/*
$Log$
+Revision 1.24 2000/08/28 10:02:30 kowal2
+Corrected bug in the StepManager
+
+Revision 1.23 2000/07/10 20:57:39 hristov
+Update of TPC code and macros by M.Kowalski
+
+Revision 1.22 2000/06/30 12:07:50 kowal2
+Updated from the TPC-PreRelease branch
+
+Revision 1.21.2.4 2000/06/26 07:39:42 kowal2
+Changes to obey the coding rules
+
+Revision 1.21.2.3 2000/06/25 08:38:41 kowal2
+Splitted from AliTPCtracking
+
+Revision 1.21.2.2 2000/06/16 12:58:13 kowal2
+Changed parameter settings
+
+Revision 1.21.2.1 2000/06/09 07:15:07 kowal2
+
+Defaults loaded automatically (hard-wired)
+Optional parameters can be set via macro called in the constructor
+
+Revision 1.21 2000/05/15 10:00:30 kowal2
+Corrected bug in the TPC geometry, thanks to Ivana Hrivnacova
+
+Revision 1.20 2000/04/17 09:37:33 kowal2
+removed obsolete AliTPCDigitsDisplay.C
+
+Revision 1.19.8.2 2000/04/10 08:31:52 kowal2
+
+Different geometry for different sectors
+Updated readout chambers
+Some modifications to StepManager by J.Belikov
+
+Revision 1.19.8.1 2000/04/10 07:56:53 kowal2
+Not used anymore - removed
+
+Revision 1.19 1999/11/04 17:28:07 fca
+Correct barrel part of HV Degrader
+
+Revision 1.18 1999/10/14 16:52:08 fca
+Only use PDG codes and not GEANT ones
+
+Revision 1.17 1999/10/08 06:27:23 fca
+Corrected bug in the HV degrader geometry, thanks to G.Tabary
+
+Revision 1.16 1999/10/04 13:39:54 fca
+Correct array index problem
+
Revision 1.15 1999/09/29 09:24:34 fca
Introduction of the Copyright and cvs Log
*/
+//
///////////////////////////////////////////////////////////////////////////////
// //
// Time Projection Chamber version 2 -- detailed TPC and slow simulation //
#include <TMath.h>
#include "AliTPCv2.h"
-#include "AliTPCD.h"
+#include "AliTPCDigitsArray.h"
#include "AliRun.h"
+#include "AliMC.h"
#include "AliConst.h"
+#include "AliPDG.h"
+#include "AliTPCParam.h"
+#include "AliTPCParamSR.h"
ClassImp(AliTPCv2)
//
// Standard constructor for Time Projection Chamber version 2
//
- fIdSens1=0;
- fIdSens2=0;
+ fIdSens=0;
+ fIdLSec=0;
+ fIdUSec=0;
+
SetBufferSize(128000);
+
+ SetGasMixt(2,20,10,-1,0.9,0.1,0.); // Ne-CO2 90-10
+
+ // Default sectors
+
+ SetSecAL(4);
+ SetSecAU(4);
+ SetSecLows(1, 2, 3, 19, 20, 21);
+ SetSecUps(37, 38, 39, 37+18, 38+18, 39+18, -1, -1, -1, -1, -1, -1);
+ SetSens(1); // sensitive strips set
+
+ if (fTPCParam)
+ fTPCParam->Write(fTPCParam->GetTitle());
}
//_____________________________________________________________________________
//
//Begin_Html
/*
- <img src="picts/AliTPCv2.gif">
+ <img src="picts/AliTPC.gif">
*/
//End_Html
//Begin_Html
*/
//End_Html
- AliTPCParam * fTPCParam = &(fDigParam->GetParam());
Int_t *idtmed = fIdtmed->GetArray();
- Float_t dm[21];
+ Float_t dm[50];
Int_t idrotm[120];
Int_t nRotMat = 0;
- Int_t i,ifl1,ifl2;
+ Int_t i,ifl1,ifl2=0;
+
+ // number of sectors
Int_t nInnerSector = fTPCParam->GetNInnerSector()/2;
Int_t nOuterSector = fTPCParam->GetNOuterSector()/2;
printf("!!! PROGRAM STOPPED !!!\n");
exit(1);
}
+
+ //--------------------------------------------------------------------
+
+ //
+ // Mother volume (Air) - all volumes will be positioned in it
+ //
+
+ dm[0]=0.;
+ dm[1]=360.;
+ dm[2]=12.;
+
+ //
+
+ dm[3]= -283.7;
+ dm[4]= 66.2;
+ dm[5]= 277.95;
+
+ //
+
+ dm[6]= -255.6;
+ dm[7]= 66.2;
+ dm[8]= 277.95;
+
+ //
+
+ dm[9]= -73.3;
+ dm[10]= 59.0;
+ dm[11]= 277.95;
+
+ //
+
+ dm[12]= -73.3;
+ dm[13]= 56.9;
+ dm[14]= 277.95;
+
+ //
+
+ dm[15]= -72.1;
+ dm[16]= 56.9;
+ dm[17]= 277.95;
+
+ //
+
+ dm[18]= -72.1;
+ dm[19]= 60.65;
+ dm[20]= 277.95;
+
+ //
+
+ dm[21]= 72.1;
+ dm[22]= 60.65;
+ dm[23]= 277.95;
+
+ //
+
+ dm[24]= 72.1;
+ dm[25]= 56.9;
+ dm[26]= 277.95;
+
+ //
+
+ dm[27]= 73.3;
+ dm[28]= 56.9;
+ dm[29]= 277.95;
+
+ //
+
+ dm[30]= 73.3;
+ dm[31]= 60.65;
+ dm[32]= 277.95;
+
+ //
+
+ dm[33]= 250.4;
+ dm[34]= 66.0;
+ dm[35]= 277.95;
+
+ //
+
+ dm[36]= 283.7;
+ dm[37]= 66.0;
+ dm[38]= 277.95;
+
+
+ gMC->Gsvolu("TPC ","PCON",idtmed[0],dm,39);
+
+
+ //-------------------------------------------------------------------
+ // Tpc Outer INsulator (CO2)
+ //-------------------------------------------------------------------
+
+ dm[0]= 0.;
+ dm[1]= 360.;
+ dm[2]= 6.;
+
+ //
+
+ dm[3]= -253.6;
+ dm[4]= 258.;
+ dm[5]= 266.65;
+
+ //
+
+ dm[6]= -253.;
+ dm[7]= 258.;
+ dm[8]= 266.65;
+
+ dm[9]= -253.;
+ dm[10]= 258.;
+ dm[11]= 277.97;
+
+ dm[12]= 253.6;
+ dm[13]= 258.;
+ dm[14]= 277.97;
+
+ //
+
+ dm[15]= 253.6;
+ dm[16]= 265.2;
+ dm[17]= 277.95;
+
+ //
+
+ dm[18]= 255.6;
+ dm[19]= 265.2;
+ dm[20]= 277.95;
+
+
+ gMC->Gsvolu("TOIN","PCON",idtmed[3],dm,21);
+
+ //---------------------------------------------------------------
+ // shreds (G10) - TPC Rings
+ //---------------------------------------------------------------
+
+ gMC->Gsvolu("TPCR","TUBE",idtmed[12],dm,0);
+
+ dm[0]= 258.;
+ dm[1]= 266.65;
+ dm[2]= 0.3;
+
+ gMC->Gsposp("TPCR",1,"TOIN",0.,0.,-253.3,0,"ONLY",dm,3); // left bottom
+
+ //
+
+ dm[0]= 258.;
+ dm[1]= 270.9;
+ dm[2]= 0.3;
+
+ gMC->Gsposp("TPCR",2,"TOIN",0.,0.,253.3,0,"ONLY",dm,3); // right
+
+ //
+
+ dm[0]= 272.2;
+ dm[1]= 277.95;
+ dm[2]= 0.3;
+
+ gMC->Gsposp("TPCR",3,"TOIN",0.,0.,-250.7,0,"ONLY",dm,3); // left top
+
+ //----------------------------------------------------------------
+ // Tpc Outer Contaiment Vessel
+ // mother volume - Al, daughters - composite (sandwich)
+ //----------------------------------------------------------------
+
+ dm[0]= 0.;
+ dm[1]= 360.;
+ dm[2]=5.;
+
+ //
+
+ dm[3]= -250.4;
+ dm[4]= 272.2;
+ dm[5]= 277.95;
+
+ //
+
+ dm[6]= -248.4;
+ dm[7]= 272.2;
+ dm[8]= 277.95;
+
+ //
+
+ dm[9]= 253.6;
+ dm[10]= 272.2;
+ dm[11]= 277.95;
+
+ //
+
+ dm[12]= 253.6;
+ dm[13]= 265.2;
+ dm[14]= 277.95;
+
+ //
+
+ dm[15]= 255.6;
+ dm[16]= 265.2;
+ dm[17]= 277.95;
+
+ gMC->Gsvolu("TOCV","PCON",idtmed[4],dm,18);
+
+ // Daughter volumes
+
+ // Tpc SAndwich 1 - Al
+
+ dm[0]= 274.81;
+ dm[1]= 277.95;
+ dm[2]= 251.7;
+
+ gMC->Gsvolu("TSA1","TUBE",idtmed[4],dm,3);
+
+ // Tpc SAndwich 2 - Tedlar
+
+ dm[0] += 5.e-3;
+ dm[1] -= 5.e-3;
+
+ gMC->Gsvolu("TSA2","TUBE",idtmed[9],dm,3);
+
+ // Tpc SAndwich 3 - Kevlar
+
+ dm[0] += 5e-3;
+ dm[1] -= 5.e-3;
+
+ gMC->Gsvolu("TSA3","TUBE",idtmed[5],dm,3);
+
+ // Tpc SAndwich 4 - NOMEX honeycomb
+
+ dm[0] += 0.06;
+ dm[1] -= 0.06;
+
+ gMC->Gsvolu("TSA4","TUBE",idtmed[5],dm,3);
+
+ // 4->3->2->1->TOCV
+
+ gMC->Gspos("TSA4",1,"TSA3",0.,0.,0.,0,"ONLY");
+ gMC->Gspos("TSA3",1,"TSA2",0.,0.,0.,0,"ONLY");
+ gMC->Gspos("TSA2",1,"TSA1",0.,0.,0.,0,"ONLY");
+
+ gMC->Gspos("TSA1",1,"TOCV",0.,0.,2.6,0,"ONLY");
+
+ // TCOV-> TOIN
+
