+/**************************************************************************
+ * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
+ * *
+ * Author: The ALICE Off-line Project. *
+ * Contributors are mentioned in the code where appropriate. *
+ * *
+ * Permission to use, copy, modify and distribute this software and its *
+ * documentation strictly for non-commercial purposes is hereby granted *
+ * without fee, provided that the above copyright notice appears in all *
+ * copies and that both the copyright notice and this permission notice *
+ * appear in the supporting documentation. The authors make no claims *
+ * about the suitability of this software for any purpose. It is *
+ * provided "as is" without express or implied warranty. *
+ **************************************************************************/
+
+/*
+$Log$
+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 //
// //
//Begin_Html
/*
-<img src="gif/AliTPCv2Class.gif">
+<img src="picts/AliTPCv2Class.gif">
*/
//End_Html
// //
// //
///////////////////////////////////////////////////////////////////////////////
+#include <stdlib.h>
#include <TMath.h>
-#include <TGeometry.h>
+
#include "AliTPCv2.h"
+#include "AliTPCD.h"
#include "AliRun.h"
-#include <iostream.h>
-#include <fstream.h>
-
-#include "AliMC.h"
#include "AliConst.h"
-#include <stdlib.h>
-
-#include "AliTPCParam.h"
-#include "AliTPCD.h"
+#include "AliPDG.h"
ClassImp(AliTPCv2)
//
//Begin_Html
/*
- <img src="gif/AliTPCv2.gif">
+ <img src="picts/AliTPCv2.gif">
*/
//End_Html
//Begin_Html
/*
- <img src="gif/AliTPCv2Tree.gif">
+ <img src="picts/AliTPCv2Tree.gif">
*/
//End_Html
- AliMC* pMC = AliMC::GetMC();
+ AliTPCParam * fTPCParam = &(fDigParam->GetParam());
+
+ Int_t *idtmed = fIdtmed->GetArray();
- Int_t *idtmed = gAlice->Idtmed();
+ Float_t dm[21];
+ Int_t idrotm[120];
- AliTPCParam * fTPCParam = &(fDigParam->GetParam());
+ Int_t nRotMat = 0;
+
+ Int_t i,ifl1,ifl2;
- Float_t tana;
- Int_t isll;
- Float_t rlsl, wlsl, rssl, rlsu, wssl, wlsu, rssu, wssu;
- Int_t i;
- Float_t alpha, x, y, z, sec_thick;
-
- Float_t r1, r2, x1, z0, z1, x2, theta1, theta2, theta3, dm[21];
- Int_t il, iu;
- Float_t z_side, zz;
- Int_t idrotm[100];
-
- Float_t x0l, x0u;
- Int_t idr;
- Float_t thl, opl;
- Int_t ils, iss;
- Float_t thu, opu;
- Int_t ifl1 = 0, ifl2 = 0;
- Float_t phi1, phi2, phi3;
+ Int_t nInnerSector = fTPCParam->GetNInnerSector()/2;
+ Int_t nOuterSector = fTPCParam->GetNOuterSector()/2;
// ---------------------------------------------------
// sector specification check
ifl1 = 0;
for (i = 0; i < 6; ++i) {
- if (fSecLows[i] > 0 && fSecLows[i] <25) {
+ if (fSecLows[i] >= 0 && fSecLows[i] < 2*nInnerSector) {
ifl1 = 1;
printf("*** SECTOR %d selected\n",fSecLows[i]);
}
ifl2 = 0;
for (i = 0; i < 12; ++i) {
- if (fSecUps[i] > 24 && fSecUps[i] < 73) {
+ if (fSecUps[i] > 2*nInnerSector-1 &&
+ fSecUps[i] < 2*(nInnerSector+nOuterSector)) {
ifl2 = 1;
printf("*** SECTOR %d selected\n",fSecUps[i]);
}
printf("!!! PROGRAM STOPPED !!!\n");
exit(1);
}
+
// ----------------------------------------------------
- // FIELD CAGE WITH ENDCAPS - CARBON FIBER
+ // FIELD CAGE WITH ENDCAPS - G10
// THIS IS ALSO A TPC MOTHER VOLUME
// ----------------------------------------------------
+
dm[0] = 76.;
dm[1] = 278.;
dm[2] = 275.;
-
- pMC->Gsvolu("TPC ", "TUBE", idtmed[407], dm, 3);
- // -------------------------------------------------------
- // drift gas Ne/CO2 (90/10 volume) - nonsensitive
- // field cage thickness = 0.52% X0
- // ----------------------------------------------------
- dm[0] = 76.+0.09776;
- dm[1] = 257.;
+
+ gMC->Gsvolu("TPC ", "TUBE", idtmed[8], dm, 3);
+
+ //-----------------------------------------------------
+ // Endcap cover c-fibre 0.86% X0
+ //-----------------------------------------------------
+
+ dm[0] = 78.;
+ dm[1] = 258.;
+ dm[2] = 0.95;
+
+ gMC->Gsvolu("TPEC","TUBE",idtmed[10],dm,3);
+
+ //-----------------------------------------------------
+ // Drift gas , leave 2 cm at the outer radius
+ // and inner raddius
+ //-----------------------------------------------------
+
+ dm[0] = 78.;
+ dm[1] = 258.;
dm[2] = 250.;
-
- pMC->Gsvolu("TGAS", "TUBE", idtmed[402], dm, 3);
- // ------------------------------------------------------
- // "side" gas volume (the same as drift gas),
- // here the readout chambers are positioned
- // ------------------------------------------------------
- dm[2] = 0.5*(275.-250.);
- z_side = dm[2];
-
- pMC->Gsvolu("TPSG", "TUBE", idtmed[401], dm, 3);
- // ------------------------------------------------------
- // HV midplane - 20 microns of mylar
- // -----------------------------------------------------
- dm[2] = .001;
-
- pMC->Gsvolu("TPHV", "TUBE", idtmed[405], dm, 3);
-
- // ====================================================
- // lower and upper readout chambers
- // ====================================================
- // sectros opening angles in degrees
- // ---------------------------------------------------
- opl = 30.;
- opu = 15.;
- thl = TMath::Tan(opl * .5 * kDegrad);
- thu = TMath::Tan(opu * .5 * kDegrad);
- // ---------------------------------------------------
- // S and L-sectors radii
- // ---------------------------------------------------
- rssl = 88.;
- rssu = 136.;
- rlsl = 142.;
- rlsu = 250.;
- // --------------------------------------------------
- // Sectors widths
- // --------------------------------------------------
- wssl = 46.5;
- wssu = 72.2;
- wlsl = 37.;
