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f7336fa3 | 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 | $Log$ | |
ff821236 | 18 | Revision 1.10 2001/05/07 08:08:05 cblume |
19 | Update of TRD code | |
20 | ||
a2b90f83 | 21 | Revision 1.9 2001/03/27 12:48:33 cblume |
22 | Correct for volume overlaps | |
23 | ||
b42a9f88 | 24 | Revision 1.8 2001/03/13 09:30:35 cblume |
25 | Update of digitization. Moved digit branch definition to AliTRD | |
26 | ||
6244debe | 27 | Revision 1.7 2001/02/14 18:22:26 cblume |
28 | Change in the geometry of the padplane | |
29 | ||
71d9fa7b | 30 | Revision 1.6 2000/11/01 14:53:20 cblume |
31 | Merge with TRD-develop | |
32 | ||
793ff80c | 33 | Revision 1.1.4.7 2000/10/16 01:16:53 cblume |
34 | Changed timebin 0 to be the one closest to the readout | |
35 | ||
36 | Revision 1.1.4.6 2000/10/15 23:35:57 cblume | |
37 | Include geometry constants as static member | |
38 | ||
39 | Revision 1.1.4.5 2000/10/06 16:49:46 cblume | |
40 | Made Getters const | |
41 | ||
42 | Revision 1.1.4.4 2000/10/04 16:34:58 cblume | |
43 | Replace include files by forward declarations | |
44 | ||
45 | Revision 1.1.4.3 2000/09/22 14:43:40 cblume | |
46 | Allow the pad/timebin-dimensions to be changed after initialization | |
47 | ||
48 | Revision 1.1.4.2 2000/09/18 13:37:01 cblume | |
49 | Minor coding corrections | |
50 | ||
51 | Revision 1.5 2000/10/02 21:28:19 fca | |
52 | Removal of useless dependecies via forward declarations | |
53 | ||
54 | Revision 1.4 2000/06/08 18:32:58 cblume | |
55 | Make code compliant to coding conventions | |
56 | ||
57 | Revision 1.3 2000/06/07 16:25:37 cblume | |
58 | Try to remove compiler warnings on Sun and HP | |
59 | ||
60 | Revision 1.2 2000/05/08 16:17:27 cblume | |
61 | Merge TRD-develop | |
62 | ||
63 | Revision 1.1.4.1 2000/05/08 14:45:55 cblume | |
64 | Bug fix in RotateBack(). Geometry update | |
65 | ||
94de3818 | 66 | Revision 1.4 2000/06/08 18:32:58 cblume |
67 | Make code compliant to coding conventions | |
68 | ||
8230f242 | 69 | Revision 1.3 2000/06/07 16:25:37 cblume |
70 | Try to remove compiler warnings on Sun and HP | |
71 | ||
9d0b222b | 72 | Revision 1.2 2000/05/08 16:17:27 cblume |
73 | Merge TRD-develop | |
74 | ||
6f1e466d | 75 | Revision 1.1.4.1 2000/05/08 14:45:55 cblume |
76 | Bug fix in RotateBack(). Geometry update | |
77 | ||
78 | Revision 1.1 2000/02/28 19:00:44 cblume | |
79 | Add new TRD classes | |
80 | ||
f7336fa3 | 81 | */ |
82 | ||
83 | /////////////////////////////////////////////////////////////////////////////// | |
84 | // // | |
85 | // TRD geometry class // | |
86 | // // | |
87 | /////////////////////////////////////////////////////////////////////////////// | |
88 | ||
793ff80c | 89 | #include "AliMC.h" |
90 | ||
f7336fa3 | 91 | #include "AliTRDgeometry.h" |
92 | #include "AliTRDrecPoint.h" | |
94de3818 | 93 | #include "AliMC.h" |
f7336fa3 | 94 | |
95 | ClassImp(AliTRDgeometry) | |
96 | ||
793ff80c | 97 | //_____________________________________________________________________________ |
98 | ||
99 | // | |
100 | // The geometry constants | |
101 | // | |
102 | const Int_t AliTRDgeometry::fgkNsect = kNsect; | |