+ gMC->Gspos("TOCV",1,"TOIN",0.,0.,0.,0,"ONLY");
+
+ //-------------------------------------------------------
+ // Tpc Outer Field Cage
+ // mother volume - Al, daughters - composite (sandwich)
+ //-------------------------------------------------------
+
+ dm[0]=0.;
+ dm[1]=360.;
+ dm[2]=6.;
+
+ dm[3]= -253.;
+ dm[4]= 258.;
+ dm[5]= 277.95;
+
+ //
+
+ dm[6]= -251.;
+ dm[7]= 258.;
+ dm[8]= 277.95;
+
+ //
+
+ dm[9]= -251.;
+ dm[10]= 258.;
+ dm[11]= 260.05;
+
+ //
+
+ dm[12]= 251.;
+ dm[13]= 258.;
+ dm[14]= 260.05;
+
+ //
+
+ dm[15]= 251.;
+ dm[16]= 258.;
+ dm[17]= 260.05;
+
+ //
+
+ dm[18]= 253.;
+ dm[19]= 258.;
+ dm[20]= 270.9;
+
+ gMC->Gsvolu("TOFC","PCON",idtmed[4],dm,21);
+
+ // Daughter volumes
+
+ // Tpc SAndwich 5 - Al
+
+ dm[0]= 258.;
+ dm[1]= 260.05;
+ dm[2]= 251.7;
+
+ gMC->Gsvolu("TSA5","TUBE",idtmed[4],dm,3);
+
+ // Tpc SAndwich 6 - Tedlar
+
+ dm[0] += 5.e-3;
+ dm[1] -= 5.e-3;
+
+ gMC->Gsvolu("TSA6","TUBE",idtmed[9],dm,3);
+
+ // Tpc SAndwich 7 - Kevlar
+
+ dm[0] += 5.e-3;
+ dm[1] -= 5.e-3;
+
+ gMC->Gsvolu("TSA7","TUBE",idtmed[5],dm,3);
+
+ // Tpc SAndwich 8 - NOMEX
+
+ dm[0] += 0.02;
+ dm[1] -= 0.02;
+
+ gMC->Gsvolu("TSA8","TUBE",idtmed[6],dm,3);
+
+ // 8->7->6->5->TOFC
+
+ gMC->Gspos("TSA8",1,"TSA7",0.,0.,0.,0,"ONLY");
+ gMC->Gspos("TSA7",1,"TSA6",0.,0.,0.,0,"ONLY");
+ gMC->Gspos("TSA6",1,"TSA5",0.,0.,0.,0,"ONLY");
+
+ gMC->Gspos("TSA5",1,"TOFC",0.,0.,0.,0,"ONLY");
+
+ // TOFC->TOIN
+
+ gMC->Gspos("TOFC",1,"TOIN",0.,0.,0.,0,"ONLY");
+
+ // TOIN->TPC
+
+ gMC->Gspos("TOIN",1,"TPC ",0.,0.,0.,0,"ONLY");
+
+ //--------------------------------------------------------------------
+ // Tpc Inner INsulator (CO2)
+ //--------------------------------------------------------------------
+
+
+ dm[0]=0.;
+ dm[1]= 360.;
+ dm[2]= 15.;
+
+ //
+
+ dm[3]= -255.6;
+ dm[4]= 66.2;
+ dm[5]= 74.8;
+
+ //
+
+ Float_t tanL = (66.2-59.0)/(255.6-73.3); // tangent of the left cone part
+
+ dm[6]= -253.6;
+ dm[7]= 59.0+ (253.6-73.3)*tanL;
+ dm[8]= 74.8;
+
+ //
+
+ dm[9]= -253.6;
+ dm[10]= dm[7];
+ dm[11]= 79.2;
+
+ //
+
+ dm[12]= -73.3;
+ dm[13]= 59.0;
+ dm[14]= 79.2;
+
+ //
+
+ dm[15]= -73.3;
+ dm[16]= 56.9;
+ dm[17]= 79.2;
+
+ //
+
+ dm[18]= -72.1;
+ dm[19]= 59.6;
+ dm[20]= 79.2;
+
+ //
+
+ dm[21]= -72.1;
+ dm[22]= 60.65;
+ dm[23]= 79.2;
+
+ //
+
+ dm[24]= 72.1;
+ dm[25]= 60.65;
+ dm[26]= 79.2;
+
+ //
+
+ dm[27]= 72.1;
+ dm[28]= 59.6;
+ dm[29]= 79.2;
+
+ //
+
+ dm[30]= 73.3;
+ dm[31]= 56.9;
+ dm[32]= 79.2;
+
+ //
+
+ dm[33]= 73.3;
+ dm[34]= 59.0;
+ dm[35]= 79.2;
+
+ //
+
+ dm[36]= 250.4;
+ dm[37]= 66.0;
+ dm[38]= 79.2;
+
+ //
+
+ dm[39]= 253.0;
+ dm[40]= 66.0;
+ dm[41]= 79.2;
+
+ //
+
+ dm[42]= 253.0;
+ dm[43]= 75.3;
+ dm[44]= 79.2;
+
+ //
+
+ dm[45]= 253.6;
+ dm[46]= 75.3;
+ dm[47]= 79.2;
+
+ gMC->Gsvolu("TIIN","PCON",idtmed[3],dm,48);
+
+
+ //--------------------------------------------------------------------
+ // Tpc Inner Containment vessel, Left part
+ // mother volume - Al, daughter - composite (sandwich)
+ //--------------------------------------------------------------------
+
+ dm[0]= 0.;
+ dm[1]= 360.;
+ dm[2]= 8.;
+
+ //
+
+ dm[3]= -255.6;
+ dm[4]= 66.2;
+ dm[5]= 74.8;
+
+ //
+
+ Float_t cosL = 1./TMath::Sqrt(1.+tanL*tanL);
+ Float_t sandThick = 2.14; // cone composite thickness
+
+
+ //
+
+ dm[6]= -253.6;
+ dm[7]= 59.0 + (253.6-73.3)*tanL;
+ dm[8]= 74.8;
+
+ //
+
+ dm[9]= -253.6;
+ dm[10]= dm[7];
+ dm[11]= dm[7]+sandThick/cosL;
+
+ //
+
+ dm[12]= -75.6;
+ dm[13]= 59.0+(75.6-73.3)*tanL;
+ dm[14]= dm[13]+sandThick/cosL;
+
+ //
+
+ dm[15]= -75.6;
+ dm[16]= dm[13];
+ dm[17]= 60.65;
+
+ //
+
+ dm[18]= -73.3;
+ dm[19]= 59.0;
+ dm[20]= 60.65;
+
+ //
+
+ dm[21]= -73.3;
+ dm[22]= 56.9;
+ dm[23]= 60.65;
+
+ //
+
+ dm[24]= -72.1;
+ dm[25]= 56.9;
+ dm[26]= 60.65;
+
+ gMC->Gsvolu("TICL","PCON",idtmed[4],dm,27);
+
+ // Daughter volumes
+
+ // Tpc SAndwich 9 - Al
+
+ dm[0]= 0.;
+ dm[1]= 360.;
+ dm[2]= 2.;
+
+ //
+
+ dm[3]= - 254.3;
+ dm[4]= 59.0+(254.3-73.3)*tanL;
+ dm[5]= dm[4]+sandThick/cosL;
+
+ //
+
+ dm[6]= -78.3;
+ dm[7]= 59.0+(78.3-73.3)*tanL;
+ dm[8]= dm[7]+sandThick/cosL;
+
+ //
+
+ gMC->Gsvolu("TSA9","PCON",idtmed[4],dm,9);
+
+ // Tpc SAndwich 10 - Tedlar
+
+ dm[4]+= 5.e-3/cosL;
+ dm[5]-= 5.e-3/cosL;
+
+ //
+
+ dm[7]+= 5.e-3/cosL;
+ dm[8]+= 5.e-3/cosL;
+
+ gMC->Gsvolu("TS10","PCON",idtmed[9],dm,9);
+
+ // Tpc SAndwich 11 - Kevlar
+
+ dm[4]+= 5.e-3/cosL;
+ dm[5]-= 5.e-3/cosL;
+
+ //
+
+ dm[7]+= 5.e-3/cosL;
+ dm[8]+= 5.e-3/cosL;
+
+ gMC->Gsvolu("TS11","PCON",idtmed[5],dm,9);
+
+ // Tpc SAndwich 12 - NOMEX
+
+ dm[4]+= 0.06/cosL;
+ dm[5]-= 0.06/cosL;
+
+ //
+
+ dm[7]+= 0.06/cosL;
+ dm[8]+= 0.06/cosL;
+
+ gMC->Gsvolu("TS12","PCON",idtmed[6],dm,9);
+
+ // 12->11->10->9
+
+ gMC->Gspos("TS12",1,"TS11",0.,0.,0.,0,"ONLY");
+ gMC->Gspos("TS11",1,"TS10",0.,0.,0.,0,"ONLY");
+ gMC->Gspos("TS10",1,"TSA9",0.,0.,0.,0,"ONLY");
+
+ // TSA9->TICL
+
+ gMC->Gspos("TSA9",1,"TICL",0.,0.,0.,0,"ONLY");
+
+ //--------------------------------------------------------------------
+ // Tpc Inner Containment vessel, Right part
+ // mother volume - Al, daughter - composite (sandwich)
+ //--------------------------------------------------------------------
+
+ dm[0]= 0.;
+ dm[1]= 360.;
+ dm[2]=8.;
+
+ //
+
+ dm[3]= 72.1;
+ dm[4]= 56.9;
+ dm[5]= 60.65;
+
+ //
+
+ dm[6]= 73.3;
+ dm[7]= 56.9;
+ dm[8]= 60.65;
+
+ //
+
+ dm[9]= 73.3;
+ dm[10]= 59.0;
+ dm[11]= 60.65;
+
+ //
+
+ Float_t tanR = (66.0-59.0)/(250.5-73.3); // to avoid accuracy problems
+ Float_t cosR = 1./TMath::Sqrt(1.+tanR*tanR); //as above
+
+ //
+
+ dm[12]= 75.6;
+ dm[13]= 59.0+(75.6-73.3)*tanR;
+ dm[14]= 60.65;
+
+ //
+
+ dm[15]= 75.6;
+ dm[16]= dm[13];
+ dm[17]= dm[16]+sandThick/cosR;
+
+ //
+
+ dm[18]= 248.4;
+ dm[19]= 59.0+(248.4-73.3)*tanR;
+ dm[20]= dm[19]+sandThick/cosR;
+
+ //
+
+ dm[21]= 248.4;
+ dm[22]= dm[19];
+ dm[23]= 70.2;
+
+ //
+
+ dm[24]= 250.4;
+ dm[25]= 66.0;
+ dm[26]= 70.2;
+
+ gMC->Gsvolu("TICR","PCON",idtmed[4],dm,27);
+
+
+
+ // Daughter volumes
+
+ // Tpc SAndwich 13 - Al
+
+ dm[0]= 0.;
+ dm[1]= 360.;
+ dm[2]= 2.;
+
+ //
+
+ dm[3]= 78.3;
+ dm[4]= 59.0+(78.3-73.3)*tanR;
+ dm[5]= dm[4]+sandThick/cosR;
+
+ //
+
+ dm[6]= 249.1;
+ dm[7]= 59.0+(249.1-73.3)*tanR;
+ dm[8]= dm[7]+sandThick/cosR;
+
+ //
+
+ gMC->Gsvolu("TS13","PCON",idtmed[4],dm,9);
+
+ // Tpc SAndwich 14 - Tedlar
+
+ dm[4]+= 5.e-3/cosR;
+ dm[5]-= 5.e-3/cosR;
+
+ //
+
+ dm[7]+= 5.e-3/cosR;
+ dm[8]+= 5.e-3/cosR;
+
+ gMC->Gsvolu("TS14","PCON",idtmed[9],dm,9);
+
+ // Tpc SAndwich 15 - Kevlar
+
+ dm[4]+= 5.e-3/cosR;
+ dm[5]-= 5.e-3/cosR;
+
+ //
+
+ dm[7]+= 5.e-3/cosR;
+ dm[8]+= 5.e-3/cosR;
+