- wlsu = 65.4;
- // ---------------------------------------------------
- // Sector thickness 25% of X0 (Al)
- // ---------------------------------------------------
- sec_thick = 2.225;
- // ---------------------------------------------------
- // S-sectors (lower sectors)
- // ---------------------------------------------------
- dm[0] = wssl * .5;
- dm[1] = wssu * .5;
- dm[2] = sec_thick * .5;
- dm[3] = (rssu - rssl) * .5;
-
- x0l = rssl + dm[3];
-
- pMC->Gsvolu("TRCS", "TRD1", idtmed[399], dm, 4);
- // -----------------------------------------------------
- // S-sectors --> "gas sectors" - sensitive
- // -----------------------------------------------------
- dm[2] = (250.-0.001)/2.;
- pMC->Gsvolu("TSGA", "TRD1", idtmed[403], dm, 4);
+
+ gMC->Gsvolu("TGAS", "TUBE", idtmed[3], dm, 3);
+
+ //------------------------------------------------------
+ // membrane holder - carbon fiber
+ //------------------------------------------------------
+
+
+ gMC->Gsvolu("TPMH","TUBE",idtmed[6],dm,0);
+
+ dm[0] = 252.;
+ dm[1] = 258.;
+ dm[2] = 0.2;
+
+ gMC->Gsposp("TPMH",1,"TGAS",0.,0.,0.,0,"ONLY",dm,3);
+
+ dm[0] = 78.;
+ dm[1] = 82.;
+ dm[2] = 0.1;
+
+ gMC->Gsposp("TPMH",2,"TGAS",0.,0.,0.,0,"ONLY",dm,3);
+
+ //----------------------------------------------------------
+ // HV membrane - 25 microns of mylar
+ //----------------------------------------------------------
+
+ dm[0] = 82.;
+ dm[1] = 252.;
+ dm[2] = 0.00125;
+
+ gMC->Gsvolu("TPHV","TUBE",idtmed[5],dm,3);
+
+ gMC->Gspos("TPHV",1,"TGAS",0.,0.,0.,0,"ONLY");
+
+ gMC->Gspos("TGAS",1,"TPC ",0.,0.,0.,0,"ONLY");
+
+ //----------------------------------------------------------
+ // "side" gas volume, the same as the drift gas
+ // the readout chambers are placed there.
+ //----------------------------------------------------------
+
+ dm[0] = 78.;
+ dm[1] = 258.;
+ dm[2] = 0.5*(275. - 250.);
+
+ gMC->Gsvolu("TPSG", "TUBE", idtmed[2], dm, 3);
+
+ Float_t z_side = dm[2]; // 1/2 of the side gas thickness
+
+ //-----------------------------------------------------------
+ // Readout chambers , 25% of X0, I use Al as the material
+ //-----------------------------------------------------------
+
+ Float_t InnerOpenAngle = fTPCParam->GetInnerAngle();
+ Float_t OuterOpenAngle = fTPCParam->GetOuterAngle();
+
+ Float_t InnerAngleShift = fTPCParam->GetInnerAngleShift();
+ Float_t OuterAngleShift = fTPCParam->GetOuterAngleShift();
+
+ Float_t InSecLowEdge = fTPCParam->GetInSecLowEdge();
+ Float_t InSecUpEdge = fTPCParam->GetInSecUpEdge();
+
+ Float_t OuSecLowEdge = fTPCParam->GetOuSecLowEdge();
+ Float_t OuSecUpEdge = fTPCParam->GetOuSecUpEdge();
+
+
+ Float_t SecThick = 2.225; // Al
+
+ Float_t edge = fTPCParam->GetEdge();
+
+ // S (Inner) sectors
+
+ 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);
+
+ Float_t xCenterS = InSecLowEdge+dm[3];
+
+ gMC->Gsvolu("TRCS", "TRD1", idtmed[0], dm, 4);
+
+ // L (Outer) sectors
+
+ 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);
+
+ Float_t xCenterL = OuSecLowEdge+dm[3];
+
+ gMC->Gsvolu("TRCL", "TRD1", idtmed[0], dm, 4);
+
+ Float_t z1 = -z_side + SecThick*0.5;
+
+ //------------------------------------------------------------------
+ // S sectors - "gas sectors" (TRD1)
+ //------------------------------------------------------------------
+
+ 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
+
// -------------------------------------------------------------
// Only for the debugging purpose and resolution calculation
// Sensitive strips at the pad-row center
// -------------------------------------------------------------
- if (fSens >= 0) {
- pMC->Gsvolu("TSST", "TRD1", idtmed[403], dm, 0);
- dm[3] = .005;
-
- z0 = rssl + (rssu - rssl) * .5;
+
+ Int_t ns;
+
+ if(fSens>=0){
+
+ Float_t r1,r2,zz;
+
+ Float_t StripThick = 0.01; // 100 microns
+ Float_t dead = fTPCParam->GetDeadZone();
+
+ gMC->Gsvolu("TSST", "TRD1", idtmed[4], dm, 0);
+
+ dm[2] = 0.5*(250. - 0.002);
+ dm[3] = 0.5 * StripThick;
+
+
+ for (ns = 0; ns < fTPCParam->GetNRowLow(); ns++) {
+
+ 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 = -InSecLowEdge -0.5*(InSecUpEdge-InSecLowEdge);
+ zz += r1;
+ zz += dm[3];
+
+ gMC->Gsposp("TSST", ns+1, "TSGA", 0., 0., zz, 0, "ONLY", dm, 4);
+
- for (iss = 0; iss < fTPCParam->GetNRowLow(); ++iss) {
- r1 = fTPCParam->GetPadRowRadiiLow(iss);
- r2 = r1 + dm[3] * 2.;
- dm[0] = r1 * thl - .01;
- dm[1] = r2 * thl - .01;
-
- zz = -z0 + r1 +dm[3];
+ }
+
+ gMC->Gsord("TSGA", 3);
+
+ } // if strips selected
+
+
+ //-----------------------------------------------------------------
+ // 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[1] = OuterOpenAngle*kRaddeg;
+ dm[1] = (Float_t)TMath::Nint(dm[1]);
+
+ dm[2] = 1.;
+ dm[3] = 4.;
+
+ 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[10] = dm[7];
+ dm[11] = OuSecLowEdge;
+ dm[12] = OuSecUpEdge;
+
+ dm[13] = 250.;
+ dm[14] = dm[11];
+ dm[15] = dm[12];
+
+ gMC->Gsvolu("TLGA","PGON",idtmed[4],dm,16);
- pMC->Gsposp("TSST", iss+1, "TSGA", 0, 0, zz, 0, "ONLY", dm, 4);
- }
- pMC->Gsord("TSGA", 3);
- }
- // ---------------------------------------------------
- // L-sectors (upper sectors)
- // ---------------------------------------------------
- dm[0] = wlsl * .5;
- dm[1] = wlsu * .5;
- dm[2] = sec_thick * .5;
- dm[3] = (rlsu - rlsl) * .5;
-
- x0u = rlsl + dm[3];
-
- pMC->Gsvolu("TRCL", "TRD1", idtmed[399], dm, 4);
- // -----------------------------------------------------
- // L-sectors - "gas sectors" - sensitive!
