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17b26de4 | 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 | ||
88cb7938 | 16 | /* $Id$ */ |
17b26de4 | 17 | |
18 | /////////////////////////////////////////////////////////////////////////////// | |
19 | // // | |
20 | // TRD parameter class // | |
21 | // // | |
22 | /////////////////////////////////////////////////////////////////////////////// | |
23 | ||
bdbb05bb | 24 | #include <TRandom.h> |
25 | ||
17b26de4 | 26 | #include "AliRun.h" |
27 | #include "AliMagF.h" | |
28 | ||
17b26de4 | 29 | #include "AliTRDparameter.h" |
30 | #include "AliTRDgeometryFull.h" | |
31 | ||
32 | ClassImp(AliTRDparameter) | |
33 | ||
34 | //_____________________________________________________________________________ | |
35 | AliTRDparameter::AliTRDparameter():TNamed() | |
36 | { | |
37 | // | |
38 | // AliTRDparameter default constructor | |
39 | // | |
40 | ||
41 | fGeo = 0; | |
42 | fPRFsmp = 0; | |
43 | fTRFsmp = 0; | |
44 | fCTsmp = 0; | |
45 | fGasGain = 0.0; | |
46 | fNoise = 0.0; | |
47 | fChipGain = 0.0; | |
48 | fADCoutRange = 0.0; | |
49 | fADCinRange = 0.0; | |
50 | fADCthreshold = 0; | |
7e582e9f | 51 | fADCbaseline = 0; |
17b26de4 | 52 | fDiffusionOn = 0; |
53 | fDiffusionT = 0.0; | |
54 | fDiffusionL = 0.0; | |
55 | fElAttachOn = 0; | |
56 | fElAttachProp = 0.0; | |
57 | fExBOn = 0; | |
58 | fOmegaTau = 0.0; | |
59 | fPRFOn = 0; | |
60 | fTRFOn = 0; | |
61 | fCTOn = 0; | |
62 | fTCOn = 0; | |
63 | fDriftVelocity = 0.0; | |
64 | fPadCoupling = 0.0; | |
65 | fTimeCoupling = 0.0; | |
66 | fTimeBinWidth = 0.0; | |
67 | fField = 0.0; | |
68 | fTiltingAngle = 0.0; | |
69 | fPRFbin = 0; | |
70 | fPRFlo = 0.0; | |
71 | fPRFhi = 0.0; | |
72 | fPRFwid = 0.0; | |
73 | fPRFpad = 0; | |
74 | fTRFbin = 0; | |
75 | fTRFlo = 0.0; | |
76 | fTRFhi = 0.0; | |
77 | fTRFwid = 0.0; | |
78 | fTCnexp = 0; | |
79 | ||
80 | fLUTOn = 0; | |
81 | fLUT = 0; | |
82 | fClusMaxThresh = 0; | |
83 | fClusSigThresh = 0; | |
84 | ||
a328fff9 | 85 | fTimeStructOn = 0; |
86 | fTimeStruct = 0; | |
a328fff9 | 87 | fAnodeWireOffset = 0.0; |
88 | ||
17b26de4 | 89 | } |
90 | ||
91 | //_____________________________________________________________________________ | |
92 | AliTRDparameter::AliTRDparameter(const Text_t *name, const Text_t *title) | |
93 | :TNamed(name,title) | |
94 | { | |
95 | // | |
96 | // AliTRDparameter constructor | |
97 | // | |
98 | ||
99 | fGeo = new AliTRDgeometryFull(); | |
67689223 | 100 | fPRFsmp = 0; |
101 | fTRFsmp = 0; | |
102 | fCTsmp = 0; | |
103 | fGasGain = 0.0; | |
104 | fNoise = 0.0; | |
105 | fChipGain = 0.0; | |
106 | fADCoutRange = 0.0; | |
107 | fADCinRange = 0.0; | |
108 | fADCthreshold = 0; | |
7e582e9f | 109 | fADCbaseline = 0; |
67689223 | 110 | fDiffusionOn = 0; |
111 | fDiffusionT = 0.0; | |
112 | fDiffusionL = 0.0; | |
113 | fElAttachOn = 0; | |
114 | fElAttachProp = 0.0; | |
115 | fExBOn = 0; | |
116 | fOmegaTau = 0.0; | |
117 | fPRFOn = 0; | |
118 | fTRFOn = 0; | |
119 | fCTOn = 0; | |
120 | fTCOn = 0; | |
121 | fDriftVelocity = 0.0; | |
122 | fPadCoupling = 0.0; | |
123 | fTimeCoupling = 0.0; | |
124 | fTimeBinWidth = 0.0; | |
125 | fField = 0.0; | |
126 | fTiltingAngle = 0.0; | |
127 | fPRFbin = 0; | |
128 | fPRFlo = 0.0; | |
129 | fPRFhi = 0.0; | |
130 | fPRFwid = 0.0; | |
131 | fPRFpad = 0; | |
132 | fTRFbin = 0; | |
133 | fTRFlo = 0.0; | |
134 | fTRFhi = 0.0; | |
135 | fTRFwid = 0.0; | |
136 | fTCnexp = 0; | |
137 | ||
138 | fLUTOn = 0; | |
139 | fLUT = 0; | |
140 | fClusMaxThresh = 0; | |
141 | fClusSigThresh = 0; | |
17b26de4 | 142 | |
a328fff9 | 143 | fTimeStructOn = 0; |
144 | fTimeStruct = 0; | |
a328fff9 | 145 | fAnodeWireOffset = 0.0; |
146 | ||
17b26de4 | 147 | Init(); |
148 | ||
149 | } | |
150 | ||
151 | ||
152 | //_____________________________________________________________________________ | |
73ae7b59 | 153 | AliTRDparameter::AliTRDparameter(const AliTRDparameter &p):TNamed(p) |
17b26de4 | 154 | { |
155 | // | |
156 | // AliTRDparameter copy constructor | |
157 | // | |
158 | ||
159 | ((AliTRDparameter &) p).Copy(*this); | |
160 | ||
161 | } | |
162 | ||
163 | ///_____________________________________________________________________________ | |
164 | AliTRDparameter::~AliTRDparameter() | |
165 | { | |
166 | // | |
167 | // AliTRDparameter destructor | |
168 | // | |
169 | ||
170 | if (fTRFsmp) { | |
171 | delete [] fTRFsmp; | |
172 | fTRFsmp = 0; | |
173 | } | |
174 | ||
175 | if (fPRFsmp) { | |
176 | delete [] fPRFsmp; | |
177 | fPRFsmp = 0; | |
178 | } | |
179 | ||
180 | if (fCTsmp) { | |
181 | delete [] fCTsmp; | |
182 | fCTsmp = 0; | |
183 | } | |
184 | ||
185 | if (fLUT) { | |
186 | delete [] fLUT; | |
187 | fLUT = 0; | |
188 | } | |
189 | ||
190 | if (fGeo) { | |
191 | delete fGeo; | |
192 | fGeo = 0; | |
193 | } | |
194 | ||
a328fff9 | 195 | if (fTimeStruct) { |
196 | delete [] fTimeStruct; | |
197 | fTimeStruct = 0; | |
198 | } | |
199 | ||
17b26de4 | 200 | } |
201 | ||
202 | //_____________________________________________________________________________ | |
203 | AliTRDparameter &AliTRDparameter::operator=(const AliTRDparameter &p) | |
204 | { | |
205 | // | |
206 | // Assignment operator | |
207 | // | |
208 | ||
209 | if (this != &p) ((AliTRDparameter &) p).Copy(*this); | |
210 | return *this; | |
211 | ||
212 | } | |
213 | ||
214 | //_____________________________________________________________________________ | |
215 | void AliTRDparameter::Copy(TObject &p) | |
216 | { | |
217 | // | |
218 | // Copy function | |
219 | // | |
220 | ||
221 | Int_t iBin; | |
222 | ||
223 | ((AliTRDparameter &) p).fGasGain = fGasGain; | |
224 | ((AliTRDparameter &) p).fNoise = fNoise; | |
225 | ((AliTRDparameter &) p).fChipGain = fChipGain; | |
226 | ((AliTRDparameter &) p).fADCoutRange = fADCoutRange; | |
227 | ((AliTRDparameter &) p).fADCinRange = fADCinRange; | |
228 | ((AliTRDparameter &) p).fADCthreshold = fADCthreshold; | |
7e582e9f | 229 | ((AliTRDparameter &) p).fADCbaseline = fADCbaseline; |
17b26de4 | 230 | ((AliTRDparameter &) p).fDiffusionOn = fDiffusionOn; |
231 | ((AliTRDparameter &) p).fDiffusionT = fDiffusionT; | |
232 | ((AliTRDparameter &) p).fDiffusionL = fDiffusionL; | |
233 | ((AliTRDparameter &) p).fElAttachOn = fElAttachOn; | |
234 | ((AliTRDparameter &) p).fElAttachProp = fElAttachProp; | |
235 | ((AliTRDparameter &) p).fExBOn = fExBOn; | |
236 | ((AliTRDparameter &) p).fOmegaTau = fOmegaTau; | |
237 | ((AliTRDparameter &) p).fLorentzFactor = fLorentzFactor; | |
238 | ((AliTRDparameter &) p).fDriftVelocity = fDriftVelocity; | |
239 | ((AliTRDparameter &) p).fPadCoupling = fPadCoupling; | |
240 | ((AliTRDparameter &) p).fTimeCoupling = fTimeCoupling; | |
241 | ((AliTRDparameter &) p).fTimeBinWidth = fTimeBinWidth; | |
242 | ((AliTRDparameter &) p).fField = fField; | |
243 | ((AliTRDparameter &) p).fPRFOn = fPRFOn; | |
244 | ((AliTRDparameter &) p).fTRFOn = fTRFOn; | |
245 | ((AliTRDparameter &) p).fCTOn = fCTOn; | |
246 | ((AliTRDparameter &) p).fTCOn = fTCOn; | |
247 | ((AliTRDparameter &) p).fTiltingAngle = fTiltingAngle; | |
248 | ((AliTRDparameter &) p).fPRFbin = fPRFbin; | |
249 | ((AliTRDparameter &) p).fPRFlo = fPRFlo; | |
250 | ((AliTRDparameter &) p).fPRFhi = fPRFhi; | |
251 | ((AliTRDparameter &) p).fPRFwid = fPRFwid; | |
252 | ((AliTRDparameter &) p).fPRFpad = fPRFpad; | |
253 | if (((AliTRDparameter &) p).fPRFsmp) delete [] ((AliTRDparameter &) p).fPRFsmp; | |
254 | ((AliTRDparameter &) p).fPRFsmp = new Float_t[fPRFbin]; | |
255 | for (iBin = 0; iBin < fPRFbin; iBin++) { | |
256 | ((AliTRDparameter &) p).fPRFsmp[iBin] = fPRFsmp[iBin]; | |
257 | } | |
258 | ((AliTRDparameter &) p).fTRFbin = fTRFbin; | |
259 | ((AliTRDparameter &) p).fTRFlo = fTRFlo; | |
260 | ((AliTRDparameter &) p).fTRFhi = fTRFhi; | |
261 | ((AliTRDparameter &) p).fTRFwid = fTRFwid; | |
262 | if (((AliTRDparameter &) p).fTRFsmp) delete [] ((AliTRDparameter &) p).fTRFsmp; | |
263 | ((AliTRDparameter &) p).fTRFsmp = new Float_t[fTRFbin]; | |
264 | for (iBin = 0; iBin < fTRFbin; iBin++) { | |
265 | ((AliTRDparameter &) p).fTRFsmp[iBin] = fTRFsmp[iBin]; | |
266 | } | |