+ gMC->Gsvolu("TS15","PCON",idtmed[5],dm,9);
+
+ // Tpc SAndwich 16 - NOMEX
+
+ dm[4]+= 0.06/cosR;
+ dm[5]-= 0.06/cosR;
+
+ //
+
+ dm[7]+= 0.06/cosR;
+ dm[8]+= 0.06/cosR;
+
+ gMC->Gsvolu("TS16","PCON",idtmed[6],dm,9);
+
+ // 16->15->14->13
+
+ gMC->Gspos("TS16",1,"TS15",0.,0.,0.,0,"ONLY");
+ gMC->Gspos("TS15",1,"TS14",0.,0.,0.,0,"ONLY");
+ gMC->Gspos("TS14",1,"TS13",0.,0.,0.,0,"ONLY");
+
+ // TS12->TICR
+
+ gMC->Gspos("TS13",1,"TICR",0.,0.,0.,0,"ONLY");
+
+ //------------------------------------------------------
+ // Tpc Inner Field Cage
+ // mother volume - Al, daughters - composite (sandwich)
+ //------------------------------------------------------
+
+ dm[0]= 0.;
+ dm[1]= 360.;
+ dm[2]=6.;
+
+ //
+
+ dm[3]= -253.0;
+ dm[4]= 70.7;
+ dm[5]= 79.2;
+
+ //
+
+ dm[6]= -251.0;
+ dm[7]= 70.7;
+ dm[8]= 79.2;
+
+ //
+
+ dm[9]= -251.0;
+ dm[10]= 77.15;
+ dm[11]= 79.2;
+
+ //
- // ----------------------------------------------------
- // FIELD CAGE WITH ENDCAPS - G10
- // THIS IS ALSO A TPC MOTHER VOLUME
- // ----------------------------------------------------
+ dm[12]= 251.0;
+ dm[13]= 77.15;
+ dm[14]= 79.2;
+
+ //
+
+ dm[15]= 251.0;
+ dm[16]= 66.0;
+ dm[17]= 79.2;
+
+ //
+
+ dm[18]= 253.0;
+ dm[19]= 66.0;
+ dm[20]= 79.2;
+
+ gMC->Gsvolu("TIFC","PCON",idtmed[4],dm,21);
+
+ // Daughter volumes
+
+ // Tpc Sandwich 17 - Al
+
+ dm[0]= 77.15;
+ dm[1]= 79.2;
+ dm[2]= 251.7;
+
+ gMC->Gsvolu("TS17","TUBE",idtmed[4],dm,3);
+
+ // Tpc Sandwich 18 - Tedlar
+
+ dm[0]+= 5.e-3;
+ dm[1]-= 5.e-3;
+
+ gMC->Gsvolu("TS18","TUBE",idtmed[9],dm,3);
+
+ // Tpc Sandwich 19 - Kevlar
+
+ dm[0]+= 5.e-3;
+ dm[1]-= 5.e-3;
+
+ gMC->Gsvolu("TS19","TUBE",idtmed[5],dm,3);
+
+ // Tpc Sandwich 20 - NOMEX
+
+ dm[0]+= 0.06;
+ dm[1]-= 0.06;
+
+ gMC->Gsvolu("TS20","TUBE",idtmed[6],dm,3);
+
+ // 20->19->18->17
+
+ gMC->Gspos("TS20",1,"TS19",0.,0.,0.,0,"ONLY");
+ gMC->Gspos("TS19",1,"TS18",0.,0.,0.,0,"ONLY");
+ gMC->Gspos("TS18",1,"TS17",0.,0.,0.,0,"ONLY");
+
+ // TS17->TIFC
+
+ gMC->Gspos("TS17",1,"TIFC",0.,0.,0.,0,"ONLY");
+
+ // TPC Rings
+
+ dm[0]= 70.7;
+ dm[1]= 79.2;
+ dm[2]= 0.3;
+
+ gMC->Gsposp("TPCR",4,"TIIN",0.,0.,-253.3,0,"ONLY",dm,3);
+
+ dm[0]= 66.0;
+ dm[1]= 70.2;
+
+ gMC->Gsposp("TPCR",5,"TIIN",0.,0.,250.7,0,"ONLY",dm,3);
+
+ dm[0]= 75.3;
+ dm[1]= 79.2;
+
+ gMC->Gsposp("TPCR",6,"TIIN",0.,0.,253.3,0,"ONLY",dm,3);
+
+ // TICL->TIIN
+
+ gMC->Gspos("TICL",1,"TIIN",0.,0.,0.,0,"ONLY");
- dm[0] = 76.;
- dm[1] = 278.;
- dm[2] = 275.;
+ // TICR->TIIN
- gMC->Gsvolu("TPC ", "TUBE", idtmed[8], dm, 3);
+ gMC->Gspos("TICR",1,"TIIN",0.,0.,0.,0,"ONLY");
- //-----------------------------------------------------
- // Endcap cover c-fibre 0.86% X0
- //-----------------------------------------------------
+ // TIFC->TIIN
- dm[0] = 78.;
- dm[1] = 258.;
- dm[2] = 0.95;
+ gMC->Gspos("TIFC",1,"TIIN",0.,0.,0.,0,"ONLY");
- gMC->Gsvolu("TPEC","TUBE",idtmed[10],dm,3);
+ // Tpc Sandwich 21 - Al (central barrel)
- //-----------------------------------------------------
- // Drift gas , leave 2 cm at the outer radius
- // and inner raddius
- //-----------------------------------------------------
+ dm[0]= 77.15;
+ dm[1]= 79.2;
+ dm[2]= 75.2;
- dm[0] = 78.;
- dm[1] = 258.;
- dm[2] = 250.;
+ gMC->Gsvolu("TS21","TUBE",idtmed[4],dm,3);
- gMC->Gsvolu("TGAS", "TUBE", idtmed[3], dm, 3);
+ // Tpc Sandwich 22 - Tedlar (central barrel)
- //------------------------------------------------------
- // membrane holder - carbon fiber
- //------------------------------------------------------
+ dm[0]+= 5.e-3;
+ dm[1]-= 5.e-3;
+ gMC->Gsvolu("TS22","TUBE",idtmed[9],dm,3);
- gMC->Gsvolu("TPMH","TUBE",idtmed[6],dm,0);
+ // Tpc Sandwich 23 - Kevlar (central barrel)
- dm[0] = 252.;
- dm[1] = 258.;
- dm[2] = 0.2;
+ dm[0]+= 5.e-3;
+ dm[1]-= 5.e-3;
- gMC->Gsposp("TPMH",1,"TGAS",0.,0.,0.,0,"ONLY",dm,3);
-
- dm[0] = 78.;
- dm[1] = 82.;
- dm[2] = 0.1;
+ gMC->Gsvolu("TS23","TUBE",idtmed[5],dm,3);
- gMC->Gsposp("TPMH",2,"TGAS",0.,0.,0.,0,"ONLY",dm,3);
+ // Tpc Sandwich 24 - NOMEX (central barrel)
- //----------------------------------------------------------
- // HV membrane - 25 microns of mylar
- //----------------------------------------------------------
+ dm[0]+= 0.02;
+ dm[1]-= 0.02;
- dm[0] = 82.;
- dm[1] = 252.;
- dm[2] = 0.00125;
+ gMC->Gsvolu("TS24","TUBE",idtmed[6],dm,3);
- gMC->Gsvolu("TPHV","TUBE",idtmed[5],dm,3);
+ // 24->23->22->21
- gMC->Gspos("TPHV",1,"TGAS",0.,0.,0.,0,"ONLY");
+ gMC->Gspos("TS24",1,"TS23",0.,0.,0.,0,"ONLY");
+ gMC->Gspos("TS23",1,"TS22",0.,0.,0.,0,"ONLY");
+ gMC->Gspos("TS22",1,"TS21",0.,0.,0.,0,"ONLY");
- gMC->Gspos("TGAS",1,"TPC ",0.,0.,0.,0,"ONLY");
+ gMC->Gspos("TS21",1,"TIIN",0.,0.,0.,0,"ONLY");
- //----------------------------------------------------------
- // "side" gas volume, the same as the drift gas
- // the readout chambers are placed there.
- //----------------------------------------------------------
+ // put everything into the TPC
- dm[0] = 78.;
- dm[1] = 258.;
- dm[2] = 0.5*(275. - 250.);
-
- gMC->Gsvolu("TPSG", "TUBE", idtmed[2], dm, 3);
+ gMC->Gspos("TIIN",1,"TPC ",0.,0.,0.,0,"ONLY");
- Float_t z_side = dm[2]; // 1/2 of the side gas thickness
- //-----------------------------------------------------------
- // Readout chambers , 25% of X0, I use Al as the material
- //-----------------------------------------------------------
+ //---------------------------------------------------------
+ // Tpc Dift Gas volume Nonsensitive (Ne-CO2 90/10)
+ // and its daughters (HV membrane, rods, readout chambers)
+ //---------------------------------------------------------
- Float_t InnerOpenAngle = fTPCParam->GetInnerAngle();
- Float_t OuterOpenAngle = fTPCParam->GetOuterAngle();
+ dm[0]= 79.2;
+ dm[1]= 258.0;
+ dm[2]= 253.6;
- Float_t InnerAngleShift = fTPCParam->GetInnerAngleShift();
- Float_t OuterAngleShift = fTPCParam->GetOuterAngleShift();
+ gMC->Gsvolu("TDGN","TUBE",idtmed[1],dm,3); // nonsensitive
- Float_t InSecLowEdge = fTPCParam->GetInSecLowEdge();
- Float_t InSecUpEdge = fTPCParam->GetInSecUpEdge();
+ // sector opening angles
- Float_t OuSecLowEdge = fTPCParam->GetOuSecLowEdge();
- Float_t OuSecUpEdge = fTPCParam->GetOuSecUpEdge();
+ Float_t innerOpenAngle = fTPCParam->GetInnerAngle();
+ Float_t outerOpenAngle = fTPCParam->GetOuterAngle();
+ // sector angle shift
- Float_t SecThick = 2.225; // Al
+ Float_t innerAngleShift = fTPCParam->GetInnerAngleShift();
- Float_t edge = fTPCParam->GetEdge();
+ // All above parameters are identical for inner and outer
+ // sectors. The distinction is kept for the historical reasons
+ // and eventually will disappear.
