12, 9.5, .025, .025);
1909 gMC->Gdhead(1111, "Time Projection Chamber");
1910 gMC->Gdman(18, 4, "MAN");
1911 gMC->Gdopt("hide","off");
1914 //_____________________________________________________________________________
1915 void AliTPCv1::CreateMaterials()
1918 // Define materials for Time Projection Chamber
1920 AliTPC::CreateMaterials();
1923 //_____________________________________________________________________________
1924 void AliTPCv1::Init()
1927 // Initialises TPC detector after it has been created
1930 fIdSens=gMC->VolId("TPSS"); // sensitive strip
1931 fIdLSec=gMC->VolId("TPLS"); // lower sector
1932 fIdUSec=gMC->VolId("TPUS"); // upper sector
1934 printf("TPC version 1 initialized\n");
1937 //_____________________________________________________________________________
1938 void AliTPCv1::StepManager()
1941 // Called at every step in the Time Projection Chamber
1949 if(gMC->TrackCharge() && gMC->IsTrackEntering()) {
1952 // Only charged tracks entering the sensitive volume
1955 id = gMC->CurrentVolID(copy);
1959 // sensitive volume (strip)
1961 vol[1]= copy-1; // row number (absolute)
1965 id = gMC->CurrentVolOffID(1,copy);
1971 vol[0] = copy-1; // sector number
1978 vol[0] = copy-1+fTPCParam->GetNInnerSector(); // sector number
1979 vol[1] -= fTPCParam->GetNRowLow(); // row number
1985 // because Jouri wants to have this
1987 gMC->TrackMomentum(p);
1991 hits[3]=0.; // this hit has no energy loss
1992 // new(lhits[fNhits++]) AliTPChit(fIshunt,gAlice->CurrentTrack(),vol,hits);
1994 AddHit(gAlice->CurrentTrack(), vol,hits); // M.I.
1996 gMC->TrackPosition(p);
2000 hits[3]=0.; // this hit has no energy loss
2001 // new(lhits[fNhits++]) AliTPChit(fIshunt,gAlice->CurrentTrack(),vol,hits);
2003 AddHit(gAlice->CurrentTrack(), vol,hits); // M.I.
2007 gMC->TrackPosition(p);
2008 for(i=0;i<3;++i) hits[i]=p[i];
2009 hits[3]=1; //I'd like to have something positive here (I.Belikov)
2010 // new(lhits[fNhits++]) AliTPChit(fIshunt,gAlice->CurrentTrack(),vol,hits);
2012 AddHit(gAlice->CurrentTrack(), vol,hits); // M.I.
2019 //_____________________________________________________________________________