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4c039060 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$Log$
2cef3cb2 18Revision 1.14.2.1 2000/05/10 09:37:16 vicinanz
19New version with Holes for PHOS/RICH
20
da39da0c 21Revision 1.14 1999/11/05 22:39:06 fca
22New hits structure
23
2cef3cb2 24Revision 1.13 1999/11/02 11:26:39 fca
25added stdlib.h for exit
26
27Revision 1.12 1999/11/01 20:41:57 fca
826b71ec 28Added protections against using the wrong version of FRAME
29
2cef3cb2 30Revision 1.11 1999/10/22 08:04:14 fca
ab76897d 31Correct improper use of negative parameters
32
2cef3cb2 33Revision 1.10 1999/10/16 19:30:06 fca
d0a635a0 34Corrected Rotation Matrix and CVS log
35
2cef3cb2 36Revision 1.9 1999/10/15 15:35:20 fca
00e5f8d9 37New version for frame1099 with and without holes
38
2cef3cb2 39Revision 1.8 1999/09/29 09:24:33 fca
937fe4a4 40Introduction of the Copyright and cvs Log
41
4c039060 42*/
43
fe4da5cc 44///////////////////////////////////////////////////////////////////////////////
45// //
937fe4a4 46// Time Of Flight: design of C.Williams FCA //
47// This class contains the functions for version 1 of the Time Of Flight //
fe4da5cc 48// detector. //
937fe4a4 49//
50// VERSION WITH 5 MODULES AND TILTED STRIPS
51//
2cef3cb2 52// FULL COVERAGE VERSION
937fe4a4 53//
54// Authors:
2cef3cb2 55//
937fe4a4 56// Alessio Seganti
57// Domenico Vicinanza
58//
59// University of Salerno - Italy
60//
61//
fe4da5cc 62//Begin_Html
63/*
1439f98e 64<img src="picts/AliTOFv0Class.gif">
fe4da5cc 65*/
66//End_Html
67// //
68///////////////////////////////////////////////////////////////////////////////
69
826b71ec 70#include <iostream.h>
ab76897d 71#include <stdlib.h>
72
fe4da5cc 73#include "AliTOFv0.h"
2cef3cb2 74#include "TBRIK.h"
75#include "TNode.h"
76#include "TObject.h"
fe4da5cc 77#include "AliRun.h"
fe4da5cc 78#include "AliConst.h"
3fe3a833 79
fe4da5cc 80ClassImp(AliTOFv0)
81
82//_____________________________________________________________________________
151e057e 83AliTOFv0::AliTOFv0()
fe4da5cc 84{
85 //
86 // Default constructor
87 //
2cef3cb2 88
da39da0c 89 //
90 // Check that FRAME is there otherwise we have no place where to
91 // put TOF
92 AliModule* FRAME=gAlice->GetModule("FRAME");
93 if(!FRAME) {
94 Error("Ctor","TOF needs FRAME to be present\n");
95 exit(1);
2cef3cb2 96 } else
97 if(FRAME->IsVersion()!=1) {
98 Error("Ctor","FRAME version 1 needed with this version of TOF\n");
da39da0c 99 exit(1);
100 }
2cef3cb2 101
da39da0c 102
fe4da5cc 103}
104
2cef3cb2 105//_____________________________________________________________________________
106AliTOFv0::AliTOFv0(const char *name, const char *title)
107 : AliTOF(name,title)
108{
109 //
110 // Standard constructor
111 //
112}
113
114//_____________________________________________________________________________
115void AliTOFv0::BuildGeometry()
116{
117 // Build TOF ROOT geometry for the ALICE event viewver
118 //
119 TNode *Node, *Top;
120 const int kColorTOF = 27;
121
122 // Find top TNODE
123 Top = gAlice->GetGeometry()->GetNode("alice");