- // S (Inner) sectors
+ Float_t tanAlpha = TMath::Tan(0.5*innerOpenAngle);
+ Float_t cosAlpha = TMath::Sqrt(1.+tanAlpha*tanAlpha);
+ Float_t space;
- dm[0] = InSecLowEdge*TMath::Tan(0.5*InnerOpenAngle)-edge;
- dm[1] = InSecUpEdge*TMath::Tan(0.5*InnerOpenAngle)-edge;
- dm[2] = 0.5*SecThick;
- dm[3] = 0.5*(InSecUpEdge-InSecLowEdge);
+ //-------------------------------------------------------------------------
+ // Tpc Inner Readout Chambers
+ //-------------------------------------------------------------------------
- Float_t xCenterS = InSecLowEdge+dm[3];
+ dm[0]= 14.483;
+ dm[1]= 23.3345;
+ dm[2]= 1.6; // thickness
+ dm[3]= 25.1;
- gMC->Gsvolu("TRCS", "TRD1", idtmed[0], dm, 4);
+ gMC->Gsvolu("TIRC","TRD1",idtmed[4],dm,4);
- // L (Outer) sectors
+ // this volume will be positioned in the empty space
+ // of the end-cap to avoid overlaps
- dm[0] = OuSecLowEdge*TMath::Tan(0.5*OuterOpenAngle)-edge;
- dm[1] = OuSecUpEdge*TMath::Tan(0.5*OuterOpenAngle)-edge;
- dm[2] = 0.5*SecThick;
- dm[3] = 0.5*(OuSecUpEdge-OuSecLowEdge);
+ dm[0]= 13.7305;
+ dm[1]= 21.1895;
+ dm[2]= 2.25;
+ dm[3]= 21.15;
- Float_t xCenterL = OuSecLowEdge+dm[3];
+ gMC->Gsvolu("TIC1","TRD1",idtmed[4],dm,4);
- gMC->Gsvolu("TRCL", "TRD1", idtmed[0], dm, 4);
+ //------------------------------------------------
+ // Tpc Inner readout chamber Pad Plane
+ //------------------------------------------------
- Float_t z1 = -z_side + SecThick*0.5;
+ dm[0]= 14.483;
+ dm[1]= 23.3345;
+ dm[2]= 0.5;
+ dm[3]= 25.1;
- //------------------------------------------------------------------
- // S sectors - "gas sectors" (TRD1)
- //------------------------------------------------------------------
+ gMC->Gsvolu("TIPP","TRD1",idtmed[12],dm,4);
- dm[0] = InSecLowEdge*TMath::Tan(0.5*InnerOpenAngle)-0.01;
- dm[1] = InSecUpEdge*TMath::Tan(0.5*InnerOpenAngle)-0.01;
- dm[2] = 0.5*(250. - 0.001);
- dm[3] = 0.5*(InSecUpEdge-InSecLowEdge);
+ //
- gMC->Gsvolu("TSGA", "TRD1", idtmed[4], dm, 4); // sensitive
+ dm[0] -= 1.218511934;
+ dm[1] -= 1.218511934;
+ dm[2] = 0.35;
- // -------------------------------------------------------------
- // Only for the debugging purpose and resolution calculation
- // Sensitive strips at the pad-row center
- // -------------------------------------------------------------
+ gMC->Gsvolu("TIC3","TRD1",idtmed[1],dm,4);
- Int_t ns;
+ gMC->Gspos("TIC3",1,"TIPP",0.,0.15,0.,0,"ONLY");
- if(fSens>=0){
+ gMC->Gspos("TIPP",1,"TIRC",0.,1.1,0.,0,"ONLY");
- Float_t r1,r2,zz;
+ //----------------------------------------------
+ // Tpc Readout Chambers Empty spaces - for both
+ // inner and outer sectors
+ //----------------------------------------------
- Float_t StripThick = 0.01; // 100 microns
- Float_t dead = fTPCParam->GetDeadZone();
+ gMC->Gsvolu("TRCE","TRD1",idtmed[0],dm,0);
- gMC->Gsvolu("TSST", "TRD1", idtmed[4], dm, 0);
+ // Inner sector - 4 spaces
- dm[2] = 0.5*(250. - 0.002);
- dm[3] = 0.5 * StripThick;
+ dm[3] = 4.7625;
+ dm[0] = 12.472;
- for (ns = 0; ns < fTPCParam->GetNRowLow(); ns++) {
+ Float_t rr = 90.52;
+ Float_t zz;
- r1 = fTPCParam->GetPadRowRadiiLow(ns);
- r2 = r1 + StripThick;
- dm[0] = r1 * TMath::Tan(0.5*InnerOpenAngle) - dead;
- dm[1] = r2 * TMath::Tan(0.5*InnerOpenAngle) - dead;
+ zz= -12.7875;
+
+ space = rr*tanAlpha-dm[0];
- zz = -InSecLowEdge -0.5*(InSecUpEdge-InSecLowEdge);
- zz += r1;
- zz += dm[3];
+ for(Int_t nsLow=0;nsLow<4;nsLow++){
- gMC->Gsposp("TSST", ns+1, "TSGA", 0., 0., zz, 0, "ONLY", dm, 4);
+ rr += 9.525;
+ dm[1]= rr*tanAlpha - space;
-
- }
+ dm[2]=0.8;
- gMC->Gsord("TSGA", 3);
-
- } // if strips selected
+ gMC->Gsposp("TRCE",nsLow+1,"TIRC",0.,-0.8,zz,0,"ONLY",dm,4);
-
- //-----------------------------------------------------------------
- // L sectors - "gas sectors" (PGON to avoid overlaps)
- //-----------------------------------------------------------------
+ //
- dm[0] = 360.*kDegrad - 0.5*OuterOpenAngle;
- dm[0] *= kRaddeg;
- dm[0] = (Float_t)TMath::Nint(dm[0]);
+ dm[2]= 1.2;
- dm[1] = OuterOpenAngle*kRaddeg;
- dm[1] = (Float_t)TMath::Nint(dm[1]);
+ gMC->Gsposp("TRCE",nsLow+5,"TIC1",0.,1.05,zz-2.1,0,"ONLY",dm,4);
- dm[2] = 1.;
- dm[3] = 4.;
+ rr += 0.4;
+ dm[0] = rr*tanAlpha - space;
+ zz += (0.4+9.525);
- dm[4] = 0.002;
- dm[5] = OuSecLowEdge;
- dm[6] = 252.*TMath::Cos(0.5*OuterOpenAngle)-0.002;
+ }
- dm[7] = dm[4]+0.2;
- dm[8] = dm[5];
- dm[9] = dm[6];
+ dm[0]= 12.472;
+ // dm[1] - this is the dm[1] from the previous TRCE
+ dm[2]= 1.05;
+ dm[3]= 19.65;
- dm[10] = dm[7];
- dm[11] = OuSecLowEdge;
- dm[12] = OuSecUpEdge;
+ gMC->Gsposp("TRCE",9,"TIC1",0.,-1.2,0.,0,"ONLY",dm,4);
- dm[13] = 250.;
- dm[14] = dm[11];
- dm[15] = dm[12];
+ //
+ // TPc Space for Connectors
+ //
- gMC->Gsvolu("TLGA","PGON",idtmed[4],dm,16);
+ dm[0]= .3;
+ dm[1]= .3;
+ dm[2]= 4.5;
- if (fSens >= 0) {
-
- Float_t rmax = dm[6];
- Float_t r1,r2;
- Float_t dead = fTPCParam->GetDeadZone();
+ gMC->Gsvolu("TPSC","BOX ",idtmed[0],dm,3);
- Float_t StripThick = 0.01; // 100 microns
+ // TPC Connectors
- gMC->Gsvolu("TLST", "PGON", idtmed[4], dm, 0);
+ dm[0]= .25;
+ dm[1]= .15;
+ dm[2]= 3.75;
- dm[0] = 360.*kDegrad - 0.5*OuterOpenAngle;
- dm[0] *= kRaddeg;
- dm[0] = (Float_t)TMath::Nint(dm[0]);
+ gMC->Gsvolu("TPCC","BOX ",idtmed[13],dm,3);
- dm[1] = OuterOpenAngle*kRaddeg;
- dm[1] = (Float_t)TMath::Nint(dm[1]);
+ gMC->Gspos("TPCC",1,"TPSC",0.,0.15,0.,0,"ONLY");
- dm[2] = 1.;
- dm[3] = 2.;
+ zz = -12.7875;
- dm[7] = 250.;
+ Float_t alpha;
+ Float_t astep;
- Float_t xx = dead/TMath::Tan(0.5*OuterOpenAngle);
+ Float_t phi1,phi2,phi3,theta1,theta2,theta3; // rotation angles
- for(ns=0;ns<fTPCParam->GetNRowUp();ns++){
+ // inner part of the inner sector - 2 x 20 holes
+
+ astep = 20.00096874/19.;
- r1 = fTPCParam->GetPadRowRadiiUp(ns)-xx;
- r2 = r1 + StripThick;
+ alpha = 10.00048437-astep;
- dm[5] = r1;
- dm[6] = r2;
+ Float_t x1,x2;
- dm[8] = r1;
- dm[9] = r2;
+ x1 = 13.31175725;
+ x1 -= 0.996357832;
- if(r2+xx < rmax){
- dm[4] = 0.002;
- }
- else{
- dm[4] = 0.202;
- }
+ x2 = 15.06180253;
+ x2 -= 1.163028812;
- gMC->Gsposp("TLST",ns+1,"TLGA",xx,0.,0.,0,"ONLY",dm,10);
+ Int_t ncon;
- }
+ for(ncon=0;ncon<20;ncon++){
- gMC->Gsord("TLGA", 4);
+ phi1 = 0.;
+ theta1 = 90.+alpha;
+ phi2=90.;
+ theta2 = 90.;
+ phi3 = (alpha>0) ? 0. : 180.;
+ theta3 = TMath::Abs(alpha);
- } // if strips selected
+ AliMatrix(idrotm[nRotMat], theta1, phi1, theta2, phi2, theta3, phi3);
- //------------------------------------------------------------------
- // Positioning of the S-sector readout chambers
- //------------------------------------------------------------------
+
- Float_t zs = 0.5*(250.+0.002);
+ gMC->Gspos("TPSC",ncon+1,"TIRC",x1,0.3,-12.7875,idrotm[nRotMat],"ONLY");
+ gMC->Gspos("TPSC",ncon+21,"TIRC",x2,0.3,-2.8625,idrotm[nRotMat],"ONLY");
- Float_t theta1,theta2,theta3;
- Float_t phi1,phi2,phi3;
- Float_t alpha;
- Float_t x,y;
- for(ns=0;ns<nInnerSector;ns++){
-
- phi1 = ns * InnerOpenAngle + 270.*kDegrad + InnerAngleShift;
- phi1 *= kRaddeg; // in degrees
+ x1 -= 1.296357833;
+ x2 -= 1.463028812;
- phi1 = (Float_t)TMath::Nint(phi1);
+ alpha -= astep;
+ nRotMat++;
- if (phi1 > 360.) phi1 -= 360.;
-
- theta1 = 90.;
- phi2 = 90.;
- theta2 = 180.;
- phi3 = ns * InnerOpenAngle + InnerAngleShift;
- phi3 *= kRaddeg; // in degrees
+ }
- phi3 = (Float_t)TMath::Nint(phi3);
-
- if(phi3 > 360.) phi3 -= 360.;
+ // outer part of the inner sector - 2 x 25 holes
- theta3 = 90.;
+ astep = 20.00096874/24.;
+ alpha = 10.00048437-astep;
- alpha = phi3*kDegrad;
+ x1 = 16.81184781;
+ x1 -= 1.016295986;
+
+ x2 = 18.5618931;
+ x2 -= 1.150914854;
+
+ for(ncon=0;ncon<25;ncon++){
+
+ phi1 = 0.;
+ theta1 = 90.+alpha;
+ phi2=90.;
+ theta2 = 90.;
+ phi3 = (alpha>0) ? 0. : 180.;
+ theta3 = TMath::Abs(alpha);
+
+ AliMatrix(idrotm[nRotMat], theta1, phi1, theta2, phi2, theta3, phi3);
- x = xCenterS * TMath::Cos(alpha);
- y = xCenterS * TMath::Sin(alpha);
- AliMatrix(idrotm[nRotMat], theta1, phi1, theta2, phi2, theta3, phi3);
-
- gMC->Gspos("TRCS", ns+1, "TPSG", x, y, z1, idrotm[nRotMat], "ONLY");
- if(fSecAL < 0){
+ gMC->Gspos("TPSC",ncon+41,"TIRC",x1,0.3,7.0625,idrotm[nRotMat],"ONLY");
+ gMC->Gspos("TPSC",ncon+66,"TIRC",x2,0.3,16.9875,idrotm[nRotMat],"ONLY");
- //---------------------------------------------------------------
- // position all sectors
- //---------------------------------------------------------------
- gMC->Gspos("TSGA",ns+1,"TGAS",x,y,zs,idrotm[nRotMat], "ONLY");
- gMC->Gspos("TSGA",ns+1+nInnerSector,"TGAS",x,y,-zs,idrotm[nRotMat], "ONLY");
- }
+ x1 -= 1.316295986;
+ x2 -= 1.450914854;
- else{
+ alpha -= astep;
+ nRotMat++;
- //---------------------------------------------------------------
- // position selected sectors
- //---------------------------------------------------------------
+ }
- for(Int_t sel=0;sel<6;sel++){
+ //--------------------------------------------------------------------------
+ // TPC Outer Readout Chambers
+ // this is NOT a final design
+ //--------------------------------------------------------------------------
- if(fSecLows[sel] == ns){
- gMC->Gspos("TSGA", ns+1, "TGAS", x, y, zs, idrotm[nRotMat], "ONLY");
- }
- else if(fSecLows[sel] == ns+nInnerSector){
- gMC->
- Gspos("TSGA",ns+1+nInnerSector,"TGAS", x, y,-zs,idrotm[nRotMat],"ONLY");
- }
- }
- }
+ dm[0]= 23.3875;
+ dm[1]= 43.524;
+ dm[2]= 1.5; //thickness
+ dm[3]= 57.1;
- nRotMat++;
+ gMC->Gsvolu("TORC","TRD1",idtmed[4],dm,4);
- }
-
- //-------------------------------------------------------------------
- // Positioning of the L-sectors readout chambers
- //-------------------------------------------------------------------
-
- for(ns=0;ns<nOuterSector;ns++){
- phi1 = ns * OuterOpenAngle + 270.*kDegrad + OuterAngleShift;
- phi1 *= kRaddeg; // in degrees
+ //------------------------------------------------
+ // Tpc Outer readout chamber Pad Plane
+ //------------------------------------------------
- phi1 = (Float_t)TMath::Nint(phi1);
-
+ dm[2]= 0.5;
- if (phi1 > 360.) phi1 -= 360.;
-
- theta1 = 90.;
- phi2 = 90.;
- theta2 = 180.;
- phi3 = ns * OuterOpenAngle+OuterAngleShift;
- phi3 *= kRaddeg; // in degrees
+ gMC->Gsvolu("TOPP","TRD1",idtmed[12],dm,4);
- phi3 = (Float_t)TMath::Nint(phi3);
+ dm[0] -= 1.218511934;
+ dm[1] -= 1.218511934;
+ dm[2] = 0.35;
-
- if(phi3 > 360.) phi3 -= 360.;
+ gMC->Gsvolu("TOC3","TRD1",idtmed[1],dm,4);
- theta3 = 90.;
+ gMC->Gspos("TOC3",1,"TOPP",0.,0.15,0.,0,"ONLY");
- alpha = phi3*kDegrad;
+ gMC->Gspos("TOPP",1,"TORC",0.,1.0,0.,0,"ONLY");
- x = xCenterL * TMath::Cos(alpha);
- y = xCenterL * TMath::Sin(alpha);
-
- AliMatrix(idrotm[nRotMat], theta1, phi1, theta2, phi2, theta3, phi3);
-
+ // empty space
- gMC->Gspos("TRCL", ns+1, "TPSG", x, y, z1, idrotm[nRotMat], "ONLY");
- nRotMat++;
+ dm[0]= 21.035;
+ dm[1]= 38.7205;
+ dm[2]= 0.7;
+ dm[3]= 50.15;
- }
+ gMC->Gsposp("TRCE",10,"TORC",0.,-0.8,-2.15,0,"ONLY",dm,4);
- //-------------------------------------------------------------------
- // Positioning of the L-sectors (gas sectors)
- //-------------------------------------------------------------------
+ dm[0]= 22.2935;
+ dm[1]= 40.5085;
+ dm[2]= 2.25;
+ dm[3]= 51.65;
- for(ns=0;ns<nOuterSector;ns++){
+ gMC->Gsvolu("TOC1","TRD1",idtmed[4],dm,4);
+
+ dm[0]= 21.35;
+ dm[1]= 38.7205;
+ dm[2]= 2.25;
+ dm[3]= 50.15;
+
+ gMC->Gsposp("TRCE",11,"TOC1",0.,0.,0.,0,"ONLY",dm,4);
- phi1 = ns*OuterOpenAngle + OuterAngleShift;
- phi1 *= kRaddeg;
-
- phi1 = (Float_t)TMath::Nint(phi1);
- if(phi1>360.) phi1 -= 360.;
- theta1 = 90.;
- phi2 = 90. + phi1;
- if(phi2>360.) phi2 -= 360.;
+ //-----------------------------------------------
+ // Tpc Services Support Wheel
+ //-----------------------------------------------
- theta2 = 90.;
+ dm[0]=0.;
+ dm[1]=360.;
+ dm[2]=18.;
+ dm[3]=2.;
- phi3 = 0.;
- theta3 = 0.;
+ dm[4]= -5.;
+ dm[5]= 77.017;
+ dm[6]= 255.267;
- if(fSecAU < 0) {
+ dm[7]= 5.;
+ dm[8]= dm[5];
+ dm[9]= dm[6];
- //--------------------------------------------------------------
- // position all sectors
- //--------------------------------------------------------------
+ gMC->Gsvolu("TSSW","PGON",idtmed[4],dm,10);
- AliMatrix(idrotm[nRotMat], theta1, phi1, theta2, phi2, theta3, phi3);
+ // Tpc Services Wheel Cover
- gMC->Gspos("TLGA",ns+1,"TGAS" ,0.,0.,0.,idrotm[nRotMat],"ONLY");
+ dm[4]= -0.5;
+ dm[7]= 0.5;
- nRotMat++;
+ gMC->Gsvolu("TSWC","PGON",idtmed[4],dm,10);
+
+ // Tpc Service wheel Cover Empty space
- // reflection !!