103 | const Int_t AliTRDgeometry::fgkNplan = kNplan; | |
104 | const Int_t AliTRDgeometry::fgkNcham = kNcham; | |
105 | const Int_t AliTRDgeometry::fgkNdet = kNdet; | |
106 | ||
107 | // | |
108 | // Dimensions of the detector | |
109 | // | |
110 | const Float_t AliTRDgeometry::fgkRmin = 294.0; | |
111 | const Float_t AliTRDgeometry::fgkRmax = 368.0; | |
112 | ||
113 | const Float_t AliTRDgeometry::fgkZmax1 = 378.35; | |
114 | const Float_t AliTRDgeometry::fgkZmax2 = 302.0; | |
115 | ||
116 | const Float_t AliTRDgeometry::fgkSheight = 74.0; | |
117 | const Float_t AliTRDgeometry::fgkSwidth1 = 99.613; | |
118 | const Float_t AliTRDgeometry::fgkSwidth2 = 125.707; | |
119 | const Float_t AliTRDgeometry::fgkSlenTR1 = 751.0; | |
120 | const Float_t AliTRDgeometry::fgkSlenTR2 = 313.5; | |
121 | const Float_t AliTRDgeometry::fgkSlenTR3 = 159.5; | |
122 | ||
123 | const Float_t AliTRDgeometry::fgkCheight = 11.0; | |
124 | const Float_t AliTRDgeometry::fgkCspace = 1.6; | |
125 | const Float_t AliTRDgeometry::fgkCathick = 1.0; | |
126 | const Float_t AliTRDgeometry::fgkCcthick = 1.0; | |
127 | const Float_t AliTRDgeometry::fgkCaframe = 2.675; | |
128 | const Float_t AliTRDgeometry::fgkCcframe = AliTRDgeometry::fgkCheight | |
129 | - AliTRDgeometry::fgkCaframe; | |
130 | ||
131 | // | |
132 | // Thickness of the the material layers | |
133 | // | |
134 | const Float_t AliTRDgeometry::fgkSeThick = 0.02; | |
b42a9f88 | 135 | const Float_t AliTRDgeometry::fgkRaThick = 4.78; |
793ff80c | 136 | const Float_t AliTRDgeometry::fgkPeThick = 0.20; |
137 | const Float_t AliTRDgeometry::fgkMyThick = 0.005; | |
138 | const Float_t AliTRDgeometry::fgkXeThick = 3.5; | |
139 | const Float_t AliTRDgeometry::fgkDrThick = 3.0; | |
140 | const Float_t AliTRDgeometry::fgkAmThick = AliTRDgeometry::fgkXeThick | |
141 | - AliTRDgeometry::fgkDrThick; | |
142 | const Float_t AliTRDgeometry::fgkCuThick = 0.001; | |
143 | const Float_t AliTRDgeometry::fgkSuThick = 0.06; | |
144 | const Float_t AliTRDgeometry::fgkFeThick = 0.0044; | |
145 | const Float_t AliTRDgeometry::fgkCoThick = 0.02; | |
146 | const Float_t AliTRDgeometry::fgkWaThick = 0.01; | |
147 | ||
148 | // | |
149 | // Position of the material layers | |
150 | // | |
b42a9f88 | 151 | const Float_t AliTRDgeometry::fgkSeZpos = -4.14; |
152 | const Float_t AliTRDgeometry::fgkRaZpos = -1.74; | |
793ff80c | 153 | const Float_t AliTRDgeometry::fgkPeZpos = 0.0000; |
b42a9f88 | 154 | const Float_t AliTRDgeometry::fgkMyZpos = 0.6550; |
155 | const Float_t AliTRDgeometry::fgkDrZpos = 2.1600; | |
156 | const Float_t AliTRDgeometry::fgkAmZpos = 3.9100; | |
793ff80c | 157 | const Float_t AliTRDgeometry::fgkCuZpos = -1.3370; |
158 | const Float_t AliTRDgeometry::fgkSuZpos = 0.0000; | |
159 | const Float_t AliTRDgeometry::fgkFeZpos = 1.3053; | |
160 | const Float_t AliTRDgeometry::fgkCoZpos = 1.3175; | |
161 | const Float_t AliTRDgeometry::fgkWaZpos = 1.3325; | |
162 | ||
f7336fa3 | 163 | //_____________________________________________________________________________ |
164 | AliTRDgeometry::AliTRDgeometry():AliGeometry() | |
165 | { | |
166 | // | |
167 | // AliTRDgeometry default constructor | |
168 | // | |
169 | ||