267 | if (((AliTRDparameter &) p).fCTsmp) delete [] ((AliTRDparameter &) p).fCTsmp; | |
268 | ((AliTRDparameter &) p).fCTsmp = new Float_t[fTRFbin]; | |
269 | for (iBin = 0; iBin < fTRFbin; iBin++) { | |
270 | ((AliTRDparameter &) p).fCTsmp[iBin] = fCTsmp[iBin]; | |
271 | } | |
272 | ((AliTRDparameter &) p).fTCnexp = fTCnexp; | |
273 | ||
274 | ((AliTRDparameter &) p).fLUTOn = fLUTOn; | |
275 | ((AliTRDparameter &) p).fLUTbin = fLUTbin; | |
276 | if (((AliTRDparameter &) p).fLUT) delete [] ((AliTRDparameter &) p).fLUT; | |
277 | ((AliTRDparameter &) p).fLUT = new Float_t[fLUTbin]; | |
278 | for (iBin = 0; iBin < fLUTbin; iBin++) { | |
279 | ((AliTRDparameter &) p).fLUT[iBin] = fLUT[iBin]; | |
280 | } | |
281 | ((AliTRDparameter &) p).fClusMaxThresh = fClusMaxThresh; | |
282 | ((AliTRDparameter &) p).fClusSigThresh = fClusSigThresh; | |
283 | ||
a328fff9 | 284 | ((AliTRDparameter &) p).fAnodeWireOffset = fAnodeWireOffset; |
a328fff9 | 285 | ((AliTRDparameter &) p).fTimeStructOn = fTimeStructOn; |
286 | if (((AliTRDparameter &) p).fTimeStruct) | |
287 | delete [] ((AliTRDparameter &) p).fTimeStruct; | |
682619b9 | 288 | ((AliTRDparameter &) p).fTimeStruct = new Float_t[38*11]; |
289 | for (Int_t i = 0; i < 38*11; i++) { | |
a328fff9 | 290 | ((AliTRDparameter &) p).fTimeStruct[i] = fTimeStruct[i]; |
291 | } | |
292 | ||
17b26de4 | 293 | } |
294 | ||
295 | //_____________________________________________________________________________ | |
296 | void AliTRDparameter::Init() | |
297 | { | |
298 | // | |
299 | // Initializes the parameter | |
300 | // | |
301 | // The maximum number of pads | |
302 | // and the position of pad 0,0,0 | |
303 | // | |
304 | // chambers seen from the top: | |
305 | // +----------------------------+ | |
306 | // | | | |
307 | // | | ^ | |
308 | // | | rphi| | |
309 | // | | | | |
310 | // |0 | | | |
311 | // +----------------------------+ +------> | |
312 | // z | |
313 | // chambers seen from the side: ^ | |
314 | // +----------------------------+ drift| | |
315 | // |0 | | | |
316 | // | | | | |
317 | // +----------------------------+ +------> | |
318 | // z | |
319 | // | |
320 | // IMPORTANT: time bin 0 is now the first one in the drift region | |
321 | // closest to the readout !!! | |
322 | // | |
323 | ||
324 | // | |
325 | // ---------------------------------------------------------------------------- | |
326 | // The pad definition | |
327 | // ---------------------------------------------------------------------------- | |
328 | // | |
329 | ||
330 | // The pad size in column direction (rphi-direction) | |
a328fff9 | 331 | //SetColPadSize(0,0.65); |
332 | //SetColPadSize(1,0.68); | |
333 | //SetColPadSize(2,0.71); | |
334 | //SetColPadSize(3,0.74); | |
335 | //SetColPadSize(4,0.77); | |
336 | //SetColPadSize(5,0.80); | |
337 | ||
338 | SetColPadSize(0,0.664); | |
339 | SetColPadSize(1,0.695); | |
340 | SetColPadSize(2,0.726); | |
341 | SetColPadSize(3,0.756); | |
342 | SetColPadSize(4,0.788); | |
343 | SetColPadSize(5,0.818); | |
73ae7b59 | 344 | |
17b26de4 | 345 | // The pad row (z-direction) |
346 | SetNRowPad(); | |
347 | ||
348 | // The number of time bins. Default is 100 ns timbin size | |
81a6930e | 349 | SetNTimeBin(18); |
17b26de4 | 350 | |
351 | // Additional time bins before and after the drift region. | |
352 | // Default is to only sample the drift region | |
353 | SetExpandTimeBin(0,0); | |
354 | ||
355 | // | |
356 | // ---------------------------------------------------------------------------- | |
357 | // The digitization parameter | |
358 | // ---------------------------------------------------------------------------- | |
359 | // | |
360 | ||
361 | // The default parameter for the digitization | |
a328fff9 | 362 | fGasGain = 4000.; |
17b26de4 | 363 | fChipGain = 12.4; |
364 | fNoise = 1000.; | |
365 | fADCoutRange = 1023.; // 10-bit ADC | |
7e582e9f | 366 | fADCinRange = 2000.; // 2V input range |
17b26de4 | 367 | fADCthreshold = 1; |
7e582e9f | 368 | fADCbaseline = 0; |
17b26de4 | 369 | |
370 | // The drift velocity (cm / mus) | |
81a6930e | 371 | fDriftVelocity = 1.62; |
17b26de4 | 372 | |
373 | // Diffusion on | |
374 | fDiffusionOn = 1; | |
375 | ||
376 | // E x B effects | |
7e582e9f | 377 | fExBOn = 1; |
17b26de4 | 378 | |
379 | // Propability for electron attachment | |
380 | fElAttachOn = 0; | |
381 | fElAttachProp = 0.0; | |
382 | ||
383 | // The pad response function | |
384 | fPRFOn = 1; | |
385 | ||
386 | // The time response function | |
387 | fTRFOn = 1; | |
388 | ||
389 | // The cross talk | |
7e582e9f | 390 | fCTOn = 1; |
17b26de4 | 391 | |
392 | // The tail cancelation | |
393 | fTCOn = 1; | |
394 | ||
395 | // The number of exponentials | |
81a6930e | 396 | fTCnexp = 1; |
17b26de4 | 397 | |
b258a7c7 | 398 | // The pad coupling factor |
399 | //fPadCoupling = 0.3; | |
682619b9 | 400 | // Use 0.46 instead which reproduces better the test beam |
b258a7c7 | 401 | // data, even tough it is not understood why. |
682619b9 | 402 | fPadCoupling = 0.46; |
17b26de4 | 403 | |
404 | // The time coupling factor (same number as for the TPC) | |
405 | fTimeCoupling = 0.4; | |
406 | ||
a328fff9 | 407 | // Drift time non-isochronity on |
408 | fTimeStructOn = 1; | |
409 | ||
a328fff9 | 410 | // Distance of first Anode wire from first pad edge |
411 | fAnodeWireOffset = 0.25; | |
412 | ||
17b26de4 | 413 | // The tilting angle for the readout pads |
73ae7b59 | 414 | SetTiltingAngle(2.0); |
17b26de4 | 415 | |
416 | // The magnetic field strength in Tesla | |
81a6930e | 417 | Double_t x[3] = { 0.0, 0.0, 0.0 }; |
418 | Double_t b[3]; | |
419 | gAlice->Field(x,b); // b[] is in kilo Gauss | |
420 | fField = b[2] * 0.1; // Tesla | |
17b26de4 | 421 | |
422 | // | |
423 | // ---------------------------------------------------------------------------- | |
424 | // The clusterization parameter | |
425 | // ---------------------------------------------------------------------------- | |
426 | // | |
427 | ||
428 | // The default parameter for the clustering | |
429 | fClusMaxThresh = 3; | |
430 | fClusSigThresh = 1; | |
431 | ||
432 | // Use the LUT | |
433 | fLUTOn = 1; | |
434 | ||
435 | ReInit(); | |
436 | ||
437 | } | |
438 | ||
439 | //_____________________________________________________________________________ | |
440 | void AliTRDparameter::ReInit() | |
441 | { | |
442 | // | |
443 | // Reinitializes the parameter class after a change | |
444 | // | |
445 | ||
a328fff9 | 446 | // Create the sampled timing structure |
447 | SampleTimeStruct(); | |
448 | ||
17b26de4 | 449 | // Calculate the time bin width in ns |
450 | fTimeBinWidth = fTimeBinSize / fDriftVelocity * 1000.0; | |
451 | ||
452 | // The range and the binwidth for the sampled TRF | |
453 | fTRFbin = 100; | |
454 | // Start 0.2 mus before the signal | |
455 | fTRFlo = -0.2 * fDriftVelocity; | |
456 | // End the maximum driftlength after the signal | |
457 | fTRFhi = AliTRDgeometry::DrThick() | |
458 | + fTimeAfter * fTimeBinSize; | |
459 | fTRFwid = (fTRFhi - fTRFlo) / ((Float_t) fTRFbin); | |
460 | ||
461 | // Transverse and longitudinal diffusion coefficients (Xe/CO2) | |
462 | fDiffusionT = GetDiffusionT(fDriftVelocity,fField); | |
463 | fDiffusionL = GetDiffusionL(fDriftVelocity,fField); | |
464 | ||
465 | // omega * tau.= tan(Lorentz-angle) | |
466 | fOmegaTau = GetOmegaTau(fDriftVelocity,fField); | |
467 | ||
468 | // The Lorentz factor | |
469 | if (fExBOn) { | |
470 | fLorentzFactor = 1.0 / (1.0 + fOmegaTau*fOmegaTau); | |
471 | } | |
472 | else { | |
473 | fLorentzFactor = 1.0; | |
474 | } | |
475 | ||
476 | // Create the sampled PRF | |
477 | SamplePRF(); | |
478 | ||
479 | // Create the sampled TRF | |
480 | SampleTRF(); | |
481 | ||
482 | // Create the LUT | |
483 | FillLUT(); | |
484 | ||
485 | } | |
486 | ||
487 | //_____________________________________________________________________________ | |
afc51ac2 | 488 | void AliTRDparameter::SetNRowPad(Int_t p, Int_t c, Int_t npad) |
17b26de4 | 489 | { |
490 | // | |
491 | // Redefines the number of pads in raw direction for | |
492 | // a given plane and chamber number | |
493 | // | |