+ dm[0]= 10.99;
+ dm[1]= 39.599;
+ dm[2]= .5;
+ dm[3]= 81.125;
- phi3 = 0.;
- theta3 = 180.;
-
- AliMatrix(idrotm[nRotMat], theta1, phi1, theta2, phi2, theta3, phi3);
+ gMC->Gsvolu("TSCE","TRD1",idtmed[0],dm,4);
+
+ // Tpc services Wheel Empty Spaces
+
+ dm[0]= 13.18017507;
+ dm[1]= 44.61045938;
+ dm[2]= 4.;
+ dm[3]= 89.125;
+
+ gMC->Gsvolu("TWES","TRD1",idtmed[0],dm,4);
+
+ // Tpc Services Wheel Bars
+
+ gMC->Gsvolu("TSWB","TRD1",idtmed[4],dm,0);
+
+ // bars-> TWES
+
+ dm[2]= 4.;
+ dm[3]= .4;
+
+ dm[0]= 13.8149522;
+ dm[1]= 13.95601379;
- gMC->Gspos("TLGA",ns+1+nOuterSector,"TGAS" ,0.,0.,0.,idrotm[nRotMat],"ONLY");
-
- nRotMat++;
- }
+ gMC->Gsposp("TSWB",1,"TWES",0.,0.,-85.125,0,"ONLY",dm,4);
- else{
+ dm[0]= 43.83462067;
+ dm[1]= 43.97568225;
- //---------------------------------------------------------------
- // position selected sectors
- //---------------------------------------------------------------
+ gMC->Gsposp("TSWB",2,"TWES",0.,0.,85.125,0,"ONLY",dm,4);
- for(Int_t sel=0;sel<12;sel++){
+ // TPc ELectronics - right now 30% X0 Si
- if(fSecUps[sel] == ns+2*nInnerSector){
-
- AliMatrix(idrotm[nRotMat], theta1, phi1, theta2, phi2, theta3, phi3);
- gMC->Gspos("TLGA",ns+1,"TGAS" ,0.,0.,0.,idrotm[nRotMat],"ONLY");
- nRotMat++;
+ dm[0]= 14.03813696;
+ dm[1]= 43.3524075;
+ dm[2]= 1.404;
+ dm[3]= 83.125;
- }
- else if(fSecUps[sel] == ns+2*nInnerSector+nOuterSector){
+ gMC->Gsvolu("TPEL","TRD1",idtmed[11],dm,4);
+ gMC->Gspos("TPEL",1,"TWES",0.,0.,0.,0,"ONLY");
- // reflection
+ //--------------------------------------------------------------------------
+ // End caps
+ //--------------------------------------------------------------------------
- phi3 = 0.;
- theta3 = 180.;
+ // TPc Main Wheel - Al
- AliMatrix(idrotm[nRotMat], theta1, phi1, theta2, phi2, theta3, phi3);
- gMC->
- Gspos("TLGA",ns+1+nOuterSector,"TGAS" ,0.,0.,0.,idrotm[nRotMat],"ONLY");
- nRotMat++;
+ dm[0]= 75.3;
+ dm[1]= 264.8;
+ dm[2]= 3.0;
- }
+ gMC->Gsvolu("TPMW","TUBE",idtmed[4],dm,3);
- }
+ // TPc Extra Wheel (to avoid overlapping) - Al
- }
+ dm[0]= 264.8;
+ dm[1]= 277.0;
+ dm[2]= 1.95;
- }
-
- Float_t z0 = z_side - 0.95;
+ gMC->Gsvolu("TPEW","TUBE",idtmed[4],dm,3);
- gMC->Gspos("TPEC",1,"TPSG",0.,0.,z0,0,"ONLY");
+ //--------------------------------------------------------------------------
+ // Tpc Empty Space for the Readout chambers
+ //--------------------------------------------------------------------------
- // ==========================================================
- // wheels
- // ==========================================================
+ Float_t rLow= 86.2;
+ Float_t rUp= 243.5;
+ Float_t dR = 0.5*(rUp-rLow);
- //
- // auxilary structures
- //
+ space= 1.4/cosAlpha; // wheel ribs are 2.8 cm wide
+ dm[0]= rLow*tanAlpha-space;
+ dm[1]= rUp*tanAlpha-space;
+ dm[2]= 3.0;
+ dm[3]= dR;
- gMC->Gsvolu("TPWI","TUBE",idtmed[24],dm,0); // "air"
+ gMC->Gsvolu("TESR","TRD1",idtmed[0],dm,4);
- // ----------------------------------------------------------
- // Large wheel -> positioned in the TPC
- // ----------------------------------------------------------
-
+ // TIC1->TESR
- z0 = 263.5; // TPC length - 1/2 spoke wheel width
- dm[0] = 258.;
- dm[1] = 278.;
- dm[2] = 11.5;
-
- gMC->Gsvolu("TPWL", "TUBE", idtmed[0], dm, 3);
+ gMC->Gspos("TIC1",1,"TESR",0.,0.75,-dR+23.97,0,"ONLY");
- dm[0] = dm[0]+2.;
- dm[1] = 278.;
- dm[2] = dm[2]-2.;
- gMC->Gsposp("TPWI",1,"TPWL",0.,0.,0.,0,"ONLY",dm,3);
+ // TOC1->TESR
- gMC->Gspos("TPWL", 1, "TPC ", 0, 0, z0, 0, "ONLY");
- gMC->Gspos("TPWL", 2, "TPC ", 0, 0, -z0, 0, "ONLY");
+ gMC->Gspos("TOC1",1,"TESR",0.,0.75,dR-55.02,0,"ONLY");
- //
- // Outer vessel + CO2 HV degrader
- //
+ // Tpc Empty Space Bars - Al (daughters of TESR)
- dm[0] = 260.;
- dm[1] = 278.;
- dm[2] = 252.;
+ Float_t zBar;
- gMC->Gsvolu("TPCO","TUBE",idtmed[12],dm,3);
+ gMC->Gsvolu("TESB","TRD1",idtmed[4],dm,0);
- dm[0] = 275.;
- dm[1] = 278.;
-
- gMC->Gsvolu("TPOV","TUBE",idtmed[10],dm,3);
+ // lower bar
+
+ dm[0]= rLow*tanAlpha-space;
+ dm[1]= 88.7*tanAlpha-space;
+ dm[2]= 0.95;
+ dm[3]= 1.275;
+
+ zBar = -dR+dm[3];
+
+ gMC->Gsposp("TESB",1,"TESR",0.,2.05,zBar,0,"ONLY",dm,4);
+
+ // middle bar
+
+ dm[0]= 131.65*tanAlpha-space;
+ dm[1]= 136.5*tanAlpha-space;
+ dm[3]= 2.425;
- gMC->Gspos("TPOV",1,"TPCO",0.,0.,0.,0,"ONLY");
+ zBar = -dR +131.65+dm[3]-rLow;
+ gMC->Gsposp("TESB",2,"TESR",0.,2.05,zBar,0,"ONLY",dm,4);
- // G10 plugs
+ // upper bar
- dm[0] = 258.;
- dm[1] = 260.;
- dm[2] = 1.;
+ dm[0]= 240.4*tanAlpha-space;
+ dm[1]= rUp*tanAlpha-space;
+ dm[3]= 1.55;
- gMC->Gsvolu("TPG1","TUBE",idtmed[8],dm,3);
- gMC->Gspos("TPG1",1,"TPCO",0.,0.,251.,0,"ONLY");
- gMC->Gspos("TPG1",2,"TPCO",0.,0.,-251.,0,"ONLY");
+ zBar = dR-dm[3];
- gMC->Gspos("TPCO",1,"TPC ",0.,0.,0.,0,"ONLY");
+ gMC->Gsposp("TESB",3,"TESR",0.,2.05,zBar,0,"ONLY",dm,4);
+ //------------------------------------------------------
+ // TPc Lower "S" Sectors
+ //------------------------------------------------------
+
+
+ Float_t inSecLowEdge = fTPCParam->GetInnerRadiusLow();
+ Float_t inSecUpEdge = fTPCParam->GetInnerRadiusUp();
+
+ dm[0] = inSecLowEdge*TMath::Tan(0.5*innerOpenAngle)-0.01;
+ dm[1] = inSecUpEdge*TMath::Tan(0.5*innerOpenAngle)-0.01;
+ dm[2] = 0.5*(250. - 0.3);
+ dm[3] = 0.5*(inSecUpEdge-inSecLowEdge);
+
+ gMC->Gsvolu("TPLS", "TRD1", idtmed[2], dm, 4); // sensitive
//----------------------------------------------------------
- // Small wheel -> positioned in "side gas
+ // TPc Upper Sectors
//----------------------------------------------------------
- dm[0] = 78.;
- dm[1] = 82.;
- dm[2] = 11.5;
+ Float_t ouSecLowEdge = fTPCParam->GetOuterRadiusLow();
+ Float_t ouSecUpEdge = fTPCParam->GetOuterRadiusUp();
- gMC->Gsvolu("TPWS", "TUBE", idtmed[0], dm, 3);
+ dm[0] = ouSecLowEdge*TMath::Tan(0.5*outerOpenAngle)-0.01;
+ dm[1] = ouSecUpEdge*TMath::Tan(0.5*outerOpenAngle)-0.01;
+ dm[2] = 0.5*(250. - 0.3);
+ dm[3] = 0.5*(ouSecUpEdge-ouSecLowEdge);
- dm[0] = 78.;
- dm[1] = dm[1]-2;
- dm[2] = dm[2]-2.;
+ gMC->Gsvolu("TPUS", "TRD1", idtmed[2], dm, 4); // sensitive
- gMC->Gsvolu("TPW1", "TUBE", idtmed[2], dm, 3);
-
- gMC->Gspos("TPW1", 1, "TPWS", 0., 0., 0., 0, "ONLY");
- z0 = 1.; // spoke wheel is shifted w.r.t. center of the "side gas"
+ // if sensitive strips selected
+
+ if(fSens >= 0){
- gMC->Gspos("TPWS", 1, "TPSG", 0, 0, z0, 0, "ONLY");
+ gMC->Gsvolu("TPSS","TRD1",idtmed[2],dm,0); // sensitive
+ Int_t nofStrips,nstr;
+ Float_t r1,r2,zs;
+ Float_t stripThick = 0.01; // 100 microns
+ Float_t deadSpace;
- // to avoid overlaps