- // -----------------------------------------------------
- dm[2] = (250.-0.001)/2.;
- pMC->Gsvolu("TLGA", "TRD1", idtmed[403], dm, 4);
- // -------------------------------------------------------------
- // Only for the debugging purpose and resolution calculation
- // Sensitive strips at the pad-row center
- // -------------------------------------------------------------
if (fSens >= 0) {
- pMC->Gsvolu("TLST", "TRD1", idtmed[403], dm, 0);
- dm[3] = .005;
+ Float_t rmax = dm[6];
+ Float_t r1,r2;
+ Float_t dead = fTPCParam->GetDeadZone();
- z0 = rlsl+ (rlsu - rlsl) * .5;
-
- for (ils = 0; ils <fTPCParam->GetNRowUp(); ++ils) {
- r1 = fTPCParam->GetPadRowRadiiUp(ils);
- r2 = r1 + dm[3] * 2.;
- dm[0] = r1 * thu - 2.63;
- dm[1] = r2 * thu - 2.63;
+ Float_t StripThick = 0.01; // 100 microns
- zz = -z0 + r1 +dm[3];
+ gMC->Gsvolu("TLST", "PGON", idtmed[4], dm, 0);
+
+ dm[0] = 360.*kDegrad - 0.5*OuterOpenAngle;
+ dm[0] *= kRaddeg;
+ dm[0] = (Float_t)TMath::Nint(dm[0]);
+
+ dm[1] = OuterOpenAngle*kRaddeg;
+ dm[1] = (Float_t)TMath::Nint(dm[1]);
- pMC->Gsposp("TLST", ils+1, "TLGA", 0, 0, zz, 0, "ONLY", dm, 4);
- }
- pMC->Gsord("TLGA", 3);
- }
- // ******************************************************
- // ------------------------------------------------
- // positioning of lower sectors (1-12)*2
- // rotation matrices 1-12
-
- // the isec_al flag allows to select all (<0) or
- // only a few (up to 6) sectors
- // ------------------------------------------------
- z = (250.+0.001)/2.;
- z1 = -z_side + sec_thick * .5;
-
- for (il = 1; il <= 12; ++il) {
- phi1 = (il - 1) * opl + 270.;
- if (phi1 > 360.) {
- phi1 += -360.;
- }
- theta1 = 90.;
- phi2 = 90.;
- theta2 = 180.;
- phi3 = (il - 1) * opl;
- theta3 = 90.;
-
- idr = il;
- AliMatrix(idrotm[idr], theta1, phi1, theta2, phi2, theta3, phi3);
-
- alpha = (il - 1) * opl * kDegrad;
- x = x0l * TMath::Cos(alpha);
- y = x0l * TMath::Sin(alpha);
-
- if (fSecAL < 0) {
- // -----------------------------------------------------------
- // position ALL lower sectors
- // -----------------------------------------------------------
- pMC->Gspos("TSGA", il, "TGAS", x, y, z, idrotm[idr], "ONLY");
- pMC->Gspos("TSGA",il+12 , "TGAS", x, y, -z, idrotm[idr], "ONLY");
- } else {
- // -----------------------------------------------------------
- // position selected lower sectors
- // -----------------------------------------------------------
- for (isll = 1; isll <= 6; ++isll) {
- if (fSecLows[isll - 1] == il) {
- pMC->Gspos("TSGA", il, "TGAS", x, y, z, idrotm[idr], "ONLY");
- } else if (fSecLows[isll - 1] == il + 12) {
- pMC->Gspos("TSGA",il+12 , "TGAS", x, y, -z, idrotm[idr],"ONLY");
- }
- }
- }
-
- pMC->Gspos("TRCS", il, "TPSG", x, y, z1, idrotm[idr], "ONLY");
-
- }
- // ----------------------------------------------------
- // positioning of upper sectors (1-24)*2
- // rotation matrices 13-36
- // the isec_au flag allows to select all (<0) or
- // only a few (up to 12) sectors
- // ----------------------------------------------------
- for (iu = 1; iu <= 24; ++iu) {
- phi1 = (iu - 1) * opu + 270.;
- if (phi1 > 360.) {
- phi1 += -360.;
- }
- theta1 = 90.;
- phi2 = 90.;
- theta2 = 180.;
- phi3 = (iu - 1) * opu;
- theta3 = 90.;
-
- idr = iu + 12;
- AliMatrix(idrotm[idr], theta1, phi1, theta2, phi2, theta3, phi3);
-
- alpha = (iu - 1) * opu * kDegrad;
- x = x0u * TMath::Cos(alpha);
- y = x0u * TMath::Sin(alpha);
-
- if (fSecAU < 0) {
- // -------------------------------------------------------------
- // position ALL upper sectors
- // -------------------------------------------------------------
- pMC->Gspos("TLGA", iu, "TGAS", x, y, z, idrotm[idr], "ONLY");
- pMC->Gspos("TLGA",iu+24 , "TGAS", x, y, -z, idrotm[idr], "ONLY");
- } else {
- // -------------------------------------------------------------
- // position selected upper sectors
- // -------------------------------------------------------------
- for (isll = 1; isll <= 12; ++isll) {
- if (fSecUps[isll - 1] == iu + 24) {
- pMC->Gspos("TLGA", iu, "TGAS", x, y, z, idrotm[idr], "ONLY");
- } else if (fSecUps[isll - 1] == iu + 48) {
- pMC->Gspos("TLGA",iu+24 , "TGAS", x, y, -z, idrotm[idr],"ONLY");
- }
- }
- }
-
- pMC->Gspos("TRCL", iu, "TPSG", x, y, z1, idrotm[idr], "ONLY");
- }
- // --------------------------------------------------------
- // Spoke wheel structures
- // --------------------------------------------------------
- pMC->Gsvolu("TSWS", "TUBE", idtmed[399], dm, 0);
-
- z0 = -z_side + 2.;
-
- dm[0] = 82.;
- dm[1] = 86.;
- dm[2] = 1.;
-
- pMC->Gsposp("TSWS", 1, "TPSG", 0, 0, z0, 0, "ONLY", dm, 3);
-
- dm[0] = 253.;
- dm[1] = 257.;
-
- pMC->Gsposp("TSWS", 2, "TPSG", 0, 0, z0, 0, "ONLY", dm, 3);
-
- dm[0] = 140.9;
- dm[1] = 141.9;
-
- pMC->Gsposp("TSWS", 3, "TPSG", 0, 0, z0, 0, "ONLY", dm, 3);
-
- // -------------------------------------------------------
- // this volumes are to avoid overlaping
- // -------------------------------------------------------
- z0 = 253.;
-
- dm[0] = 76.;
- dm[1] = 76.+0.09776;
-
- pMC->Gsposp("TSWS", 4, "TPC ", 0, 0, z0, 0, "ONLY", dm, 3);
- pMC->Gsposp("TSWS", 5, "TPC ", 0, 0, -z0, 0, "ONLY", dm, 3);
-
- z0 += 21.;
-
- pMC->Gsposp("TSWS", 6, "TPC ", 0, 0, z0, 0, "ONLY", dm, 3);