494 | ||
495 | for (Int_t isect = 0; isect < AliTRDgeometry::Nsect(); isect++) { | |
496 | ||
497 | fRowMax[p][c][isect] = npad; | |
498 | ||
499 | fRowPadSize[p][c][isect] = (fGeo->GetChamberLength(p,c) | |
500 | - 2.* AliTRDgeometry::RpadW()) | |
501 | / ((Float_t) npad); | |
502 | ||
503 | } | |
504 | ||
505 | } | |
506 | ||
507 | //_____________________________________________________________________________ | |
508 | void AliTRDparameter::SetNRowPad() | |
509 | { | |
510 | // | |
511 | // Defines the number of pads in row direction | |
512 | // | |
513 | ||
514 | Int_t isect; | |
515 | Int_t icham; | |
516 | Int_t iplan; | |
517 | ||
518 | Int_t rowMax[kNplan][kNcham] = { { 16, 16, 12, 16, 16 } | |
519 | , { 16, 16, 12, 16, 16 } | |
520 | , { 16, 16, 12, 16, 16 } | |
521 | , { 16, 16, 12, 16, 16 } | |
ad973dd4 | 522 | , { 16, 16, 12, 16, 16 } |
523 | , { 16, 16, 12, 16, 16 } }; | |
17b26de4 | 524 | |
525 | Float_t rpadW = AliTRDgeometry::RpadW(); | |
526 | ||
527 | for (isect = 0; isect < kNsect; isect++) { | |
528 | for (icham = 0; icham < kNcham; icham++) { | |
529 | for (iplan = 0; iplan < kNplan; iplan++) { | |
530 | ||
531 | fRowMax[iplan][icham][isect] = rowMax[iplan][icham]; | |
532 | ||
533 | fRowPadSize[iplan][icham][isect] = (fGeo->GetChamberLength(iplan,icham) | |
534 | - 2.*rpadW) | |
535 | / ((Float_t) rowMax[iplan][icham]); | |
536 | ||
537 | Float_t row0 = rpadW - fGeo->GetChamberLength(iplan,0) | |
538 | - fGeo->GetChamberLength(iplan,1) | |
539 | - fGeo->GetChamberLength(iplan,2) / 2.; | |
540 | for (Int_t ic = 0; ic < icham; ic++) { | |
4bd34b78 | 541 | row0 += fGeo->GetChamberLength(iplan,ic); |
17b26de4 | 542 | } |
81a6930e | 543 | |
544 | fRow0[iplan][icham][isect] = row0; | |
545 | // For new chamber ordering | |
546 | //fRow0[iplan][kNcham-icham-1][isect] = row0; | |
17b26de4 | 547 | |
548 | } | |
549 | } | |
550 | } | |
551 | ||
552 | } | |
553 | ||
554 | //_____________________________________________________________________________ | |
afc51ac2 | 555 | void AliTRDparameter::SetColPadSize(Int_t p, Float_t s) |
17b26de4 | 556 | { |
557 | // | |
558 | // Redefines the pad size in column direction | |
559 | // | |
560 | ||
561 | Float_t cpadW = AliTRDgeometry::CpadW(); | |
562 | ||
563 | fColPadSize[p] = s; | |
564 | fCol0[p] = - fGeo->GetChamberWidth(p)/2. + cpadW; | |
565 | fColMax[p] = ((Int_t) ((fGeo->GetChamberWidth(p) - 2.*cpadW) / s)); | |
566 | ||
567 | } | |
568 | ||
569 | //_____________________________________________________________________________ | |
afc51ac2 | 570 | void AliTRDparameter::SetNTimeBin(Int_t nbin) |
17b26de4 | 571 | { |
572 | // | |
573 | // Redefines the number of time bins in the drift region. | |
574 | // The time bin width is defined by the length of the | |
575 | // drift region divided by <nbin>. | |
576 | // | |
577 | ||
578 | fTimeMax = nbin; | |
579 | fTimeBinSize = AliTRDgeometry::DrThick() / ((Float_t) fTimeMax); | |
580 | for (Int_t iplan = 0; iplan < AliTRDgeometry::Nplan(); iplan++) { | |
581 | fTime0[iplan] = AliTRDgeometry::Rmin() | |
582 | + AliTRDgeometry::CraHght() | |
583 | + AliTRDgeometry::CdrHght() | |
584 | + iplan * (AliTRDgeometry::Cheight() | |
585 | + AliTRDgeometry::Cspace()); | |
586 | } | |
587 | ||
588 | } | |
589 | ||
590 | //_____________________________________________________________________________ | |
0a29d0f1 | 591 | Float_t AliTRDparameter::CrossTalk(Float_t time) const |
17b26de4 | 592 | { |
593 | // | |
594 | // Applies the pad-pad capacitive cross talk | |
595 | // | |
596 | ||
597 | Int_t iBin = ((Int_t) ((time - fTRFlo) / fTRFwid)); | |
598 | if ((iBin >= 0) && (iBin < fTRFbin)) { | |
599 | return fCTsmp[iBin]; | |
600 | } | |
601 | else { | |
602 | return 0.0; | |
603 | } | |
604 | ||
605 | } | |
606 | ||
a328fff9 | 607 | //_____________________________________________________________________________ |
682619b9 | 608 | Int_t AliTRDparameter::TimeStruct(Float_t dist, Float_t z, Float_t *xyz) const |
a328fff9 | 609 | { |
610 | // | |
611 | // Applies the time structure of the drift cells (by C.Lippmann). | |
612 | // The drift time of electrons to the anode wires depends on the | |
613 | // distance to the wire (z) and on the position in the drift region. | |
682619b9 | 614 | // Here we omnly reposition each electron, since the drift velocity |
615 | // in the digitisation is still constant. If the electrons at a given | |
616 | // position has a long drift time, it is just moved further away from | |
617 | // the anode wire plane. | |
618 | // | |
619 | // input : | |
620 | // dist = radial distance from anode wire plane [cm] | |
621 | // z = distance from anode wire (parallel to cathode planes) [cm] | |
a328fff9 | 622 | // |
623 | ||
a328fff9 | 624 | |
682619b9 | 625 | // indices: |
626 | Int_t r1 = (Int_t)(10*dist); | |
a328fff9 | 627 | Int_t r2 = r1+1; |
682619b9 | 628 | Int_t z1 = (Int_t)(100*z/2.5); |
a328fff9 | 629 | Int_t z2 = z1+1; |
630 | ||
682619b9 | 631 | if (r1<0 || r1>37 || z1<0 || z1>10) { |
a328fff9 | 632 | printf("<AliTRDparameter::TimeStruct> Warning. Indices out of range: "); |
682619b9 | 633 | printf("dist=%.2f, z=%.2f, r1=%d, z1=%d\n",dist,z,r1,z1); |
a328fff9 | 634 | return kFALSE; |
a328fff9 | 635 | } |
636 | ||
637 | // 2D Interpolation: | |
682619b9 | 638 | Float_t y11 = fTimeStruct[r1+38*z1]; |
639 | Float_t y22 = (r2 <= 37 && z2 <= 10) ? fTimeStruct[r2+38*z2] : fTimeStruct[37+38*10]; | |
640 | Float_t y12 = (z2 <= 10) ? fTimeStruct[r1+38*z2] : fTimeStruct[r1+38*10]; | |
641 | Float_t y21 = (r2 <= 37) ? fTimeStruct[r2+38*z1] : fTimeStruct[37+38*z1]; | |
642 | ||
643 | Float_t y1 = (y21-y11)*10*dist + y11 - (y21-y11)*r1; | |
644 | Float_t y2 = (y22-y12)*10*dist + y12 - (y22-y12)*r1; | |
645 | ||
646 | Float_t AmTh = AliTRDgeometry::AmThick()/2.0; | |
647 | ||
648 | // dist now is the drift distance to anode wires (negative if electrons are | |
649 | // between anode wire plane and cathode pad plane) | |
650 | dist -= AmTh; | |
651 | ||
652 | // Get the drift time from the interpolation: | |
653 | Float_t tdrift = | |
654 | ( TMath::Abs(dist)>0.005 || z>0.005 ) ? tdrift = (y2-y1)*100*z/2.5+y1-(y2-y1)*z1 : 0.0; | |
655 | ||
656 | // We move electrons further away from the anode wire plane, if the drift time is | |
657 | // larger than the one expected for that distance for a constant drift velocity. We | |
658 | // increase (decrease) the drift distance by a factor | |
659 | // | |
660 | // c = t(x0)*vd/x0 , | |
661 | // | |
662 | // where x0 is the distance from the anode wire plane (dist), vd is the constant | |
663 | // drift velocity (fDriftVelocity) and t(x0) is the real drift time (tdrift, as | |
664 | // calculated with GARFIELD). | |
665 | // | |
666 | // The factor is negative for electrons between anode wire plane and cathode pads. | |
667 | // | |
668 | // The new position of the electron is then given by: t(x0)*vd: | |
669 | ||
670 | Float_t zdrift = tdrift * fDriftVelocity; | |
671 | if (dist < 0.) zdrift *= -1.; | |
672 | ||
673 | xyz[0] = xyz[0] + dist - zdrift; | |
a328fff9 | 674 | xyz[1] = xyz[1]; |
675 | xyz[2] = xyz[2]; | |
676 | ||
677 | return 1; | |
678 | ||
679 | } | |
680 | ||
17b26de4 | 681 | //_____________________________________________________________________________ |
682 | Int_t AliTRDparameter::Diffusion(Float_t driftlength, Float_t *xyz) | |
683 | { | |
684 | // | |
685 | // Applies the diffusion smearing to the position of a single electron | |
686 | // | |
687 | ||
688 | Float_t driftSqrt = TMath::Sqrt(driftlength); | |
689 | Float_t sigmaT = driftSqrt * fDiffusionT; | |
690 | Float_t sigmaL = driftSqrt * fDiffusionL; | |
691 | xyz[0] = gRandom->Gaus(xyz[0], sigmaL * fLorentzFactor); | |
692 | xyz[1] = gRandom->Gaus(xyz[1], sigmaT * fLorentzFactor); | |
693 | xyz[2] = gRandom->Gaus(xyz[2], sigmaT); | |
694 | ||
695 | return 1; | |
696 | ||
697 | } | |
698 | ||
699 | //_____________________________________________________________________________ | |
0a29d0f1 | 700 | Int_t AliTRDparameter::ExB(Float_t driftlength, Float_t *xyz) const |
17b26de4 | 701 | { |
702 | // | |