+ // inner sector
- dm[0] = 76.;
- dm[1] = 78.;
- dm[2] = 11.5;
+ nofStrips = fTPCParam->GetNRowLow();
+ deadSpace = fTPCParam->GetInnerWireMount();
- gMC->Gsvolu("TPS1","TUBE",idtmed[0],dm,3);
+ dm[2] = 0.5*(250. - 0.3);
+ dm[3] = 0.5 * stripThick;
- dm[2] = 9.5;
+ for(nstr=0;nstr<nofStrips;nstr++){
- gMC->Gsvolu("TPS2","TUBE",idtmed[24],dm,3);
+ r1 = fTPCParam->GetPadRowRadiiLow(nstr);
+ r2 = r1 + stripThick;
+ dm[0] = r1 * TMath::Tan(0.5*innerOpenAngle) - deadSpace;
+ dm[1] = r2 * TMath::Tan(0.5*innerOpenAngle) - deadSpace;
+ zs = -inSecLowEdge -0.5*(inSecUpEdge-inSecLowEdge);
+ zs += r1;
+ zs += dm[3];
+
+ gMC->Gsposp("TPSS", nstr+1, "TPLS", 0., 0., zs, 0, "ONLY", dm, 4);
+
+ gMC->Gsord("TPLS",3);
+
+ }
- gMC->Gspos("TPS2",1,"TPS1",0.,0.,0.,0,"ONLY");
+ Int_t nsSave = nofStrips;
- z0= 263.5;
+ // outer sector
+
+ nofStrips = fTPCParam->GetNRowUp();
+ deadSpace = fTPCParam->GetOuterWireMount();
+
+ dm[2] = 0.5*(250. - 0.3);
+ dm[3] = 0.5 * stripThick;
- gMC->Gspos("TPS1",1,"TPC ",0.,0.,z0,0,"ONLY");
- gMC->Gspos("TPS1",2,"TPC ",0.,0.,-z0,0,"ONLY");
+ for(nstr=0;nstr<nofStrips;nstr++){
+
+ r1 = fTPCParam->GetPadRowRadiiUp(nstr);
+ r2 = r1 + stripThick;
+ dm[0] = r1 * TMath::Tan(0.5*outerOpenAngle) - deadSpace;
+ dm[1] = r2 * TMath::Tan(0.5*outerOpenAngle) - deadSpace;
+ zs = -ouSecLowEdge -0.5*(ouSecUpEdge-ouSecLowEdge);
+ zs += r1;
+ zs += dm[3];
- // G10 plug
+ gMC->Gsposp("TPSS", nstr+1+nsSave, "TPUS", 0., 0., zs, 0, "ONLY", dm, 4);
- dm[0] = 76.;
- dm[1] = 78.;
- dm[2] = 1.;
+ }
+ } // if strips
- gMC->Gsvolu("TPG2","TUBE",idtmed[8],dm,3);
+ //-------------------------------------------------------
+ // positioning of the empty spaces into the main wheel
+ // and readout chambers and sectors into the drift gas
+ //-------------------------------------------------------
- z0 = 251.;
+ Float_t rCenter,xc,yc;
+ Float_t rInner,rOuter; // center of the inner and outer chamber
- gMC->Gspos("TPG2",1,"TPC ",0.,0.,z0,0,"ONLY");
- gMC->Gspos("TPG2",2,"TPC ",0.,0.,-z0,0,"ONLY");
+ rCenter = rLow+dR;
+ rInner = 108.07;
+ rOuter = 190.68;
- //---------------------------------------------------------
- // central wheel 6 (radial direction) x 4 (along z) cm2
- //---------------------------------------------------------
+ for(Int_t ns=0; ns<nInnerSector;ns++){
+
+ phi1 = ns * innerOpenAngle + innerAngleShift;
+ phi1 *= kRaddeg; // in degrees
+
+ phi1 = (Float_t)TMath::Nint(phi1) + 270.;
- dm[0] = 140.;
- dm[1] = 146.;
- dm[2] = 2.;
+ if (phi1 > 360.) phi1 -= 360.;
- gMC->Gsvolu("TPWC","TUBE",idtmed[0],dm,3);
+ theta1 = 90.;
+ phi2 = 90.;
+ theta2 = 180.;
+ phi3 = ns * innerOpenAngle + innerAngleShift;
+ phi3 *= kRaddeg; // in degrees
- dm[0] = dm[0] + 2.;
- dm[1] = dm[1] - 2.;
- dm[2] = dm[2] - 1.;
+ phi3 = (Float_t)TMath::Nint(phi3);
+
+ if(phi3 > 360.) phi3 -= 360.;
- gMC->Gsposp("TPWI",2,"TPWC",0.,0.,0.,0,"ONLY",dm,3);
+ theta3 = 90.;
- z0 = z_side - 1.9 - 2.;
+ // "holes"->End plate
- gMC->Gspos("TPWC",1,"TPSG",0.,0.,z0,0,"ONLY");
+ xc = rCenter*TMath::Cos(phi3*kDegrad);
+ yc = rCenter*TMath::Sin(phi3*kDegrad);
- //
+ AliMatrix(idrotm[nRotMat], theta1, phi1, theta2, phi2, theta3, phi3);
- gMC->Gsvolu("TPSE","BOX ",idtmed[24],dm,0); // "empty" part of the spoke
+ gMC->Gspos("TESR",ns+1,"TPMW",xc,yc,0.,idrotm[nRotMat],"ONLY");
-
- //---------------------------------------------------------
- // inner spokes (nSectorInner)
- //---------------------------------------------------------
+ // TSCE->TSWC (services wheel volumes)
- dm[0] = 0.5*(139.9-82.1);
- dm[1] = 3.;
- dm[2] = 2.;
+ xc = 166.142*TMath::Cos(phi3*kDegrad);
+ yc = 166.142*TMath::Sin(phi3*kDegrad);
- Float_t x1 = dm[0]+82.;
+ gMC->Gspos("TSCE",ns+1,"TSWC",xc,yc,0.,idrotm[nRotMat],"ONLY");
+ gMC->Gspos("TWES",ns+1,"TSSW",xc,yc,0.,idrotm[nRotMat],"ONLY");
- gMC->Gsvolu("TPSI","BOX",idtmed[0],dm,3);
+ // readout chambers->TDGN (drift gas)
- dm[1] = dm[1]-1.;
- dm[2] = dm[2]-1.;
+ xc = rInner*TMath::Cos(phi3*kDegrad);
+ yc = rInner*TMath::Sin(phi3*kDegrad);
- gMC->Gsposp("TPSE",1,"TPSI",0.,0.,0.,0,"ONLY",dm,3);
+ gMC->Gspos("TIRC",ns+1,"TDGN",xc,yc,252.,idrotm[nRotMat],"ONLY");
- for(ns=0;ns<nInnerSector;ns++){
+ // here lower sectors
- phi1 = 0.5*InnerOpenAngle + ns*InnerOpenAngle + InnerAngleShift;
- theta1=90.;
- phi1 *=kRaddeg;
+ if(fSecAL <0){
- phi1 = (Float_t)TMath::Nint(phi1);
- if(phi1>360.) phi1 -= 360.;
+ // all lower sectors are positioned
- phi2 = phi1+90.;
- if(phi2>360.) phi2 -= 360.;
- theta2=90.;
- phi3=0.;
- theta3=0.;
+ gMC->Gspos("TPLS",ns+1,"TDGN",xc,yc,125.15,idrotm[nRotMat],"ONLY");
+ gMC->
+ Gspos("TPLS",ns+nInnerSector+1,"TDGN",xc,yc,-125.15,idrotm[nRotMat],"ONLY");
+ }
+ else{
- alpha = phi1 * kDegrad;
- x = x1 * TMath::Cos(alpha);
- y = x1 * TMath::Sin(alpha);
+ // only selected sectors are positioned (up to 6 sectors)
- AliMatrix(idrotm[nRotMat],theta1,phi1,theta2,phi2,theta3,phi3);
+ for(Int_t sel=0;sel<6;sel++){
- gMC->Gspos("TPSI",ns+1,"TPSG",x,y,z0,idrotm[nRotMat],"ONLY");
+ if(fSecLows[sel] == ns){
+ gMC->Gspos("TPLS",ns+1,"TDGN",xc,yc,125.15,idrotm[nRotMat],"ONLY");
+ }
+ else if(fSecLows[sel] == ns+nInnerSector){
+ gMC->
+ Gspos("TPLS",ns+nInnerSector+1,"TDGN",xc,yc,-125.15,idrotm[nRotMat],"ONLY");
+ }
+ }
+ } // lower sectors finished
+
+ xc = rOuter*TMath::Cos(phi3*kDegrad);
+ yc = rOuter*TMath::Sin(phi3*kDegrad);
- nRotMat++;
+ gMC->Gspos("TORC",ns+1,"TDGN",xc,yc,252.1,idrotm[nRotMat],"ONLY");
- }
+ // here upper sectors
- //-------------------------------------------------------------
- // outer spokes (nSectorOuter)
- //-------------------------------------------------------------
+ if(fSecAU <0){
- dm[0] = 0.5*(257.9-146.1);
- dm[1] = 3.;
- dm[2] = 2.;
+ // all upper sectors
- x1 = dm[0] + 146.;
+ gMC->Gspos("TPUS",ns+1,"TDGN",xc,yc,125.15,idrotm[nRotMat],"ONLY");
+ gMC->
+ Gspos("TPUS",ns+nOuterSector+1,"TDGN",xc,yc,-125.15,idrotm[nRotMat],"ONLY");
+ }
+ else{
- gMC->Gsvolu("TPSO","BOX ",idtmed[0],dm,3);
+ // only selected sectors (up to 12)
- dm[1] = dm[1] - 1.;
- dm[2] = dm[2] - 1.;
+ for(Int_t sel=0;sel<12;sel++){
+ if(fSecUps[sel] == ns+2*nInnerSector){
+ gMC->Gspos("TPUS",ns+1,"TDGN",xc,yc,125.15,idrotm[nRotMat],"ONLY");
+ }
+ else if(fSecUps[sel] == ns+2*nInnerSector+nOuterSector){
+ gMC->
+ Gspos("TPUS",ns+nOuterSector+1,"TDGN",xc,yc,-125.15,idrotm[nRotMat],"ONLY");
+ }
+ }
+ } // upper sectors finished
- gMC->Gsposp("TPSE",2,"TPSO",0.,0.,0.,0,"ONLY",dm,3);
+ nRotMat++;
- for(ns=0;ns<nOuterSector;ns++){
+ theta2 = 0.; // reflection, needed for readout chambers!