170 | Init(); | |
171 | ||
172 | } | |
173 | ||
174 | //_____________________________________________________________________________ | |
175 | AliTRDgeometry::~AliTRDgeometry() | |
176 | { | |
8230f242 | 177 | // |
178 | // AliTRDgeometry destructor | |
179 | // | |
f7336fa3 | 180 | |
181 | } | |
182 | ||
183 | //_____________________________________________________________________________ | |
184 | void AliTRDgeometry::Init() | |
185 | { | |
186 | // | |
187 | // Initializes the geometry parameter | |
188 | // | |
189 | ||
793ff80c | 190 | Int_t isect; |
f7336fa3 | 191 | |
192 | // The width of the chambers | |
793ff80c | 193 | fCwidth[0] = 99.6; |
194 | fCwidth[1] = 104.1; | |
195 | fCwidth[2] = 108.5; | |
196 | fCwidth[3] = 112.9; | |
197 | fCwidth[4] = 117.4; | |
198 | fCwidth[5] = 121.8; | |
f7336fa3 | 199 | |
200 | // The maximum number of pads | |
201 | // and the position of pad 0,0,0 | |
202 | // | |
203 | // chambers seen from the top: | |
204 | // +----------------------------+ | |
205 | // | | | |
793ff80c | 206 | // | | ^ |
207 | // | | rphi| | |
208 | // | | | | |
209 | // |0 | | | |
210 | // +----------------------------+ +------> | |
f7336fa3 | 211 | // z |
793ff80c | 212 | // chambers seen from the side: ^ |
213 | // +----------------------------+ drift| | |
214 | // |0 | | | |
215 | // | | | | |
216 | // +----------------------------+ +------> | |
f7336fa3 | 217 | // z |
218 | // | |
a2b90f83 | 219 | // IMPORTANT: time bin 0 is now the first one in the drift region |
220 | // closest to the readout !!! | |
793ff80c | 221 | // |
f7336fa3 | 222 | |
223 | // The pad column (rphi-direction) | |
71d9fa7b | 224 | SetNColPad(96); |
793ff80c | 225 | |
a2b90f83 | 226 | // The number of time bins. Default is 100 ns timbin size |
6244debe | 227 | SetNTimeBin(15); |
793ff80c | 228 | |
a2b90f83 | 229 | // Additional time bins before and after the drift region. |
230 | // Default is to only sample the drift region | |
231 | SetExpandTimeBin(0,0); | |
232 | ||
793ff80c | 233 | // The rotation matrix elements |
234 | Float_t phi = 0; | |
235 | for (isect = 0; isect < fgkNsect; isect++) { | |
236 | phi = -2.0 * kPI / (Float_t) fgkNsect * ((Float_t) isect + 0.5); | |
237 | fRotA11[isect] = TMath::Cos(phi); | |
238 | fRotA12[isect] = TMath::Sin(phi); | |
239 | fRotA21[isect] = TMath::Sin(phi); | |
240 | fRotA22[isect] = TMath::Cos(phi); | |
241 | phi = -1.0 * phi; | |
242 | fRotB11[isect] = TMath::Cos(phi); | |
243 | fRotB12[isect] = TMath::Sin(phi); | |
244 | fRotB21[isect] = TMath::Sin(phi); | |
245 | fRotB22[isect] = TMath::Cos(phi); | |
246 | } | |
247 | ||
248 | } | |
249 | ||
250 | //_____________________________________________________________________________ | |
a2b90f83 | 251 | void AliTRDgeometry::SetNColPad(const Int_t npad) |
793ff80c | 252 | { |
253 | // | |
71d9fa7b | 254 | // Redefines the number of pads in column direction |
793ff80c | 255 | // |
256 | ||
793ff80c | 257 | for (Int_t iplan = 0; iplan < fgkNplan; iplan++) { |
71d9fa7b | 258 | fColMax[iplan] = npad; |
259 | fColPadSize[iplan] = (fCwidth[iplan] - 2. * fgkCcthick) / fColMax[iplan]; | |
260 | fCol0[iplan] = -fCwidth[iplan]/2. + fgkCcthick; | |