124
125 // Position the different copies
126 const Float_t rTof =(fRmax+fRmin)/2;
127 const Float_t hTof = fRmax-fRmin;
128 const Int_t fNTof = 18;
129 const Float_t kPi = TMath::Pi();
130 const Float_t angle = 2*kPi/fNTof;
131 Float_t ang;
132
133 // Define TOF basic volume
134
135 char NodeName0[6], NodeName1[6], NodeName2[6];
136 char NodeName3[6], NodeName4[6], RotMatNum[6];
137
138 new TBRIK("S_TOF_C","TOF box","void",
139 120*0.5,hTof*0.5,fZlenC*0.5);
140 new TBRIK("S_TOF_B","TOF box","void",
141 120*0.5,hTof*0.5,fZlenB*0.5);
142 new TBRIK("S_TOF_A","TOF box","void",
143 120*0.5,hTof*0.5,fZlenA*0.5);
144
145 for (Int_t NodeNum=1;NodeNum<19;NodeNum++){
146
147 if (NodeNum<10) {
148 sprintf(RotMatNum,"rot50%i",NodeNum);
149 sprintf(NodeName0,"FTO00%i",NodeNum);
150 sprintf(NodeName1,"FTO10%i",NodeNum);
151 sprintf(NodeName2,"FTO20%i",NodeNum);
152 sprintf(NodeName3,"FTO30%i",NodeNum);
153 sprintf(NodeName4,"FTO40%i",NodeNum);
154 }
155 if (NodeNum>9) {
156 sprintf(RotMatNum,"rot5%i",NodeNum);
157 sprintf(NodeName0,"FTO0%i",NodeNum);
158 sprintf(NodeName1,"FTO1%i",NodeNum);
159 sprintf(NodeName2,"FTO2%i",NodeNum);
160 sprintf(NodeName3,"FTO3%i",NodeNum);
161 sprintf(NodeName4,"FTO4%i",NodeNum);
162 }
163
164 new TRotMatrix(RotMatNum,RotMatNum,90,-20*NodeNum,90,90-20*NodeNum,0,0);
165 ang = (4.5-NodeNum) * angle;
166
167 Top->cd();
168 Node = new TNode(NodeName0,NodeName0,"S_TOF_C",rTof*TMath::Cos(ang),rTof*TMath::Sin(ang),299.15,RotMatNum);
169 Node->SetLineColor(kColorTOF);
170 fNodes->Add(Node);
171
172 Top->cd();
173 Node = new TNode(NodeName1,NodeName1,"S_TOF_C",rTof*TMath::Cos(ang),rTof*TMath::Sin(ang),-299.15,RotMatNum);
174 Node->SetLineColor(kColorTOF);
175 fNodes->Add(Node);
176
177 Top->cd();
178 Node = new TNode(NodeName2,NodeName2,"S_TOF_B",rTof*TMath::Cos(ang),rTof*TMath::Sin(ang),146.45,RotMatNum);
179 Node->SetLineColor(kColorTOF);
180 fNodes->Add(Node);
181
182 Top->cd();
183 Node = new TNode(NodeName3,NodeName3,"S_TOF_B",rTof*TMath::Cos(ang),rTof*TMath::Sin(ang),-146.45,RotMatNum);
184 Node->SetLineColor(kColorTOF);
185 fNodes->Add(Node);
186
187 Top->cd();
188 Node = new TNode(NodeName4,NodeName4,"S_TOF_A",rTof*TMath::Cos(ang),rTof*TMath::Sin(ang),0.,RotMatNum);
189 Node->SetLineColor(kColorTOF);
190 fNodes->Add(Node);
191 }
192}
193
fe4da5cc 194//_____________________________________________________________________________
195void AliTOFv0::CreateGeometry()
196{
197 //
3fe3a833 198 // Create geometry for Time Of Flight version 0
199 //
fe4da5cc 200 //Begin_Html
201 /*
1439f98e 202 <img src="picts/AliTOFv0.gif">
fe4da5cc 203 */
204 //End_Html
205 //
937fe4a4 206 // Creates common geometry
fe4da5cc 207 //
3fe3a833 208 AliTOF::CreateGeometry();
fe4da5cc 209}
210
211//_____________________________________________________________________________
2cef3cb2 212void AliTOFv0::TOFpc(Float_t xtof, Float_t ytof, Float_t zlenC,
213 Float_t zlenB, Float_t zlenA, Float_t ztof0)
fe4da5cc 214{
215 //
3fe3a833 216 // Definition of the Time Of Fligh Resistive Plate Chambers