- pMC->Gsposp("TSWS", 7, "TPC ", 0, 0, -z0, 0, "ONLY", dm, 3);
-
- dm[0] = 257.;
- dm[1] = 257.+0.09776;
- dm[2] = 11.5;
-
- z0 = 263.5;
-
- pMC->Gsposp("TSWS", 8, "TPC ", 0, 0, z0, 0, "ONLY", dm, 3);
- pMC->Gsposp("TSWS", 9, "TPC ", 0, 0, -z0, 0, "ONLY", dm, 3);
- // ==========================================================
- // wheels
- // ==========================================================
- // ----------------------------------------------------------
- // Large wheel -> positioned in the TPC
- // ----------------------------------------------------------
- dm[0] = 257.+0.09776;
- dm[1] = 278.;
- dm[2] = 11.5;
- pMC->Gsvolu("TPW1", "TUBE", idtmed[399], dm, 3);
-
- dm[0] = 259.;
- dm[1] = 278.;
- dm[2] = 9.5;
-
- pMC->Gsvolu("TPW2", "TUBE", idtmed[498], dm, 3);
-
- pMC->Gspos("TPW2", 1, "TPW1", 0, 0, 0, 0, "ONLY");
-
- pMC->Gspos("TPW1", 1, "TPC ", 0, 0, z0, 0, "ONLY");
- pMC->Gspos("TPW1", 2, "TPC ", 0, 0, -z0, 0, "ONLY");
- // -----------------------------------------------------------
- // Small wheel -> positioned in the TPSG
- // -----------------------------------------------------------
- dm[0] = 76.+0.09776;
- dm[1] = 82.;
- dm[2] = 11.5;
-
- pMC->Gsvolu("TPW3", "TUBE", idtmed[399], dm, 3);
-
- dm[0] = 76.+0.09776;
- dm[1] = 80.;
- dm[2] = 9.5;
-
- pMC->Gsvolu("TPW4", "TUBE", idtmed[401], dm, 3);
-
- pMC->Gspos("TPW4", 1, "TPW3", 0, 0, 0, 0, "ONLY");
-
- z0 = 1.;
-
- pMC->Gspos("TPW3", 1, "TPSG", 0, 0, z0, 0, "ONLY");
- // ---------------------------------------------------------
- // spokes, inner and outer, also the inner ring
- // ---------------------------------------------------------
- dm[0] = 0.5*(135.9-82.1);
- dm[1] = 3.;
- dm[2] = 2.;
-
- x1 = dm[0] + 82.;
-
- pMC->Gsvolu("TSPI", "BOX ", idtmed[399], dm, 3);
-
- dm[1] = 2.;
- dm[2] = 1.;
-
- pMC->Gsvolu("TSP1", "BOX ", idtmed[498], dm, 3);
-
- pMC->Gspos("TSP1", 1, "TSPI", 0, 0, 0, 0, "ONLY");
-
- dm[0] = 0.5*(256.9-142.1);
- dm[1] = 3.;
- dm[2] = 2.;
-
- x2 = dm[0] + 142.;
-
- pMC->Gsvolu("TSPO", "BOX ", idtmed[399], dm, 3);
-
- dm[1] = 2.;
dm[2] = 1.;
-
- pMC->Gsvolu("TSP2", "BOX ", idtmed[498], dm, 3);
+ dm[3] = 2.;
- pMC->Gspos("TSP2", 1, "TSPO", 0, 0, 0, 0, "ONLY");
- // --------------------------------------------------------
- dm[0] = 136.;
- dm[1] = 142.;
- dm[2] = 2.;
+ dm[7] = 250.;
- pMC->Gsvolu("TSWH", "TUBE", idtmed[399], dm, 3);
+ Float_t xx = dead/TMath::Tan(0.5*OuterOpenAngle);
- dm[0] = 137.;
- dm[1] = 141.;
- dm[2] = 1.;
+ for(ns=0;ns<fTPCParam->GetNRowUp();ns++){
+
+ r1 = fTPCParam->GetPadRowRadiiUp(ns)-xx;
+ r2 = r1 + StripThick;
- pMC->Gsvolu("TSW1", "TUBE", idtmed[498], dm, 3);
-
- pMC->Gspos("TSW1", 1, "TSWH", 0, 0, 0, 0, "ONLY");
-
- z0 = z_side - .16168 - 2.;
- // --------------------------------------------------------
- pMC->Gspos("TSWH", 1, "TPSG", 0, 0, z0, 0, "ONLY");
- // -------------------------------------------------------
- // posiioning of the inner spokes
- // -------------------------------------------------------
- for (il = 1; il <= 6; ++il) {
- phi1 = opl * .5 + (il - 1) * 2. * opl;
- theta1 = 90.;
- phi2 = opl * .5 + 90. + (il - 1) * 2. * opl;
- if (phi2 > 360.) {
- phi2 += -360.;
+ dm[5] = r1;
+ dm[6] = r2;
+
+ dm[8] = r1;
+ dm[9] = r2;
+
+ if(r2+xx < rmax){
+ dm[4] = 0.002;
}
- theta2 = 90.;
- phi3 = 0.;
- theta3 = 0.;
-
- alpha = phi1 * kDegrad;
- x = x1 * TMath::Cos(alpha);
- y = x1 * TMath::Sin(alpha);
-
- idr = il + 36;
+ else{
+ dm[4] = 0.202;
+ }
+
+ gMC->Gsposp("TLST",ns+1,"TLGA",xx,0.,0.,0,"ONLY",dm,10);
+
+ }
+
+ gMC->Gsord("TLGA", 4);
+
+ } // if strips selected
+
+ //------------------------------------------------------------------
+ // Positioning of the S-sector readout chambers
+ //------------------------------------------------------------------
+
+ Float_t zs = 0.5*(250.+0.002);
+
+ 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
+
+ phi1 = (Float_t)TMath::Nint(phi1);
+
+ if (phi1 > 360.) phi1 -= 360.;
- AliMatrix(idrotm[idr], theta1, phi1, theta2, phi2, theta3, phi3);
- pMC->Gspos("TSPI", il, "TPSG", x, y, z0, idrotm[idr], "ONLY");
+ 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.;
+
+ theta3 = 90.;
+
+ alpha = phi3*kDegrad;
+
+ 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){
+
+ //---------------------------------------------------------------
+ // 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");
}
-
- for (iu = 1; iu <= 12; ++iu) {
- phi1 = opu * .5 + (iu - 1) * 2. * opu;
- theta1 = 90.;
- phi2 = opu * .5 + 90. + (iu - 1) * 2. * opu;
- if (phi2 > 360.) {
- phi2 += -360.;
+
+ else{
+
+ //---------------------------------------------------------------
+ // position selected sectors
+ //---------------------------------------------------------------
+
+ for(Int_t sel=0;sel<6;sel++){
+
+ 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");
+ }
}
- theta2 = 90.;
- phi3 = 0.;
- theta3 = 0.;
-
- alpha = phi1 * kDegrad;
- x = x2 * TMath::Cos(alpha);
- y = x2 * TMath::Sin(alpha);
-
- idr = iu + 42;
-
- AliMatrix(idrotm[idr], theta1, phi1, theta2, phi2, theta3, phi3);
- pMC->Gspos("TSPO", iu, "TPSG", x, y, z0, idrotm[idr], "ONLY");
}
- // --------------------------------------------------------