f7336fa3 | 261 | } |
262 | ||
793ff80c | 263 | } |
264 | ||
265 | //_____________________________________________________________________________ | |
a2b90f83 | 266 | void AliTRDgeometry::SetNTimeBin(const Int_t nbin) |
793ff80c | 267 | { |
268 | // | |
a2b90f83 | 269 | // Redefines the number of time bins in the drift region. |
270 | // The time bin width is defined by the length of the | |
271 | // drift region divided by <nbin>. | |
793ff80c | 272 | // |
273 | ||
71d9fa7b | 274 | fTimeMax = nbin; |
275 | fTimeBinSize = fgkDrThick / ((Float_t) fTimeMax); | |
793ff80c | 276 | for (Int_t iplan = 0; iplan < fgkNplan; iplan++) { |
277 | fTime0[iplan] = fgkRmin + fgkCcframe/2. + fgkDrZpos + 0.5 * fgkDrThick | |
278 | + iplan * (fgkCheight + fgkCspace); | |
279 | } | |
f7336fa3 | 280 | |
281 | } | |
282 | ||
283 | //_____________________________________________________________________________ | |
284 | void AliTRDgeometry::CreateGeometry(Int_t *idtmed) | |
285 | { | |
286 | // | |
287 | // Create the TRD geometry | |
288 | // | |
289 | // Author: Christoph Blume (C.Blume@gsi.de) 20/07/99 | |
290 | // | |
291 | // The volumes: | |
292 | // TRD1-3 (Air) --- The TRD mother volumes for one sector. | |
293 | // To be placed into the spaceframe. | |
294 | // | |
295 | // UAFI(/M/O) (Al) --- The aluminum frame of the inner(/middle/outer) chambers (readout) | |
296 | // UCFI(/M/O) (C) --- The carbon frame of the inner(/middle/outer) chambers | |
297 | // (driftchamber + radiator) | |
298 | // UAII(/M/O) (Air) --- The inner part of the readout of the inner(/middle/outer) chambers | |
299 | // UFII(/M/O) (Air) --- The inner part of the chamner and radiator of the | |
300 | // inner(/middle/outer) chambers | |
301 | // | |
302 | // The material layers in one chamber: | |
303 | // UL01 (G10) --- The gas seal of the radiator | |
304 | // UL02 (CO2) --- The gas in the radiator | |
305 | // UL03 (PE) --- The foil stack | |
306 | // UL04 (Mylar) --- Entrance window to the driftvolume and HV-cathode | |
307 | // UL05 (Xe) --- The driftvolume | |
308 | // UL06 (Xe) --- The amplification region | |
309 | // | |
310 | // UL07 (Cu) --- The pad plane | |
311 | // UL08 (G10) --- The Nomex honeycomb support structure | |
312 | // UL09 (Cu) --- FEE and signal lines | |
313 | // UL10 (PE) --- The cooling devices | |
314 | // UL11 (Water) --- The cooling water | |
315 | ||
8230f242 | 316 | const Int_t kNparCha = 3; |
f7336fa3 | 317 | |
8230f242 | 318 | Float_t parDum[3]; |
319 | Float_t parCha[kNparCha]; | |
f7336fa3 | 320 | |
321 | Float_t xpos, ypos, zpos; | |
322 | ||
323 | // The aluminum frames - readout + electronics (Al) | |
324 | // The inner chambers | |
8230f242 | 325 | gMC->Gsvolu("UAFI","BOX ",idtmed[1301-1],parDum,0); |
f7336fa3 | 326 | // The middle chambers |
8230f242 | 327 | gMC->Gsvolu("UAFM","BOX ",idtmed[1301-1],parDum,0); |
f7336fa3 | 328 | // The outer chambers |
8230f242 | 329 | gMC->Gsvolu("UAFO","BOX ",idtmed[1301-1],parDum,0); |
f7336fa3 | 330 | |
331 | // The inner part of the aluminum frames (Air) | |
332 | // The inner chambers | |
8230f242 | 333 | gMC->Gsvolu("UAII","BOX ",idtmed[1302-1],parDum,0); |
f7336fa3 | 334 | // The middle chambers |