937fe4a4 217 // xFLT, yFLT, zFLT - sizes of TOF modules (large)
3fe3a833 218
2cef3cb2 219 Float_t ycoor, zcoor;
3fe3a833 220 Float_t par[10];
2cef3cb2 221 Int_t *idtmed = fIdtmed->GetArray()-499;
937fe4a4 222 Int_t idrotm[100];
223 Int_t nrot = 0;
3fe3a833 224
2cef3cb2 225 Float_t Radius = fRmin+2.;//cm
937fe4a4 226
2cef3cb2 227 par[0] = xtof * 0.5;
228 par[1] = ytof * 0.5;
229 par[2] = zlenC * 0.5;
230 gMC->Gsvolu("FTOC", "BOX ", idtmed[506], par, 3);
231 par[2] = zlenB * 0.5;
232 gMC->Gsvolu("FTOB", "BOX ", idtmed[506], par, 3);
233 par[2] = zlenA * 0.5;
234 gMC->Gsvolu("FTOA", "BOX ", idtmed[506], par, 3);
937fe4a4 235
236
237// Positioning of modules
238
2cef3cb2 239 Float_t zcor1 = ztof0 - zlenC*0.5;
240 Float_t zcor2 = ztof0 - zlenC - zlenB*0.5;
937fe4a4 241 Float_t zcor3 = 0.;
242
243 AliMatrix(idrotm[0], 90., 0., 0., 0., 90, -90.);
244 AliMatrix(idrotm[1], 90., 180., 0., 0., 90, 90.);
2cef3cb2 245 gMC->Gspos("FTOC", 1, "BTO1", 0, zcor1, 0, idrotm[0], "ONLY");
246 gMC->Gspos("FTOC", 2, "BTO1", 0, -zcor1, 0, idrotm[1], "ONLY");
247 gMC->Gspos("FTOC", 1, "BTO2", 0, zcor1, 0, idrotm[0], "ONLY");
248 gMC->Gspos("FTOC", 2, "BTO2", 0, -zcor1, 0, idrotm[1], "ONLY");
249 gMC->Gspos("FTOC", 1, "BTO3", 0, zcor1, 0, idrotm[0], "ONLY");
250 gMC->Gspos("FTOC", 2, "BTO3", 0, -zcor1, 0, idrotm[1], "ONLY");
251
252 gMC->Gspos("FTOB", 1, "BTO1", 0, zcor2, 0, idrotm[0], "ONLY");
253 gMC->Gspos("FTOB", 2, "BTO1", 0, -zcor2, 0, idrotm[1], "ONLY");
254 gMC->Gspos("FTOB", 1, "BTO2", 0, zcor2, 0, idrotm[0], "ONLY");
255 gMC->Gspos("FTOB", 2, "BTO2", 0, -zcor2, 0, idrotm[1], "ONLY");
256 gMC->Gspos("FTOB", 1, "BTO3", 0, zcor2, 0, idrotm[0], "ONLY");
257 gMC->Gspos("FTOB", 2, "BTO3", 0, -zcor2, 0, idrotm[1], "ONLY");
258
259 gMC->Gspos("FTOA", 0, "BTO1", 0, zcor3, 0, idrotm[0], "ONLY");
260 gMC->Gspos("FTOA", 0, "BTO2", 0, zcor3, 0, idrotm[0], "ONLY");
261 gMC->Gspos("FTOA", 0, "BTO3", 0, zcor3, 0, idrotm[0], "ONLY");
262
263 Float_t db = 0.5;//cm
264 Float_t xFLT, yFLT, zFLTA, zFLTB, zFLTC;
265
266 xFLT = 122.0;//cm
937fe4a4 267 yFLT = ytof;
2cef3cb2 268 zFLTA = zlenA - db*0.5;
269 zFLTB = zlenB - db*0.5;
270 zFLTC = zlenC - db*0.5;
271
937fe4a4 272// Sizes of MRPC pads
273
2cef3cb2 274 Float_t yPad = 0.505;//cm
3fe3a833 275
937fe4a4 276// Large not sensitive volumes with CO2
2cef3cb2 277 par[0] = xFLT*0.5;
278 par[1] = yFLT*0.5;
937fe4a4 279
3fe3a833 280 cout <<"************************* TOF geometry **************************"<<endl;
937fe4a4 281
2cef3cb2 282 par[2] = (zFLTA *0.5);
283 gMC->Gsvolu("FLTA", "BOX ", idtmed[506], par, 3); // CO2
284 gMC->Gspos ("FLTA", 0, "FTOA", 0., 0., 0., 0, "ONLY");
937fe4a4 285
2cef3cb2 286 par[2] = (zFLTB * 0.5);
287 gMC->Gsvolu("FLTB", "BOX ", idtmed[506], par, 3); // CO2
288 gMC->Gspos ("FLTB", 0, "FTOB", 0., 0., 0., 0, "ONLY");
937fe4a4 289
2cef3cb2 290 par[2] = (zFLTC * 0.5);
291 gMC->Gsvolu("FLTC", "BOX ", idtmed[506], par, 3); // CO2
292 gMC->Gspos ("FLTC", 0, "FTOC", 0., 0., 0., 0, "ONLY");
937fe4a4 293
