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[u/mrichter/AliRoot.git] / TOF / AliTOFv4T0.cxx
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d599d913 1/**************************************************************************
2 * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
3 * *
4 * Author: The ALICE Off-line Project. *
5 * Contributors are mentioned in the code where appropriate. *
6 * *
7 * Permission to use, copy, modify and distribute this software and its *
8 * documentation strictly for non-commercial purposes is hereby granted *
9 * without fee, provided that the above copyright notice appears in all *
10 * copies and that both the copyright notice and this permission notice *
11 * appear in the supporting documentation. The authors make no claims *
12 * about the suitability of this software for any purpose. It is *
13 * provided "as is" without express or implied warranty. *
14 **************************************************************************/
15
16
17///////////////////////////////////////////////////////////////////////////////
18// //
19// Time Of Flight: design of C.Williams
20//
21// This class contains the functions for version 4 of the Time Of Flight //
22// detector. //
23//
24// VERSION WITH 5 MODULES AND TILTED STRIPS
25//
26// FULL COVERAGE VERSION
27//
28// Author:
29// Fabrizio Pierella
30// University of Bologna - Italy
31//
32//
33//Begin_Html
34/*
35<img src="picts/AliTOFv4T0Class.gif">
36*/
37//End_Html
38// //
39///////////////////////////////////////////////////////////////////////////////
40
41#include <iostream.h>
42#include <stdlib.h>
43
44#include "AliTOFv4T0.h"
45#include "TBRIK.h"
46#include "TGeometry.h"
47#include "TNode.h"
48#include <TLorentzVector.h>
49#include "TObject.h"
50#include "AliRun.h"
51#include "AliMC.h"
52#include "AliConst.h"
53
54
55ClassImp(AliTOFv4T0)
56
57//_____________________________________________________________________________
58AliTOFv4T0::AliTOFv4T0()
59{
60 //
61 // Default constructor
62 //
63}
64
65//_____________________________________________________________________________
66AliTOFv4T0::AliTOFv4T0(const char *name, const char *title)
67 : AliTOF(name,title,"tzero")
68{
69 //
70 // Standard constructor
71 //
72 //
73 // Check that FRAME is there otherwise we have no place where to
74 // put TOF
75 AliModule* frame=gAlice->GetModule("FRAME");
76 if(!frame) {
77 Error("Ctor","TOF needs FRAME to be present\n");
78 exit(1);
79 } else
80 if(frame->IsVersion()!=1) {
81 Error("Ctor","FRAME version 1 needed with this version of TOF\n");
82 exit(1);
83 }
84
85}
86
87//____________________________________________________________________________
88
89void AliTOFv4T0::BuildGeometry()
90{
91 //
92 // Build TOF ROOT geometry for the ALICE event display
93 //
94 TNode *node, *top;
95 const int kColorTOF = 27;
96
97 // Find top TNODE
98 top = gAlice->GetGeometry()->GetNode("alice");
99
100 // Position the different copies
101 const Float_t krTof =(fRmax+fRmin)/2;
102 const Float_t khTof = fRmax-fRmin;
103 const Int_t kNTof = fNTof;
104 const Float_t kPi = TMath::Pi();
105 const Float_t kangle = 2*kPi/kNTof;
106 Float_t ang;
107
108 // Define TOF basic volume
109
110 char nodeName0[7], nodeName1[7], nodeName2[7];
111 char nodeName3[7], nodeName4[7], rotMatNum[7];
112
113 new TBRIK("S_TOF_C","TOF box","void",
114 120*0.5,khTof*0.5,fZlenC*0.5);
115 new TBRIK("S_TOF_B","TOF box","void",
116 120*0.5,khTof*0.5,fZlenB*0.5);
117 new TBRIK("S_TOF_A","TOF box","void",
118 120*0.5,khTof*0.5,fZlenA*0.5);
119
120 for (Int_t nodeNum=1;nodeNum<19;nodeNum++){
121
122 if (nodeNum<10) {
123 sprintf(rotMatNum,"rot50%i",nodeNum);
124 sprintf(nodeName0,"FTO00%i",nodeNum);
125 sprintf(nodeName1,"FTO10%i",nodeNum);
126 sprintf(nodeName2,"FTO20%i",nodeNum);
127 sprintf(nodeName3,"FTO30%i",nodeNum);
128 sprintf(nodeName4,"FTO40%i",nodeNum);
129 }
130 if (nodeNum>9) {
131 sprintf(rotMatNum,"rot5%i",nodeNum);
132 sprintf(nodeName0,"FTO0%i",nodeNum);
133 sprintf(nodeName1,"FTO1%i",nodeNum);
134 sprintf(nodeName2,"FTO2%i",nodeNum);
135 sprintf(nodeName3,"FTO3%i",nodeNum);
136 sprintf(nodeName4,"FTO4%i",nodeNum);
137 }
138
139 new TRotMatrix(rotMatNum,rotMatNum,90,-20*nodeNum,90,90-20*nodeNum,0,0);
140 ang = (4.5-nodeNum) * kangle;
141
142 top->cd();
143 node = new TNode(nodeName0,nodeName0,"S_TOF_C",krTof*TMath::Cos(ang),krTof*TMath::Sin(ang),299.15,rotMatNum);