8230f242 | 335 | gMC->Gsvolu("UAIM","BOX ",idtmed[1302-1],parDum,0); |
f7336fa3 | 336 | // The outer chambers |
8230f242 | 337 | gMC->Gsvolu("UAIO","BOX ",idtmed[1302-1],parDum,0); |
f7336fa3 | 338 | |
339 | // The carbon frames - radiator + driftchamber (C) | |
340 | // The inner chambers | |
8230f242 | 341 | gMC->Gsvolu("UCFI","BOX ",idtmed[1307-1],parDum,0); |
f7336fa3 | 342 | // The middle chambers |
8230f242 | 343 | gMC->Gsvolu("UCFM","BOX ",idtmed[1307-1],parDum,0); |
f7336fa3 | 344 | // The outer chambers |
8230f242 | 345 | gMC->Gsvolu("UCFO","BOX ",idtmed[1307-1],parDum,0); |
f7336fa3 | 346 | |
347 | // The inner part of the carbon frames (Air) | |
348 | // The inner chambers | |
8230f242 | 349 | gMC->Gsvolu("UCII","BOX ",idtmed[1302-1],parDum,0); |
f7336fa3 | 350 | // The middle chambers |
8230f242 | 351 | gMC->Gsvolu("UCIM","BOX ",idtmed[1302-1],parDum,0); |
f7336fa3 | 352 | // The outer chambers |
8230f242 | 353 | gMC->Gsvolu("UCIO","BOX ",idtmed[1302-1],parDum,0); |
f7336fa3 | 354 | |
355 | // The material layers inside the chambers | |
8230f242 | 356 | parCha[0] = -1.; |
357 | parCha[1] = -1.; | |
f7336fa3 | 358 | // G10 layer (radiator seal) |
793ff80c | 359 | parCha[2] = fgkSeThick/2; |
8230f242 | 360 | gMC->Gsvolu("UL01","BOX ",idtmed[1313-1],parCha,kNparCha); |
f7336fa3 | 361 | // CO2 layer (radiator) |
793ff80c | 362 | parCha[2] = fgkRaThick/2; |
8230f242 | 363 | gMC->Gsvolu("UL02","BOX ",idtmed[1312-1],parCha,kNparCha); |
f7336fa3 | 364 | // PE layer (radiator) |
793ff80c | 365 | parCha[2] = fgkPeThick/2; |
8230f242 | 366 | gMC->Gsvolu("UL03","BOX ",idtmed[1303-1],parCha,kNparCha); |
f7336fa3 | 367 | // Mylar layer (entrance window + HV cathode) |
793ff80c | 368 | parCha[2] = fgkMyThick/2; |
8230f242 | 369 | gMC->Gsvolu("UL04","BOX ",idtmed[1308-1],parCha,kNparCha); |
f7336fa3 | 370 | // Xe/Isobutane layer (drift volume, sensitive) |
793ff80c | 371 | parCha[2] = fgkDrThick/2.; |
8230f242 | 372 | gMC->Gsvolu("UL05","BOX ",idtmed[1309-1],parCha,kNparCha); |
f7336fa3 | 373 | // Xe/Isobutane layer (amplification volume, not sensitive) |
793ff80c | 374 | parCha[2] = fgkAmThick/2.; |
8230f242 | 375 | gMC->Gsvolu("UL06","BOX ",idtmed[1309-1],parCha,kNparCha); |
f7336fa3 | 376 | |
377 | // Cu layer (pad plane) | |
793ff80c | 378 | parCha[2] = fgkCuThick/2; |
8230f242 | 379 | gMC->Gsvolu("UL07","BOX ",idtmed[1305-1],parCha,kNparCha); |
f7336fa3 | 380 | // G10 layer (support structure) |
793ff80c | 381 | parCha[2] = fgkSuThick/2; |
8230f242 | 382 | gMC->Gsvolu("UL08","BOX ",idtmed[1313-1],parCha,kNparCha); |
f7336fa3 | 383 | // Cu layer (FEE + signal lines) |
793ff80c | 384 | parCha[2] = fgkFeThick/2; |
8230f242 | 385 | gMC->Gsvolu("UL09","BOX ",idtmed[1305-1],parCha,kNparCha); |
f7336fa3 | 386 | // PE layer (cooling devices) |
793ff80c | 387 | parCha[2] = fgkCoThick/2; |
8230f242 | 388 | gMC->Gsvolu("UL10","BOX ",idtmed[1303-1],parCha,kNparCha); |
f7336fa3 | 389 | // Water layer (cooling) |
793ff80c | 390 | parCha[2] = fgkWaThick/2; |
8230f242 | 391 | gMC->Gsvolu("UL11","BOX ",idtmed[1314-1],parCha,kNparCha); |
f7336fa3 | 392 | |
393 | // Position the layers in the chambers | |
394 | xpos = 0; | |