3fe3a833 294////////// Layers before detector ////////////////////
937fe4a4 295
2cef3cb2 296// MYlar layer in front 1.0 mm thick at the beginning
3fe3a833 297 par[0] = -1;
2cef3cb2 298 par[1] = 0.1;//cm
3fe3a833 299 par[2] = -1;
937fe4a4 300 ycoor = -yFLT/2 + par[1];
2cef3cb2 301 gMC->Gsvolu("FMYA", "BOX ", idtmed[508], par, 3); // Alluminium
302 gMC->Gspos ("FMYA", 0, "FLTA", 0., ycoor, 0., 0, "ONLY");
303 gMC->Gsvolu("FMYB", "BOX ", idtmed[508], par, 3); // Alluminium
304 gMC->Gspos ("FMYB", 0, "FLTB", 0., ycoor, 0., 0, "ONLY");
305 gMC->Gsvolu("FMYC", "BOX ", idtmed[508], par, 3); // Alluminium
306 gMC->Gspos ("FMYC", 0, "FLTC", 0., ycoor, 0., 0, "ONLY");
307
308// honeycomb (special Polyethilene Layer of 1cm)
3fe3a833 309 ycoor = ycoor + par[1];
310 par[0] = -1;
2cef3cb2 311 par[1] = 0.5;//cm
3fe3a833 312 par[2] = -1;
313 ycoor = ycoor + par[1];
2cef3cb2 314 gMC->Gsvolu("FPLA", "BOX ", idtmed[503], par, 3); // Hony
315 gMC->Gspos ("FPLA", 0, "FLTA", 0., ycoor, 0., 0, "ONLY");
316 gMC->Gsvolu("FPLB", "BOX ", idtmed[503], par, 3); // Hony
317 gMC->Gspos ("FPLB", 0, "FLTB", 0., ycoor, 0., 0, "ONLY");
318 gMC->Gsvolu("FPLC", "BOX ", idtmed[503], par, 3); // Hony
319 gMC->Gspos ("FPLC", 0, "FLTC", 0., ycoor, 0., 0, "ONLY");
937fe4a4 320
3fe3a833 321///////////////// Detector itself //////////////////////
937fe4a4 322
2cef3cb2 323 const Float_t StripWidth = 10.0;//cm
324 const Float_t DeadBound = 1.5;//cm non-sensitive between the pad edge
325 //and the boundary of the strip
326 const Int_t nx = 48; // number of pads along x
327 const Int_t nz = 2; // number of pads along z
328 const Float_t Space= 5.5; //cm distance from the front plate of the box
937fe4a4 329
330 Float_t zSenStrip;
331 zSenStrip = StripWidth-2*DeadBound;//cm
332
826b71ec 333 par[0] = xFLT/2;
937fe4a4 334 par[1] = yPad/2;
335 par[2] = StripWidth/2.;
336
2cef3cb2 337 // glass layer of detector STRip
937fe4a4 338 gMC->Gsvolu("FSTR","BOX",idtmed[514],par,3);
339
2cef3cb2 340 // Non-Sesitive Freon boundaries
341 par[0] = xFLT*0.5;
342 par[1] = 0.110*0.5;//cm
3fe3a833 343 par[2] = -1;
937fe4a4 344 gMC->Gsvolu("FNSF","BOX",idtmed[512],par,3);
2cef3cb2 345 gMC->Gspos ("FNSF",0,"FSTR",0.,0.,0.,0,"ONLY");
346
347 // MYlar for Internal non-sesitive boundaries
348 par[1] = 0.025;//cm
937fe4a4 349 gMC->Gsvolu("FMYI","BOX",idtmed[510],par,3);
2cef3cb2 350 gMC->Gspos ("FMYI",0,"FNSF",0.,0.,0.,0,"ONLY");
937fe4a4 351
2cef3cb2 352 // MYlar eXternal layers
353 par[1] = 0.035*0.5;//cm
354 ycoor = -yPad*0.5+par[1];
937fe4a4 355 gMC->Gsvolu("FMYX","BOX",idtmed[510],par,3);
2cef3cb2 356 gMC->Gspos ("FMYX",1,"FSTR",0.,ycoor,0.,0,"ONLY");
357 gMC->Gspos ("FMYX",2,"FSTR",0.,-ycoor,0.,0,"ONLY");
937fe4a4 358 ycoor += par[1];
359
2cef3cb2 360 // GRaphyte Layers
361 par[1] = 0.003*0.5;
937fe4a4 362 ycoor += par[1];
363 gMC->Gsvolu("FGRL","BOX",idtmed[502],par,3);
2cef3cb2 364 gMC->Gspos ("FGRL",1,"FSTR",0.,ycoor,0.,0,"ONLY");
365 gMC->Gspos ("FGRL",2,"FSTR",0.,-ycoor,0.,0,"ONLY");
937fe4a4 366
2cef3cb2 367 // freon sensitive layer (Chlorine-Fluorine-Carbon)
826b71ec 368 par[0] = -1;