703 | // Applies E x B effects to the position of a single electron | |
704 | // | |
705 | ||
706 | xyz[0] = xyz[0]; | |
707 | xyz[1] = xyz[1] + fOmegaTau * driftlength; | |
708 | xyz[2] = xyz[2]; | |
709 | ||
710 | return 1; | |
711 | ||
712 | } | |
713 | ||
714 | //_____________________________________________________________________________ | |
715 | Int_t AliTRDparameter::PadResponse(Float_t signal, Float_t dist | |
0a29d0f1 | 716 | , Int_t plane, Float_t *pad) const |
17b26de4 | 717 | { |
718 | // | |
719 | // Applies the pad response | |
720 | // | |
721 | ||
722 | const Int_t kNplan = AliTRDgeometry::kNplan; | |
723 | ||
724 | Int_t iBin = ((Int_t) (( - dist - fPRFlo) / fPRFwid)); | |
725 | Int_t iOff = plane * fPRFbin; | |
726 | ||
727 | Int_t iBin0 = iBin - fPRFpad + iOff; | |
728 | Int_t iBin1 = iBin + iOff; | |
729 | Int_t iBin2 = iBin + fPRFpad + iOff; | |
730 | ||
731 | pad[0] = 0.0; | |
732 | pad[1] = 0.0; | |
733 | pad[2] = 0.0; | |
734 | if ((iBin1 >= 0) && (iBin1 < (fPRFbin*kNplan))) { | |
735 | ||
736 | if (iBin0 >= 0) { | |
737 | pad[0] = signal * fPRFsmp[iBin0]; | |
738 | } | |
739 | pad[1] = signal * fPRFsmp[iBin1]; | |
740 | if (iBin2 < (fPRFbin*kNplan)) { | |
741 | pad[2] = signal * fPRFsmp[iBin2]; | |
742 | } | |
743 | ||
744 | return 1; | |
745 | ||
746 | } | |
747 | else { | |
748 | ||
749 | return 0; | |
750 | ||
751 | } | |
752 | ||
753 | } | |
754 | ||
755 | //_____________________________________________________________________________ | |
0a29d0f1 | 756 | Float_t AliTRDparameter::TimeResponse(Float_t time) const |
17b26de4 | 757 | { |
758 | // | |
759 | // Applies the preamp shaper time response | |
760 | // | |
761 | ||
81a6930e | 762 | Int_t iBin = ((Int_t) ((time) / fTRFwid)); |
763 | //Int_t iBin = ((Int_t) ((time - fTRFlo) / fTRFwid)); | |
17b26de4 | 764 | if ((iBin >= 0) && (iBin < fTRFbin)) { |
765 | return fTRFsmp[iBin]; | |
766 | } | |
767 | else { | |
768 | return 0.0; | |
769 | } | |
770 | ||
771 | } | |
772 | ||
773 | //_____________________________________________________________________________ | |
774 | Float_t AliTRDparameter::Col0Tilted(Float_t col0, Float_t rowOffset | |
775 | , Int_t plane) | |
776 | { | |
777 | // | |
778 | // Calculates col0 for tilted pads | |
779 | // | |
780 | ||
781 | Float_t diff = fTiltingAngle * rowOffset; | |
a328fff9 | 782 | return (col0 + TMath::Power(-1.0,(plane+1)) * diff); |
17b26de4 | 783 | |
784 | } | |
785 | ||
786 | //_____________________________________________________________________________ | |
787 | void AliTRDparameter::SampleTRF() | |
788 | { | |
789 | // | |
790 | // Samples the time response function | |
791 | // | |
792 | // New TRF from Venelin Angelov, simulated with CADENCE | |
793 | // Pad-ground capacitance = 25 pF | |
794 | // Pad-pad cross talk capacitance = 6 pF | |
795 | // | |
796 | ||
797 | Int_t ipos1; | |
798 | Int_t ipos2; | |
799 | Float_t diff; | |
800 | ||
801 | const Int_t kNpasa = 252; | |
802 | ||
803 | Float_t time[kNpasa] = { -0.220000, -0.210000, -0.200000, -0.190000 | |
804 | , -0.180000, -0.170000, -0.160000, -0.150000 | |
805 | , -0.140000, -0.130000, -0.120000, -0.110000 | |
806 | , -0.100000, -0.090000, -0.080000, -0.070000 | |
807 | , -0.060000, -0.050000, -0.040000, -0.030000 | |
808 | , -0.020000, -0.010000, -0.000000, 0.010000 | |
809 | , 0.020000, 0.030000, 0.040000, 0.050000 | |
810 | , 0.060000, 0.070000, 0.080000, 0.090000 | |
811 | , 0.100000, 0.110000, 0.120000, 0.130000 | |
812 | , 0.140000, 0.150000, 0.160000, 0.170000 | |
813 | , 0.180000, 0.190000, 0.200000, 0.210000 | |
814 | , 0.220000, 0.230000, 0.240000, 0.250000 | |
815 | , 0.260000, 0.270000, 0.280000, 0.290000 | |
816 | , 0.300000, 0.310000, 0.320000, 0.330000 | |
817 | , 0.340000, 0.350000, 0.360000, 0.370000 | |
818 | , 0.380000, 0.390000, 0.400000, 0.410000 | |
819 | , 0.420000, 0.430000, 0.440000, 0.450000 | |
820 | , 0.460000, 0.470000, 0.480000, 0.490000 | |
821 | , 0.500000, 0.510000, 0.520000, 0.530000 | |
822 | , 0.540000, 0.550000, 0.560000, 0.570000 | |
823 | , 0.580000, 0.590000, 0.600000, 0.610000 | |
824 | , 0.620000, 0.630000, 0.640000, 0.650000 | |
825 | , 0.660000, 0.670000, 0.680000, 0.690000 | |
826 | , 0.700000, 0.710000, 0.720000, 0.730000 | |
827 | , 0.740000, 0.750000, 0.760000, 0.770000 | |
828 | , 0.780000, 0.790000, 0.800000, 0.810000 | |
829 | , 0.820000, 0.830000, 0.840000, 0.850000 | |
830 | , 0.860000, 0.870000, 0.880000, 0.890000 | |
831 | , 0.900000, 0.910000, 0.920000, 0.930000 | |
832 | , 0.940000, 0.950000, 0.960000, 0.970000 | |
833 | , 0.980000, 0.990000, 1.000000, 1.010000 | |
834 | , 1.020000, 1.030000, 1.040000, 1.050000 | |
835 | , 1.060000, 1.070000, 1.080000, 1.090000 | |
836 | , 1.100000, 1.110000, 1.120000, 1.130000 | |
837 | , 1.140000, 1.150000, 1.160000, 1.170000 | |
838 | , 1.180000, 1.190000, 1.200000, 1.210000 | |
839 | , 1.220000, 1.230000, 1.240000, 1.250000 | |
840 | , 1.260000, 1.270000, 1.280000, 1.290000 | |
841 | , 1.300000, 1.310000, 1.320000, 1.330000 | |
842 | , 1.340000, 1.350000, 1.360000, 1.370000 | |
843 | , 1.380000, 1.390000, 1.400000, 1.410000 | |
844 | , 1.420000, 1.430000, 1.440000, 1.450000 | |
845 | , 1.460000, 1.470000, 1.480000, 1.490000 | |
846 | , 1.500000, 1.510000, 1.520000, 1.530000 | |
847 | , 1.540000, 1.550000, 1.560000, 1.570000 | |
848 | , 1.580000, 1.590000, 1.600000, 1.610000 | |
849 | , 1.620000, 1.630000, 1.640000, 1.650000 | |
850 | , 1.660000, 1.670000, 1.680000, 1.690000 | |
851 | , 1.700000, 1.710000, 1.720000, 1.730000 | |
852 | , 1.740000, 1.750000, 1.760000, 1.770000 | |
853 | , 1.780000, 1.790000, 1.800000, 1.810000 | |
854 | , 1.820000, 1.830000, 1.840000, 1.850000 | |
855 | , 1.860000, 1.870000, 1.880000, 1.890000 | |
856 | , 1.900000, 1.910000, 1.920000, 1.930000 | |
857 | , 1.940000, 1.950000, 1.960000, 1.970000 | |
858 | , 1.980000, 1.990000, 2.000000, 2.010000 | |
859 | , 2.020000, 2.030000, 2.040000, 2.050000 | |
860 | , 2.060000, 2.070000, 2.080000, 2.090000 | |
861 | , 2.100000, 2.110000, 2.120000, 2.130000 | |
862 | , 2.140000, 2.150000, 2.160000, 2.170000 | |
863 | , 2.180000, 2.190000, 2.200000, 2.210000 | |
864 | , 2.220000, 2.230000, 2.240000, 2.250000 | |
865 | , 2.260000, 2.270000, 2.280000, 2.290000 }; | |
866 | ||
867 | Float_t signal[kNpasa] = { 0.000000, 0.000000, 0.000000, 0.000000 | |
868 | , 0.000000, 0.000000, 0.000000, 0.000396 | |
869 | , 0.005096, 0.022877, 0.061891, 0.126614 | |
870 | , 0.215798, 0.324406, 0.444507, 0.566817 | |
871 | , 0.683465, 0.787089, 0.873159, 0.937146 | |
872 | , 0.979049, 0.999434, 1.000000, 0.983579 | |
873 | , 0.954134, 0.913364, 0.866365, 0.813703 | |
874 | , 0.759910, 0.706116, 0.653454, 0.603624 | |
875 | , 0.556625, 0.514156, 0.475085, 0.439977 | |
876 | , 0.408834, 0.380578, 0.355549, 0.333352 | |
877 | , 0.313647, 0.296093, 0.280351, 0.266195 | |
878 | , 0.253397, 0.241789, 0.231257, 0.221574 | |
879 | , 0.212627, 0.204417, 0.196772, 0.189581 | |
880 | , 0.182956, 0.176784, 0.171008, 0.165515 | |
881 | , 0.160419, 0.155606, 0.151076, 0.146716 | |
882 | , 0.142639, 0.138845, 0.135221, 0.131767 | |
883 | , 0.128482, 0.125368, 0.122424, 0.119592 | |
884 | , 0.116931, 0.114326, 0.111891, 0.109513 | |
885 | , 0.107248, 0.105096, 0.103058, 0.101019 | |
886 | , 0.099151, 0.097282, 0.095527, 0.093715 | |
887 | , 0.092129, 0.090544, 0.088958, 0.087429 | |
888 | , 0.086014, 0.084598, 0.083239, 0.081880 | |
889 | , 0.080634, 0.079388, 0.078143, 0.077010 | |
890 | , 0.075878, 0.074745, 0.073669, 0.072593 | |
891 | , 0.071574, 0.070612, 0.069649, 0.068686 | |
892 | , 0.067780, 0.066874, 0.066025, 0.065176 | |
893 | , 0.064326, 0.063533, 0.062684, 0.061948 | |
894 | , 0.061212, 0.060419, 0.059740, 0.059003 | |
895 | , 0.058324, 0.057644, 0.057022, 0.056342 | |
896 | , 0.055663, 0.055096, 0.054473, 0.053851 | |
897 | , 0.053284, 0.052718, 0.052152, 0.051585 | |
898 | , 0.051019, 0.050566, 0.050000, 0.049490 | |
899 | , 0.048981, 0.048528, 0.048018, 0.047508 | |
900 | , 0.047055, 0.046602, 0.046149, 0.045696 | |
901 | , 0.045300, 0.044904, 0.044451, 0.044054 | |
902 | , 0.043658, 0.043205, 0.042865, 0.042469 | |