395 | ypos = 0; | |
396 | ||
397 | // G10 layer (radiator seal) | |
793ff80c | 398 | zpos = fgkSeZpos; |
f7336fa3 | 399 | gMC->Gspos("UL01",1,"UCII",xpos,ypos,zpos,0,"ONLY"); |
400 | gMC->Gspos("UL01",2,"UCIM",xpos,ypos,zpos,0,"ONLY"); | |
401 | gMC->Gspos("UL01",3,"UCIO",xpos,ypos,zpos,0,"ONLY"); | |
402 | // CO2 layer (radiator) | |
793ff80c | 403 | zpos = fgkRaZpos; |
f7336fa3 | 404 | gMC->Gspos("UL02",1,"UCII",xpos,ypos,zpos,0,"ONLY"); |
405 | gMC->Gspos("UL02",2,"UCIM",xpos,ypos,zpos,0,"ONLY"); | |
406 | gMC->Gspos("UL02",3,"UCIO",xpos,ypos,zpos,0,"ONLY"); | |
407 | // PE layer (radiator) | |
408 | zpos = 0; | |
409 | gMC->Gspos("UL03",1,"UL02",xpos,ypos,zpos,0,"ONLY"); | |
410 | // Mylar layer (entrance window + HV cathode) | |
793ff80c | 411 | zpos = fgkMyZpos; |
f7336fa3 | 412 | gMC->Gspos("UL04",1,"UCII",xpos,ypos,zpos,0,"ONLY"); |
413 | gMC->Gspos("UL04",2,"UCIM",xpos,ypos,zpos,0,"ONLY"); | |
414 | gMC->Gspos("UL04",3,"UCIO",xpos,ypos,zpos,0,"ONLY"); | |
415 | // Xe/Isobutane layer (drift volume) | |
793ff80c | 416 | zpos = fgkDrZpos; |
f7336fa3 | 417 | gMC->Gspos("UL05",1,"UCII",xpos,ypos,zpos,0,"ONLY"); |
418 | gMC->Gspos("UL05",2,"UCIM",xpos,ypos,zpos,0,"ONLY"); | |
419 | gMC->Gspos("UL05",3,"UCIO",xpos,ypos,zpos,0,"ONLY"); | |
420 | // Xe/Isobutane layer (amplification volume) | |
793ff80c | 421 | zpos = fgkAmZpos; |
f7336fa3 | 422 | gMC->Gspos("UL06",1,"UCII",xpos,ypos,zpos,0,"ONLY"); |
423 | gMC->Gspos("UL06",2,"UCIM",xpos,ypos,zpos,0,"ONLY"); | |
424 | gMC->Gspos("UL06",3,"UCIO",xpos,ypos,zpos,0,"ONLY"); | |
425 | ||
426 | // Cu layer (pad plane) | |
793ff80c | 427 | zpos = fgkCuZpos; |
f7336fa3 | 428 | gMC->Gspos("UL07",1,"UAII",xpos,ypos,zpos,0,"ONLY"); |
429 | gMC->Gspos("UL07",2,"UAIM",xpos,ypos,zpos,0,"ONLY"); | |
430 | gMC->Gspos("UL07",3,"UAIO",xpos,ypos,zpos,0,"ONLY"); | |
431 | // G10 layer (support structure) | |
793ff80c | 432 | zpos = fgkSuZpos; |
f7336fa3 | 433 | gMC->Gspos("UL08",1,"UAII",xpos,ypos,zpos,0,"ONLY"); |
434 | gMC->Gspos("UL08",2,"UAIM",xpos,ypos,zpos,0,"ONLY"); | |
435 | gMC->Gspos("UL08",3,"UAIO",xpos,ypos,zpos,0,"ONLY"); | |
436 | // Cu layer (FEE + signal lines) | |
793ff80c | 437 | zpos = fgkFeZpos; |
f7336fa3 | 438 | gMC->Gspos("UL09",1,"UAII",xpos,ypos,zpos,0,"ONLY"); |
439 | gMC->Gspos("UL09",2,"UAIM",xpos,ypos,zpos,0,"ONLY"); | |
440 | gMC->Gspos("UL09",3,"UAIO",xpos,ypos,zpos,0,"ONLY"); | |
441 | // PE layer (cooling devices) | |
793ff80c | 442 | zpos = fgkCoZpos; |
f7336fa3 | 443 | gMC->Gspos("UL10",1,"UAII",xpos,ypos,zpos,0,"ONLY"); |
444 | gMC->Gspos("UL10",2,"UAIM",xpos,ypos,zpos,0,"ONLY"); | |
445 | gMC->Gspos("UL10",3,"UAIO",xpos,ypos,zpos,0,"ONLY"); | |
446 | // Water layer (cooling) | |
793ff80c | 447 | zpos = fgkWaZpos; |
f7336fa3 | 448 | gMC->Gspos("UL11",1,"UAII",xpos,ypos,zpos,0,"ONLY"); |
449 | gMC->Gspos("UL11",1,"UAIM",xpos,ypos,zpos,0,"ONLY"); | |
450 | gMC->Gspos("UL11",1,"UAIO",xpos,ypos,zpos,0,"ONLY"); | |
451 | ||
452 | } | |
453 | ||
454 | //_____________________________________________________________________________ | |
94de3818 | 455 | Bool_t AliTRDgeometry::Local2Global(Int_t idet, Float_t *local, Float_t *global) const |
f7336fa3 | 456 | { |