144 node->SetLineColor(kColorTOF);
145 fNodes->Add(node);
146
147 top->cd();
148 node = new TNode(nodeName1,nodeName1,"S_TOF_C",krTof*TMath::Cos(ang),krTof*TMath::Sin(ang),-299.15,rotMatNum);
149 node->SetLineColor(kColorTOF);
150 fNodes->Add(node);
151
152 top->cd();
153 node = new TNode(nodeName2,nodeName2,"S_TOF_B",krTof*TMath::Cos(ang),krTof*TMath::Sin(ang),146.45,rotMatNum);
154 node->SetLineColor(kColorTOF);
155 fNodes->Add(node);
156
157 top->cd();
158 node = new TNode(nodeName3,nodeName3,"S_TOF_B",krTof*TMath::Cos(ang),krTof*TMath::Sin(ang),-146.45,rotMatNum);
159 node->SetLineColor(kColorTOF);
160 fNodes->Add(node);
161
162 top->cd();
163 node = new TNode(nodeName4,nodeName4,"S_TOF_A",krTof*TMath::Cos(ang),krTof*TMath::Sin(ang),0.,rotMatNum);
164 node->SetLineColor(kColorTOF);
165 fNodes->Add(node);
166 } // end loop on nodeNum
167}
168
169
170
171//_____________________________________________________________________________
172void AliTOFv4T0::CreateGeometry()
173{
174 //
175 // Create geometry for Time Of Flight version 0
176 //
177 //Begin_Html
178 /*
179 <img src="picts/AliTOFv4T0.gif">
180 */
181 //End_Html
182 //
183 // Creates common geometry
184 //
185 AliTOF::CreateGeometry();
186}
187
188//_____________________________________________________________________________
189void AliTOFv4T0::TOFpc(Float_t xtof, Float_t ytof, Float_t zlenC,
190 Float_t zlenB, Float_t zlenA, Float_t ztof0)
191{
192 //
193 // Definition of the Time Of Fligh Resistive Plate Chambers
194 // xFLT, yFLT, zFLT - sizes of TOF modules (large)
195
196 Float_t ycoor, zcoor;
197 Float_t par[3];
198 Int_t *idtmed = fIdtmed->GetArray()-499;
199 Int_t idrotm[100];
200 Int_t nrot = 0;
201 Float_t hTof = fRmax-fRmin;
202
203 Float_t radius = fRmin+2.;//cm
204
205 par[0] = xtof * 0.5;
206 par[1] = ytof * 0.5;
207 par[2] = zlenC * 0.5;
208 gMC->Gsvolu("FTOC", "BOX ", idtmed[506], par, 3);
209 par[2] = zlenB * 0.5;
210 gMC->Gsvolu("FTOB", "BOX ", idtmed[506], par, 3);
211 par[2] = zlenA * 0.5;
212 gMC->Gsvolu("FTOA", "BOX ", idtmed[506], par, 3);
213
214
215// Positioning of modules
216
217 Float_t zcor1 = ztof0 - zlenC*0.5;
218 Float_t zcor2 = ztof0 - zlenC - zlenB*0.5;
219 Float_t zcor3 = 0.;
220
221 AliMatrix(idrotm[0], 90., 0., 0., 0., 90,-90.);
222 AliMatrix(idrotm[1], 90.,180., 0., 0., 90, 90.);
223 gMC->Gspos("FTOC", 1, "BTO1", 0, zcor1, 0, idrotm[0], "ONLY");
224 gMC->Gspos("FTOC", 2, "BTO1", 0, -zcor1, 0, idrotm[1], "ONLY");
225 gMC->Gspos("FTOC", 1, "BTO2", 0, zcor1, 0, idrotm[0], "ONLY");
226 gMC->Gspos("FTOC", 2, "BTO2", 0, -zcor1, 0, idrotm[1], "ONLY");
227 gMC->Gspos("FTOC", 1, "BTO3", 0, zcor1, 0, idrotm[0], "ONLY");
228 gMC->Gspos("FTOC", 2, "BTO3", 0, -zcor1, 0, idrotm[1], "ONLY");
229
230 gMC->Gspos("FTOB", 1, "BTO1", 0, zcor2, 0, idrotm[0], "ONLY");
231 gMC->Gspos("FTOB", 2, "BTO1", 0, -zcor2, 0, idrotm[1], "ONLY");
232 gMC->Gspos("FTOB", 1, "BTO2", 0, zcor2, 0, idrotm[0], "ONLY");
233 gMC->Gspos("FTOB", 2, "BTO2", 0, -zcor2, 0, idrotm[1], "ONLY");
234 gMC->Gspos("FTOB", 1, "BTO3", 0, zcor2, 0, idrotm[0], "ONLY");
235 gMC->Gspos("FTOB", 2, "BTO3", 0, -zcor2, 0, idrotm[1], "ONLY");
236
237 gMC->Gspos("FTOA", 0, "BTO1", 0, zcor3, 0, idrotm[0], "ONLY");
238 gMC->Gspos("FTOA", 0, "BTO2", 0, zcor3, 0, idrotm[0], "ONLY");
239 gMC->Gspos("FTOA", 0, "BTO3", 0, zcor3, 0, idrotm[0], "ONLY");
240
241 Float_t db = 0.5;//cm
242 Float_t xFLT, xFST, yFLT, zFLTA, zFLTB, zFLTC;
243
244 xFLT = fStripLn;
245 yFLT = ytof;
246 zFLTA = zlenA;
247 zFLTB = zlenB;
248 zFLTC = zlenC;
249
250 xFST = xFLT-fDeadBndX*2;//cm
251
252// Sizes of MRPC pads
253
254 Float_t yPad = 0.505;//cm
255
256// Large not sensitive volumes with Insensitive Freon
257 par[0] = xFLT*0.5;
258 par[1] = yFLT*0.5;
259
260 if (fDebug) cout << ClassName() <<
261 ": ************************* TOF geometry **************************"<<endl;
262
263 par[2] = (zFLTA *0.5);
264 gMC->Gsvolu("FLTA", "BOX ", idtmed[512], par, 3); // Insensitive Freon
265 gMC->Gspos ("FLTA", 0, "FTOA", 0., 0., 0., 0, "ONLY");
266
267 par[2] = (zFLTB * 0.5);
268 gMC->Gsvolu("FLTB", "BOX ", idtmed[512], par, 3); // Insensitive Freon
269 gMC->Gspos ("FLTB", 0, "FTOB", 0., 0., 0., 0, "ONLY");
270
271 par[2] = (zFLTC * 0.5);
272 gMC->Gsvolu("FLTC", "BOX ", idtmed[512], par, 3); // Insensitive Freon