903 | , 0.042072, 0.041733, 0.041336, 0.040997 | |
904 | , 0.040657, 0.040260, 0.039921, 0.039581 | |
905 | , 0.039241, 0.038958, 0.038618, 0.038335 | |
906 | , 0.037995, 0.037656, 0.037373, 0.037089 | |
907 | , 0.036806, 0.036467, 0.036183, 0.035900 | |
908 | , 0.035617, 0.035334, 0.035108, 0.034824 | |
909 | , 0.034541, 0.034315, 0.034032, 0.033805 | |
910 | , 0.033522, 0.033296, 0.033069, 0.032786 | |
911 | , 0.032559, 0.032333, 0.032106, 0.031880 | |
912 | , 0.031653, 0.031427, 0.031200, 0.030974 | |
913 | , 0.030804, 0.030578, 0.030351, 0.030125 | |
914 | , 0.029955, 0.029785, 0.029558, 0.029332 | |
915 | , 0.029162, 0.028992, 0.028766, 0.028596 | |
916 | , 0.028426, 0.028199, 0.028086, 0.027860 | |
917 | , 0.027746, 0.027633, 0.027463, 0.027293 | |
918 | , 0.027180, 0.027067, 0.026954, 0.026954 | |
919 | , 0.026840, 0.026727, 0.026727, 0.026614 | |
920 | , 0.026614, 0.026614, 0.026557, 0.026501 | |
921 | , 0.026501, 0.026501, 0.026501, 0.026501 | |
922 | , 0.026501, 0.026501, 0.026501, 0.026387 | |
923 | , 0.026387, 0.026387, 0.026387, 0.026387 | |
924 | , 0.026387, 0.026387, 0.026387, 0.026387 | |
925 | , 0.026387, 0.026387, 0.026387, 0.026387 | |
926 | , 0.026387, 0.026274, 0.026274, 0.026274 | |
927 | , 0.026274, 0.026274, 0.026274, 0.026274 | |
928 | , 0.026274, 0.026274, 0.026274, 0.026274 | |
929 | , 0.026274, 0.026274, 0.026274, 0.026161 }; | |
930 | ||
931 | Float_t xtalk[kNpasa] = { 0.000000, 0.000000, 0.000000, 0.000000 | |
932 | , 0.000000, 0.000000, 0.000000, 0.000113 | |
933 | , 0.000793, 0.003058, 0.007305, 0.013194 | |
934 | , 0.019706, 0.025821, 0.030634, 0.033465 | |
935 | , 0.034145, 0.032729, 0.029615, 0.025198 | |
936 | , 0.019989, 0.014496, 0.009003, 0.003964 | |
937 | , -0.000510, -0.004190, -0.007191, -0.009400 | |
938 | , -0.010872, -0.011835, -0.012288, -0.012288 | |
939 | , -0.012005, -0.011495, -0.010872, -0.010136 | |
940 | , -0.009343, -0.008607, -0.007871, -0.007191 | |
941 | , -0.006512, -0.005946, -0.005379, -0.004926 | |
942 | , -0.004473, -0.004077, -0.003737, -0.003398 | |
943 | , -0.003114, -0.002831, -0.002605, -0.002378 | |
944 | , -0.002208, -0.002039, -0.001869, -0.001699 | |
945 | , -0.001585, -0.001472, -0.001359, -0.001246 | |
946 | , -0.001132, -0.001019, -0.001019, -0.000906 | |
947 | , -0.000906, -0.000793, -0.000793, -0.000680 | |
948 | , -0.000680, -0.000680, -0.000566, -0.000566 | |
949 | , -0.000566, -0.000566, -0.000453, -0.000453 | |
950 | , -0.000453, -0.000453, -0.000453, -0.000453 | |
951 | , -0.000340, -0.000340, -0.000340, -0.000340 | |
952 | , -0.000340, -0.000340, -0.000340, -0.000340 | |
953 | , -0.000340, -0.000340, -0.000340, -0.000340 | |
954 | , -0.000340, -0.000227, -0.000227, -0.000227 | |
955 | , -0.000227, -0.000227, -0.000227, -0.000227 | |
956 | , -0.000227, -0.000227, -0.000227, -0.000227 | |
957 | , -0.000227, -0.000227, -0.000227, -0.000227 | |
958 | , -0.000227, -0.000227, -0.000227, -0.000227 | |
959 | , -0.000227, -0.000227, -0.000227, -0.000227 | |
960 | , -0.000227, -0.000227, -0.000227, -0.000227 | |
961 | , -0.000227, -0.000227, -0.000227, -0.000227 | |
962 | , -0.000227, -0.000227, -0.000227, -0.000227 | |
963 | , -0.000227, -0.000227, -0.000227, -0.000113 | |
964 | , -0.000113, -0.000113, -0.000113, -0.000113 | |
965 | , -0.000113, -0.000113, -0.000113, -0.000113 | |
966 | , -0.000113, -0.000113, -0.000113, -0.000113 | |
967 | , -0.000113, -0.000113, -0.000113, -0.000113 | |
968 | , -0.000113, -0.000113, -0.000113, -0.000113 | |
969 | , -0.000113, -0.000113, -0.000113, -0.000113 | |
970 | , -0.000113, -0.000113, -0.000113, -0.000113 | |
971 | , -0.000113, -0.000113, -0.000113, -0.000113 | |
972 | , -0.000113, -0.000113, -0.000113, -0.000113 | |
973 | , -0.000113, -0.000113, -0.000113, -0.000113 | |
974 | , -0.000113, -0.000113, -0.000113, -0.000113 | |
975 | , -0.000113, -0.000113, -0.000113, -0.000113 | |
976 | , -0.000113, -0.000113, -0.000113, -0.000113 | |
977 | , -0.000113, -0.000113, -0.000113, -0.000113 | |
978 | , -0.000113, -0.000113, -0.000113, -0.000113 | |
979 | , -0.000113, -0.000113, -0.000113, -0.000113 | |
980 | , -0.000113, -0.000113, -0.000113, -0.000113 | |
981 | , -0.000113, -0.000113, -0.000113, -0.000113 | |
982 | , -0.000113, -0.000113, -0.000113, -0.000113 | |
983 | , -0.000113, -0.000113, -0.000113, 0.000000 | |
984 | , 0.000000, 0.000000, 0.000000, 0.000000 | |
985 | , 0.000000, 0.000000, 0.000000, 0.000000 | |
986 | , 0.000000, 0.000000, 0.000000, 0.000000 | |
987 | , 0.000000, 0.000000, 0.000000, 0.000000 | |
988 | , 0.000000, 0.000000, 0.000000, 0.000000 | |
989 | , 0.000000, 0.000000, 0.000000, 0.000000 | |
990 | , 0.000000, 0.000000, 0.000000, 0.000000 | |
991 | , 0.000000, 0.000000, 0.000000, 0.000000 | |
992 | , 0.000000, 0.000000, 0.000000, 0.000000 | |
993 | , 0.000000, 0.000000, 0.000000, 0.000000 }; | |
994 | ||
995 | // increase CrossTalk to measurements | |
996 | for (Int_t ipasa = 0; ipasa < kNpasa; ipasa++) { | |
997 | xtalk[ipasa] *= 1.75; | |
998 | } | |
999 | ||
1000 | if (fTRFsmp) delete [] fTRFsmp; | |
1001 | fTRFsmp = new Float_t[fTRFbin]; | |
1002 | if (fCTsmp) delete [] fCTsmp; | |
1003 | fCTsmp = new Float_t[fTRFbin]; | |
1004 | ||
1005 | Float_t loTRF = TMath::Max(fTRFlo / fDriftVelocity,time[0]); | |
1006 | Float_t hiTRF = TMath::Min(fTRFhi / fDriftVelocity,time[kNpasa-1]); | |
1007 | Float_t binWidth = (hiTRF - loTRF) / ((Float_t) fTRFbin); | |
1008 | ||
1009 | // Take the linear interpolation | |
1010 | for (Int_t iBin = 0; iBin < fTRFbin; iBin++) { | |
1011 | ||
1012 | Float_t bin = (((Float_t) iBin) + 0.5) * binWidth + loTRF; | |
1013 | ipos1 = ipos2 = 0; | |
1014 | diff = 0; | |
1015 | do { | |
1016 | diff = bin - time[ipos2++]; | |
1017 | } while (diff > 0); | |
1018 | ipos2--; | |
1019 | if (ipos2 >= kNpasa) ipos2 = kNpasa - 1; | |
1020 | ipos1 = ipos2 - 1; | |
1021 | ||
1022 | fTRFsmp[iBin] = signal[ipos2] | |
1023 | + diff * (signal[ipos2] - signal[ipos1]) | |
1024 | / ( time[ipos2] - time[ipos1]); | |
1025 | ||
1026 | fCTsmp[iBin] = xtalk[ipos2] | |
1027 | + diff * (xtalk[ipos2] - xtalk[ipos1]) | |
1028 | / ( time[ipos2] - time[ipos1]); | |
1029 | ||
1030 | } | |
1031 | ||
1032 | } | |
1033 | ||
a328fff9 | 1034 | //_____________________________________________________________________________ |
1035 | void AliTRDparameter::SampleTimeStruct() | |
1036 | { | |
1037 | // | |
1038 | // Samples the timing structure of a drift cell | |
1039 | // Drift Time data calculated with Garfield (by C.Lippmann) | |
1040 | // | |
1041 | ||
1042 | const Int_t ktimebin = 38; | |
682619b9 | 1043 | const Int_t kZbin = 11; |
1044 | ||
1045 | Float_t time[ktimebin][kZbin] = | |
1046 | {{0.10176, 0.10197, 0.10356, 0.10479, 0.10497, 0.10500, 0.10500, | |
1047 | 0.10698, 0.12213, 0.16118, 0.22154}, | |
1048 | {0.07500, 0.07500, 0.07500, 0.07500, 0.07500, 0.07500, 0.07509, | |
1049 | 0.08010, 0.10176, 0.13244, 0.22848}, | |
1050 | {0.04500, 0.04500, 0.04500, 0.04500, 0.04500, 0.04503, 0.05130, | |
1051 | 0.07398, 0.07557, 0.11064, 0.26833}, | |
1052 | {0.01500, 0.01500, 0.01500, 0.01500, 0.03219, 0.04500, 0.04500, | |
1053 | 0.04500, 0.07482, 0.11628, 0.40846}, | |
1054 | {0.01500, 0.01500, 0.01500, 0.01500, 0.02886, 0.04500, 0.04500, | |
1055 | 0.04512, 0.07503, 0.13230, 0.43602}, | |
1056 | {0.04500, 0.04500, 0.04500, 0.04500, 0.04500, 0.04500, 0.04872, | |
1057 | 0.07437, 0.07635, 0.11925, 0.30372}, | |
1058 | {0.07500, 0.07497, 0.07500, 0.07500, 0.07500, 0.07500, 0.07500, | |
1059 | 0.08232, 0.10458, 0.14100, 0.24799}, | |
1060 | {0.10098, 0.10125, 0.10218, 0.10299, 0.10467, 0.15000, 0.10959, | |
1061 | 0.12207, 0.14241, 0.19485, 0.25688}, | |
1062 | {0.13500, 0.13503, 0.13509, 0.13782, 0.16182, 0.25076, 0.19593, | |
1063 | 0.19254, 0.21060, 0.25561, 0.29469}, | |
1064 | {0.19305, 0.19374, 0.19512, 0.19974, 0.22020, 0.29420, 0.25992, | |
1065 | 0.25461, 0.27515, 0.31938, 0.35238}, | |
1066 | {0.25143, 0.25320, 0.25476, 0.26166, 0.27993, 0.34470, 0.32160, | |
1067 | 0.31623, 0.33687, 0.37420, 0.40797}, | |
1068 | {0.31044, 0.31197, 0.31491, 0.32280, 0.34125, 0.39702, 0.38401, | |
1069 | 0.37794, 0.39545, 0.43494, 0.46956}, | |