457 | // | |
458 | // Converts local pad-coordinates (row,col,time) into | |
459 | // global ALICE reference frame coordinates (x,y,z) | |
460 | // | |
461 | ||
793ff80c | 462 | Int_t icham = GetChamber(idet); // Chamber info (0-4) |
463 | Int_t isect = GetSector(idet); // Sector info (0-17) | |
464 | Int_t iplan = GetPlane(idet); // Plane info (0-5) | |
f7336fa3 | 465 | |
6f1e466d | 466 | return Local2Global(iplan,icham,isect,local,global); |
f7336fa3 | 467 | |
468 | } | |
469 | ||
470 | //_____________________________________________________________________________ | |
471 | Bool_t AliTRDgeometry::Local2Global(Int_t iplan, Int_t icham, Int_t isect | |
94de3818 | 472 | , Float_t *local, Float_t *global) const |
f7336fa3 | 473 | { |
474 | // | |
475 | // Converts local pad-coordinates (row,col,time) into | |
476 | // global ALICE reference frame coordinates (x,y,z) | |
477 | // | |
478 | ||
793ff80c | 479 | Int_t idet = GetDetector(iplan,icham,isect); // Detector number |
f7336fa3 | 480 | |
793ff80c | 481 | Float_t padRow = local[0]; // Pad Row position |
482 | Float_t padCol = local[1]; // Pad Column position | |
483 | Float_t timeSlice = local[2]; // Time "position" | |
f7336fa3 | 484 | |
793ff80c | 485 | Float_t row0 = GetRow0(iplan,icham,isect); |
486 | Float_t col0 = GetCol0(iplan); | |
487 | Float_t time0 = GetTime0(iplan); | |
f7336fa3 | 488 | |
793ff80c | 489 | Float_t rot[3]; |
f7336fa3 | 490 | |
491 | // calculate (x,y,z) position in rotated chamber | |
a2b90f83 | 492 | rot[0] = time0 - (timeSlice - fTimeBefore) * fTimeBinSize; |
493 | rot[1] = col0 + padCol * fColPadSize[iplan]; | |
494 | rot[2] = row0 + padRow * fRowPadSize[iplan][icham][isect]; | |
f7336fa3 | 495 | |
496 | // Rotate back to original position | |
497 | return RotateBack(idet,rot,global); | |
498 | ||
499 | } | |
500 | ||
501 | //_____________________________________________________________________________ | |
793ff80c | 502 | Bool_t AliTRDgeometry::Rotate(Int_t d, Float_t *pos, Float_t *rot) const |
f7336fa3 | 503 | { |
504 | // | |
505 | // Rotates all chambers in the position of sector 0 and transforms | |
506 | // the coordinates in the ALICE restframe <pos> into the | |
507 | // corresponding local frame <rot>. | |
508 | // | |
509 | ||
793ff80c | 510 | Int_t sector = GetSector(d); |
f7336fa3 | 511 | |
793ff80c | 512 | rot[0] = pos[0] * fRotA11[sector] + pos[1] * fRotA12[sector]; |
513 | rot[1] = -pos[0] * fRotA21[sector] + pos[1] * fRotA22[sector]; | |
f7336fa3 | 514 | rot[2] = pos[2]; |
515 | ||
516 | return kTRUE; | |
517 | ||
518 | } | |
519 | ||
520 | //_____________________________________________________________________________ | |
94de3818 | 521 | Bool_t AliTRDgeometry::RotateBack(Int_t d, Float_t *rot, Float_t *pos) const |
f7336fa3 | 522 | { |
523 | // | |
524 | // Rotates a chambers from the position of sector 0 into its | |
525 | // original position and transforms the corresponding local frame | |
526 | // coordinates <rot> into the coordinates of the ALICE restframe <pos>. | |
527 | // | |
528 | ||
793ff80c | 529 | Int_t sector = GetSector(d); |
f7336fa3 | 530 | |
793ff80c | 531 | pos[0] = rot[0] * fRotB11[sector] + rot[1] * fRotB12[sector]; |