2cef3cb2 369 par[1] = 0.110*0.5;
370 par[2] = zSenStrip*0.5;
937fe4a4 371 gMC->Gsvolu("FCFC","BOX",idtmed[513],par,3);
2cef3cb2 372 gMC->Gspos ("FCFC",0,"FNSF",0.,0.,0.,0,"ONLY");
937fe4a4 373
374 // Pad definition x & z
375 gMC->Gsdvn("FLZ","FCFC", nz, 3);
376 gMC->Gsdvn("FLX","FLZ" , nx, 1);
377
2cef3cb2 378 // MRPC PAD itself
379 par[0] = -1;
380 par[1] = -1;
381 par[2] = -1;
382 gMC->Gsvolu("FPAD", "BOX ", idtmed[513], par, 3);
383 gMC->Gspos ("FPAD", 0, "FLX", 0., 0., 0., 0, "ONLY");
384
937fe4a4 385//// Positioning the Strips (FSTR) in the FLT volumes /////
386
2cef3cb2 387 // Plate A (Central)
388
389 Float_t t = zFLTC+zFLTB+zFLTA*0.5+ 2*db;//Half Width of Barrel
390
391 Float_t Gap = 4.; //cm distance between the strip axis
937fe4a4 392 Float_t zpos = 0;
2cef3cb2 393 Float_t ang = 0;
937fe4a4 394 Float_t last;
937fe4a4 395 Int_t i=1,j=1;
2cef3cb2 396 nrot = 0;
397 zcoor = 0;
398 ycoor = -14.5 + Space ; //2 cm over front plate
399
400 AliMatrix (idrotm[0], 90., 0.,90.,90.,0., 90.);
401 gMC->Gspos("FSTR",j,"FLTA",0.,ycoor, 0.,idrotm[0],"ONLY");
402 zcoor -= zSenStrip;
403
404 j++;
405 Int_t UpDown = -1; // UpDown=-1 -> Upper strip
406 // UpDown=+1 -> Lower strip
937fe4a4 407 do{
2cef3cb2 408 ang = atan(zcoor/Radius);
409 ang *= kRaddeg;
826b71ec 410 AliMatrix (idrotm[nrot], 90., 0.,90.-ang,90.,-ang, 90.);
2cef3cb2 411 AliMatrix (idrotm[nrot+1],90.,180.,90.+ang,90., ang, 90.);
412 ang /= kRaddeg;
937fe4a4 413 ycoor = -14.5+ Space; //2 cm over front plate
414 ycoor += (1-(UpDown+1)/2)*Gap;
2cef3cb2 415 gMC->Gspos("FSTR",j ,"FLTA",0.,ycoor, zcoor,idrotm[nrot], "ONLY");
416 gMC->Gspos("FSTR",j+1,"FLTA",0.,ycoor,-zcoor,idrotm[nrot+1],"ONLY");
417 j += 2;
937fe4a4 418 UpDown*= -1; // Alternate strips
2cef3cb2 419 zcoor = zcoor-(zSenStrip/2)/TMath::Cos(ang)-
420 UpDown*Gap*TMath::Tan(ang)-
421 (zSenStrip/2)/TMath::Cos(ang);
422 } while (zcoor-(StripWidth/2)*TMath::Cos(ang)>-t+zFLTC+zFLTB+db*2);
937fe4a4 423
2cef3cb2 424 zcoor = zcoor+(zSenStrip/2)/TMath::Cos(ang)-
425 UpDown*Gap*TMath::Tan(ang)+
426 (zSenStrip/2)/TMath::Cos(ang);
427
428 Gap = 6.;
429 zcoor = zcoor-(zSenStrip/2)/TMath::Cos(ang)-
430 UpDown*Gap*TMath::Tan(ang)-
431 (zSenStrip/2)/TMath::Cos(ang);
432
433 ang = atan(zcoor/Radius);
434 ang *= kRaddeg;
435 AliMatrix (idrotm[nrot], 90., 0.,90.-ang,90.,-ang, 90.);
436 AliMatrix (idrotm[nrot+1],90.,180.,90.+ang,90., ang, 90.);
437 ang /= kRaddeg;
438
439 ycoor = -14.5+ Space; //2 cm over front plate
440 ycoor += (1-(UpDown+1)/2)*Gap;
441 gMC->Gspos("FSTR",j ,"FLTA",0.,ycoor, zcoor,idrotm[nrot], "ONLY");
442 gMC->Gspos("FSTR",j+1,"FLTA",0.,ycoor,-zcoor,idrotm[nrot+1],"ONLY");
443
444 ycoor = -29./2.+ Space;//2 cm over front plate
445
446 // Plate B
937fe4a4 447
937fe4a4 448 nrot = 0;
449 i=1;
2cef3cb2 450 UpDown *= -1;
451
452 zpos = zcoor - (zSenStrip/2)/TMath::Cos(ang)-
453 UpDown*Gap*TMath::Tan(ang)-
454 (zSenStrip/2)/TMath::Cos(ang)-0.5/TMath::Cos(ang);
455
456 ang = atan(zpos/Radius);
457 ang *= kRaddeg;
458 AliMatrix (idrotm[nrot], 90., 0., 90.-ang,90.,ang, 270.);