273 gMC->Gspos ("FLTC", 0, "FTOC", 0., 0., 0., 0, "ONLY");
274
275////////// Layers of Aluminum before and after detector //////////
276////////// Aluminum Box for Modules (2.0 mm thickness) /////////
277////////// lateral walls not simulated
278 par[0] = xFLT*0.5;
279 par[1] = 0.1;//cm
280 ycoor = -yFLT/2 + par[1];
281 par[2] = (zFLTA *0.5);
282 gMC->Gsvolu("FALA", "BOX ", idtmed[508], par, 3); // Alluminium
283 gMC->Gspos ("FALA", 1, "FLTA", 0., ycoor, 0., 0, "ONLY");
284 gMC->Gspos ("FALA", 2, "FLTA", 0.,-ycoor, 0., 0, "ONLY");
285 par[2] = (zFLTB *0.5);
286 gMC->Gsvolu("FALB", "BOX ", idtmed[508], par, 3); // Alluminium
287 gMC->Gspos ("FALB", 1, "FLTB", 0., ycoor, 0., 0, "ONLY");
288 gMC->Gspos ("FALB", 2, "FLTB", 0.,-ycoor, 0., 0, "ONLY");
289 par[2] = (zFLTC *0.5);
290 gMC->Gsvolu("FALC", "BOX ", idtmed[508], par, 3); // Alluminium
291 gMC->Gspos ("FALC", 1, "FLTC", 0., ycoor, 0., 0, "ONLY");
292 gMC->Gspos ("FALC", 2, "FLTC", 0.,-ycoor, 0., 0, "ONLY");
293
294///////////////// Detector itself //////////////////////
295
296 const Float_t kdeadBound = fDeadBndZ; //cm non-sensitive between the pad edge
297 //and the boundary of the strip
298 const Int_t knx = fNpadX; // number of pads along x
299 const Int_t knz = fNpadZ; // number of pads along z
300 const Float_t kspace = fSpace; //cm distance from the front plate of the box
301
302 Float_t zSenStrip = fZpad*fNpadZ;//cm
303 Float_t stripWidth = zSenStrip + 2*kdeadBound;
304
305 par[0] = xFLT*0.5;
306 par[1] = yPad*0.5;
307 par[2] = stripWidth*0.5;
308
309// new description for strip volume -double stack strip-
310// -- all constants are expressed in cm
311// heigth of different layers
312 const Float_t khhony = 1. ; // heigth of HONY Layer
313 const Float_t khpcby = 0.15 ; // heigth of PCB Layer
314 const Float_t khmyly = 0.035 ; // heigth of MYLAR Layer
315 const Float_t khgraphy = 0.02 ; // heigth of GRAPHITE Layer
316 const Float_t khglasseiy = 0.17; // 0.6 Ext. Glass + 1.1 i.e. (Int. Glass/2) (mm)
317 const Float_t khsensmy = 0.11 ; // heigth of Sensitive Freon Mixture
318 const Float_t kwsensmz = 2*3.5 ; // cm
319 const Float_t klsensmx = 48*2.5; // cm
320 const Float_t kwpadz = 3.5; // cm z dimension of the FPAD volume
321 const Float_t klpadx = 2.5; // cm x dimension of the FPAD volume
322
323 // heigth of the FSTR Volume (the strip volume)
324 const Float_t khstripy = 2*khhony+3*khpcby+4*(khmyly+khgraphy+khglasseiy)+2*khsensmy;
325 // width of the FSTR Volume (the strip volume)
326 const Float_t kwstripz = 10.;
327 // length of the FSTR Volume (the strip volume)
328 const Float_t klstripx = 122.;
329
330 Float_t parfp[3]={klstripx*0.5,khstripy*0.5,kwstripz*0.5};
331// coordinates of the strip center in the strip reference frame; used for positioning
332// internal strip volumes
333 Float_t posfp[3]={0.,0.,0.};
334
335
336 // FSTR volume definition and filling this volume with non sensitive Gas Mixture
337 gMC->Gsvolu("FSTR","BOX",idtmed[512],parfp,3);
338 //-- HONY Layer definition
339// parfp[0] = -1;
340 parfp[1] = khhony*0.5;
341// parfp[2] = -1;
342 gMC->Gsvolu("FHON","BOX",idtmed[503],parfp,3);
343 // positioning 2 HONY Layers on FSTR volume
344
345 posfp[1]=-khstripy*0.5+parfp[1];
346 gMC->Gspos("FHON",1,"FSTR",0., posfp[1],0.,0,"ONLY");
347 gMC->Gspos("FHON",2,"FSTR",0.,-posfp[1],0.,0,"ONLY");
348
349 //-- PCB Layer definition
350 parfp[1] = khpcby*0.5;
351 gMC->Gsvolu("FPCB","BOX",idtmed[504],parfp,3);
352 // positioning 2 PCB Layers on FSTR volume
353 posfp[1]=-khstripy*0.5+khhony+parfp[1];
354 gMC->Gspos("FPCB",1,"FSTR",0., posfp[1],0.,0,"ONLY");
355 gMC->Gspos("FPCB",2,"FSTR",0.,-posfp[1],0.,0,"ONLY");
356 // positioning the central PCB layer
357 gMC->Gspos("FPCB",3,"FSTR",0.,0.,0.,0,"ONLY");
358
359
360
361 //-- MYLAR Layer definition
362 parfp[1] = khmyly*0.5;
363 gMC->Gsvolu("FMYL","BOX",idtmed[511],parfp,3);
364 // positioning 2 MYLAR Layers on FSTR volume
365 posfp[1] = -khstripy*0.5+khhony+khpcby+parfp[1];
366 gMC->Gspos("FMYL",1,"FSTR",0., posfp[1],0.,0,"ONLY");
367 gMC->Gspos("FMYL",2,"FSTR",0.,-posfp[1],0.,0,"ONLY");
368 // adding further 2 MYLAR Layers on FSTR volume
369 posfp[1] = khpcby*0.5+parfp[1];
370 gMC->Gspos("FMYL",3,"FSTR",0., posfp[1],0.,0,"ONLY");
371 gMC->Gspos("FMYL",4,"FSTR",0.,-posfp[1],0.,0,"ONLY");
372
373
374 //-- Graphite Layer definition
375 parfp[1] = khgraphy*0.5;