- // endcap cover (C, 0.86% X0)
- // --------------------------------------------------------
- dm[0] = 76.+0.09776;
- dm[1] = 257.;
- dm[2] = 0.16168*0.5;
+
+ nRotMat++;
+
+ }
- pMC->Gsvolu("TCOV", "TUBE", idtmed[407], dm, 3);
+ //-------------------------------------------------------------------
+ // Positioning of the L-sectors readout chambers
+ //-------------------------------------------------------------------
- z0 = z_side - dm[2];
+ for(ns=0;ns<nOuterSector;ns++){
+ phi1 = ns * OuterOpenAngle + 270.*kDegrad + OuterAngleShift;
+ phi1 *= kRaddeg; // in degrees
+
+ phi1 = (Float_t)TMath::Nint(phi1);
- pMC->Gspos("TCOV", 1, "TPSG", 0, 0, z0, 0, "ONLY");
- // --------------------------------------------------------
- // put the readout chambers into the TPC
- // --------------------------------------------------------
+
+ if (phi1 > 360.) phi1 -= 360.;
+
theta1 = 90.;
- phi1 = 0.;
- theta2 = 90.;
- phi2 = 270.;
- theta3 = 180.;
- phi3 = 0.;
+ phi2 = 90.;
+ theta2 = 180.;
+ phi3 = ns * OuterOpenAngle+OuterAngleShift;
+ phi3 *= kRaddeg; // in degrees
- AliMatrix(idrotm[55], theta1, phi1, theta2, phi2, theta3, phi3);
-
- z0 = z_side + 250.;
-
- pMC->Gspos("TPSG", 1, "TPC ", 0, 0, z0, 0, "ONLY");
- pMC->Gspos("TPSG", 2, "TPC ", 0, 0, -z0, idrotm[55], "ONLY");
- // ---------------------------------------------------------
- // outer gas insulation (CO2)
- // ---------------------------------------------------------
- dm[0] = 257.+0.09776;
- dm[1] = 278.-0.25004;
- dm[2] = 275.-23.;
-
- pMC->Gsvolu("TPOI", "TUBE", idtmed[406], dm, 3);
-
- pMC->Gspos("TPHV", 1, "TGAS", 0, 0, 0, 0, "ONLY");
- pMC->Gspos("TGAS", 1, "TPC ", 0, 0, 0, 0, "ONLY");
- pMC->Gspos("TPOI", 1, "TPC ", 0, 0, 0, 0, "ONLY");
-
- pMC->Gspos("TPC ", 1, "ALIC", 0, 0, 0, 0, "ONLY");
- // ======================================================
- // all volumes below are positioned in ALIC
- // ======================================================
- // ------------------------------------------------------
- // the last parts of the smaller wheel (TSWS)
- // ------------------------------------------------------
- dm[0] = 74.;
- dm[1] = 76.;
- dm[2] = 1.;
-
- z0 = 253.;
-
- pMC->Gsposp("TSWS", 10, "TPC ", 0, 0, z0, 0, "ONLY", dm, 3);
- pMC->Gsposp("TSWS", 11, "TPC ", 0, 0, -z0, 0, "ONLY", dm, 3);
+ phi3 = (Float_t)TMath::Nint(phi3);
- dm[0] = 70.;
-
- z0 += 21.;
-
- pMC->Gsposp("TSWS", 12, "TPC ", 0, 0, z0, 0, "ONLY", dm, 3);
- pMC->Gsposp("TSWS", 13, "TPC ", 0, 0, -z0, 0, "ONLY", dm, 3);
- // ----------------------------------------------------
- // Inner vessel (PCON)
- // This volume is to be positioned directly in ALIC
- // ----------------------------------------------------
- dm[0] = 0.;
- dm[1] = 360.;
- dm[2] = 4.;
-
- dm[3] = -250.;
- dm[4] = 75.;
- dm[5] = 76.;
-
- 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] = 75.;
- dm[14] = 76.;
-
- pMC->Gsvolu("TPIV", "PCON", idtmed[407], dm, 15);
- // --------------------------------------------------------
- // fill the inner vessel with CO2, (HV kDegrader)
- // cone parts have different thickness
- // than the central barrel, according to the TP
- // --------------------------------------------------------
- tana = 75./185.5;
-
- dm[0] = 0.;
- dm[1] = 360.;
- dm[2] = 6.;
-
- dm[3] = -(250.-0.2162);
- dm[4] = (185.5-0.2126)*tana+0.2126;
- dm[5] = 76-0.001;
-
- dm[6] = -64.5;
- dm[7] = 50.+0.2162;
- dm[8] = 76-0.001;
-
- dm[9] = -64.5;
- dm[10] = 50+0.05076;
- dm[11] = 76-0.001;
-
- dm[12] = 64.5;
- dm[13] = 50+0.05076;
- dm[14] = 76-0.001;
-
- dm[15] = 64.5;
- dm[16] = 50.+0.2162;
- dm[17] = 76-0.001;
-
- dm[18] = (250.-0.2162);
- dm[19] = (185.5-0.2126)*tana+0.2126;
- dm[20] = 76-0.001;
-
- pMC->Gsvolu("TPVD", "PCON", idtmed[406], dm, 21);
-
- pMC->Gspos("TPVD", 1, "TPIV", 0, 0, 0, 0, "ONLY");
+
+ if(phi3 > 360.) phi3 -= 360.;
+
+ theta3 = 90.;
+
+ alpha = phi3*kDegrad;
+
+ x = xCenterL * TMath::Cos(alpha);
+ y = xCenterL * TMath::Sin(alpha);
+
+ AliMatrix(idrotm[nRotMat], theta1, phi1, theta2, phi2, theta3, phi3);
+
+
+ gMC->Gspos("TRCL", ns+1, "TPSG", x, y, z1, idrotm[nRotMat], "ONLY");
+
+ nRotMat++;
+
+ }
+
+ //-------------------------------------------------------------------
+ // Positioning of the L-sectors (gas sectors)
+ //-------------------------------------------------------------------
+
+ for(ns=0;ns<nOuterSector;ns++){
+
+ phi1 = ns*OuterOpenAngle + OuterAngleShift;
+ phi1 *= kRaddeg;
- pMC->Gspos("TPIV", 1, "ALIC", 0, 0, 0, 0, "ONLY");
- // ---------------------------------------------------
- // volumes ordering
- // ---------------------------------------------------
- pMC->Gsord("TGAS", 6);
- pMC->Gsord("TPSG", 6);
-}
+ phi1 = (Float_t)TMath::Nint(phi1);
+ if(phi1>360.) phi1 -= 360.;
+
+ theta1 = 90.;
+
+ phi2 = 90. + phi1;
+ if(phi2>360.) phi2 -= 360.;
+
+ theta2 = 90.;
+
+ phi3 = 0.;
+ theta3 = 0.;
+
+ if(fSecAU < 0) {
+
+ //--------------------------------------------------------------
+ // position all sectors
+ //--------------------------------------------------------------
+
+ AliMatrix(idrotm[nRotMat], theta1, phi1, theta2, phi2, theta3, phi3);
+
+ gMC->Gspos("TLGA",ns+1,"TGAS" ,0.,0.,0.,idrotm[nRotMat],"ONLY");
+
+ nRotMat++;
+
+ // reflection !!