459 ang /= kRaddeg;
460 ycoor = -29.*0.5+ Space ; //2 cm over front plate
461 ycoor += (1-(UpDown+1)/2)*Gap;
462 zcoor = zpos+(zFLTA*0.5+zFLTB*0.5+db); // Moves to the system of the modulus FLTB
463 gMC->Gspos("FSTR",i, "FLTB", 0., ycoor, zcoor,idrotm[nrot], "ONLY");
464 i++;
465 UpDown*=-1;
937fe4a4 466
467 do {
2cef3cb2 468 zpos = zpos - (zSenStrip/2)/TMath::Cos(ang)-
469 UpDown*Gap*TMath::Tan(ang)-
470 (zSenStrip/2)/TMath::Cos(ang);
471 ang = atan(zpos/Radius);
472 ang *= kRaddeg;
826b71ec 473 AliMatrix (idrotm[nrot], 90., 0., 90.-ang,90.,ang, 270.);
2cef3cb2 474 ang /= kRaddeg;
475 ycoor = -29.*0.5+ Space ; //2 cm over front plate
937fe4a4 476 ycoor += (1-(UpDown+1)/2)*Gap;
2cef3cb2 477 zcoor = zpos+(zFLTA*0.5+zFLTB*0.5+db); // Moves to the system of the modulus FLTB
478 gMC->Gspos("FSTR",i, "FLTB", 0., ycoor, zcoor,idrotm[nrot], "ONLY");
937fe4a4 479 UpDown*=-1;
2cef3cb2 480 i++;
481 } while (TMath::Abs(ang*kRaddeg)<22.5);//till we reach a tilting angle of 22.5 degrees
937fe4a4 482
2cef3cb2 483 ycoor = -29.*0.5+ Space ; //2 cm over front plate
484
485 do {
937fe4a4 486 i++;
2cef3cb2 487 ang = atan(zpos/Radius);
488 ang *= kRaddeg;
489 AliMatrix (idrotm[nrot], 90., 0., 90.-ang,90.,ang, 270.);
490 ang /= kRaddeg;
491 zcoor = zpos+(zFLTB/2+zFLTA/2+db);
492 gMC->Gspos("FSTR",i, "FLTB", 0., ycoor, zcoor,idrotm[nrot], "ONLY");
937fe4a4 493 zpos = zpos - zSenStrip/TMath::Cos(ang);
494 last = StripWidth*TMath::Cos(ang)/2.;
2cef3cb2 495 } while (zpos>-t+zFLTC+db);
496
497 // Plate C
498
499 zpos = zpos - (zSenStrip/2)/TMath::Cos(ang)-
500 Gap*TMath::Tan(ang)-
501 (zSenStrip/2)/TMath::Cos(ang);
502
503 nrot = 0;
504 i=0;
505 ycoor= -29.*0.5+Space+Gap;
937fe4a4 506
2cef3cb2 507 do {
508 i++;
509 ang = atan(zpos/Radius);
510 ang *= kRaddeg;
511 AliMatrix (idrotm[nrot], 90., 0., 90.-ang,90.,ang, 270.);
512 ang /= kRaddeg;
513 zcoor = zpos+(zFLTC*0.5+zFLTB+zFLTA*0.5+db*2);
514 gMC->Gspos("FSTR",i, "FLTC", 0., ycoor, zcoor,idrotm[nrot], "ONLY");
937fe4a4 515 zpos = zpos - zSenStrip/TMath::Cos(ang);
2cef3cb2 516 last = StripWidth*TMath::Cos(ang)*0.5;
517 } while (zpos>-t+last);
518
937fe4a4 519
520////////// Layers after detector /////////////////
521
2cef3cb2 522// honeycomb (Polyethilene) Layer after (3cm)
937fe4a4 523
2cef3cb2 524 Float_t OverSpace = 15.30;//cm
937fe4a4 525
526 par[0] = -1;
527 par[1] = 0.6;
3fe3a833 528 par[2] = -1;
937fe4a4 529 ycoor = -yFLT/2 + OverSpace + par[1];
2cef3cb2 530 gMC->Gsvolu("FPEA", "BOX ", idtmed[503], par, 3); // Hony
531 gMC->Gspos ("FPEA", 0, "FLTA", 0., ycoor, 0., 0, "ONLY");
532 gMC->Gsvolu("FPEB", "BOX ", idtmed[503], par, 3); // Hony
533 gMC->Gspos ("FPEB", 0, "FLTB", 0., ycoor, 0., 0, "ONLY");
534 gMC->Gsvolu("FPEC", "BOX ", idtmed[503], par, 3); // Hony
535 gMC->Gspos ("FPEC", 0, "FLTC", 0., ycoor, 0., 0, "ONLY");
937fe4a4 536
537// Electronics (Cu) after
538 ycoor += par[1];
3fe3a833 539 par[0] = -1;
2cef3cb2 540 par[1] = 1.43*0.05*0.5; // 5% of X0
3fe3a833 541 par[2] = -1;
937fe4a4 542 ycoor += par[1];
2cef3cb2 543 gMC->Gsvolu("FECA", "BOX ", idtmed[501], par, 3); // Cu