532 | pos[1] = -rot[0] * fRotB21[sector] + rot[1] * fRotB22[sector]; | |
6f1e466d | 533 | pos[2] = rot[2]; |
f7336fa3 | 534 | |
535 | return kTRUE; | |
536 | ||
537 | } | |
538 | ||
539 | //_____________________________________________________________________________ | |
ff821236 | 540 | Int_t AliTRDgeometry::GetDetector(const Int_t p, const Int_t c, const Int_t s) const |
f7336fa3 | 541 | { |
542 | // | |
543 | // Convert plane / chamber / sector into detector number | |
544 | // | |
545 | ||
793ff80c | 546 | return (p + c * fgkNplan + s * fgkNplan * fgkNcham); |
f7336fa3 | 547 | |
548 | } | |
549 | ||
550 | //_____________________________________________________________________________ | |
ff821236 | 551 | Int_t AliTRDgeometry::GetPlane(const Int_t d) const |
f7336fa3 | 552 | { |
553 | // | |
554 | // Reconstruct the plane number from the detector number | |
555 | // | |
556 | ||
793ff80c | 557 | return ((Int_t) (d % fgkNplan)); |
f7336fa3 | 558 | |
559 | } | |
560 | ||
561 | //_____________________________________________________________________________ | |
ff821236 | 562 | Int_t AliTRDgeometry::GetChamber(const Int_t d) const |
f7336fa3 | 563 | { |
564 | // | |
565 | // Reconstruct the chamber number from the detector number | |
566 | // | |
567 | ||
793ff80c | 568 | return ((Int_t) (d % (fgkNplan * fgkNcham)) / fgkNplan); |
f7336fa3 | 569 | |
570 | } | |
571 | ||
572 | //_____________________________________________________________________________ | |
ff821236 | 573 | Int_t AliTRDgeometry::GetSector(const Int_t d) const |
f7336fa3 | 574 | { |
575 | // | |
576 | // Reconstruct the sector number from the detector number | |
577 | // | |
578 | ||
793ff80c | 579 | return ((Int_t) (d / (fgkNplan * fgkNcham))); |
f7336fa3 | 580 | |
581 | } | |
582 | ||
583 | //_____________________________________________________________________________ | |
793ff80c | 584 | void AliTRDgeometry::GetGlobal(const AliRecPoint *p, TVector3 &pos |
585 | , TMatrix &mat) const | |
f7336fa3 | 586 | { |
587 | // | |
588 | // Returns the global coordinate and error matrix of a AliTRDrecPoint | |
589 | // | |
590 | ||
591 | GetGlobal(p,pos); | |
9d0b222b | 592 | mat.Zero(); |
f7336fa3 | 593 | |
594 | } | |
595 | ||
596 | //_____________________________________________________________________________ | |
94de3818 | 597 | void AliTRDgeometry::GetGlobal(const AliRecPoint *p, TVector3 &pos) const |
f7336fa3 | 598 | { |
599 | // | |
600 | // Returns the global coordinate and error matrix of a AliTRDrecPoint | |
601 | // | |
602 | ||
603 | Int_t detector = ((AliTRDrecPoint *) p)->GetDetector(); | |
604 | ||
605 | Float_t global[3]; | |
606 | Float_t local[3]; | |
6f1e466d | 607 | local[0] = ((AliTRDrecPoint *) p)->GetLocalRow(); |
608 | local[1] = ((AliTRDrecPoint *) p)->GetLocalCol(); | |
609 | local[2] = ((AliTRDrecPoint *) p)->GetLocalTime(); | |
f7336fa3 | 610 | |
611 | if (Local2Global(detector,local,global)) { | |
612 | pos.SetX(global[0]); | |
613 | pos.SetY(global[1]); | |
614 | pos.SetZ(global[2]); | |
615 | } | |
616 | else { | |
617 | pos.SetX(0.0); | |
618 | pos.SetY(0.0); | |
619 | pos.SetZ(0.0); | |
620 | } | |
621 | ||
622 | } |