- phi1 = 0.5*OuterOpenAngle + ns*OuterOpenAngle + OuterAngleShift;
- theta1=90.;
- phi1 *=kRaddeg;
+ AliMatrix(idrotm[nRotMat], theta1, phi1, theta2, phi2, theta3, phi3);
- phi1 = (Float_t)TMath::Nint(phi1);
- if(phi1>360.) phi1 -= 360.;
+ xc = rInner*TMath::Cos(phi3*kDegrad);
+ yc = rInner*TMath::Sin(phi3*kDegrad);
- phi2 = phi1+90.;
- if(phi2>360.) phi2 -= 360.;
- theta2=90.;
- phi3=0.;
- theta3=0.;
+ gMC->Gspos("TIRC",ns+nInnerSector+1,"TDGN",xc,yc,-252.,idrotm[nRotMat],"ONLY");
- alpha = phi1 * kDegrad;
- x = x1 * TMath::Cos(alpha);
- y = x1 * TMath::Sin(alpha);
+ xc = rOuter*TMath::Cos(phi3*kDegrad);
+ yc = rOuter*TMath::Sin(phi3*kDegrad);
- AliMatrix(idrotm[nRotMat],theta1,phi1,theta2,phi2,theta3,phi3);
+ gMC->Gspos("TORC",ns+nOuterSector+1,"TDGN",xc,yc,-252.1,idrotm[nRotMat],"ONLY");
- gMC->Gspos("TPSO",ns+1,"TPSG",x,y,z0,idrotm[nRotMat],"ONLY");
+ nRotMat++;
- nRotMat++;
- }
-
+ }
-
- // --------------------------------------------------------
- // put the readout chambers into the TPC
- // --------------------------------------------------------
+ // reflection matrix
theta1 = 90.;
phi1 = 0.;
phi2 = 270.;
theta3 = 180.;
phi3 = 0.;
-
+
AliMatrix(idrotm[nRotMat], theta1, phi1, theta2, phi2, theta3, phi3);
-
- z0 = z_side + 250.;
-
- gMC->Gspos("TPSG", 1, "TPC ", 0, 0, z0, 0, "ONLY");
- gMC->Gspos("TPSG", 2, "TPC ", 0, 0, -z0, idrotm[nRotMat], "ONLY");
-
- gMC->Gspos("TPC ", 1, "ALIC", 0, 0, 0, 0, "ONLY");
- //----------------------------------------------------
- // Inner vessel and HV degrader
- //----------------------------------------------------
- dm[0] = 0.;
- dm[1] = 360.;
- dm[2] = 4.;
-
- dm[3] = -250.;
- dm[4] = 74.4;
- dm[5] = 76.;
+ // TPMW->TPC
+
+ gMC->Gspos("TPMW",1,"TPC ",0.,0.,256.6,0,"ONLY");
+ gMC->Gspos("TPMW",2,"TPC ",0.,0.,-256.6,idrotm[nRotMat],"ONLY");
+ gMC->Gspos("TPEW",1,"TPC ",0.,0.,257.65,0,"ONLY");
+ gMC->Gspos("TPEW",2,"TPC ",0.,0.,-257.65,0,"ONLY");
- dm[6] = -64.5;
- dm[7] = 50.;
- dm[8] = 76.;
- dm[9] = -64.5;
- dm[10] = 50.;
- dm[11] = 76.;
- dm[12] = 250.;
- dm[13] = 74.4;
- dm[14] = 76.;
+ //-------------------------------------------------------
+ // Tpc High Voltage Membrane - NOMEX honeycomb
+ //-------------------------------------------------------
- gMC->Gsvolu("TPVD", "PCON", idtmed[12], dm, 15); // CO2
+ dm[0]=0.,
+ dm[1]=360.;
+ dm[2]=18.;
+ dm[3]=2.;
- // cone parts
+ //
- dm[0] = 0.;
- dm[1] = 360.;
- dm[2] = 2.;
+ dm[4]= -0.3;
+ dm[5]= 81.156;
+ dm[6]= 253.386;
- dm[3] = 64.5;
- dm[4] = 50.;
- dm[5] = 51.6;
-
- dm[6] = 250.;
- dm[7] = 74.4;
- dm[8] = 76.;
+ //
+ dm[7]= 0.3;
+ dm[8]= dm[5];
+ dm[9]= dm[6];
- gMC->Gsvolu("TIVC","PCON",idtmed[11],dm,9); // C-fibre
+ gMC->Gsvolu("THVM","PGON",idtmed[6],dm,10);
- gMC->Gspos("TIVC",1,"TPVD",0.,0.,0.,0,"ONLY");
- gMC->Gspos("TIVC",2,"TPVD",0.,0.,0.,idrotm[nRotMat],"ONLY");
+ gMC->Gspos("THVM",1,"TDGN",0.,0.,0.,0,"ONLY");
- // barrel part
+ //----------------------------------------------------------
+ // TPc Support Rods - MAKROLON
+ //----------------------------------------------------------
- dm[0] = 50.;
- dm[1] = 50.5;
- dm[2] = 32.25;
+ dm[0]= 0.9;
+ dm[1]= 1.2;
+ dm[2]= 126.65;
- gMC->Gsvolu("TIVB","TUBE",idtmed[9],dm,3);
+ gMC->Gsvolu("TPSR","TUBE",idtmed[7],dm,3);
- gMC->Gspos("TIVB",1,"TPVD",0.,0.,0.,0,"ONLY");
+ for(Int_t nrod=1;nrod<18;nrod++){
+ Float_t angle=innerOpenAngle*(Float_t)nrod;
- gMC->Gspos("TPVD",1,"ALIC",0.,0.,0.,0,"ONLY");
+ xc=82.4*TMath::Cos(angle);
+ yc=82.4*TMath::Sin(angle);
+ gMC->Gspos("TPSR",nrod,"TDGN",xc,yc,126.95,0,"ONLY");
+ gMC->Gspos("TPSR",nrod+17,"TDGN",xc,yc,-126.95,0,"ONLY");
- // ---------------------------------------------------
- // volumes ordering
- // ---------------------------------------------------
+ xc=254.2*TMath::Cos(angle);
+ yc=254.2*TMath::Sin(angle);
+
+ gMC->Gspos("TPSR",nrod+34,"TDGN",xc,yc,126.95,0,"ONLY");
+ gMC->Gspos("TPSR",nrod+51,"TDGN",xc,yc,-126.95,0,"ONLY");
+
+ }
+
+ //----------------------------------------------------------
+ // Tpc High Voltage rod - MAKROLON + Copper cable
+ //----------------------------------------------------------
+
+ // rod with cable (Left)
+
+ dm[0]=0.;
+ dm[1]=2.25;
+ dm[2]=126.65;
- gMC->Gsord("TGAS", 6);
- gMC->Gsord("TPSG", 6);
+ gMC->Gsvolu("THVL","TUBE",idtmed[7],dm,3);
+ // HV cable
+
+ dm[0]=0.;
+ dm[1]=0.3;
+ dm[2]=126.65;
+
+ gMC->Gsvolu("THVC","TUBE",idtmed[10],dm,3);
+
+ // empty space
+
+ dm[0]=0.3;
+ dm[1]=1.;
+ dm[2]=126.65;
+
+ gMC->Gsvolu("THVE","TUBE",idtmed[1],dm,3);
+
+ gMC->Gspos("THVC",1,"THVL",0.,0.,0.,0,"ONLY");
+ gMC->Gspos("THVE",1,"THVL",0.,0.,0.,0,"ONLY");
+
+ // rod without cable
+
+ dm[0]=1.8;
+ dm[1]=2.25;
+ dm[2]=126.65;
+
+ gMC->Gsvolu("THVR","TUBE",idtmed[7],dm,3);
+
+
+
+ gMC->Gspos("THVL",1,"TDGN",82.4,0.,-126.95,0,"ONLY");
+ gMC->Gspos("THVL",2,"TDGN",254.2,0.,-126.95,0,"ONLY");
+
+ gMC->Gspos("THVR",1,"TDGN",82.4,0.,126.95,0,"ONLY");
+ gMC->Gspos("THVR",2,"TDGN",254.2,0.,126.95,0,"ONLY");
+
+ gMC->Gspos("TDGN",1,"TPC ",0.,0.,0.,0,"ONLY");
+
+ // services wheel cover -> wheel
+
+
+ gMC->Gspos("TSWC",1,"TSSW",0.,0.,4.5,0,"ONLY");
+ gMC->Gspos("TSWC",2,"TSSW",0.,0.,-4.5,0,"ONLY");
+
+
+ // put the wheel into the TPC
+
+ gMC->Gspos("TSSW",1,"TPC ",0.,0.,278.7,0,"ONLY");
+ gMC->Gspos("TSSW",2,"TPC ",0.,0.,-278.7,0,"ONLY");
+
+ gMC->Gsord("TPMW",6);
+ gMC->Gsord("TPLS",3);
+ gMC->Gsord("TPUS",3);
+ gMC->Gsord("TDGN",6);
+ gMC->Gsord("TSSW",6);
+ gMC->Gsord("TSWC",6);
+
+ // put the TPC into ALIC (main mother volume)
+
+ gMC->Gspos("TPC ", 1, "ALIC", 0, 0, 0, 0, "ONLY");
+
} // end of function
//_____________________________________________________________________________
gMC->Gsatt("ALIC","SEEN",0);
//
// Set the volumes visible
- gMC->Gsatt("TPC","SEEN",0);
- gMC->Gsatt("TGAS","SEEN",0);
- gMC->Gsatt("TPSG","SEEN",0);
- gMC->Gsatt("TPHV","SEEN",1);
- gMC->Gsatt("TPMH","SEEN",1);
- gMC->Gsatt("TPEC","SEEN",0);
- gMC->Gsatt("TRCS","SEEN",1);
- gMC->Gsatt("TRCL","SEEN",1);
- gMC->Gsatt("TPWL","SEEN",1);
- gMC->Gsatt("TPWI","SEEN",1);
- gMC->Gsatt("TPWS","SEEN",1);
- gMC->Gsatt("TPW1","SEEN",1);
- gMC->Gsatt("TPS1","SEEN",1);
- gMC->Gsatt("TPS2","SEEN",1);
- gMC->Gsatt("TPG1","SEEN",1);
- gMC->Gsatt("TPG2","SEEN",1);
- gMC->Gsatt("TPWC","SEEN",1);
- gMC->Gsatt("TPSI","SEEN",1);
- gMC->Gsatt("TPSO","SEEN",1);
- gMC->Gsatt("TPCO","SEEN",1);
- gMC->Gsatt("TPOV","SEEN",1);
- gMC->Gsatt("TPVD","SEEN",1);
+ //
+
+ gMC->Gsatt("TPC ","SEEN",0);
+ gMC->Gsatt("TOIN","SEEN",1);
+ gMC->Gsatt("TOIN","COLO",7);
+ gMC->Gsatt("TPCR","SEEN",0);
+ gMC->Gsatt("TOCV","SEEN",1);
+ gMC->Gsatt("TOCV","COLO",4);
+ gMC->Gsatt("TSA1","SEEN",0);
+ gMC->Gsatt("TSA2","SEEN",0);
+ gMC->Gsatt("TSA3","SEEN",0);
+ gMC->Gsatt("TSA4","SEEN",0);
+ gMC->Gsatt("TOFC","SEEN",1);
+ gMC->Gsatt("TOFC","COLO",4);
+ gMC->Gsatt("TSA5","SEEN",0);
+ gMC->Gsatt("TSA6","SEEN",0);
+ gMC->Gsatt("TSA7","SEEN",0);
+ gMC->Gsatt("TSA8","SEEN",0);
+ gMC->Gsatt("TIIN","COLO",7);
+ gMC->Gsatt("TIIN","SEEN",1);
+ gMC->Gsatt("TICL","SEEN",0);
+ gMC->Gsatt("TSA9","SEEN",0);
+ gMC->Gsatt("TS10","SEEN",0);
+ gMC->Gsatt("TS11","SEEN",0);
+ gMC->Gsatt("TS12","SEEN",0);
+ gMC->Gsatt("TICR","SEEN",0);
+ gMC->Gsatt("TS13","SEEN",0);
+ gMC->Gsatt("TS14","SEEN",0);
+ gMC->Gsatt("TS15","SEEN",0);
+ gMC->Gsatt("TS16","SEEN",0);
+ gMC->Gsatt("TIFC","SEEN",1);
+ gMC->Gsatt("TIFC","COLO",4);
+ gMC->Gsatt("TS17","SEEN",0);
+ gMC->Gsatt("TS18","SEEN",0);
+ gMC->Gsatt("TS19","SEEN",0);
+ gMC->Gsatt("TS20","SEEN",0);
+ gMC->Gsatt("TS21","SEEN",0);
+ gMC->Gsatt("TS22","SEEN",0);
+ gMC->Gsatt("TS23","SEEN",0);
+ gMC->Gsatt("TS24","SEEN",0);
+ gMC->Gsatt("TDGN","SEEN",0);
+ gMC->Gsatt("TIRC","SEEN",0);
+ gMC->Gsatt("TIC1","SEEN",1);
+ gMC->Gsatt("TIPP","SEEN",0);
+ gMC->Gsatt("TIC3","SEEN",0);