+
+ phi3 = 0.;
+ theta3 = 180.;
+
+ AliMatrix(idrotm[nRotMat], theta1, phi1, theta2, phi2, theta3, phi3);
+
+ gMC->Gspos("TLGA",ns+1+nOuterSector,"TGAS" ,0.,0.,0.,idrotm[nRotMat],"ONLY");
+
+ nRotMat++;
+ }
+
+ else{
+
+ //---------------------------------------------------------------
+ // position selected sectors
+ //---------------------------------------------------------------
+
+ for(Int_t sel=0;sel<12;sel++){
+
+ 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++;
+
+ }
+ else if(fSecUps[sel] == ns+2*nInnerSector+nOuterSector){
+
+ // reflection
+
+ phi3 = 0.;
+ theta3 = 180.;
+
+ AliMatrix(idrotm[nRotMat], theta1, phi1, theta2, phi2, theta3, phi3);
+ gMC->
+ Gspos("TLGA",ns+1+nOuterSector,"TGAS" ,0.,0.,0.,idrotm[nRotMat],"ONLY");
+ nRotMat++;
+
+ }
+
+ }
+
+ }
+
+ }
+
+ Float_t z0 = z_side - 0.95;
+
+ gMC->Gspos("TPEC",1,"TPSG",0.,0.,z0,0,"ONLY");
+
+ // ==========================================================
+ // wheels
+ // ==========================================================
+
+ //
+ // auxilary structures
+ //
+
+
+ gMC->Gsvolu("TPWI","TUBE",idtmed[24],dm,0); // "air"
+
+ // ----------------------------------------------------------
+ // Large wheel -> positioned in the TPC
+ // ----------------------------------------------------------
+
+
+ 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);
+
+ 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);
+
+ gMC->Gspos("TPWL", 1, "TPC ", 0, 0, z0, 0, "ONLY");
+ gMC->Gspos("TPWL", 2, "TPC ", 0, 0, -z0, 0, "ONLY");
+
+ //
+ // Outer vessel + CO2 HV degrader
+ //
+
+ dm[0] = 260.;
+ dm[1] = 278.;
+ dm[2] = 252.;
+
+ gMC->Gsvolu("TPCO","TUBE",idtmed[12],dm,3);
+
+ dm[0] = 275.;
+ dm[1] = 278.;
+
+ gMC->Gsvolu("TPOV","TUBE",idtmed[10],dm,3);
+
+ gMC->Gspos("TPOV",1,"TPCO",0.,0.,0.,0,"ONLY");
+
+
+ // G10 plugs
+
+ dm[0] = 258.;
+ dm[1] = 260.;
+ dm[2] = 1.;
+
+ 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");
+
+ gMC->Gspos("TPCO",1,"TPC ",0.,0.,0.,0,"ONLY");
+
+
+ //----------------------------------------------------------
+ // Small wheel -> positioned in "side gas
+ //----------------------------------------------------------
+
+ dm[0] = 78.;
+ dm[1] = 82.;
+ dm[2] = 11.5;
+
+ gMC->Gsvolu("TPWS", "TUBE", idtmed[0], dm, 3);
+
+ dm[0] = 78.;
+ dm[1] = dm[1]-2;
+ dm[2] = dm[2]-2.;
+
+ 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"
+
+ gMC->Gspos("TPWS", 1, "TPSG", 0, 0, z0, 0, "ONLY");
+
+
+ // to avoid overlaps
+
+ dm[0] = 76.;
+ dm[1] = 78.;
+ dm[2] = 11.5;
+
+ gMC->Gsvolu("TPS1","TUBE",idtmed[0],dm,3);
+
+ dm[2] = 9.5;
+
+ gMC->Gsvolu("TPS2","TUBE",idtmed[24],dm,3);
+
+ gMC->Gspos("TPS2",1,"TPS1",0.,0.,0.,0,"ONLY");
+
+ z0= 263.5;
+
+ gMC->Gspos("TPS1",1,"TPC ",0.,0.,z0,0,"ONLY");
+ gMC->Gspos("TPS1",2,"TPC ",0.,0.,-z0,0,"ONLY");
+
+ // G10 plug
+
+ dm[0] = 76.;
+ dm[1] = 78.;
+ dm[2] = 1.;
+
+ gMC->Gsvolu("TPG2","TUBE",idtmed[8],dm,3);
+
+ z0 = 251.;
+
+ gMC->Gspos("TPG2",1,"TPC ",0.,0.,z0,0,"ONLY");
+ gMC->Gspos("TPG2",2,"TPC ",0.,0.,-z0,0,"ONLY");
+
+
+ //---------------------------------------------------------
+ // central wheel 6 (radial direction) x 4 (along z) cm2
+ //---------------------------------------------------------
+
+ dm[0] = 140.;
+ dm[1] = 146.;
+ dm[2] = 2.;
+
+ gMC->Gsvolu("TPWC","TUBE",idtmed[0],dm,3);
+
+ dm[0] = dm[0] + 2.;
+ dm[1] = dm[1] - 2.;
+ dm[2] = dm[2] - 1.;
+
+ gMC->Gsposp("TPWI",2,"TPWC",0.,0.,0.,0,"ONLY",dm,3);
+
+ z0 = z_side - 1.9 - 2.;
+
+ gMC->Gspos("TPWC",1,"TPSG",0.,0.,z0,0,"ONLY");
+
+ //
+
+ gMC->Gsvolu("TPSE","BOX ",idtmed[24],dm,0); // "empty" part of the spoke
+
+
+ //---------------------------------------------------------
+ // inner spokes (nSectorInner)
+ //---------------------------------------------------------
+
+ dm[0] = 0.5*(139.9-82.1);
+ dm[1] = 3.;
+ dm[2] = 2.;
+
+ Float_t x1 = dm[0]+82.;
+
+ gMC->Gsvolu("TPSI","BOX",idtmed[0],dm,3);
+
+ dm[1] = dm[1]-1.;
+ dm[2] = dm[2]-1.;
+
+ gMC->Gsposp("TPSE",1,"TPSI",0.,0.,0.,0,"ONLY",dm,3);
+
+ for(ns=0;ns<nInnerSector;ns++){
+
+ phi1 = 0.5*InnerOpenAngle + ns*InnerOpenAngle + InnerAngleShift;
+ theta1=90.;
+ phi1 *=kRaddeg;
+
+ phi1 = (Float_t)TMath::Nint(phi1);