1070 | {0.37128, 0.37146, 0.37668, 0.38424, 0.40326, 0.45271, 0.44643, | |
1071 | 0.43783, 0.45882, 0.49726, 0.52348}, | |
1072 | {0.43065, 0.43242, 0.43722, 0.44379, 0.46551, 0.51167, 0.50685, | |
1073 | 0.49924, 0.52016, 0.55609, 0.57829}, | |
1074 | {0.49161, 0.49329, 0.49725, 0.50629, 0.52803, 0.56777, 0.56755, | |
1075 | 0.56057, 0.58062, 0.61293, 0.63839}, | |
1076 | {0.55284, 0.55311, 0.55743, 0.56703, 0.58824, 0.62747, 0.62833, | |
1077 | 0.62083, 0.63899, 0.67412, 0.70006}, | |
1078 | {0.61323, 0.61494, 0.61782, 0.62802, 0.65025, 0.68675, 0.68847, | |
1079 | 0.68248, 0.70177, 0.73588, 0.76314}, | |
1080 | {0.67293, 0.67482, 0.68034, 0.68814, 0.71169, 0.74695, 0.75024, | |
1081 | 0.74462, 0.76083, 0.79194, 0.81463}, | |
1082 | {0.73470, 0.73665, 0.74013, 0.75054, 0.77107, 0.80588, 0.81071, | |
1083 | 0.80508, 0.82337, 0.85380, 0.87045}, | |
1084 | {0.79509, 0.79677, 0.80115, 0.81150, 0.83400, 0.86360, 0.87159, | |
1085 | 0.86608, 0.88323, 0.91756, 0.93721}, | |
1086 | {0.85695, 0.85800, 0.86307, 0.87276, 0.89599, 0.92639, 0.93266, | |
1087 | 0.92962, 0.94291, 0.97445, 0.99502}, | |
1088 | {0.91680, 0.91875, 0.92400, 0.93219, 0.95555, 0.98729, 0.99281, | |
1089 | 0.99145, 1.00683, 1.03343, 1.05299}, | |
1090 | {0.97833, 0.98058, 0.98421, 0.99357, 1.01602, 1.04438, 1.05299, | |
1091 | 1.05168, 1.06528, 1.09644, 1.11557}, | |
1092 | {1.03938, 1.04061, 1.04568, 1.05617, 1.07923, 1.10648, 1.11466, | |
1093 | 1.11385, 1.12606, 1.15817, 1.17352}, | |
1094 | {1.10166, 1.10268, 1.10766, 1.11785, 1.14014, 1.16717, 1.17496, | |
1095 | 1.17644, 1.19115, 1.21622, 1.23605}, | |
1096 | {1.16334, 1.16364, 1.16985, 1.17996, 1.19935, 1.22911, 1.23561, | |
1097 | 1.23526, 1.25144, 1.27936, 1.29018}, | |
1098 | {1.22403, 1.22598, 1.23000, 1.24092, 1.26173, 1.28817, 1.29991, | |
1099 | 1.29698, 1.31238, 1.33793, 1.35595}, | |
1100 | {1.28556, 1.28898, 1.29300, 1.30356, 1.32617, 1.34912, 1.35925, | |
1101 | 1.35835, 1.37312, 1.40111, 1.41497}, | |
1102 | {1.34787, 1.34877, 1.35468, 1.36449, 1.38654, 1.41077, 1.41975, | |
1103 | 1.42136, 1.43843, 1.45897, 1.48025}, | |
1104 | {1.41045, 1.41171, 1.41555, 1.42656, 1.44698, 1.47026, 1.48324, | |
1105 | 1.48479, 1.50180, 1.52354, 1.53392}, | |
1106 | {1.47090, 1.47354, 1.47647, 1.48905, 1.51211, 1.53038, 1.54349, | |
1107 | 1.54803, 1.56136, 1.58662, 1.60480}, | |
1108 | {1.53357, 1.53429, 1.54017, 1.55116, 1.57247, 1.59498, 1.60576, | |
1109 | 1.60746, 1.62389, 1.64239, 1.66245}, | |
1110 | {1.59522, 1.59636, 1.60247, 1.61385, 1.63641, 1.65659, 1.66619, | |
1111 | 1.67044, 1.68213, 1.70379, 1.72372}, | |
1112 | {1.65867, 1.65711, 1.66320, 1.67434, 1.69603, 1.71788, 1.72927, | |
1113 | 1.73214, 1.74713, 1.76485, 1.77775}, | |
1114 | {1.71825, 1.72074, 1.72497, 1.73712, 1.75690, 1.77755, 1.78711, | |
1115 | 1.79849, 1.80587, 1.82576, 1.84050}, | |
1116 | {1.78194, 1.78320, 1.78875, 1.80047, 1.81716, 1.84044, 1.85328, | |
1117 | 1.85511, 1.86911, 1.88919, 1.89926}, | |
1118 | {1.84335, 1.84431, 1.84938, 1.86063, 1.88022, 1.90234, 1.91177, | |
1119 | 1.92173, 1.93202, 1.95097, 1.97105}, | |
1120 | {1.90491, 1.90665, 1.91303, 1.92575, 1.94432, 1.96400, 1.97574, | |
1121 | 1.98378, 1.99368, 2.01964, 2.02605}}; | |
a328fff9 | 1122 | |
1123 | if (fTimeStruct) delete [] fTimeStruct; | |
1124 | fTimeStruct = new Float_t[ktimebin*kZbin]; | |
1125 | ||
1126 | for (Int_t ctrt = 0; ctrt<ktimebin; ctrt++) | |
1127 | for (Int_t ctrz = 0; ctrz<kZbin; ctrz++) { | |
682619b9 | 1128 | fTimeStruct[ctrt+ctrz*ktimebin] = time[ctrt][ctrz]; |
a328fff9 | 1129 | } |
1130 | ||
1131 | } | |
1132 | ||
17b26de4 | 1133 | //_____________________________________________________________________________ |
1134 | void AliTRDparameter::SamplePRF() | |
1135 | { | |
1136 | // | |
1137 | // Samples the pad response function | |
1138 | // | |
1139 | ||
1140 | const Int_t kNplan = AliTRDgeometry::kNplan; | |
1141 | const Int_t kPRFbin = 61; | |
1142 | ||
a328fff9 | 1143 | Float_t prf[kNplan][kPRFbin] = { {0.0267681, 0.031056, 0.036111, 0.0419945, 0.0489578, |
1144 | 0.0571508, 0.0666984, 0.078064, 0.0912508, 0.106579, | |
1145 | 0.124429, 0.144803, 0.168187, 0.194645, 0.224143, | |
1146 | 0.25717, 0.293146, 0.331943, 0.373128, 0.415798, | |
1147 | 0.459149, 0.502028, 0.54349, 0.582109, 0.617335, | |
1148 | 0.648306, 0.674189, 0.695082, 0.710222, 0.719711, | |
1149 | 0.723751, 0.719711, 0.710222, 0.695082, 0.674189, | |
1150 | 0.648306, 0.617335, 0.582109, 0.54349, 0.502028, | |
1151 | 0.459149, 0.415798, 0.373128, 0.331943, 0.293146, | |
1152 | 0.25717, 0.224143, 0.194645, 0.168187, 0.144803, | |
1153 | 0.124429, 0.106579, 0.0912508, 0.078064, 0.0666984, | |
1154 | 0.0571508, 0.0489578, 0.0419945, 0.036111, 0.031056, | |
1155 | 0.0267681}, | |
1156 | {0.0240831, 0.0281427, 0.0328987, 0.0384801, 0.0451249, | |
1157 | 0.0530119, 0.0623139, 0.0733268, 0.0864095, 0.101704, | |
1158 | 0.119473, 0.140308, 0.164191, 0.191333, 0.222141, | |
1159 | 0.256551, 0.29433, 0.335294, 0.37892, 0.424206, | |
1160 | 0.470202, 0.515621, 0.559255, 0.600068, 0.636821, | |
1161 | 0.668836, 0.695767, 0.717076, 0.73233, 0.741818, | |
1162 | 0.745491, 0.741818, 0.73233, 0.717076, 0.695767, | |
1163 | 0.668836, 0.636821, 0.600068, 0.559255, 0.515621, | |
1164 | 0.470202, 0.424206, 0.37892, 0.335294, 0.29433, | |
1165 | 0.256551, 0.222141, 0.191333, 0.164191, 0.140308, | |
1166 | 0.119473, 0.101704, 0.0864095, 0.0733268, 0.0623139, | |
1167 | 0.0530119, 0.0451249, 0.0384801, 0.0328987, 0.0281427, | |
1168 | 0.0240831}, | |
1169 | {0.0206855, 0.0243011, 0.0285603, 0.0335902, 0.0396015, | |
1170 | 0.0467843, 0.0553424, 0.0655316, 0.0776688, 0.0921782, | |
1171 | 0.109269, 0.129259, 0.152459, 0.179369, 0.210091, | |
1172 | 0.244681, 0.283099, 0.325176, 0.370396, 0.417732, | |
1173 | 0.466086, 0.514192, 0.560518, 0.603805, 0.643028, | |
1174 | 0.67738, 0.706095, 0.728728, 0.745307, 0.755731, | |
1175 | 0.759954, 0.755731, 0.745307, 0.728728, 0.706095, | |
1176 | 0.67738, 0.643028, 0.603805, 0.560518, 0.514192, | |
1177 | 0.466086, 0.417732, 0.370396, 0.325176, 0.283099, | |
1178 | 0.244681, 0.210091, 0.179369, 0.152459, 0.129259, | |
1179 | 0.109269, 0.0921782, 0.0776688, 0.0655316, 0.0553424, | |
1180 | 0.0467843, 0.0396015, 0.0335902, 0.0285603, 0.0243011, | |
1181 | 0.0206855}, | |
1182 | {0.0186168, 0.0219999, 0.0260102, 0.0307769, 0.0364947, | |
1183 | 0.0433655, 0.0516213, 0.0615466, 0.0734611, 0.0877121, | |
1184 | 0.104666, 0.124855, 0.14853, 0.176033, 0.207639, | |
1185 | 0.243511, 0.283633, 0.327786, 0.37537, 0.425281, | |
1186 | 0.476227, 0.526727, 0.575268, 0.620462, 0.66101, | |
1187 | 0.69611, 0.725313, 0.748317, 0.764969, 0.775206, | |
1188 | 0.779006, 0.775206, 0.764969, 0.748317, 0.725313, | |
1189 | 0.69611, 0.66101, 0.620462, 0.575268, 0.526727, | |
1190 | 0.476227, 0.425281, 0.37537, 0.327786, 0.283633, | |
1191 | 0.243511, 0.207639, 0.176033, 0.14853, 0.124855, | |
1192 | 0.104666, 0.0877121, 0.0734611, 0.0615466, 0.0516213, | |
1193 | 0.0433655, 0.0364947, 0.0307769, 0.0260102, 0.0219999, | |
1194 | 0.0186168, }, | |
1195 | {0.0159737, 0.0189921, 0.0225916, 0.0268927, 0.0320634, | |
1196 | 0.0382995, 0.0458393, 0.0549765, 0.0660512, 0.0794439, | |
1197 | 0.095565, 0.114844, 0.137713, 0.164586, 0.195824, | |
1198 | 0.231681, 0.272223, 0.31727, 0.366248, 0.418078, | |
1199 | 0.471358, 0.524425, 0.575561, 0.623193, 0.666055, | |
1200 | 0.703243, 0.734192, 0.7586, 0.776331, 0.787347, | |
1201 | 0.791646, 0.787347, 0.776331, 0.7586, 0.734192, | |
1202 | 0.703243, 0.666055, 0.623193, 0.575561, 0.524425, | |
1203 | 0.471358, 0.418078, 0.366248, 0.31727, 0.272223, | |
1204 | 0.231681, 0.195824, 0.164586, 0.137713, 0.114844, | |
1205 | 0.095565, 0.0794439, 0.0660512, 0.0549765, 0.0458393, | |
1206 | 0.0382995, 0.0320634, 0.0268927, 0.0225916, 0.0189921, | |
1207 | 0.0159737}, | |
1208 | {0.0143532, 0.0171745, 0.0205622, 0.024635, 0.0295461, | |
1209 | 0.0354915, 0.0427198, 0.0515368, 0.0623058, 0.0754416, | |
1210 | 0.0913994, 0.110662, 0.133721, 0.161057, 0.193093, | |
1211 | 0.230138, 0.27229, 0.319327, 0.370597, 0.424961, | |
1212 | 0.480832, 0.536333, 0.589555, 0.638805, 0.682781, | |