544 gMC->Gspos ("FECA", 0, "FLTA", 0., ycoor, 0., 0, "ONLY");
545 gMC->Gsvolu("FECB", "BOX ", idtmed[501], par, 3); // Cu
546 gMC->Gspos ("FECB", 0, "FLTB", 0., ycoor, 0., 0, "ONLY");
547 gMC->Gsvolu("FECC", "BOX ", idtmed[501], par, 3); // Cu
548 gMC->Gspos ("FECC", 0, "FLTC", 0., ycoor, 0., 0, "ONLY");
549
550// cooling WAter after
937fe4a4 551 ycoor += par[1];
3fe3a833 552 par[0] = -1;
2cef3cb2 553 par[1] = 36.1*0.02*0.5; // 2% of X0
3fe3a833 554 par[2] = -1;
937fe4a4 555 ycoor += par[1];
2cef3cb2 556 gMC->Gsvolu("FWAA", "BOX ", idtmed[515], par, 3); // Water
557 gMC->Gspos ("FWAA", 0, "FLTA", 0., ycoor, 0., 0, "ONLY");
558 gMC->Gsvolu("FWAB", "BOX ", idtmed[515], par, 3); // Water
559 gMC->Gspos ("FWAB", 0, "FLTB", 0., ycoor, 0., 0, "ONLY");
560 gMC->Gsvolu("FWAC", "BOX ", idtmed[515], par, 3); // Water
561 gMC->Gspos ("FWAC", 0, "FLTC", 0., ycoor, 0., 0, "ONLY");
562
563//Back Plate honycomb (2cm)
3fe3a833 564 par[0] = -1;
2cef3cb2 565 par[1] = 2 *0.5;
3fe3a833 566 par[2] = -1;
937fe4a4 567 ycoor = yFLT/2 - par[1];
2cef3cb2 568 gMC->Gsvolu("FBPA", "BOX ", idtmed[503], par, 3); // Hony
569 gMC->Gspos ("FBPA", 0, "FLTA", 0., ycoor, 0., 0, "ONLY");
570 gMC->Gsvolu("FBPB", "BOX ", idtmed[503], par, 3); // Hony
571 gMC->Gspos ("FBPB", 0, "FLTB", 0., ycoor, 0., 0, "ONLY");
572 gMC->Gsvolu("FBPC", "BOX ", idtmed[503], par, 3); // Hony
573 gMC->Gspos ("FBPC", 0, "FLTC", 0., ycoor, 0., 0, "ONLY");
3fe3a833 574}
fe4da5cc 575
3fe3a833 576//_____________________________________________________________________________
577void AliTOFv0::DrawModule()
578{
579 //
937fe4a4 580 // Draw a shaded view of the Time Of Flight version 1
3fe3a833 581 //
fe4da5cc 582 // Set everything unseen
cfce8870 583 gMC->Gsatt("*", "seen", -1);
fe4da5cc 584 //
585 // Set ALIC mother transparent
cfce8870 586 gMC->Gsatt("ALIC","SEEN",0);
fe4da5cc 587 //
588 // Set the volumes visible
3fe3a833 589 gMC->Gsatt("ALIC","SEEN",0);
2cef3cb2 590
591 gMC->Gsatt("FTOA","SEEN",1);
592 gMC->Gsatt("FTOB","SEEN",1);
593 gMC->Gsatt("FTOC","SEEN",1);
594 gMC->Gsatt("FLTA","SEEN",1);
595 gMC->Gsatt("FLTB","SEEN",1);
596 gMC->Gsatt("FLTC","SEEN",1);
597 gMC->Gsatt("FPLA","SEEN",1);
598 gMC->Gsatt("FPLB","SEEN",1);
599 gMC->Gsatt("FPLC","SEEN",1);
600 gMC->Gsatt("FSTR","SEEN",1);
601 gMC->Gsatt("FPEA","SEEN",1);
602 gMC->Gsatt("FPEB","SEEN",1);
603 gMC->Gsatt("FPEC","SEEN",1);
604
605 gMC->Gsatt("FLZ1","SEEN",0);
606 gMC->Gsatt("FLZ2","SEEN",0);
607 gMC->Gsatt("FLZ3","SEEN",0);
608 gMC->Gsatt("FLX1","SEEN",0);
609 gMC->Gsatt("FLX2","SEEN",0);
610 gMC->Gsatt("FLX3","SEEN",0);
611 gMC->Gsatt("FPAD","SEEN",0);
612
cfce8870 613 gMC->Gdopt("hide", "on");
614 gMC->Gdopt("shad", "on");
615 gMC->Gsatt("*", "fill", 7);
cfce8870 616 gMC->SetClipBox(".");
617 gMC->SetClipBox("*", 0, 1000, -1000, 1000, -1000, 1000);
618 gMC->DefaultRange();
619 gMC->Gdraw("alic", 40, 30, 0, 12, 9.5, .02, .02);
620 gMC->Gdhead(1111, "Time Of Flight");
621 gMC->Gdman(18, 4, "MAN");
622 gMC->Gdopt("hide","off");
fe4da5cc 623}
624