+ gMC->Gsatt("TRCE","SEEN",0);
+ gMC->Gsatt("TPSC","SEEN",0);
+ gMC->Gsatt("TPCC","SEEN",0);
+ gMC->Gsatt("TORC","SEEN",0);
+ gMC->Gsatt("TOPP","SEEN",0);
+ gMC->Gsatt("TOC3","SEEN",0);
+ gMC->Gsatt("TOC1","SEEN",1);
+ gMC->Gsatt("TSSW","SEEN",1);
+ gMC->Gsatt("TSWC","SEEN",1);
+ gMC->Gsatt("TSCE","SEEN",1);
+ gMC->Gsatt("TSSW","COLO",3);
+ gMC->Gsatt("TSWC","COLO",3);
+ gMC->Gsatt("TSCE","COLO",6);
+ gMC->Gsatt("TWES","SEEN",0);
+ gMC->Gsatt("TSWB","SEEN",0);
+ gMC->Gsatt("TPEL","SEEN",0);
+ gMC->Gsatt("TPMW","SEEN",1);
+ gMC->Gsatt("TPEW","SEEN",1);
+ gMC->Gsatt("TESR","SEEN",1);
+ gMC->Gsatt("TPMW","COLO",12);
+ gMC->Gsatt("TPEW","COLO",12);
+ gMC->Gsatt("TWES","COLO",5);
+ gMC->Gsatt("TIC1","COLO",5);
+ gMC->Gsatt("TOC1","COLO",5);
+ gMC->Gsatt("TESB","SEEN",0);
+ gMC->Gsatt("TPLS","SEEN",0);
+ gMC->Gsatt("TPUS","SEEN",0);
+ gMC->Gsatt("TPSS","SEEN",0);
+ gMC->Gsatt("THVM","SEEN",1);
+ gMC->Gsatt("THVM","COLO",11);
+ gMC->Gsatt("TPSR","SEEN",0);
+ gMC->Gsatt("THVL","SEEN",0);
+ gMC->Gsatt("THVC","SEEN",0);
+ gMC->Gsatt("THVE","SEEN",0);
+ gMC->Gsatt("THVR","SEEN",0);
+
//
gMC->Gdopt("hide", "on");
gMC->Gdopt("shad", "on");
gMC->Gsatt("*", "fill", 7);
gMC->SetClipBox(".");
- gMC->SetClipBox("*", 0, 1000, -1000, 1000, -1000, 1000);
+ gMC->SetClipBox("TPMW",-300,300,-300,300,254.,270.);
+ gMC->SetClipBox("TESR",-300,300,-300,300,254.,270.);
+ gMC->SetClipBox("TSSW",-300,300,-300,300,283.,284.);
+ gMC->SetClipBox("TSWC",-300,300,-300,300,283.,284.);
+ gMC->SetClipBox("*", 0, 300, -300, 300, -290, 290);
gMC->DefaultRange();
gMC->Gdraw("alic", 40, 30, 0, 12, 9.5, .025, .025);
gMC->Gdhead(1111, "Time Projection Chamber");
//
// Define materials for version 2 of the Time Projection Chamber
//
-
- //
- // Increase maximum number of steps
- gMC->SetMaxNStep(30000);
- //
+
AliTPC::CreateMaterials();
}
//
// Initialises version 2 of the TPC after that it has been built
//
- Int_t *idtmed = fIdtmed->GetArray()-399;
+
+ Int_t *idtmed = fIdtmed->GetArray();
+
AliTPC::Init();
- fIdSens1=gMC->VolId("TLGA"); // L-sector
- fIdSens2=gMC->VolId("TSGA"); // S-sector
- fIdSens3=gMC->VolId("TSST"); // strip - S-sector (not always used)
- fIdSens4=gMC->VolId("TLST"); // strip - S-sector (not always used)
+ fIdSens=gMC->VolId("TPSS"); // sensitive strips (not always used)
+ fIdLSec=gMC->VolId("TPLS"); // lower sector
+ fIdUSec=gMC->VolId("TPUS"); // upper sector
gMC->SetMaxNStep(30000); // max. number of steps increased
- gMC->Gstpar(idtmed[403],"LOSS",5);
+ gMC->Gstpar(idtmed[2],"LOSS",5); // specific energy loss
printf("*** TPC version 2 initialized ***\n");
printf("Maximum number of steps = %d\n",gMC->GetMaxNStep());
//
// parameters used for the energy loss calculations
//
- const Float_t prim = 14.35; // number of primary collisions per 1 cm
- const Float_t poti = 20.77e-9; // first ionization potential for Ne/CO2
- const Float_t w_ion = 35.97e-9; // energy for the ion-electron pair creation
-
- // const Float_t prim = 17.65;
- // const Float_t poti = 19.02e-9;
- // const Float_t w_ion = 33.06e-9;
+ const Float_t kprim = 14.35; // number of primary collisions per 1 cm
+ const Float_t kpoti = 20.77e-9; // first ionization potential for Ne/CO2
+ const Float_t kwIon = 35.97e-9; // energy for the ion-electron pair creation
- const Float_t big = 1.e10;
+ const Float_t kbig = 1.e10;
Int_t id,copy;
Float_t hits[4];
Int_t vol[2];
TClonesArray &lhits = *fHits;
- TLorentzVector pos;
-
- AliTPCParam *fTPCParam = &(fDigParam->GetParam());
+ TLorentzVector p;
- vol[1]=0;
+ vol[1]=0; // preset row number to 0
//
- gMC->SetMaxStep(big);
+ gMC->SetMaxStep(kbig);
if(!gMC->IsTrackAlive()) return; // particle has disappeared
if(TMath::Abs(charge)<=0.) return; // take only charged particles
-
- id=gMC->CurrentVolID(copy);
-
- // Check the sensitive volume
-
- if(id == fIdSens1)
- {
- vol[0] = copy + fTPCParam->GetNInnerSector()-1; // L-sector number
- }
- else if(id == fIdSens2)
- {
- vol[0] = copy-1; // S-sector number
- }
- else if(id == fIdSens3 && gMC->IsTrackEntering())
- {
- vol[1] = copy-1; // row number
- id = gMC->CurrentVolOffID(1,copy);
- vol[0] = copy-1; // sector number (S-sector)
-
- gMC->TrackPosition(pos);
- hits[0]=pos[0];
- hits[1]=pos[1];
- hits[2]=pos[2];
- hits[3]=0.; // this hit has no energy loss
- new(lhits[fNhits++]) AliTPChit(fIshunt,gAlice->CurrentTrack(),vol,hits);
+ // check the sensitive volume
+
+ id = gMC->CurrentVolID(copy); // current volume Id
+
+ if(id == fIdLSec){
+ vol[0] = copy-1; // lower sector number
+ }
+ else if(id == fIdUSec){
+ vol[0] = copy+fTPCParam->GetNInnerSector()-1; // upper sector number
+ }
+ else if(id == fIdSens && gMC->IsTrackEntering()){
+
+ // track is entering the sensitive strip
+
+ vol[1]= copy-1; // row number (absolute)
+
+ // sector type
+
+ id = gMC->CurrentVolOffID(1,copy);
+
+ if(id == fIdLSec){
+
+ // lower sector
+
+ vol[0] = copy-1; // sector number
+
}
- else if(id == fIdSens4 && gMC->IsTrackEntering())
- {
- vol[1] = copy-1; // row number
- id = gMC->CurrentVolOffID(1,copy);
- vol[0] = copy+fTPCParam->GetNInnerSector()-1; // sector number (L-sector)
-
- gMC->TrackPosition(pos);
- hits[0]=pos[0];
- hits[1]=pos[1];
- hits[2]=pos[2];
+ else {
+
+ // upper sector
+
+ vol[0] = copy-1+fTPCParam->GetNInnerSector(); // sector number
+ vol[1] -= fTPCParam->GetNRowLow(); // row number
+
+ }
+
+ if(vol[1] == 0){
+
+ // because Jouri wants to have this
+
+ gMC->TrackMomentum(p);
+ hits[0]=p[0];
+ hits[1]=p[1];
+ hits[2]=p[2];
hits[3]=0.; // this hit has no energy loss
new(lhits[fNhits++]) AliTPChit(fIshunt,gAlice->CurrentTrack(),vol,hits);
+
}
+
+ gMC->TrackPosition(p);
+ hits[0]=p[0];
+ hits[1]=p[1];
+ hits[2]=p[2];
+ hits[3]=0.; // this hit has no energy loss
+ new(lhits[fNhits++]) AliTPChit(fIshunt,gAlice->CurrentTrack(),vol,hits);
+
+
+ }
else return;
-
- //
+
+ //-----------------------------------------------------------------
// charged particle is in the sensitive volume
- //
+ //-----------------------------------------------------------------
if(gMC->TrackStep() > 0) {
- Int_t nel = (Int_t)(((gMC->Edep())-poti)/w_ion) + 1;
+ Int_t nel = (Int_t)(((gMC->Edep())-kpoti)/kwIon) + 1;
nel=TMath::Min(nel,300); // 300 electrons corresponds to 10 keV
- gMC->TrackPosition(pos);
- hits[0]=pos[0];
- hits[1]=pos[1];
- hits[2]=pos[2];
+ gMC->TrackPosition(p);
+ hits[0]=p[0];
+ hits[1]=p[1];
+ hits[2]=p[2];
hits[3]=(Float_t)nel;
// Add this hit
TLorentzVector mom;
gMC->TrackMomentum(mom);
Float_t ptot=mom.Rho();
- Float_t beta_gamma = ptot/gMC->TrackMass();
+ Float_t betaGamma = ptot/gMC->TrackMass();
- if(gMC->IdFromPDG(gMC->TrackPid()) <= 3 && ptot > 0.002)
+ Int_t pid=gMC->TrackPid();
+ if((pid==kElectron || pid==kPositron) && ptot > 0.002)
{
- pp = prim*1.58; // electrons above 20 MeV/c are on the plateau!
+ pp = kprim*1.58; // electrons above 20 MeV/c are on the plateau!
}
else
{
- pp=prim*BetheBloch(beta_gamma);
+ pp=kprim*BetheBloch(betaGamma);
if(TMath::Abs(charge) > 1.) pp *= (charge*charge);
}
//
// Bethe-Bloch energy loss formula
//
- const Double_t p1=0.76176e-1;
- const Double_t p2=10.632;
- const Double_t p3=0.13279e-4;
- const Double_t p4=1.8631;
- const Double_t p5=1.9479;
+ const Double_t kp1=0.76176e-1;
+ const Double_t kp2=10.632;
+ const Double_t kp3=0.13279e-4;
+ const Double_t kp4=1.8631;
+ const Double_t kp5=1.9479;
Double_t dbg = (Double_t) bg;
Double_t beta = dbg/TMath::Sqrt(1.+dbg*dbg);
- Double_t aa = TMath::Power(beta,p4);
- Double_t bb = TMath::Power(1./dbg,p5);
+ Double_t aa = TMath::Power(beta,kp4);
+ Double_t bb = TMath::Power(1./dbg,kp5);
- bb=TMath::Log(p3+bb);
+ bb=TMath::Log(kp3+bb);
- return ((Float_t)((p2-aa-bb)*p1/aa));
+ return ((Float_t)((kp2-aa-bb)*kp1/aa));
}
+
+