1213 | 0.720621, 0.751845, 0.776243, 0.793764, 0.804426, | |
1214 | 0.808259, 0.804426, 0.793764, 0.776243, 0.751845, | |
1215 | 0.720621, 0.682781, 0.638805, 0.589555, 0.536333, | |
1216 | 0.480832, 0.424961, 0.370597, 0.319327, 0.27229, | |
1217 | 0.230138, 0.193093, 0.161057, 0.133721, 0.110662, | |
1218 | 0.0913994, 0.0754416, 0.0623058, 0.0515368, 0.0427198, | |
1219 | 0.0354915, 0.0295461, 0.024635, 0.0205622, 0.0171745, | |
1220 | 0.0143532} }; | |
17b26de4 | 1221 | |
1222 | // More sampling precision with linear interpolation | |
1223 | fPRFlo = -1.5; | |
1224 | fPRFhi = 1.5; | |
1225 | Float_t pad[kPRFbin]; | |
1226 | Int_t sPRFbin = kPRFbin; | |
1227 | Float_t sPRFwid = (fPRFhi - fPRFlo) / ((Float_t) sPRFbin); | |
1228 | for (Int_t iPad = 0; iPad < sPRFbin; iPad++) { | |
1229 | pad[iPad] = ((Float_t) iPad + 0.5) * sPRFwid + fPRFlo; | |
1230 | } | |
1231 | fPRFbin = 500; | |
1232 | fPRFwid = (fPRFhi - fPRFlo) / ((Float_t) fPRFbin); | |
1233 | fPRFpad = ((Int_t) (1.0 / fPRFwid)); | |
1234 | ||
1235 | if (fPRFsmp) delete [] fPRFsmp; | |
1236 | fPRFsmp = new Float_t[kNplan*fPRFbin]; | |
1237 | ||
1238 | Int_t ipos1; | |
1239 | Int_t ipos2; | |
1240 | Float_t diff; | |
1241 | ||
1242 | for (Int_t iPla = 0; iPla < kNplan; iPla++) { | |
1243 | ||
1244 | for (Int_t iBin = 0; iBin < fPRFbin; iBin++) { | |
1245 | ||
1246 | Float_t bin = (((Float_t) iBin) + 0.5) * fPRFwid + fPRFlo; | |
1247 | ipos1 = ipos2 = 0; | |
1248 | diff = 0; | |
1249 | do { | |
1250 | diff = bin - pad[ipos2++]; | |
8e64dd77 | 1251 | } while ((diff > 0) && (ipos2 < kPRFbin)); |
1252 | if (ipos2 == kPRFbin) { | |
1253 | fPRFsmp[iPla*fPRFbin+iBin] = prf[iPla][ipos2-1]; | |
1254 | } | |
1255 | else if (ipos2 == 1) { | |
1256 | fPRFsmp[iPla*fPRFbin+iBin] = prf[iPla][ipos2-1]; | |
1257 | } | |
1258 | else { | |
1259 | ipos2--; | |
1260 | if (ipos2 >= kPRFbin) ipos2 = kPRFbin - 1; | |
1261 | ipos1 = ipos2 - 1; | |
1262 | fPRFsmp[iPla*fPRFbin+iBin] = prf[iPla][ipos2] | |
1263 | + diff * (prf[iPla][ipos2] - prf[iPla][ipos1]) | |
1264 | / sPRFwid; | |
1265 | } | |
17b26de4 | 1266 | |
1267 | } | |
1268 | } | |
1269 | ||
1270 | } | |
1271 | ||
1272 | //_____________________________________________________________________________ | |
1273 | void AliTRDparameter::FillLUT() | |
1274 | { | |
1275 | // | |
1276 | // Create the LUT | |
1277 | // | |
1278 | ||
1279 | const Int_t kNplan = AliTRDgeometry::kNplan; | |
1280 | const Int_t kNlut = 128; | |
1281 | ||
1282 | fLUTbin = kNplan * kNlut; | |
1283 | ||
1284 | // The lookup table from Bogdan | |
1285 | Float_t lut[kNplan][kNlut] = { | |
1286 | { | |
1287 | 0.0070, 0.0150, 0.0224, 0.0298, 0.0374, 0.0454, 0.0533, 0.0611, | |
1288 | 0.0684, 0.0755, 0.0827, 0.0900, 0.0975, 0.1049, 0.1120, 0.1187, | |
1289 | 0.1253, 0.1318, 0.1385, 0.1453, 0.1519, 0.1584, 0.1646, 0.1704, | |
1290 | 0.1762, 0.1821, 0.1879, 0.1938, 0.1996, 0.2053, 0.2108, 0.2160, | |
1291 | 0.2210, 0.2260, 0.2310, 0.2361, 0.2411, 0.2461, 0.2509, 0.2557, | |
1292 | 0.2602, 0.2646, 0.2689, 0.2732, 0.2774, 0.2816, 0.2859, 0.2901, | |
1293 | 0.2942, 0.2983, 0.3022, 0.3061, 0.3099, 0.3136, 0.3172, 0.3207, | |
1294 | 0.3242, 0.3278, 0.3312, 0.3347, 0.3382, 0.3416, 0.3450, 0.3483, | |
1295 | 0.3515, 0.3547, 0.3579, 0.3609, 0.3639, 0.3669, 0.3698, 0.3727, | |
1296 | 0.3756, 0.3785, 0.3813, 0.3842, 0.3870, 0.3898, 0.3926, 0.3952, | |
1297 | 0.3979, 0.4005, 0.4032, 0.4057, 0.4082, 0.4108, 0.4132, 0.4157, | |
1298 | 0.4181, 0.4205, 0.4228, 0.4252, 0.4275, 0.4299, 0.4322, 0.4345, | |
1299 | 0.4367, 0.4390, 0.4412, 0.4434, 0.4456, 0.4478, 0.4499, 0.4520, | |
1300 | 0.4541, 0.4562, 0.4583, 0.4603, 0.4623, 0.4643, 0.4663, 0.4683, | |
1301 | 0.4702, 0.4722, 0.4741, 0.4758, 0.4774, 0.4790, 0.4805, 0.4824, | |
1302 | 0.4844, 0.4863, 0.4883, 0.4902, 0.4921, 0.4940, 0.4959, 0.4978 | |
1303 | }, | |
1304 | { | |
1305 | 0.0072, 0.0156, 0.0235, 0.0313, 0.0394, 0.0478, 0.0561, 0.0642, | |
1306 | 0.0718, 0.0792, 0.0868, 0.0947, 0.1025, 0.1101, 0.1172, 0.1241, | |
1307 | 0.1309, 0.1378, 0.1449, 0.1518, 0.1586, 0.1650, 0.1710, 0.1770, | |
1308 | 0.1830, 0.1891, 0.1952, 0.2011, 0.2070, 0.2125, 0.2177, 0.2229, | |
1309 | 0.2280, 0.2332, 0.2383, 0.2435, 0.2484, 0.2533, 0.2581, 0.2627, | |
1310 | 0.2670, 0.2714, 0.2757, 0.2799, 0.2842, 0.2884, 0.2927, 0.2968, | |
1311 | 0.3008, 0.3048, 0.3086, 0.3123, 0.3159, 0.3195, 0.3231, 0.3266, | |
1312 | 0.3301, 0.3335, 0.3370, 0.3404, 0.3438, 0.3471, 0.3504, 0.3536, | |
1313 | 0.3567, 0.3598, 0.3628, 0.3657, 0.3686, 0.3715, 0.3744, 0.3772, | |
1314 | 0.3800, 0.3828, 0.3856, 0.3884, 0.3911, 0.3938, 0.3965, 0.3991, | |
1315 | 0.4016, 0.4042, 0.4067, 0.4092, 0.4116, 0.4140, 0.4164, 0.4187, | |
1316 | 0.4211, 0.4234, 0.4257, 0.4280, 0.4302, 0.4325, 0.4347, 0.4369, | |
1317 | 0.4391, 0.4413, 0.4434, 0.4456, 0.4477, 0.4497, 0.4518, 0.4538, | |
1318 | 0.4558, 0.4578, 0.4598, 0.4618, 0.4637, 0.4656, 0.4675, 0.4694, | |
1319 | 0.4713, 0.4732, 0.4750, 0.4766, 0.4781, 0.4797, 0.4813, 0.4832, | |
1320 | 0.4851, 0.4870, 0.4888, 0.4906, 0.4925, 0.4942, 0.4960, 0.4978 | |
1321 | }, | |
1322 | { | |
1323 | 0.0075, 0.0163, 0.0246, 0.0328, 0.0415, 0.0504, 0.0592, 0.0674, | |
1324 | 0.0753, 0.0832, 0.0914, 0.0996, 0.1077, 0.1154, 0.1225, 0.1296, | |
1325 | 0.1369, 0.1442, 0.1515, 0.1585, 0.1652, 0.1714, 0.1776, 0.1839, | |
1326 | 0.1902, 0.1965, 0.2025, 0.2085, 0.2141, 0.2194, 0.2247, 0.2299, | |
1327 | 0.2352, 0.2405, 0.2457, 0.2507, 0.2557, 0.2604, 0.2649, 0.2693, | |
1328 | 0.2737, 0.2780, 0.2823, 0.2867, 0.2909, 0.2951, 0.2992, 0.3033, | |
1329 | 0.3072, 0.3110, 0.3146, 0.3182, 0.3218, 0.3253, 0.3288, 0.3323, | |
1330 | 0.3357, 0.3392, 0.3426, 0.3459, 0.3492, 0.3524, 0.3555, 0.3586, | |
1331 | 0.3616, 0.3645, 0.3674, 0.3703, 0.3731, 0.3759, 0.3787, 0.3815, | |
1332 | 0.3843, 0.3870, 0.3897, 0.3925, 0.3950, 0.3976, 0.4002, 0.4027, | |
1333 | 0.4052, 0.4076, 0.4101, 0.4124, 0.4148, 0.4171, 0.4194, 0.4217, | |
1334 | 0.4239, 0.4262, 0.4284, 0.4306, 0.4328, 0.4350, 0.4371, 0.4393, | |
1335 | 0.4414, 0.4435, 0.4455, 0.4476, 0.4496, 0.4516, 0.4536, 0.4555, | |
1336 | 0.4575, 0.4594, 0.4613, 0.4632, 0.4650, 0.4669, 0.4687, 0.4705, | |
1337 | 0.4723, 0.4741, 0.4758, 0.4773, 0.4789, 0.4804, 0.4821, 0.4839, | |
1338 | 0.4857, 0.4875, 0.4893, 0.4910, 0.4928, 0.4945, 0.4961, 0.4978 | |
1339 | }, | |
1340 | { | |
1341 | 0.0078, 0.0171, 0.0258, 0.0345, 0.0438, 0.0532, 0.0624, 0.0708, | |
1342 | 0.0791, 0.0875, 0.0962, 0.1048, 0.1130, 0.1206, 0.1281, 0.1356, | |
1343 | 0.1432, 0.1508, 0.1582, 0.1651, 0.1716, 0.1780, 0.1845, 0.1910, | |
1344 | 0.1975, 0.2038, 0.2099, 0.2155, 0.2210, 0.2263, 0.2317, 0.2371, | |
1345 | 0.2425, 0.2477, 0.2528, 0.2578, 0.2626, 0.2671, 0.2715, 0.2759, | |
1346 | 0.2803, 0.2846, 0.2890, 0.2933, 0.2975, 0.3016, 0.3056, 0.3095, | |
1347 | 0.3132, 0.3168, 0.3204, 0.3239, 0.3274, 0.3309, 0.3344, 0.3378, | |
1348 | 0.3412, 0.3446, 0.3479, 0.3511, 0.3543, 0.3574, 0.3603, 0.3633, | |
1349 | 0.3662, 0.3690, 0.3718, 0.3747, 0.3774, 0.3802, 0.3829, 0.3857, | |
1350 | 0.3883, 0.3910, 0.3936, 0.3962, 0.3987, 0.4012, 0.4037, 0.4061, | |
1351 | 0.4085, 0.4109, 0.4132, 0.4155, 0.4177, 0.4200, 0.4222, 0.4244, | |
1352 | 0.4266, 0.4288, 0.4309, 0.4331, 0.4352, 0.4373, 0.4394, 0.4414, | |
1353 | 0.4435, 0.4455, 0.4475, 0.4494, 0.4514, 0.4533, 0.4552, 0.4571, | |
1354 | 0.4590, 0.4608, 0.4626, 0.4645, 0.4662, 0.4680, 0.4698, 0.4715, | |
1355 | 0.4733, 0.4750, 0.4766, 0.4781, 0.4796, 0.4812, 0.4829, 0.4846, | |
1356 | 0.4863, 0.4880, 0.4897, 0.4914, 0.4930, 0.4946, 0.4963, 0.4979 | |
1357 | }, | |
1358 | { | |
1359 | 0.0081, 0.0178, 0.0270, 0.0364, 0.0463, 0.0562, 0.0656, 0.0744, | |
1360 | 0.0831, 0.0921, 0.1013, 0.1102, 0.1183, 0.1261, 0.1339, 0.1419, | |
1361 | 0.1499, 0.1576, 0.1648, 0.1715, 0.1782, 0.1849, 0.1917, 0.1984, | |
1362 | 0.2048, 0.2110, 0.2167, 0.2223, 0.2278, 0.2333, 0.2389, 0.2444, | |
1363 | 0.2497, 0.2548, 0.2598, 0.2645, 0.2691, 0.2735, 0.2780, 0.2824, | |
1364 | 0.2868, 0.2912, 0.2955, 0.2997, 0.3038, 0.3078, 0.3116, 0.3152, | |
1365 | 0.3188, 0.3224, 0.3259, 0.3294, 0.3329, 0.3364, 0.3398, 0.3432, | |
1366 | 0.3465, 0.3497, 0.3529, 0.3561, 0.3591, 0.3620, 0.3649, 0.3677, | |
1367 | 0.3705, 0.3733, 0.3761, 0.3788, 0.3816, 0.3843, 0.3869, 0.3896, | |
1368 | 0.3922, 0.3948, 0.3973, 0.3998, 0.4022, 0.4047, 0.4070, 0.4094, | |
1369 | 0.4117, 0.4139, 0.4162, 0.4184, 0.4206, 0.4227, 0.4249, 0.4270, | |
1370 | 0.4291, 0.4313, 0.4334, 0.4354, 0.4375, 0.4395, 0.4415, 0.4435, | |
1371 | 0.4455, 0.4474, 0.4493, 0.4512, 0.4531, 0.4550, 0.4568, 0.4586, | |
1372 | 0.4604, 0.4622, 0.4639, 0.4657, 0.4674, 0.4691, 0.4708, 0.4725, | |
1373 | 0.4742, 0.4758, 0.4773, 0.4788, 0.4803, 0.4819, 0.4836, 0.4852, | |
1374 | 0.4869, 0.4885, 0.4901, 0.4917, 0.4933, 0.4948, 0.4964, 0.4979 | |
1375 | }, | |
1376 | { | |
1377 | 0.0085, 0.0189, 0.0288, 0.0389, 0.0497, 0.0603, 0.0699, 0.0792, | |
1378 | 0.0887, 0.0985, 0.1082, 0.1170, 0.1253, 0.1336, 0.1421, 0.1505, | |
1379 | 0.1587, 0.1662, 0.1733, 0.1803, 0.1874, 0.1945, 0.2014, 0.2081, | |
1380 | 0.2143, 0.2201, 0.2259, 0.2316, 0.2374, 0.2431, 0.2487, 0.2541, | |
1381 | 0.2593, 0.2642, 0.2689, 0.2735, 0.2781, 0.2826, 0.2872, 0.2917, | |
1382 | 0.2961, 0.3003, 0.3045, 0.3086, 0.3125, 0.3162, 0.3198, 0.3235, | |
1383 | 0.3270, 0.3306, 0.3342, 0.3377, 0.3411, 0.3446, 0.3479, 0.3511, | |
1384 | 0.3543, 0.3575, 0.3605, 0.3634, 0.3663, 0.3691, 0.3720, 0.3748, | |
1385 | 0.3775, 0.3803, 0.3830, 0.3857, 0.3884, 0.3911, 0.3937, 0.3962, | |
1386 | 0.3987, 0.4012, 0.4036, 0.4060, 0.4084, 0.4107, 0.4129, 0.4152, | |
1387 | 0.4174, 0.4196, 0.4218, 0.4239, 0.4261, 0.4282, 0.4303, 0.4324, | |
1388 | 0.4344, 0.4365, 0.4385, 0.4405, 0.4425, 0.4445, 0.4464, 0.4483, | |
1389 | 0.4502, 0.4521, 0.4539, 0.4558, 0.4576, 0.4593, 0.4611, 0.4629, | |
1390 | 0.4646, 0.4663, 0.4680, 0.4697, 0.4714, 0.4730, 0.4747, 0.4759, | |
1391 | 0.4769, 0.4780, 0.4790, 0.4800, 0.4811, 0.4827, 0.4843, 0.4859, | |
1392 | 0.4874, 0.4889, 0.4905, 0.4920, 0.4935, 0.4950, 0.4965, 0.4979 | |
1393 | } | |
1394 | }; | |
1395 | ||
1396 | if (fLUT) delete [] fLUT; | |
1397 | fLUT = new Float_t[fLUTbin]; | |
1398 | ||
1399 | for (Int_t iplan = 0; iplan < kNplan; iplan++) { | |
1400 | for (Int_t ilut = 0; ilut < kNlut; ilut++) { | |
cfed70d4 | 1401 | fLUT[iplan*kNlut+ilut] = lut[iplan][ilut]; |
17b26de4 | 1402 | } |
1403 | } | |
1404 | ||
1405 | } | |
1406 | ||
1407 | //_____________________________________________________________________________ | |
1408 | void AliTRDparameter::SetTiltingAngle(Float_t v) | |
1409 | { | |
1410 | // | |
1411 | // Set the tilting angle for the readout pads | |
1412 | // | |
1413 | ||
1414 | fTiltingAngle = TMath::Tan(TMath::Pi()/180.0 * v); | |
1415 | ||
1416 | } | |
1417 | ||
1418 | //_____________________________________________________________________________ | |
1419 | Float_t AliTRDparameter::GetTiltingAngle() const | |
1420 | { | |
1421 | // | |
1422 | // Get the tilting angle for the readout pads | |
1423 | // | |
1424 | ||
ab35e265 | 1425 | return 180.0 / TMath::Pi() * TMath::ATan(fTiltingAngle); |
17b26de4 | 1426 | |
1427 | } | |
1428 | ||
1429 | //_____________________________________________________________________________ | |
1430 | Float_t AliTRDparameter::GetDiffusionL(Float_t vd, Float_t b) | |
1431 | { | |
1432 | // | |
1433 | // Returns the longitudinal diffusion coefficient for a given drift | |
1434 | // velocity <vd> and a B-field <b> for Xe/CO2 (15%). | |
1435 | // The values are according to a GARFIELD simulation. | |
1436 | // | |
1437 | ||
1438 | const Int_t kNb = 5; | |
1439 | Float_t p0[kNb] = { 0.007440, 0.007493, 0.007513, 0.007672, 0.007831 }; | |
1440 | Float_t p1[kNb] = { 0.019252, 0.018912, 0.018636, 0.018012, 0.017343 }; | |
1441 | Float_t p2[kNb] = { -0.005042, -0.004926, -0.004867, -0.004650, -0.004424 }; | |
1442 | Float_t p3[kNb] = { 0.000195, 0.000189, 0.000195, 0.000182, 0.000169 }; | |
1443 | ||
1444 | Int_t ib = ((Int_t) (10 * (b - 0.15))); | |
1445 | ib = TMath::Max( 0,ib); | |
1446 | ib = TMath::Min(kNb,ib); | |
1447 | ||
1448 | Float_t diff = p0[ib] | |
1449 | + p1[ib] * vd | |
1450 | + p2[ib] * vd*vd | |
1451 | + p3[ib] * vd*vd*vd; | |
1452 | ||
1453 | return diff; | |
1454 | ||
1455 | } | |
1456 | ||
1457 | //_____________________________________________________________________________ | |
1458 | Float_t AliTRDparameter::GetDiffusionT(Float_t vd, Float_t b) | |
1459 | { | |
1460 | // | |
1461 | // Returns the transverse diffusion coefficient for a given drift | |
1462 | // velocity <vd> and a B-field <b> for Xe/CO2 (15%). | |
1463 | // The values are according to a GARFIELD simulation. | |
1464 | // | |
1465 | ||
1466 | const Int_t kNb = 5; | |
1467 | Float_t p0[kNb] = { 0.009550, 0.009599, 0.009674, 0.009757, 0.009850 }; | |
1468 | Float_t p1[kNb] = { 0.006667, 0.006539, 0.006359, 0.006153, 0.005925 }; | |
1469 | Float_t p2[kNb] = { -0.000853, -0.000798, -0.000721, -0.000635, -0.000541 }; | |
1470 | Float_t p3[kNb] = { 0.000131, 0.000122, 0.000111, 0.000098, 0.000085 }; | |
1471 | ||
1472 | Int_t ib = ((Int_t) (10 * (b - 0.15))); | |
1473 | ib = TMath::Max( 0,ib); | |
1474 | ib = TMath::Min(kNb,ib); | |
1475 | ||
1476 | Float_t diff = p0[ib] | |
1477 | + p1[ib] * vd | |
1478 | + p2[ib] * vd*vd | |
1479 | + p3[ib] * vd*vd*vd; | |
1480 | ||
1481 | return diff; | |
1482 | ||
1483 | } | |
1484 | ||
1485 | //_____________________________________________________________________________ | |
1486 | Float_t AliTRDparameter::GetOmegaTau(Float_t vd, Float_t b) | |
1487 | { | |
1488 | // | |
1489 | // Returns omega*tau (tan(Lorentz-angle)) for a given drift velocity <vd> | |
1490 | // and a B-field <b> for Xe/CO2 (15%). | |
1491 | // The values are according to a GARFIELD simulation. | |
1492 | // | |
1493 | ||
1494 | const Int_t kNb = 5; | |
1495 | Float_t p0[kNb] = { 0.004810, 0.007412, 0.010252, 0.013409, 0.016888 }; | |
1496 | Float_t p1[kNb] = { 0.054875, 0.081534, 0.107333, 0.131983, 0.155455 }; | |
1497 | Float_t p2[kNb] = { -0.008682, -0.012896, -0.016987, -0.020880, -0.024623 }; | |
1498 | Float_t p3[kNb] = { 0.000155, 0.000238, 0.000330, 0.000428, 0.000541 }; | |
1499 | ||
1500 | Int_t ib = ((Int_t) (10 * (b - 0.15))); | |
1501 | ib = TMath::Max( 0,ib); | |
1502 | ib = TMath::Min(kNb,ib); | |
1503 | ||
1504 | Float_t alphaL = p0[ib] | |
1505 | + p1[ib] * vd | |
1506 | + p2[ib] * vd*vd | |
1507 | + p3[ib] * vd*vd*vd; | |
1508 | ||
1509 | return TMath::Tan(alphaL); | |
1510 | ||
1511 | } | |
1512 | ||
1513 | //_____________________________________________________________________________ | |
0a29d0f1 | 1514 | Double_t AliTRDparameter::LUTposition(Int_t iplane, Double_t ampL |
1515 | , Double_t ampC | |
1516 | , Double_t ampR) const | |
17b26de4 | 1517 | { |
1518 | // | |
1519 | // Calculates the cluster position using the lookup table. | |
1520 | // Method provided by Bogdan Vulpescu. | |
1521 | // | |
1522 | ||
1523 | const Int_t kNplan = AliTRDgeometry::kNplan; | |
cfed70d4 | 1524 | const Int_t kNlut = 128; |
17b26de4 | 1525 | |
1526 | Double_t pos; | |
1527 | Double_t x = 0.0; | |
1528 | Double_t xmin; | |
1529 | Double_t xmax; | |
1530 | Double_t xwid; | |
1531 | ||
1532 | Int_t side = 0; | |
1533 | Int_t ix; | |
1534 | ||
1535 | Double_t xMin[kNplan] = { 0.006492, 0.006377, 0.006258, 0.006144, 0.006030, 0.005980 }; | |
1536 | Double_t xMax[kNplan] = { 0.960351, 0.965870, 0.970445, 0.974352, 0.977667, 0.996101 }; | |
1537 | ||
1538 | if (ampL > ampR) { | |
1539 | x = (ampL - ampR) / ampC; | |
1540 | side = -1; | |
1541 | } | |
1542 | else if (ampL < ampR) { | |
1543 | x = (ampR - ampL) / ampC; | |
1544 | side = +1; | |
1545 | } | |
1546 | ||
1547 | if (ampL != ampR) { | |
1548 | ||
1549 | xmin = xMin[iplane] + 0.000005; | |
1550 | xmax = xMax[iplane] - 0.000005; | |
1551 | xwid = (xmax - xmin) / 127.0; | |
1552 | ||
1553 | if (x < xmin) { | |
1554 | pos = 0.0000; | |
1555 | } | |
1556 | else if (x > xmax) { | |
1557 | pos = side * 0.5000; | |
1558 | } | |
1559 | else { | |
1560 | ix = (Int_t) ((x - xmin) / xwid); | |
cfed70d4 | 1561 | pos = side * fLUT[iplane*kNlut+ix]; |
17b26de4 | 1562 | } |
1563 | ||
1564 | } | |
1565 | else { | |
1566 | ||
1567 | pos = 0.0; | |
1568 | ||
1569 | } | |
1570 | ||
1571 | return pos; | |
1572 | ||
1573 | } |