+ if(phi1>360.) phi1 -= 360.;
+
+ phi2 = phi1+90.;
+ if(phi2>360.) phi2 -= 360.;
+ theta2=90.;
+ phi3=0.;
+ theta3=0.;
+
+ alpha = phi1 * kDegrad;
+ x = x1 * TMath::Cos(alpha);
+ y = x1 * TMath::Sin(alpha);
+
+ AliMatrix(idrotm[nRotMat],theta1,phi1,theta2,phi2,theta3,phi3);
+
+ gMC->Gspos("TPSI",ns+1,"TPSG",x,y,z0,idrotm[nRotMat],"ONLY");
+
+ nRotMat++;
+
+ }
+
+ //-------------------------------------------------------------
+ // outer spokes (nSectorOuter)
+ //-------------------------------------------------------------
+
+ dm[0] = 0.5*(257.9-146.1);
+ dm[1] = 3.;
+ dm[2] = 2.;
+
+ x1 = dm[0] + 146.;
+
+ gMC->Gsvolu("TPSO","BOX ",idtmed[0],dm,3);
+
+ dm[1] = dm[1] - 1.;
+ dm[2] = dm[2] - 1.;
+
+ gMC->Gsposp("TPSE",2,"TPSO",0.,0.,0.,0,"ONLY",dm,3);
+
+ for(ns=0;ns<nOuterSector;ns++){
+
+ phi1 = 0.5*OuterOpenAngle + ns*OuterOpenAngle + OuterAngleShift;
+ theta1=90.;
+ phi1 *=kRaddeg;
+
+ phi1 = (Float_t)TMath::Nint(phi1);
+ if(phi1>360.) phi1 -= 360.;
+
+ phi2 = phi1+90.;
+ if(phi2>360.) phi2 -= 360.;
+ theta2=90.;
+ phi3=0.;
+ theta3=0.;
+
+ alpha = phi1 * kDegrad;
+ x = x1 * TMath::Cos(alpha);
+ y = x1 * TMath::Sin(alpha);
+
+ AliMatrix(idrotm[nRotMat],theta1,phi1,theta2,phi2,theta3,phi3);
+
+ gMC->Gspos("TPSO",ns+1,"TPSG",x,y,z0,idrotm[nRotMat],"ONLY");
+
+ nRotMat++;
+
+ }
+
+
+
+ // --------------------------------------------------------
+ // put the readout chambers into the TPC
+ // --------------------------------------------------------
+
+ theta1 = 90.;
+ phi1 = 0.;
+ theta2 = 90.;
+ 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.;
+
+ 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.;
+
+ gMC->Gsvolu("TPVD", "PCON", idtmed[12], dm, 15); // CO2
+
+ // cone parts
+
+ dm[0] = 0.;
+ dm[1] = 360.;
+ dm[2] = 2.;
+
+ dm[3] = 64.5;
+ dm[4] = 50.;
+ dm[5] = 51.6;
+
+ dm[6] = 250.;
+ dm[7] = 74.4;
+ dm[8] = 76.;
+
+
+ gMC->Gsvolu("TIVC","PCON",idtmed[11],dm,9); // C-fibre
+
+ gMC->Gspos("TIVC",1,"TPVD",0.,0.,0.,0,"ONLY");
+ gMC->Gspos("TIVC",2,"TPVD",0.,0.,0.,idrotm[nRotMat],"ONLY");
+
+ // barrel part
+
+ dm[0] = 50.;
+ dm[1] = 50.5;
+ dm[2] = 64.5;
+
+ gMC->Gsvolu("TIVB","TUBE",idtmed[9],dm,3);
+
+ gMC->Gspos("TIVB",1,"TPVD",0.,0.,0.,0,"ONLY");
+
+ gMC->Gspos("TPVD",1,"ALIC",0.,0.,0.,0,"ONLY");
+
+
+ // ---------------------------------------------------
+ // volumes ordering
+ // ---------------------------------------------------
+
+ gMC->Gsord("TGAS", 6);
+ gMC->Gsord("TPSG", 6);
+
+
+
+} // end of function
//_____________________________________________________________________________
void AliTPCv2::DrawDetector()
// Draw a shaded view of the Time Projection Chamber version 1
//
- AliMC* pMC = AliMC::GetMC();
-
// Set everything unseen
- pMC->Gsatt("*", "seen", -1);
+ gMC->Gsatt("*", "seen", -1);
//
// Set ALIC mother transparent
- pMC->Gsatt("ALIC","SEEN",0);
+ gMC->Gsatt("ALIC","SEEN",0);
//
// Set the volumes visible
- pMC->Gsatt("TPC","SEEN",0);
- pMC->Gsatt("TGAS","SEEN",0);
- pMC->Gsatt("TPSG","SEEN",0);
- pMC->Gsatt("TPHV","SEEN",1);
- pMC->Gsatt("TRCS","SEEN",1);
- pMC->Gsatt("TRCL","SEEN",1);
- pMC->Gsatt("TSWS","SEEN",1);
- pMC->Gsatt("TPW1","SEEN",1);
- pMC->Gsatt("TPW3","SEEN",1);
- pMC->Gsatt("TSPI","SEEN",1);
- pMC->Gsatt("TSPO","SEEN",1);
- pMC->Gsatt("TSWH","SEEN",1);
- pMC->Gsatt("TPOI","SEEN",1);
- pMC->Gsatt("TPIV","SEEN",1);
- pMC->Gsatt("TPVD","SEEN",1);
+ 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);
//
- pMC->Gdopt("hide", "on");
- pMC->Gdopt("shad", "on");
- pMC->Gsatt("*", "fill", 7);
- pMC->SetClipBox(".");
- pMC->SetClipBox("*", 0, 1000, -1000, 1000, -1000, 1000);
- pMC->DefaultRange();
- pMC->Gdraw("alic", 40, 30, 0, 12, 9.5, .025, .025);
- pMC->Gdhead(1111, "Time Projection Chamber");
- pMC->Gdman(18, 4, "MAN");
- pMC->Gdopt("hide","off");
+ gMC->Gdopt("hide", "on");
+ gMC->Gdopt("shad", "on");
+ gMC->Gsatt("*", "fill", 7);
+ gMC->SetClipBox(".");
+ gMC->SetClipBox("*", 0, 1000, -1000, 1000, -1000, 1000);
+ gMC->DefaultRange();
+ gMC->Gdraw("alic", 40, 30, 0, 12, 9.5, .025, .025);
+ gMC->Gdhead(1111, "Time Projection Chamber");
+ gMC->Gdman(18, 4, "MAN");
+ gMC->Gdopt("hide","off");
}