625//_____________________________________________________________________________
626void AliTOFv0::CreateMaterials()
627{
628 //
629 // Define materials for the Time Of Flight
630 //
631 AliTOF::CreateMaterials();
632}
633
634//_____________________________________________________________________________
635void AliTOFv0::Init()
636{
637 //
3fe3a833 638 // Initialise the detector after the geometry has been defined
fe4da5cc 639 //
ab76897d 640 printf("**************************************"
641 " TOF "
642 "**************************************\n");
2cef3cb2 643 printf("\n Version 0 of TOF initialing, "
644 "symmetric TOF\n");
ab76897d 645
fe4da5cc 646 AliTOF::Init();
ab76897d 647
2cef3cb2 648 fIdFTOA = gMC->VolId("FTOA");
649 fIdFTOB = gMC->VolId("FTOB");
650 fIdFTOC = gMC->VolId("FTOC");
651 fIdFLTA = gMC->VolId("FLTA");
652 fIdFLTB = gMC->VolId("FLTB");
653 fIdFLTC = gMC->VolId("FLTC");
ab76897d 654
655 printf("**************************************"
656 " TOF "
657 "**************************************\n");
fe4da5cc 658}
659
660//_____________________________________________________________________________
661void AliTOFv0::StepManager()
662{
663 //
664 // Procedure called at each step in the Time Of Flight
3fe3a833 665 //
826b71ec 666 Float_t hits[8],rho,phi,phid,z;
2cef3cb2 667 Int_t sector, plate, pad_x, pad_z, strip;
668 Int_t copy, pad_z_id, pad_x_id, strip_id, i;
669 Int_t vol[4];
670 Int_t *idtmed = fIdtmed->GetArray()-499;
671 TLorentzVector mom, pos;
826b71ec 672
673
674 if(gMC->GetMedium()==idtmed[513] &&
0a6d8768 675 gMC->IsTrackEntering() && gMC->TrackCharge()
826b71ec 676 && gMC->CurrentVolID(copy)==fIdSens)
2cef3cb2 677 {
678// getting information about hit volumes
826b71ec 679
680 pad_z_id=gMC->CurrentVolOffID(2,copy);
681 pad_z=copy;
682
683 pad_x_id=gMC->CurrentVolOffID(1,copy);
684 pad_x=copy;
685
686 strip_id=gMC->CurrentVolOffID(5,copy);
687 strip=copy;
688
689 pad_z = (strip-1)*2+pad_z;
690
0a6d8768 691 gMC->TrackPosition(pos);
692 gMC->TrackMomentum(mom);
826b71ec 693
694 rho = sqrt(pos[0]*pos[0]+pos[1]*pos[1]);
695 phi = TMath::ACos(pos[0]/rho);
696 Float_t as = TMath::ASin(pos[1]/rho);
697 if (as<0) phi = 2*3.141592654-phi;
698
699 z = pos[2];
700
2cef3cb2 701 plate = 0;
702 Float_t limA = fZlenA*0.5;
703 Float_t limB = fZlenB+limA;
704
705 if (TMath::Abs(z)<=limA) plate = 3;
706 if (z<= limB && z> limA) plate = 2;
707 if (z>=-limB && z<-limA) plate = 4;
708 if (z> limB) plate = 1;
709 if (z<-limB) plate = 5;
710
711 if (plate==3) pad_z -= 2;
826b71ec 712
2cef3cb2 713 phid = phi*kRaddeg;
826b71ec 714 sector = Int_t (phid/20.);
715 sector++;
716
2cef3cb2 717 Double_t ptot = mom.Rho();
718 Double_t norm = 1/ptot;
0a6d8768 719 for(i=0;i<3;++i) {
2cef3cb2 720 hits[i] = pos[i];
721 hits[i+3] = mom[i]*norm;
0a6d8768 722 }
2cef3cb2 723 hits[6] = ptot;
724 hits[7] = pos[3];
725
726 vol[0] = sector;
727 vol[1] = plate;
728 vol[2] = pad_x;
729 vol[3] = pad_z;
730
731 Int_t track = gAlice->CurrentTrack();
732 AliTOF::AddHit(track,vol, hits);
fe4da5cc 733 }
734}