376 gMC->Gsvolu("FGRP","BOX",idtmed[502],parfp,3);
377 // positioning 2 Graphite Layers on FSTR volume
378 posfp[1] = -khstripy*0.5+khhony+khpcby+khmyly+parfp[1];
379 gMC->Gspos("FGRP",1,"FSTR",0., posfp[1],0.,0,"ONLY");
380 gMC->Gspos("FGRP",2,"FSTR",0.,-posfp[1],0.,0,"ONLY");
381 // adding further 2 Graphite Layers on FSTR volume
382 posfp[1] = khpcby*0.5+khmyly+parfp[1];
383 gMC->Gspos("FGRP",3,"FSTR",0., posfp[1],0.,0,"ONLY");
384 gMC->Gspos("FGRP",4,"FSTR",0.,-posfp[1],0.,0,"ONLY");
385
386
387 //-- Glass (EXT. +Semi INT.) Layer definition
388 parfp[1] = khglasseiy*0.5;
389 gMC->Gsvolu("FGLA","BOX",idtmed[514],parfp,3);
390 // positioning 2 Glass Layers on FSTR volume
391 posfp[1] = -khstripy*0.5+khhony+khpcby+khmyly+khgraphy+parfp[1];
392 gMC->Gspos("FGLA",1,"FSTR",0., posfp[1],0.,0,"ONLY");
393 gMC->Gspos("FGLA",2,"FSTR",0.,-posfp[1],0.,0,"ONLY");
394 // adding further 2 Glass Layers on FSTR volume
395 posfp[1] = khpcby*0.5+khmyly+khgraphy+parfp[1];
396 gMC->Gspos("FGLA",3,"FSTR",0., posfp[1],0.,0,"ONLY");
397 gMC->Gspos("FGLA",4,"FSTR",0.,-posfp[1],0.,0,"ONLY");
398
399
400 //-- Sensitive Mixture Layer definition
401 parfp[0] = klsensmx*0.5;
402 parfp[1] = khsensmy*0.5;
403 parfp[2] = kwsensmz*0.5;
404 gMC->Gsvolu("FSEN","BOX",idtmed[513],parfp,3);
405 gMC->Gsvolu("FNSE","BOX",idtmed[512],parfp,3);
406 // positioning 2 gas Layers on FSTR volume
407 // the upper is insensitive freon
408 // while the remaining is sensitive
409 posfp[1] = khpcby*0.5+khmyly+khgraphy+khglasseiy+parfp[1];
410 gMC->Gspos("FNSE",0,"FSTR", 0., posfp[1],0.,0,"ONLY");
411 gMC->Gspos("FSEN",0,"FSTR", 0.,-posfp[1],0.,0,"ONLY");
412
413 // dividing FSEN along z in knz=2 and along x in knx=48
414 gMC->Gsdvn("FSEZ","FSEN",knz,3);
415 gMC->Gsdvn("FSEX","FSEZ",knx,1);
416
417 // FPAD volume definition
418 parfp[0] = klpadx*0.5;
419 parfp[1] = khsensmy*0.5;
420 parfp[2] = kwpadz*0.5;
421 gMC->Gsvolu("FPAD","BOX",idtmed[513],parfp,3);
422 // positioning the FPAD volumes on previous divisions
423 gMC->Gspos("FPAD",0,"FSEX",0.,0.,0.,0,"ONLY");
424
425//// Positioning the Strips (FSTR) in the FLT volumes /////
426
427 // Plate A (Central)
428
429 Float_t t = zFLTC+zFLTB+zFLTA*0.5+ 2*db;//Half Width of Barrel
430
431 Float_t gap = fGapA; //cm distance between the strip axis
432 Float_t zpos = 0;
433 Float_t ang = 0;
434 Int_t i=1,j=1;
435 nrot = 0;
436 zcoor = 0;
437 ycoor = -14.5 + kspace ; //2 cm over front plate
438
439 AliMatrix (idrotm[0], 90., 0.,90.,90.,0., 90.);
440 gMC->Gspos("FSTR",j,"FLTA",0.,ycoor, 0.,idrotm[0],"ONLY");
441 if(fDebug) {
442 printf("%s: %f, St. %2i, Pl.3 ",ClassName(),ang*kRaddeg,i);
443 printf("y = %f, z = %f, zpos = %f \n",ycoor,zcoor,zpos);
444 }
445 zcoor -= zSenStrip;
446 j++;
447 Int_t upDown = -1; // upDown=-1 -> Upper strip
448 // upDown=+1 -> Lower strip
449 do{
450 ang = atan(zcoor/radius);
451 ang *= kRaddeg;
452 AliMatrix (idrotm[nrot], 90., 0.,90.-ang,90.,-ang, 90.);
453 AliMatrix (idrotm[nrot+1],90.,180.,90.+ang,90., ang, 90.);
454 ang /= kRaddeg;
455 ycoor = -14.5+ kspace; //2 cm over front plate
456 ycoor += (1-(upDown+1)/2)*gap;
457 gMC->Gspos("FSTR",j ,"FLTA",0.,ycoor, zcoor,idrotm[nrot], "ONLY");
458 gMC->Gspos("FSTR",j+1,"FLTA",0.,ycoor,-zcoor,idrotm[nrot+1],"ONLY");
459 if(fDebug) {
460 printf("%s: %f, St. %2i, Pl.3 ",ClassName(),ang*kRaddeg,i);
461 printf("y = %f, z = %f, zpos = %f \n",ycoor,zcoor,zpos);
462 }
463 j += 2;
464 upDown*= -1; // Alternate strips
465 zcoor = zcoor-(zSenStrip/2)/TMath::Cos(ang)-
466 upDown*gap*TMath::Tan(ang)-
467 (zSenStrip/2)/TMath::Cos(ang);
468 } while (zcoor-(stripWidth/2)*TMath::Cos(ang)>-t+zFLTC+zFLTB+db*2);
469
470 zcoor = zcoor+(zSenStrip/2)/TMath::Cos(ang)+
471 upDown*gap*TMath::Tan(ang)+
472 (zSenStrip/2)/TMath::Cos(ang);
473
474 gap = fGapB;
475 zcoor = zcoor-(zSenStrip/2)/TMath::Cos(ang)-
476 upDown*gap*TMath::Tan(ang)-
477 (zSenStrip/2)/TMath::Cos(ang);
478
479 ang = atan(zcoor/radius);
480 ang *= kRaddeg;
481 AliMatrix (idrotm[nrot], 90., 0.,90.-ang,90.,-ang, 90.);
482 AliMatrix (idrotm[nrot+1],90.,180.,90.+ang,90., ang, 90.);
483 ang /= kRaddeg;
484
485 ycoor = -14.5+ kspace; //2 cm over front plate
486 ycoor += (1-(upDown+1)/2)*gap;
487 gMC->Gspos("FSTR",j ,"FLTA",0.,ycoor, zcoor,idrotm[nrot], "ONLY");
488 gMC->Gspos("FSTR",j+1,"FLTA",0.,ycoor,-zcoor,idrotm[nrot+1],"ONLY");
489 if(fDebug) {
490 printf("%s: %f, St. %2i, Pl.3 ",ClassName(),ang*kRaddeg,i);
491 printf("y = %f, z = %f, zpos = %f \n",ycoor,zcoor,zpos);
492 }
493 ycoor = -hTof/2.+ kspace;//2 cm over front plate
494
495 // Plate B
496
497 nrot = 0;
498 i=1;
499 upDown = 1;
500 Float_t deadRegion = 1.0;//cm
501
502 zpos = zcoor - (zSenStrip/2)/TMath::Cos(ang)-
503 upDown*gap*TMath::Tan(ang)-
504 (zSenStrip/2)/TMath::Cos(ang)-
505 deadRegion/TMath::Cos(ang);
506
507 ang = atan(zpos/radius);
508 ang *= kRaddeg;
509 AliMatrix (idrotm[nrot], 90., 0., 90.-ang,90.,ang, 270.);
510 ang /= kRaddeg;
511 ycoor = -hTof*0.5+ kspace ; //2 cm over front plate
512 ycoor += (1-(upDown+1)/2)*gap;
513 zcoor = zpos+(zFLTA*0.5+zFLTB*0.5+db); // Moves to the system of the modulus FLTB
514 gMC->Gspos("FSTR",i, "FLTB", 0., ycoor, zcoor,idrotm[nrot], "ONLY");
515 if(fDebug) {
516 printf("%s: %f, St. %2i, Pl.4 ",ClassName(),ang*kRaddeg,i);
517 printf("y = %f, z = %f, zpos = %f \n",ycoor,zcoor,zpos);
518 }
519 i++;
520 upDown*=-1;
521
522 do {
523 zpos = zpos - (zSenStrip/2)/TMath::Cos(ang)-
524 upDown*gap*TMath::Tan(ang)-
525 (zSenStrip/2)/TMath::Cos(ang);
526 ang = atan(zpos/radius);
527 ang *= kRaddeg;
528 AliMatrix (idrotm[nrot], 90., 0., 90.-ang,90.,ang, 270.);
529 ang /= kRaddeg;
530 ycoor = -hTof*0.5+ kspace ; //2 cm over front plate
531 ycoor += (1-(upDown+1)/2)*gap;
532 zcoor = zpos+(zFLTA*0.5+zFLTB*0.5+db); // Moves to the system of the modulus FLTB
533 gMC->Gspos("FSTR",i, "FLTB", 0., ycoor, zcoor,idrotm[nrot], "ONLY");
534 if(fDebug) {
535 printf("%s: %f, St. %2i, Pl.4 ",ClassName(),ang*kRaddeg,i);
536 printf("y = %f, z = %f, zpos = %f \n",ycoor,zcoor,zpos);
537 }
538 upDown*=-1;
539 i++;
540 } while (TMath::Abs(ang*kRaddeg)<22.5);
541 //till we reach a tilting angle of 22.5 degrees
542
543 ycoor = -hTof*0.5+ kspace ; //2 cm over front plate
544 zpos = zpos - zSenStrip/TMath::Cos(ang);
545
546 do {
547 ang = atan(zpos/radius);
548 ang *= kRaddeg;
549 AliMatrix (idrotm[nrot], 90., 0., 90.-ang,90.,ang, 270.);
550 ang /= kRaddeg;
551 zcoor = zpos+(zFLTB/2+zFLTA/2+db);
552 gMC->Gspos("FSTR",i, "FLTB", 0., ycoor, zcoor,idrotm[nrot], "ONLY");
553 zpos = zpos - zSenStrip/TMath::Cos(ang);
554 if(fDebug) {
555 printf("%s: %f, St. %2i, Pl.4 ",ClassName(),ang*kRaddeg,i);
556 printf("y = %f, z = %f, zpos = %f \n",ycoor,zcoor,zpos);
557 }
558 i++;
559
560 } while (zpos-stripWidth*0.5/TMath::Cos(ang)>-t+zFLTC+db);
561
562 // Plate C
563
564 zpos = zpos + zSenStrip/TMath::Cos(ang);
565
566 zpos = zpos - (zSenStrip/2)/TMath::Cos(ang)+
567 gap*TMath::Tan(ang)-
568 (zSenStrip/2)/TMath::Cos(ang);
569
570 nrot = 0;
571 i=0;
572 ycoor= -hTof*0.5+kspace+gap;
573
574 do {
575 i++;
576 ang = atan(zpos/radius);
577 ang *= kRaddeg;
578 AliMatrix (idrotm[nrot], 90., 0., 90.-ang,90.,ang, 270.);
579 ang /= kRaddeg;
580 zcoor = zpos+(zFLTC*0.5+zFLTB+zFLTA*0.5+db*2);
581 gMC->Gspos("FSTR",i, "FLTC", 0., ycoor, zcoor,idrotm[nrot], "ONLY");
582 if(fDebug) {
583 printf("%s: %f, St. %2i, Pl.5 ",ClassName(),ang*kRaddeg,i);
584 printf("y = %f, z = %f, zpos = %f \n",ycoor,zcoor,zpos);
585 }
586 zpos = zpos - zSenStrip/TMath::Cos(ang);
587 } while (zpos-stripWidth*TMath::Cos(ang)*0.5>-t);
588
589
590////////// Layers after strips /////////////////
591// honeycomb (Polyethilene) Layer after (1.2cm)
592
593 Float_t overSpace = fOverSpc;//cm
594
595 par[0] = xFLT*0.5;
596 par[1] = 0.6;
597 par[2] = (zFLTA *0.5);
598 ycoor = -yFLT/2 + overSpace + par[1];
599 gMC->Gsvolu("FPEA", "BOX ", idtmed[503], par, 3); // Hony
600 gMC->Gspos ("FPEA", 0, "FLTA", 0., ycoor, 0., 0, "ONLY");
601 par[2] = (zFLTB *0.5);
602 gMC->Gsvolu("FPEB", "BOX ", idtmed[503], par, 3); // Hony
603 gMC->Gspos ("FPEB", 0, "FLTB", 0., ycoor, 0., 0, "ONLY");
604 par[2] = (zFLTC *0.5);
605 gMC->Gsvolu("FPEC", "BOX ", idtmed[503], par, 3); // Hony
606 gMC->Gspos ("FPEC", 0, "FLTC", 0., ycoor, 0., 0, "ONLY");
607
608// Electronics (Cu) after
609 ycoor += par[1];
610 par[0] = xFLT*0.5;
611 par[1] = 1.43*0.05*0.5; // 5% of X0
612 par[2] = (zFLTA *0.5);
613 ycoor += par[1];
614 gMC->Gsvolu("FECA", "BOX ", idtmed[501], par, 3); // Cu
615 gMC->Gspos ("FECA", 0, "FLTA", 0., ycoor, 0., 0, "ONLY");
616 par[2] = (zFLTB *0.5);
617 gMC->Gsvolu("FECB", "BOX ", idtmed[501], par, 3); // Cu
618 gMC->Gspos ("FECB", 0, "FLTB", 0., ycoor, 0., 0, "ONLY");
619 par[2] = (zFLTC *0.5);
620 gMC->Gsvolu("FECC", "BOX ", idtmed[501], par, 3); // Cu
621 gMC->Gspos ("FECC", 0, "FLTC", 0., ycoor, 0., 0, "ONLY");
622
623// cooling WAter after
624 ycoor += par[1];
625 par[0] = xFLT*0.5;
626 par[1] = 36.1*0.02*0.5; // 2% of X0
627 par[2] = (zFLTA *0.5);
628 ycoor += par[1];
629 gMC->Gsvolu("FWAA", "BOX ", idtmed[515], par, 3); // Water
630 gMC->Gspos ("FWAA", 0, "FLTA", 0., ycoor, 0., 0, "ONLY");
631 par[2] = (zFLTB *0.5);
632 gMC->Gsvolu("FWAB", "BOX ", idtmed[515], par, 3); // Water
633 gMC->Gspos ("FWAB", 0, "FLTB", 0., ycoor, 0., 0, "ONLY");
634 par[2] = (zFLTC *0.5);
635 gMC->Gsvolu("FWAC", "BOX ", idtmed[515], par, 3); // Water
636 gMC->Gspos ("FWAC", 0, "FLTC", 0., ycoor, 0., 0, "ONLY");
637
638// frame of Air
639 ycoor += par[1];
640 par[0] = xFLT*0.5;
641 par[1] = (yFLT/2-ycoor-0.2)*0.5; // Aluminum layer considered (0.2 cm)
642 par[2] = (zFLTA *0.5);
643 ycoor += par[1];
644 gMC->Gsvolu("FAIA", "BOX ", idtmed[500], par, 3); // Air
645 gMC->Gspos ("FAIA", 0, "FLTA", 0., ycoor, 0., 0, "ONLY");
646 par[2] = (zFLTB *0.5);
647 gMC->Gsvolu("FAIB", "BOX ", idtmed[500], par, 3); // Air
648 gMC->Gspos ("FAIB", 0, "FLTB", 0., ycoor, 0., 0, "ONLY");
649 par[2] = (zFLTC *0.5);
650 gMC->Gsvolu("FAIC", "BOX ", idtmed[500], par, 3); // Air
651 gMC->Gspos ("FAIC", 0, "FLTC", 0., ycoor, 0., 0, "ONLY");
652/* fp
653//Back Plate honycomb (2cm)
654 par[0] = -1;
655 par[1] = 2 *0.5;
656 par[2] = -1;
657 ycoor = yFLT/2 - par[1];
658 gMC->Gsvolu("FBPA", "BOX ", idtmed[503], par, 3); // Hony
659 gMC->Gspos ("FBPA", 0, "FLTA", 0., ycoor, 0., 0, "ONLY");
660 gMC->Gsvolu("FBPB", "BOX ", idtmed[503], par, 3); // Hony
661 gMC->Gspos ("FBPB", 0, "FLTB", 0., ycoor, 0., 0, "ONLY");
662 gMC->Gsvolu("FBPC", "BOX ", idtmed[503], par, 3); // Hony
663 gMC->Gspos ("FBPC", 0, "FLTC", 0., ycoor, 0., 0, "ONLY");
664fp */
665}
666
667//_____________________________________________________________________________
668void AliTOFv4T0::DrawModule() const
669{
670 //
671 // Draw a shaded view of the Time Of Flight version 4
672 //
673 // Set everything unseen
674 gMC->Gsatt("*", "seen", -1);
675 //
676 // Set ALIC mother transparent
677 gMC->Gsatt("ALIC","SEEN",0);
678 //
679 // Set the volumes visible
680 gMC->Gsatt("ALIC","SEEN",0);
681
682 gMC->Gsatt("FTOA","SEEN",1);
683 gMC->Gsatt("FTOB","SEEN",1);
684 gMC->Gsatt("FTOC","SEEN",1);
685 gMC->Gsatt("FLTA","SEEN",1);
686 gMC->Gsatt("FLTB","SEEN",1);
687 gMC->Gsatt("FLTC","SEEN",1);
688 gMC->Gsatt("FPLA","SEEN",1);
689 gMC->Gsatt("FPLB","SEEN",1);
690 gMC->Gsatt("FPLC","SEEN",1);
691 gMC->Gsatt("FSTR","SEEN",1);
692 gMC->Gsatt("FPEA","SEEN",1);
693 gMC->Gsatt("FPEB","SEEN",1);
694 gMC->Gsatt("FPEC","SEEN",1);
695
696 gMC->Gsatt("FLZ1","SEEN",0);
697 gMC->Gsatt("FLZ2","SEEN",0);
698 gMC->Gsatt("FLZ3","SEEN",0);
699 gMC->Gsatt("FLX1","SEEN",0);
700 gMC->Gsatt("FLX2","SEEN",0);
701 gMC->Gsatt("FLX3","SEEN",0);
702 gMC->Gsatt("FPAD","SEEN",0);
703
704 gMC->Gdopt("hide", "on");
705 gMC->Gdopt("shad", "on");
706 gMC->Gsatt("*", "fill", 7);
707 gMC->SetClipBox(".");
708 gMC->SetClipBox("*", 0, 1000, -1000, 1000, -1000, 1000);
709 gMC->DefaultRange();
710 gMC->Gdraw("alic", 40, 30, 0, 12, 9.5, .02, .02);
711 gMC->Gdhead(1111, "Time Of Flight");
712 gMC->Gdman(18, 4, "MAN");
713 gMC->Gdopt("hide","off");
714}
715//_____________________________________________________________________________
716void AliTOFv4T0::DrawDetectorModules()
717{
718//
719// Draw a shaded view of the TOF detector version 4
720//
721
722 AliMC* pMC = AliMC::GetMC();
723
724//Set ALIC mother transparent
725 pMC->Gsatt("ALIC","SEEN",0);
726
727//
728//Set volumes visible
729//
730//=====> Level 1
731 // Level 1 for TOF volumes
732 gMC->Gsatt("B077","seen",0);
733
734
735//==========> Level 2
736 // Level 2
737 gMC->Gsatt("B076","seen",-1); // all B076 sub-levels skipped -
738 gMC->Gsatt("B071","seen",0);
739 gMC->Gsatt("B074","seen",0);
740 gMC->Gsatt("B075","seen",0);
741 gMC->Gsatt("B080","seen",0); // B080 does not has sub-level
742
743
744 // Level 2 of B071
745 gMC->Gsatt("B063","seen",-1); // all B063 sub-levels skipped -
746 gMC->Gsatt("B065","seen",-1); // all B065 sub-levels skipped -
747 gMC->Gsatt("B067","seen",-1); // all B067 sub-levels skipped -
748 gMC->Gsatt("B069","seen",-1); // all B069 sub-levels skipped -
749 gMC->Gsatt("B056","seen",0); // B056 does not has sub-levels -
750 gMC->Gsatt("B059","seen",-1); // all B059 sub-levels skipped -
751 gMC->Gsatt("B072","seen",-1); // all B072 sub-levels skipped -
752 gMC->Gsatt("BTR1","seen",0); // BTR1 do not have sub-levels -
753 gMC->Gsatt("BTO1","seen",0);
754
755
756 // Level 2 of B074
757 gMC->Gsatt("BTR2","seen",0); // BTR2 does not has sub-levels -
758 gMC->Gsatt("BTO2","seen",0);
759
760 // Level 2 of B075
761 gMC->Gsatt("BTR3","seen",0); // BTR3 do not have sub-levels -
762 gMC->Gsatt("BTO3","seen",0);
763
764// ==================> Level 3
765 // Level 3 of B071 / Level 2 of BTO1
766 gMC->Gsatt("FTOC","seen",-2);
767 gMC->Gsatt("FTOB","seen",-2);
768 gMC->Gsatt("FTOA","seen",-2);
769
770 // Level 3 of B074 / Level 2 of BTO2
771 // -> cfr previous settings
772
773 // Level 3 of B075 / Level 2 of BTO3
774 // -> cfr previous settings
775
776 gMC->Gdopt("hide","on");
777 gMC->Gdopt("shad","on");
778 gMC->Gsatt("*", "fill", 5);
779 gMC->SetClipBox(".");
780 gMC->SetClipBox("*", 0, 1000, 0, 1000, 0, 1000);
781 gMC->DefaultRange();
782 gMC->Gdraw("alic", 45, 40, 0, 10, 10, .015, .015);
783 gMC->Gdhead(1111,"TOF detector V1");
784 gMC->Gdman(18, 4, "MAN");
785 gMC->Gdopt("hide","off");
786}
787
788//_____________________________________________________________________________
789void AliTOFv4T0::DrawDetectorStrips()
790{
791 //
792 // Draw a shaded view of the TOF strips for version 4
793 //
794
795 AliMC* pMC = AliMC::GetMC();
796
797 //Set ALIC mother transparent
798 pMC->Gsatt("ALIC","SEEN",0);
799
800 //
801 //Set volumes visible
802 //=====> Level 1
803 // Level 1 for TOF volumes
804 gMC->Gsatt("B077","seen",0);
805
806 //==========> Level 2
807 // Level 2
808 gMC->Gsatt("B076","seen",-1); // all B076 sub-levels skipped -
809 gMC->Gsatt("B071","seen",0);
810 gMC->Gsatt("B074","seen",0);
811 gMC->Gsatt("B075","seen",0);
812 gMC->Gsatt("B080","seen",0); // B080 does not has sub-level
813
814 // Level 2 of B071
815 gMC->Gsatt("B063","seen",-1); // all B063 sub-levels skipped -
816 gMC->Gsatt("B065","seen",-1); // all B065 sub-levels skipped -
817 gMC->Gsatt("B067","seen",-1); // all B067 sub-levels skipped -
818 gMC->Gsatt("B069","seen",-1); // all B069 sub-levels skipped -
819 gMC->Gsatt("B056","seen",0); // B056 does not has sub-levels -
820 gMC->Gsatt("B059","seen",-1); // all B059 sub-levels skipped -
821 gMC->Gsatt("B072","seen",-1); // all B072 sub-levels skipped -
822 gMC->Gsatt("BTR1","seen",0); // BTR1 do not have sub-levels -
823 gMC->Gsatt("BTO1","seen",0);
824
825 // ==================> Level 3
826 // Level 3 of B071 / Level 2 of BTO1
827 gMC->Gsatt("FTOC","seen",0);
828 gMC->Gsatt("FTOB","seen",0);
829 gMC->Gsatt("FTOA","seen",0);
830
831 // Level 3 of B074 / Level 2 of BTO2
832 // -> cfr previous settings
833
834 // Level 3 of B075 / Level 2 of BTO3
835 // -> cfr previous settings
836
837
838 // ==========================> Level 4
839 // Level 4 of B071 / Level 3 of BTO1 / Level 2 of FTOC
840 gMC->Gsatt("FLTC","seen",0);
841 // Level 4 of B071 / Level 3 of BTO1 / Level 2 of FTOB
842 gMC->Gsatt("FLTB","seen",0);
843 // Level 4 of B071 / Level 3 of BTO1 / Level 2 of FTOA
844 gMC->Gsatt("FLTA","seen",0);
845
846 // Level 4 of B074 / Level 3 of BTO2 / Level 2 of FTOC
847 // -> cfr previous settings
848 // Level 4 of B074 / Level 3 of BTO2 / Level 2 of FTOB
849 // -> cfr previous settings
850
851 // Level 4 of B075 / Level 3 of BTO3 / Level 2 of FTOC
852 // -> cfr previous settings
853
854 //======================================> Level 5
855 // Level 5 of B071 / Level 4 of BTO1 / Level 3 of FTOC / Level 2 of FLTC
856 gMC->Gsatt("FALC","seen",0); // no children for FALC
857 gMC->Gsatt("FSTR","seen",-2);
858 gMC->Gsatt("FPEC","seen",0); // no children for FPEC
859 gMC->Gsatt("FECC","seen",0); // no children for FECC
860 gMC->Gsatt("FWAC","seen",0); // no children for FWAC
861 gMC->Gsatt("FAIC","seen",0); // no children for FAIC
862
863 // Level 5 of B071 / Level 4 of BTO1 / Level 3 of FTOB / Level 2 of FLTB
864 gMC->Gsatt("FALB","seen",0); // no children for FALB
865 //--> gMC->Gsatt("FSTR","seen",-2);
866
867
868 // -> cfr previous settings
869 gMC->Gsatt("FPEB","seen",0); // no children for FPEB
870 gMC->Gsatt("FECB","seen",0); // no children for FECB
871 gMC->Gsatt("FWAB","seen",0); // no children for FWAB
872 gMC->Gsatt("FAIB","seen",0); // no children for FAIB
873
874 // Level 5 of B071 / Level 4 of BTO1 / Level 3 of FTOA / Level 2 of FLTA
875 gMC->Gsatt("FALA","seen",0); // no children for FALB
876 //--> gMC->Gsatt("FSTR","seen",-2);
877 // -> cfr previous settings
878 gMC->Gsatt("FPEA","seen",0); // no children for FPEA
879 gMC->Gsatt("FECA","seen",0); // no children for FECA
880 gMC->Gsatt("FWAA","seen",0); // no children for FWAA
881 gMC->Gsatt("FAIA","seen",0); // no children for FAIA
882
883 // Level 2 of B074
884 gMC->Gsatt("BTR2","seen",0); // BTR2 does not has sub-levels -
885 gMC->Gsatt("BTO2","seen",0);
886
887 // Level 2 of B075
888 gMC->Gsatt("BTR3","seen",0); // BTR3 do not have sub-levels -
889 gMC->Gsatt("BTO3","seen",0);
890
891 // for others Level 5, cfr. previous settings
892
893 gMC->Gdopt("hide","on");
894 gMC->Gdopt("shad","on");
895 gMC->Gsatt("*", "fill", 5);
896 gMC->SetClipBox(".");
897 gMC->SetClipBox("*", 0, 1000, 0, 1000, 0, 1000);
898 gMC->DefaultRange();
899 gMC->Gdraw("alic", 45, 40, 0, 10, 10, .015, .015);
900 gMC->Gdhead(1111,"TOF Strips V1");
901 gMC->Gdman(18, 4, "MAN");
902 gMC->Gdopt("hide","off");
903}
904
905//_____________________________________________________________________________
906void AliTOFv4T0::CreateMaterials()
907{
908 //
909 // Define materials for the Time Of Flight
910 //
911 AliTOF::CreateMaterials();
912}
913
914//_____________________________________________________________________________
915void AliTOFv4T0::Init()
916{
917 //
918 // Initialise the detector after the geometry has been defined
919 //
920 if(fDebug) {
921 printf("%s: **************************************"
922 " TOF "
923 "**************************************\n",ClassName());
924 printf("\n%s: Version 4 of TOF initialing, "
925 "symmetric TOF - Full Coverage version\n",ClassName());
926 }
927
928 AliTOF::Init();
929
930 fIdFTOA = gMC->VolId("FTOA");
931 fIdFTOB = gMC->VolId("FTOB");
932 fIdFTOC = gMC->VolId("FTOC");
933 fIdFLTA = gMC->VolId("FLTA");
934 fIdFLTB = gMC->VolId("FLTB");
935 fIdFLTC = gMC->VolId("FLTC");
936
937 if(fDebug) {
938 printf("%s: **************************************"
939 " TOF "
940 "**************************************\n",ClassName());
941 }
942}
943
944//_____________________________________________________________________________
945void AliTOFv4T0::StepManager()
946{
947 //
948 // Procedure called at each step in the Time Of Flight
949 //
950 TLorentzVector mom, pos;
951 Float_t xm[3],pm[3],xpad[3],ppad[3];
952 Float_t hits[14],phi,phid,z;
953 Int_t vol[5];
954 Int_t sector, plate, padx, padz, strip;
955 Int_t copy, padzid, padxid, stripid, i;
956 Int_t *idtmed = fIdtmed->GetArray()-499;
957 Float_t incidenceAngle;
958
959 if(gMC->GetMedium()==idtmed[513] &&
960 gMC->IsTrackEntering() && gMC->TrackCharge()
961 && gMC->CurrentVolID(copy)==fIdSens)
962 {
963 // getting information about hit volumes
964
965 padzid=gMC->CurrentVolOffID(2,copy);
966 padz=copy;
967
968 padxid=gMC->CurrentVolOffID(1,copy);
969 padx=copy;
970
971 stripid=gMC->CurrentVolOffID(4,copy);
972 strip=copy;
973
974 gMC->TrackPosition(pos);
975 gMC->TrackMomentum(mom);
976
977// Double_t NormPos=1./pos.Rho();
978 Double_t normMom=1./mom.Rho();
979
980// getting the cohordinates in pad ref system
981 xm[0] = (Float_t)pos.X();
982 xm[1] = (Float_t)pos.Y();
983 xm[2] = (Float_t)pos.Z();
984
985 pm[0] = (Float_t)mom.X()*normMom;
986 pm[1] = (Float_t)mom.Y()*normMom;
987 pm[2] = (Float_t)mom.Z()*normMom;
988
989 gMC->Gmtod(xm,xpad,1);
990 gMC->Gmtod(pm,ppad,2);
991
992 incidenceAngle = TMath::ACos(ppad[1])*kRaddeg;
993
994 z = pos[2];
995
996 plate = 0;
997 if (TMath::Abs(z) <= fZlenA*0.5) plate = 3;
998 if (z < (fZlenA*0.5+fZlenB) &&
999 z > fZlenA*0.5) plate = 4;
1000 if (z >-(fZlenA*0.5+fZlenB) &&
1001 z < -fZlenA*0.5) plate = 2;
1002 if (z > (fZlenA*0.5+fZlenB)) plate = 5;
1003 if (z <-(fZlenA*0.5+fZlenB)) plate = 1;
1004
1005 phi = pos.Phi();
1006 phid = phi*kRaddeg+180.;
1007 sector = Int_t (phid/20.);
1008 sector++;
1009
1010 for(i=0;i<3;++i) {
1011 hits[i] = pos[i];
1012 hits[i+3] = pm[i];
1013 }
1014
1015 hits[6] = mom.Rho();
1016 hits[7] = pos[3];
1017 hits[8] = xpad[0];
1018 hits[9] = xpad[1];
1019 hits[10]= xpad[2];
1020 hits[11]= incidenceAngle;
1021 hits[12]= gMC->Edep();
1022 hits[13]= gMC->TrackLength();
1023
1024 vol[0]= sector;
1025 vol[1]= plate;
1026 vol[2]= strip;
1027 vol[3]= padx;
1028 vol[4]= padz;
1029
1030 AddT0Hit(gAlice->CurrentTrack(),vol, hits);
1031 }
1032}