//_____________________________________________________________________________
// Define materials for version 2 of the Time Projection Chamber
//
- AliMC* pMC = AliMC::GetMC();
-
//
// Increase maximum number of steps
- pMC->SetMaxNStep(30000);
+ gMC->SetMaxNStep(30000);
//
AliTPC::CreateMaterials();
}
//
// Initialises version 2 of the TPC after that it has been built
//
- AliMC* pMC=AliMC::GetMC();
- Int_t *idtmed = gAlice->Idtmed();
+ Int_t *idtmed = fIdtmed->GetArray()-399;
AliTPC::Init();
- fIdSens1=pMC->VolId("TLGA"); // L-sector
- fIdSens2=pMC->VolId("TSGA"); // S-sector
- fIdSens3=pMC->VolId("TSST"); // strip - S-sector (not always used)
- fIdSens4=pMC->VolId("TLST"); // strip - S-sector (not always used)
+ 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)
- pMC->SetMaxNStep(30000); // max. number of steps increased
+ gMC->SetMaxNStep(30000); // max. number of steps increased
- pMC->Gstpar(idtmed[403],"LOSS",5);
+ gMC->Gstpar(idtmed[403],"LOSS",5);
printf("*** TPC version 2 initialized ***\n");
- printf("Maximum number of steps = %d\n",pMC->GetMaxNStep());
+ printf("Maximum number of steps = %d\n",gMC->GetMaxNStep());
//
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 big = 1.e10;
Float_t hits[4];
Int_t vol[2];
TClonesArray &lhits = *fHits;
- AliMC* pMC=AliMC::GetMC();
+ TLorentzVector pos;
+
+ AliTPCParam *fTPCParam = &(fDigParam->GetParam());
vol[1]=0;
//
- pMC->SetMaxStep(big);
+ gMC->SetMaxStep(big);
- if(!pMC->TrackAlive()) return; // particle has disappeared
+ if(!gMC->IsTrackAlive()) return; // particle has disappeared
- Float_t charge = pMC->TrackCharge();
+ Float_t charge = gMC->TrackCharge();
if(TMath::Abs(charge)<=0.) return; // take only charged particles
- id=pMC->CurrentVol(0, copy);
+ id=gMC->CurrentVolID(copy);
// Check the sensitive volume
if(id == fIdSens1)
{
- vol[0] = copy + 24; // L-sector number
+ vol[0] = copy + fTPCParam->GetNInnerSector()-1; // L-sector number
}
else if(id == fIdSens2)
{
- vol[0] = copy; // S-sector number
+ vol[0] = copy-1; // S-sector number
}
- else if(id == fIdSens3 && pMC->TrackEntering())
+ else if(id == fIdSens3 && gMC->IsTrackEntering())
{
- vol[1] = copy; // row number
- id = pMC->CurrentVolOff(1,0,copy);
- vol[0] = copy; // sector number (S-sector)
+ vol[1] = copy-1; // row number
+ id = gMC->CurrentVolOffID(1,copy);
+ vol[0] = copy-1; // sector number (S-sector)
- pMC->TrackPosition(hits);
+ 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);
}
- else if(id == fIdSens4 && pMC->TrackEntering())
+ else if(id == fIdSens4 && gMC->IsTrackEntering())
{
- vol[1] = copy; // row number
- id = pMC->CurrentVolOff(1,0,copy);
- vol[0] = copy+24; // sector number (L-sector)
+ vol[1] = copy-1; // row number
+ id = gMC->CurrentVolOffID(1,copy);
+ vol[0] = copy+fTPCParam->GetNInnerSector()-1; // sector number (L-sector)
- pMC->TrackPosition(hits);
+ 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);
}
// charged particle is in the sensitive volume
//
- if(pMC->TrackStep() > 0) {
+ if(gMC->TrackStep() > 0) {
- Int_t nel = (Int_t)(((pMC->Edep())-poti)/w_ion) + 1;
+ Int_t nel = (Int_t)(((gMC->Edep())-poti)/w_ion) + 1;
nel=TMath::Min(nel,300); // 300 electrons corresponds to 10 keV
- pMC->TrackPosition(hits);
+ gMC->TrackPosition(pos);
+ hits[0]=pos[0];
+ hits[1]=pos[1];
+ hits[2]=pos[2];
hits[3]=(Float_t)nel;
// Add this hit
// Stemax calculation for the next step
Float_t pp;
- Float_t vect[4];
- pMC->TrackMomentum(vect);
- Float_t ptot = vect[3];
- Float_t beta_gamma = ptot/(pMC->TrackMass());
+ TLorentzVector mom;
+ gMC->TrackMomentum(mom);
+ Float_t ptot=mom.Rho();
+ Float_t beta_gamma = ptot/gMC->TrackMass();
- if(pMC->TrackPid() <= 3 && ptot > 0.002)
+ Int_t pid=gMC->TrackPid();
+ if((pid==kElectron || pid==kPositron || pid==kGamma) && ptot > 0.002)
{
pp = prim*1.58; // electrons above 20 MeV/c are on the plateau!
}
}
Float_t random[1];
- pMC->Rndm(random,1); // good, old GRNDM from Geant3
+ gMC->Rndm(random,1); // good, old GRNDM from Geant3
Double_t rnd = (Double_t)random[0];
- pMC->SetMaxStep(-TMath::Log(rnd)/pp);
+ gMC->SetMaxStep(-TMath::Log(rnd)/pp);
}
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff