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37c55dc0 | 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 | **************************************************************************/ | |
0d0e6995 | 15 | /* $Id$ */ |
c2fc1258 | 16 | /** @file AliFMDReconstructor.cxx |
17 | @author Christian Holm Christensen <cholm@nbi.dk> | |
18 | @date Mon Mar 27 12:47:09 2006 | |
19 | @brief FMD reconstruction | |
20 | */ | |
4347b38f | 21 | //____________________________________________________________________ |
42403906 | 22 | // |
02a27b50 | 23 | // This is a class that constructs AliFMDRecPoint objects from of Digits |
6169f936 | 24 | // This class reads either digits from a TClonesArray or raw data from |
4347b38f | 25 | // a DDL file (or similar), and stores the read ADC counts in an |
6169f936 | 26 | // internal cache (fAdcs). The rec-points are made via the naiive |
27 | // method. | |
4347b38f | 28 | // |
37c55dc0 | 29 | //-- Authors: Evgeny Karpechev(INR) and Alla Maevsksia |
4347b38f | 30 | // Latest changes by Christian Holm Christensen <cholm@nbi.dk> |
31 | // | |
32 | // | |
33 | //____________________________________________________________________ | |
37c55dc0 | 34 | |
f95a63c4 | 35 | // #include <AliLog.h> // ALILOG_H |
6169f936 | 36 | // #include <AliRun.h> // ALIRUN_H |
f95a63c4 | 37 | #include "AliFMDDebug.h" |
1a1fdef7 | 38 | #include "AliFMDGeometry.h" // ALIFMDGEOMETRY_H |
39 | #include "AliFMDParameters.h" // ALIFMDPARAMETERS_H | |
5cf05dbb | 40 | #include "AliFMDAltroMapping.h" // ALIFMDALTROMAPPING_H |
56b1929b | 41 | #include "AliFMDDigit.h" // ALIFMDDIGIT_H |
faf80567 | 42 | #include "AliFMDSDigit.h" // ALIFMDDIGIT_H |
56b1929b | 43 | #include "AliFMDReconstructor.h" // ALIFMDRECONSTRUCTOR_H |
818fff8d | 44 | #include "AliFMDRecoParam.h" // ALIFMDRECOPARAM_H |
56b1929b | 45 | #include "AliFMDRawReader.h" // ALIFMDRAWREADER_H |
bf000c32 | 46 | #include "AliFMDRecPoint.h" // ALIFMDMULTNAIIVE_H |
af885e0f | 47 | #include "AliESDEvent.h" // ALIESDEVENT_H |
aad72f45 | 48 | #include "AliESDVertex.h" // ALIESDVERTEX_H |
50b9d194 | 49 | #include "AliESDTZERO.h" // ALIESDVERTEX_H |
8f6ee336 | 50 | #include <AliESDFMD.h> // ALIESDFMD_H |
aad72f45 | 51 | #include <TMath.h> |
9684be2f | 52 | #include <TH1.h> |
53 | #include <TH2.h> | |
54 | #include <TFile.h> | |
68aba90a | 55 | #include <climits> |
86878381 | 56 | #include "AliFMDESDRevertexer.h" |
50b9d194 | 57 | |
68aba90a | 58 | |
02a27b50 | 59 | class AliRawReader; |
4347b38f | 60 | |
61 | //____________________________________________________________________ | |
925e6570 | 62 | ClassImp(AliFMDReconstructor) |
1a1fdef7 | 63 | #if 0 |
64 | ; // This is here to keep Emacs for indenting the next line | |
65 | #endif | |
37c55dc0 | 66 | |
4347b38f | 67 | //____________________________________________________________________ |
68 | AliFMDReconstructor::AliFMDReconstructor() | |
69 | : AliReconstructor(), | |
e9fd1e20 | 70 | fMult(0x0), |
71 | fNMult(0), | |
72 | fTreeR(0x0), | |
73 | fCurrentVertex(0), | |
74 | fESDObj(0x0), | |
9684be2f | 75 | fNoiseFactor(0), |
76 | fAngleCorrect(kTRUE), | |
77 | fVertexType(kNoVertex), | |
9684be2f | 78 | fESD(0x0), |
488faace | 79 | fDiagnostics(kFALSE), |
9684be2f | 80 | fDiagStep1(0), |
81 | fDiagStep2(0), | |
82 | fDiagStep3(0), | |
83 | fDiagStep4(0), | |
84 | fDiagAll(0) | |
4347b38f | 85 | { |
8f6ee336 | 86 | // Make a new FMD reconstructor object - default CTOR. |
a9579262 | 87 | SetNoiseFactor(); |
88 | SetAngleCorrect(); | |
9b98d361 | 89 | if (AliDebugLevel() > 0) fDiagnostics = kTRUE; |
030d93c1 | 90 | for(Int_t det = 1; det<=3; det++) { |
91 | fZS[det-1] = kFALSE; | |
92 | fZSFactor[det-1] = 0; | |
93 | } | |
4347b38f | 94 | } |
56b1929b | 95 | |
96 | //____________________________________________________________________ | |
97 | AliFMDReconstructor::~AliFMDReconstructor() | |
98 | { | |
99 | // Destructor | |
8f6ee336 | 100 | if (fMult) fMult->Delete(); |
101 | if (fMult) delete fMult; | |
102 | if (fESDObj) delete fESDObj; | |
56b1929b | 103 | } |
4347b38f | 104 | |
105 | //____________________________________________________________________ | |
106 | void | |
d76c31f4 | 107 | AliFMDReconstructor::Init() |
1a1fdef7 | 108 | { |
109 | // Initialize the reconstructor | |
f011bd38 | 110 | |
bf000c32 | 111 | // Initialize the geometry |
9b48326f | 112 | AliFMDGeometry* geom = AliFMDGeometry::Instance(); |
113 | geom->Init(); | |
114 | geom->InitTransformations(); | |
115 | ||
116 | // Initialize the parameters | |
117 | AliFMDParameters* param = AliFMDParameters::Instance(); | |
118 | param->Init(); | |
bf000c32 | 119 | |
8f6ee336 | 120 | // Current vertex position |
1a1fdef7 | 121 | fCurrentVertex = 0; |
8f6ee336 | 122 | // Create array of reconstructed strip multiplicities |
75609cab | 123 | // fMult = new TClonesArray("AliFMDRecPoint", 51200); |
8f6ee336 | 124 | // Create ESD output object |
125 | fESDObj = new AliESDFMD; | |
126 | ||
9684be2f | 127 | // Check if we need diagnostics histograms |
128 | if (!fDiagnostics) return; | |
9b98d361 | 129 | AliInfo("Making diagnostics histograms"); |
9684be2f | 130 | fDiagStep1 = new TH2I("diagStep1", "Read ADC vs. Noise surpressed ADC", |
131 | 1024, -.5, 1023.5, 1024, -.5, 1023.5); | |
132 | fDiagStep1->SetDirectory(0); | |
133 | fDiagStep1->GetXaxis()->SetTitle("ADC (read)"); | |
134 | fDiagStep1->GetYaxis()->SetTitle(Form("ADC (noise surpressed %4.f)", | |
135 | fNoiseFactor)); | |
136 | fDiagStep2 = new TH2F("diagStep2", "ADC vs Edep deduced", | |
137 | 1024, -.5, 1023.5, 100, 0, 2); | |
138 | fDiagStep2->SetDirectory(0); | |
139 | fDiagStep2->GetXaxis()->SetTitle("ADC (noise surpressed)"); | |
140 | fDiagStep2->GetYaxis()->SetTitle("#Delta E [GeV]"); | |
141 | fDiagStep3 = new TH2F("diagStep3", "Edep vs Edep path corrected", | |
142 | 100, 0., 2., 100, 0., 2.); | |
143 | fDiagStep3->SetDirectory(0); | |
144 | fDiagStep3->GetXaxis()->SetTitle("#Delta E [GeV]"); | |
145 | fDiagStep3->GetYaxis()->SetTitle("#Delta E/#Delta x #times #delta x [GeV]"); | |
146 | fDiagStep4 = new TH2F("diagStep4", "Edep vs Multiplicity deduced", | |
147 | 100, 0., 2., 100, -.1, 19.9); | |
148 | fDiagStep4->SetDirectory(0); | |
149 | fDiagStep4->GetXaxis()->SetTitle("#Delta E/#Delta x #times #delta x [GeV]"); | |
150 | fDiagStep4->GetYaxis()->SetTitle("Multiplicity"); | |
151 | fDiagAll = new TH2F("diagAll", "Read ADC vs Multiplicity deduced", | |
152 | 1024, -.5, 1023.5, 100, -.1, 19.9); | |
153 | fDiagAll->SetDirectory(0); | |
154 | fDiagAll->GetXaxis()->SetTitle("ADC (read)"); | |
155 | fDiagAll->GetYaxis()->SetTitle("Multiplicity"); | |
4347b38f | 156 | } |
dc8af42e | 157 | |
4347b38f | 158 | //____________________________________________________________________ |
159 | void | |
1a1fdef7 | 160 | AliFMDReconstructor::ConvertDigits(AliRawReader* reader, |
161 | TTree* digitsTree) const | |
162 | { | |
163 | // Convert Raw digits to AliFMDDigit's in a tree | |
faf80567 | 164 | AliFMDDebug(1, ("Reading raw data into digits tree")); |
75609cab | 165 | if (!digitsTree) { |
166 | AliError("No digits tree passed"); | |
167 | return; | |
168 | } | |
169 | static TClonesArray* array = new TClonesArray("AliFMDDigit"); | |
170 | digitsTree->Branch("FMD", &array); | |
182e56d0 | 171 | array->Clear(); |
75609cab | 172 | |
1a1fdef7 | 173 | AliFMDRawReader rawRead(reader, digitsTree); |
174 | // rawRead.SetSampleRate(fFMD->GetSampleRate()); | |
75609cab | 175 | // rawRead.Exec(); |
176 | rawRead.ReadAdcs(array); | |
177 | ||
178 | Int_t nWrite = digitsTree->Fill(); | |
179 | AliFMDDebug(1, ("Got a grand total of %d digits, wrote %d bytes to tree", | |
180 | array->GetEntriesFast(), nWrite)); | |
181 | ||
182 | ||
5cf05dbb | 183 | AliFMDAltroMapping* map = AliFMDParameters::Instance()->GetAltroMap(); |
184 | for (size_t i = 1; i <= 3; i++) { | |
5dd6072d | 185 | fZS[i-1] = rawRead.IsZeroSuppressed(map->Detector2DDL(i)); |
186 | fZSFactor[i-1] = rawRead.NoiseFactor(map->Detector2DDL(i)); | |
5cf05dbb | 187 | } |
4347b38f | 188 | } |
189 | ||
4347b38f | 190 | //____________________________________________________________________ |
191 | void | |
8983e5ae | 192 | AliFMDReconstructor::GetVertex(AliESDEvent* esd) const |
4347b38f | 193 | { |
97e94238 | 194 | // Return the vertex to use. |
195 | // This is obtained from the ESD object. | |
196 | // If not found, a warning is issued. | |
9684be2f | 197 | fVertexType = kNoVertex; |
198 | fCurrentVertex = 0; | |
8983e5ae | 199 | if (!esd) return; |
200 | ||
201 | const AliESDVertex* vertex = esd->GetPrimaryVertex(); | |
202 | if (!vertex) vertex = esd->GetPrimaryVertexSPD(); | |
203 | if (!vertex) vertex = esd->GetPrimaryVertexTPC(); | |
204 | if (!vertex) vertex = esd->GetVertex(); | |
205 | ||
206 | if (vertex) { | |
207 | AliFMDDebug(2, ("Got %s (%s) from ESD: %f", | |
208 | vertex->GetName(), vertex->GetTitle(), vertex->GetZv())); | |
209 | fCurrentVertex = vertex->GetZv(); | |
210 | fVertexType = kESDVertex; | |
211 | return; | |
212 | } | |
213 | else if (esd->GetESDTZERO()) { | |
214 | AliFMDDebug(2, ("Got primary vertex from T0: %f", esd->GetT0zVertex())); | |
215 | fCurrentVertex = esd->GetT0zVertex(); | |
216 | fVertexType = kESDVertex; | |
217 | return; | |
a3537838 | 218 | } |
9684be2f | 219 | AliWarning("Didn't get any vertex from ESD or generator"); |
220 | } | |
221 | ||
818fff8d | 222 | //____________________________________________________________________ |
223 | Int_t | |
224 | AliFMDReconstructor::GetIdentifier() const | |
225 | { | |
182e56d0 | 226 | // Get the detector identifier. |
227 | // Note the actual value is cached so that we do not | |
228 | // need to do many expensive string comparisons. | |
229 | static Int_t idx = AliReconstruction::GetDetIndex(GetDetectorName()); | |
230 | return idx; | |
818fff8d | 231 | } |
232 | ||
233 | //____________________________________________________________________ | |
234 | const AliFMDRecoParam* | |
235 | AliFMDReconstructor::GetParameters() const | |
236 | { | |
182e56d0 | 237 | // Get the reconstruction parameters. |
238 | // | |
239 | // Return: | |
240 | // Pointer to reconstruction parameters or null if not found or wrong type | |
241 | Int_t iDet = GetIdentifier(); // Was 12 - but changed on Cvetans request | |
818fff8d | 242 | const AliDetectorRecoParam* params = AliReconstructor::GetRecoParam(iDet); |
243 | if (!params || params->IsA() != AliFMDRecoParam::Class()) return 0; | |
244 | return static_cast<const AliFMDRecoParam*>(params); | |
245 | } | |
246 | ||
247 | //____________________________________________________________________ | |
248 | void | |
249 | AliFMDReconstructor::UseRecoParam(Bool_t set) const | |
250 | { | |
251 | static Float_t savedNoiseFactor = fNoiseFactor; | |
252 | static Bool_t savedAngleCorrect = fAngleCorrect; | |
253 | if (set) { | |
254 | const AliFMDRecoParam* params = GetParameters(); | |
255 | if (params) { | |
256 | fNoiseFactor = params->NoiseFactor(); | |
257 | fAngleCorrect = params->AngleCorrect(); | |
258 | } | |
259 | return; | |
260 | } | |
261 | fNoiseFactor = savedNoiseFactor; | |
262 | fAngleCorrect = savedAngleCorrect; | |
263 | } | |
264 | ||
265 | ||
75609cab | 266 | //____________________________________________________________________ |
267 | void | |
268 | AliFMDReconstructor::MarkDeadChannels(AliESDFMD* esd) const | |
269 | { | |
270 | // Loop over all entries of the ESD and mark | |
271 | // those that are dead as such | |
272 | // - otherwise put in the zero signal. | |
273 | AliFMDParameters* param = AliFMDParameters::Instance(); | |
274 | ||
275 | for (UShort_t d = 1; d <= 3; d++) { | |
276 | UShort_t nR = (d == 1 ? 1 : 2); | |
277 | ||
278 | for (UShort_t q = 0; q < nR; q++) { | |
279 | Char_t r = (q == 0 ? 'I' : 'O'); | |
280 | UShort_t nS = (q == 0 ? 20 : 40); | |
281 | UShort_t nT = (q == 0 ? 512 : 256); | |
282 | ||
283 | for (UShort_t s = 0; s < nS; s++) { | |
284 | for (UShort_t t = 0; t < nT; t++) { | |
182e56d0 | 285 | if (param->IsDead(d, r, s, t)) { |
286 | AliDebug(5, Form("Marking FMD%d%c[%2d,%3d] as dead", d, r, s, t)); | |
75609cab | 287 | esd->SetMultiplicity(d, r, s, t, AliESDFMD::kInvalidMult); |
182e56d0 | 288 | esd->SetEta(d, r, s, t, AliESDFMD::kInvalidEta); |
289 | } | |
290 | else if (esd->Multiplicity(d, r, s, t) == AliESDFMD::kInvalidMult) { | |
291 | AliDebug(10, Form("Setting null signal in FMD%d%c[%2d,%3d]", d, r, s, t)); | |
75609cab | 292 | esd->SetMultiplicity(d, r, s, t, 0); |
182e56d0 | 293 | } |
75609cab | 294 | } |
295 | } | |
296 | } | |
297 | } | |
298 | } | |
9684be2f | 299 | |
ddaa8027 | 300 | //____________________________________________________________________ |
301 | void | |
50b9d194 | 302 | AliFMDReconstructor::Reconstruct(AliRawReader* reader, TTree*) const |
ddaa8027 | 303 | { |
304 | // Reconstruct directly from raw data (no intermediate output on | |
305 | // digit tree or rec point tree). | |
50b9d194 | 306 | // |
ddaa8027 | 307 | // Parameters: |
308 | // reader Raw event reader | |
75609cab | 309 | // ctree Not used - 'cluster tree' to store rec-points in. |
3991ca94 | 310 | AliFMDDebug(1, ("Reconstructing from raw reader")); |
50b9d194 | 311 | AliFMDRawReader rawReader(reader, 0); |
312 | ||
313 | UShort_t det, sec, str, fac; | |
314 | Short_t adc, oldDet = -1; | |
315 | Bool_t zs; | |
316 | Char_t rng; | |
818fff8d | 317 | |
318 | UseRecoParam(kTRUE); | |
50b9d194 | 319 | while (rawReader.NextSignal(det, rng, sec, str, adc, zs, fac)) { |
320 | if (det != oldDet) { | |
321 | fZS[det-1] = zs; | |
322 | fZSFactor[det-1] = fac; | |
323 | oldDet = det; | |
324 | } | |
325 | ProcessSignal(det, rng, sec, str, adc); | |
326 | } | |
818fff8d | 327 | UseRecoParam(kFALSE); |
328 | ||
ddaa8027 | 329 | } |
330 | ||
faf80567 | 331 | //____________________________________________________________________ |
332 | void | |
333 | AliFMDReconstructor::Digitize(AliRawReader* reader, TClonesArray* sdigits) const | |
334 | { | |
335 | // Reconstruct directly from raw data (no intermediate output on | |
336 | // digit tree or rec point tree). | |
337 | // | |
338 | // Parameters: | |
339 | // reader Raw event reader | |
340 | // ctree Not used. | |
341 | AliFMDRawReader rawReader(reader, 0); | |
342 | ||
343 | UShort_t det, sec, str, sam, rat, fac; | |
344 | Short_t adc, oldDet = -1; | |
345 | Bool_t zs; | |
346 | Char_t rng; | |
347 | ||
818fff8d | 348 | UseRecoParam(kTRUE); |
faf80567 | 349 | while (rawReader.NextSample(det, rng, sec, str, sam, rat, adc, zs, fac)) { |
350 | if (!rawReader.SelectSample(sam, rat)) continue; | |
351 | if (det != oldDet) { | |
352 | fZS[det-1] = zs; | |
353 | fZSFactor[det-1] = fac; | |
354 | oldDet = det; | |
355 | } | |
356 | DigitizeSignal(sdigits, det, rng, sec, str, sam, adc); | |
357 | } | |
818fff8d | 358 | UseRecoParam(kFALSE); |
faf80567 | 359 | } |
360 | ||
9684be2f | 361 | //____________________________________________________________________ |
362 | void | |
363 | AliFMDReconstructor::Reconstruct(TTree* digitsTree, | |
364 | TTree* clusterTree) const | |
365 | { | |
366 | // Reconstruct event from digits in tree | |
367 | // Get the FMD branch holding the digits. | |
368 | // FIXME: The vertex may not be known yet, so we may have to move | |
369 | // some of this to FillESD. | |
50b9d194 | 370 | // |
371 | // Parameters: | |
372 | // digitsTree Pointer to a tree containing digits | |
373 | // clusterTree Pointer to output tree | |
374 | // | |
75609cab | 375 | if (!fMult) fMult = new TClonesArray("AliFMDRecPoint"); |
376 | ||
3991ca94 | 377 | AliFMDDebug(1, ("Reconstructing from digits in a tree")); |
8983e5ae | 378 | GetVertex(fESD); |
86878381 | 379 | |
75609cab | 380 | |
381 | ||
86878381 | 382 | static TClonesArray* digits = new TClonesArray("AliFMDDigit"); |
75609cab | 383 | TBranch* digitBranch = digitsTree->GetBranch("FMD"); |
4347b38f | 384 | if (!digitBranch) { |
1a1fdef7 | 385 | Error("Exec", "No digit branch for the FMD found"); |
386 | return; | |
4347b38f | 387 | } |
1a1fdef7 | 388 | digitBranch->SetAddress(&digits); |
4347b38f | 389 | |
75609cab | 390 | if (digits) digits->Clear(); |
8f6ee336 | 391 | if (fMult) fMult->Clear(); |
392 | if (fESDObj) fESDObj->Clear(); | |
393 | ||
394 | fNMult = 0; | |
395 | fTreeR = clusterTree; | |
396 | fTreeR->Branch("FMD", &fMult); | |
397 | ||
f95a63c4 | 398 | AliFMDDebug(5, ("Getting entry 0 from digit branch")); |
1a1fdef7 | 399 | digitBranch->GetEntry(0); |
400 | ||
3991ca94 | 401 | AliFMDDebug(5, ("Processing digits")); |
818fff8d | 402 | UseRecoParam(kTRUE); |
e802be3e | 403 | ProcessDigits(digits); |
818fff8d | 404 | UseRecoParam(kFALSE); |
e802be3e | 405 | |
8f6ee336 | 406 | Int_t written = clusterTree->Fill(); |
f95a63c4 | 407 | AliFMDDebug(10, ("Filled %d bytes into cluster tree", written)); |
75609cab | 408 | // digits->Delete(); |
86878381 | 409 | // delete digits; |
4347b38f | 410 | } |
1a1fdef7 | 411 | |
8f6ee336 | 412 | |
4347b38f | 413 | //____________________________________________________________________ |
e802be3e | 414 | void |
415 | AliFMDReconstructor::ProcessDigits(TClonesArray* digits) const | |
4347b38f | 416 | { |
69b696b9 | 417 | // For each digit, find the pseudo rapdity, azimuthal angle, and |
418 | // number of corrected ADC counts, and pass it on to the algorithms | |
419 | // used. | |
50b9d194 | 420 | // |
421 | // Parameters: | |
422 | // digits Array of digits | |
423 | // | |
e802be3e | 424 | Int_t nDigits = digits->GetEntries(); |
3991ca94 | 425 | AliFMDDebug(2, ("Got %d digits", nDigits)); |
a9579262 | 426 | fESDObj->SetNoiseFactor(fNoiseFactor); |
427 | fESDObj->SetAngleCorrected(fAngleCorrect); | |
e802be3e | 428 | for (Int_t i = 0; i < nDigits; i++) { |
429 | AliFMDDigit* digit = static_cast<AliFMDDigit*>(digits->At(i)); | |
50b9d194 | 430 | if (!digit) continue; |
431 | ProcessDigit(digit); | |
432 | } | |
433 | } | |
8f6ee336 | 434 | |
50b9d194 | 435 | //____________________________________________________________________ |
436 | void | |
437 | AliFMDReconstructor::ProcessDigit(AliFMDDigit* digit) const | |
438 | { | |
439 | UShort_t det = digit->Detector(); | |
440 | Char_t rng = digit->Ring(); | |
441 | UShort_t sec = digit->Sector(); | |
442 | UShort_t str = digit->Strip(); | |
443 | Short_t adc = digit->Counts(); | |
a0354a2a | 444 | |
50b9d194 | 445 | ProcessSignal(det, rng, sec, str, adc); |
446 | } | |
447 | ||
448 | //____________________________________________________________________ | |
449 | void | |
450 | AliFMDReconstructor::ProcessSignal(UShort_t det, | |
451 | Char_t rng, | |
452 | UShort_t sec, | |
453 | UShort_t str, | |
454 | Short_t adc) const | |
455 | { | |
456 | // Process the signal from a single strip | |
457 | // | |
458 | // Parameters: | |
459 | // det Detector ID | |
460 | // rng Ring ID | |
461 | // sec Sector ID | |
462 | // rng Strip ID | |
463 | // adc ADC counts | |
464 | // | |
465 | AliFMDParameters* param = AliFMDParameters::Instance(); | |
466 | // Check that the strip is not marked as dead | |
467 | if (param->IsDead(det, rng, sec, str)) { | |
86878381 | 468 | AliFMDDebug(1, ("FMD%d%c[%2d,%3d] is dead", det, rng, sec, str)); |
50b9d194 | 469 | return; |
470 | } | |
471 | ||
472 | // digit->Print(); | |
473 | // Get eta and phi | |
474 | Float_t eta, phi; | |
475 | PhysicalCoordinates(det, rng, sec, str, eta, phi); | |
4347b38f | 476 | |
50b9d194 | 477 | // Substract pedestal. |
478 | UShort_t counts = SubtractPedestal(det, rng, sec, str, adc); | |
479 | if(counts == USHRT_MAX) return; | |
480 | ||
8f6ee336 | 481 | // Gain match digits. |
50b9d194 | 482 | Double_t edep = Adc2Energy(det, rng, sec, str, eta, counts); |
483 | // Get rid of nonsense energy | |
484 | if(edep < 0) return; | |
485 | ||
486 | // Make rough multiplicity | |
487 | Double_t mult = Energy2Multiplicity(det, rng, sec, str, edep); | |
488 | // Get rid of nonsense mult | |
6eb2922a | 489 | //if (mult > 20) { |
490 | // AliWarning(Form("The mutliplicity in FMD%d%c[%2d,%3d]=%f > 20 " | |
491 | // "(ADC: %d, Energy: %f)", det, rng, sec, str, mult, | |
492 | // counts, edep)); | |
493 | // } | |
50b9d194 | 494 | if (mult < 0) return; |
3991ca94 | 495 | AliFMDDebug(10, ("FMD%d%c[%2d,%3d]: " |
50b9d194 | 496 | "ADC: %d, Counts: %d, Energy: %f, Mult: %f", |
497 | det, rng, sec, str, adc, counts, edep, mult)); | |
498 | ||
499 | // Create a `RecPoint' on the output branch. | |
500 | if (fMult) { | |
501 | AliFMDRecPoint* m = | |
502 | new ((*fMult)[fNMult]) AliFMDRecPoint(det, rng, sec, str, | |
503 | eta, phi, edep, mult); | |
504 | (void)m; // Suppress warnings about unused variables. | |
505 | fNMult++; | |
4347b38f | 506 | } |
50b9d194 | 507 | |
508 | fESDObj->SetMultiplicity(det, rng, sec, str, mult); | |
509 | fESDObj->SetEta(det, rng, sec, str, eta); | |
510 | ||
511 | if (fDiagAll) fDiagAll->Fill(adc, mult); | |
512 | ||
4347b38f | 513 | } |
8f6ee336 | 514 | |
faf80567 | 515 | //____________________________________________________________________ |
516 | void | |
517 | AliFMDReconstructor::DigitizeSignal(TClonesArray* sdigits, | |
518 | UShort_t det, | |
519 | Char_t rng, | |
520 | UShort_t sec, | |
521 | UShort_t str, | |
522 | UShort_t /* sam */, | |
523 | Short_t adc) const | |
524 | { | |
525 | // Process the signal from a single strip | |
526 | // | |
527 | // Parameters: | |
528 | // det Detector ID | |
529 | // rng Ring ID | |
530 | // sec Sector ID | |
531 | // rng Strip ID | |
532 | // adc ADC counts | |
533 | // | |
534 | AliFMDParameters* param = AliFMDParameters::Instance(); | |
535 | // Check that the strip is not marked as dead | |
536 | if (param->IsDead(det, rng, sec, str)) { | |
537 | AliFMDDebug(10, ("FMD%d%c[%2d,%3d] is dead", det, rng, sec, str)); | |
538 | return; | |
539 | } | |
540 | ||
541 | // Substract pedestal. | |
542 | UShort_t counts = SubtractPedestal(det, rng, sec, str, adc); | |
543 | if(counts == USHRT_MAX || counts == 0) return; | |
544 | ||
545 | // Gain match digits. | |
546 | Double_t edep = Adc2Energy(det, rng, sec, str, counts); | |
547 | // Get rid of nonsense energy | |
548 | if(edep < 0) return; | |
549 | ||
550 | Int_t n = sdigits->GetEntriesFast(); | |
551 | // AliFMDSDigit* sdigit = | |
552 | new ((*sdigits)[n]) | |
553 | AliFMDSDigit(det, rng, sec, str, edep, counts, counts, counts, counts); | |
554 | // sdigit->SetCount(sam, counts); | |
555 | } | |
556 | ||
557 | //____________________________________________________________________ | |
558 | UShort_t | |
559 | AliFMDReconstructor::SubtractPedestal(UShort_t det, | |
560 | Char_t rng, | |
561 | UShort_t sec, | |
562 | UShort_t str, | |
563 | UShort_t adc, | |
564 | Float_t noiseFactor, | |
565 | Bool_t zsEnabled, | |
566 | UShort_t zsNoiseFactor) const | |
567 | { | |
568 | AliFMDParameters* param = AliFMDParameters::Instance(); | |
569 | Float_t ped = (zsEnabled ? 0 : | |
570 | param->GetPedestal(det, rng, sec, str)); | |
571 | Float_t noise = param->GetPedestalWidth(det, rng, sec, str); | |
572 | if(ped < 0 || noise < 0) { | |
573 | AliWarningClass(Form("Invalid pedestal (%f) or noise (%f) " | |
574 | "for FMD%d%c[%02d,%03d]", | |
575 | ped, noise, det, rng, sec, str)); | |
576 | return USHRT_MAX; | |
577 | } | |
578 | AliDebugClass(15, Form("Subtracting pedestal for FMD%d%c[%2d,%3d]=%4d " | |
579 | "(%s w/factor %d, noise factor %f, " | |
580 | "pedestal %8.2f+/-%8.2f)", | |
581 | det, rng, sec, str, adc, | |
582 | (zsEnabled ? "zs'ed" : "straight"), | |
583 | zsNoiseFactor, noiseFactor, ped, noise)); | |
584 | ||
585 | Int_t counts = adc + Int_t(zsEnabled ? zsNoiseFactor * noise : - ped); | |
586 | counts = TMath::Max(Int_t(counts), 0); | |
587 | // Calculate the noise factor for suppressing remenants of the noise | |
588 | // peak. If we have done on-line zero suppression, we only check | |
589 | // for noise signals that are larger than the suppressed noise. If | |
590 | // the noise factor used on line is larger than the factor used | |
591 | // here, we do not do this check at all. | |
592 | // | |
593 | // For example: | |
594 | // Online factor | Read factor | Result | |
595 | // ---------------+--------------+------------------------------- | |
596 | // 2 | 3 | Check if signal > 1 * noise | |
597 | // 3 | 3 | Check if signal > 0 | |
598 | // 3 | 2 | Check if signal > 0 | |
599 | // | |
600 | // In this way, we make sure that we do not suppress away too much | |
601 | // data, and that the read-factor is the most stringent cut. | |
602 | Float_t nf = TMath::Max(0.F, noiseFactor - (zsEnabled ? zsNoiseFactor : 0)); | |
603 | if (counts < noise * nf) counts = 0; | |
604 | if (counts > 0) AliDebugClass(15, "Got a hit strip"); | |
605 | ||
86878381 | 606 | UShort_t ret = counts < 0 ? 0 : counts; |
607 | return ret; | |
faf80567 | 608 | } |
50b9d194 | 609 | |
610 | ||
1a1fdef7 | 611 | //____________________________________________________________________ |
612 | UShort_t | |
50b9d194 | 613 | AliFMDReconstructor::SubtractPedestal(UShort_t det, |
614 | Char_t rng, | |
615 | UShort_t sec, | |
616 | UShort_t str, | |
617 | Short_t adc) const | |
1a1fdef7 | 618 | { |
619 | // Member function to subtract the pedestal from a digit | |
50b9d194 | 620 | // |
621 | // Parameters: | |
622 | // det Detector ID | |
623 | // rng Ring ID | |
624 | // sec Sector ID | |
625 | // rng Strip ID | |
626 | // adc # of ADC counts | |
627 | // Return: | |
628 | // Pedestal subtracted signal or USHRT_MAX in case of problems | |
629 | // | |
faf80567 | 630 | UShort_t counts = SubtractPedestal(det, rng, sec, str, adc, |
631 | fNoiseFactor, fZS[det-1], | |
632 | fZSFactor[det-1]); | |
9684be2f | 633 | if (fDiagStep1) fDiagStep1->Fill(adc, counts); |
8f6ee336 | 634 | |
faf80567 | 635 | return counts; |
1a1fdef7 | 636 | } |
637 | ||
8f6ee336 | 638 | //____________________________________________________________________ |
639 | Float_t | |
50b9d194 | 640 | AliFMDReconstructor::Adc2Energy(UShort_t det, |
641 | Char_t rng, | |
642 | UShort_t sec, | |
643 | UShort_t str, | |
50b9d194 | 644 | UShort_t count) const |
8f6ee336 | 645 | { |
646 | // Converts number of ADC counts to energy deposited. | |
647 | // Note, that this member function can be overloaded by derived | |
648 | // classes to do strip-specific look-ups in databases or the like, | |
649 | // to find the proper gain for a strip. | |
650 | // | |
68aba90a | 651 | // In the first simple version, we calculate the energy deposited as |
8f6ee336 | 652 | // |
653 | // EnergyDeposited = cos(theta) * gain * count | |
654 | // | |
655 | // where | |
656 | // | |
657 | // Pre_amp_MIP_Range | |
658 | // gain = ----------------- * Energy_deposited_per_MIP | |
659 | // ADC_channel_size | |
660 | // | |
661 | // is constant and the same for all strips. | |
68aba90a | 662 | // |
663 | // For the production we use the conversion measured in the NBI lab. | |
664 | // The total conversion is then: | |
50b9d194 | 665 | // |
666 | // gain = ADC / DAC | |
667 | // | |
668 | // EdepMip * count | |
669 | // => energy = ---------------- | |
670 | // gain * DACPerADC | |
671 | // | |
672 | // Parameters: | |
673 | // det Detector ID | |
674 | // rng Ring ID | |
675 | // sec Sector ID | |
676 | // rng Strip ID | |
50b9d194 | 677 | // counts Number of ADC counts over pedestal |
678 | // Return | |
679 | // The energy deposited in a single strip, or -1 in case of problems | |
68aba90a | 680 | // |
a9579262 | 681 | if (count <= 0) return 0; |
8f6ee336 | 682 | AliFMDParameters* param = AliFMDParameters::Instance(); |
50b9d194 | 683 | Float_t gain = param->GetPulseGain(det, rng, sec, str); |
68aba90a | 684 | // 'Tagging' bad gains as bad energy |
685 | if (gain < 0) { | |
50b9d194 | 686 | AliWarning(Form("Invalid gain (%f) for FMD%d%c[%02d,%03d]", |
687 | gain, det, rng, sec, str)); | |
68aba90a | 688 | return -1; |
689 | } | |
50b9d194 | 690 | AliFMDDebug(5, ("Converting counts %d to energy (factor=%f, DAC2MIP=%f)", |
68aba90a | 691 | count, gain,param->GetDACPerMIP())); |
a9579262 | 692 | |
50b9d194 | 693 | Double_t edep = ((count * param->GetEdepMip()) |
694 | / (gain * param->GetDACPerMIP())); | |
faf80567 | 695 | return edep; |
696 | } | |
697 | ||
698 | //____________________________________________________________________ | |
699 | Float_t | |
700 | AliFMDReconstructor::Adc2Energy(UShort_t det, | |
701 | Char_t rng, | |
702 | UShort_t sec, | |
703 | UShort_t str, | |
704 | Float_t eta, | |
705 | UShort_t count) const | |
706 | { | |
707 | // Converts number of ADC counts to energy deposited. | |
708 | // Note, that this member function can be overloaded by derived | |
709 | // classes to do strip-specific look-ups in databases or the like, | |
710 | // to find the proper gain for a strip. | |
711 | // | |
712 | // In the first simple version, we calculate the energy deposited as | |
713 | // | |
714 | // EnergyDeposited = cos(theta) * gain * count | |
715 | // | |
716 | // where | |
717 | // | |
718 | // Pre_amp_MIP_Range | |
719 | // gain = ----------------- * Energy_deposited_per_MIP | |
720 | // ADC_channel_size | |
721 | // | |
722 | // is constant and the same for all strips. | |
723 | // | |
724 | // For the production we use the conversion measured in the NBI lab. | |
725 | // The total conversion is then: | |
726 | // | |
727 | // gain = ADC / DAC | |
728 | // | |
729 | // EdepMip * count | |
730 | // => energy = ---------------- | |
731 | // gain * DACPerADC | |
732 | // | |
733 | // Parameters: | |
734 | // det Detector ID | |
735 | // rng Ring ID | |
736 | // sec Sector ID | |
737 | // rng Strip ID | |
738 | // eta Psuedo-rapidity | |
739 | // counts Number of ADC counts over pedestal | |
740 | // Return | |
741 | // The energy deposited in a single strip, or -1 in case of problems | |
742 | // | |
743 | Double_t edep = Adc2Energy(det, rng, sec, str, count); | |
744 | ||
9684be2f | 745 | if (fDiagStep2) fDiagStep2->Fill(count, edep); |
a9579262 | 746 | if (fAngleCorrect) { |
9684be2f | 747 | Double_t theta = 2 * TMath::ATan(TMath::Exp(-eta)); |
748 | Double_t corr = TMath::Abs(TMath::Cos(theta)); | |
749 | Double_t cedep = corr * edep; | |
f95a63c4 | 750 | AliFMDDebug(10, ("correcting for path %f * %f = %f (eta=%f, theta=%f)", |
9684be2f | 751 | edep, corr, cedep, eta, theta)); |
752 | if (fDiagStep3) fDiagStep3->Fill(edep, cedep); | |
753 | edep = cedep; | |
a9579262 | 754 | } |
8f6ee336 | 755 | return edep; |
756 | } | |
757 | ||
758 | //____________________________________________________________________ | |
759 | Float_t | |
50b9d194 | 760 | AliFMDReconstructor::Energy2Multiplicity(UShort_t /*det*/, |
761 | Char_t /*rng*/, | |
762 | UShort_t /*sec*/, | |
763 | UShort_t /*str*/, | |
764 | Float_t edep) const | |
8f6ee336 | 765 | { |
766 | // Converts an energy signal to number of particles. | |
767 | // Note, that this member function can be overloaded by derived | |
768 | // classes to do strip-specific look-ups in databases or the like, | |
769 | // to find the proper gain for a strip. | |
770 | // | |
771 | // In this simple version, we calculate the multiplicity as | |
772 | // | |
773 | // multiplicity = Energy_deposited / Energy_deposited_per_MIP | |
774 | // | |
775 | // where | |
776 | // | |
777 | // Energy_deposited_per_MIP = 1.664 * SI_density * SI_thickness | |
778 | // | |
779 | // is constant and the same for all strips | |
50b9d194 | 780 | // |
781 | // Parameters: | |
782 | // det Detector ID | |
783 | // rng Ring ID | |
784 | // sec Sector ID | |
785 | // rng Strip ID | |
786 | // edep Energy deposited in a single strip | |
787 | // Return | |
788 | // The "bare" multiplicity corresponding to the energy deposited | |
8f6ee336 | 789 | AliFMDParameters* param = AliFMDParameters::Instance(); |
790 | Double_t edepMIP = param->GetEdepMip(); | |
791 | Float_t mult = edep / edepMIP; | |
68aba90a | 792 | #if 0 |
8f6ee336 | 793 | if (edep > 0) |
f95a63c4 | 794 | AliFMDDebug(15, ("Translating energy %f to multiplicity via " |
8f6ee336 | 795 | "divider %f->%f", edep, edepMIP, mult)); |
68aba90a | 796 | #endif |
9684be2f | 797 | if (fDiagStep4) fDiagStep4->Fill(edep, mult); |
8f6ee336 | 798 | return mult; |
799 | } | |
800 | ||
801 | //____________________________________________________________________ | |
802 | void | |
50b9d194 | 803 | AliFMDReconstructor::PhysicalCoordinates(UShort_t det, |
804 | Char_t rng, | |
805 | UShort_t sec, | |
806 | UShort_t str, | |
8f6ee336 | 807 | Float_t& eta, |
808 | Float_t& phi) const | |
809 | { | |
810 | // Get the eta and phi of a digit | |
811 | // | |
50b9d194 | 812 | // Parameters: |
813 | // det Detector ID | |
814 | // rng Ring ID | |
815 | // sec Sector ID | |
816 | // rng Strip ID | |
817 | // eta On return, contains the psuedo-rapidity of the strip | |
818 | // phi On return, contains the azimuthal angle of the strip | |
819 | // | |
9b48326f | 820 | AliFMDGeometry* geom = AliFMDGeometry::Instance(); |
75609cab | 821 | Double_t x, y, z, r, theta, deta, dphi; |
50b9d194 | 822 | geom->Detector2XYZ(det, rng, sec, str, x, y, z); |
75609cab | 823 | |
bf000c32 | 824 | // Correct for vertex offset. |
8161c5f7 | 825 | z -= fCurrentVertex; |
75609cab | 826 | AliFMDGeometry::XYZ2REtaPhiTheta(x, y, z, r, deta, dphi, theta); |
827 | eta = deta; | |
828 | phi = dphi; | |
8f6ee336 | 829 | } |
830 | ||
182e56d0 | 831 | namespace { |
832 | class ESDPrinter : public AliESDFMD::ForOne | |
833 | { | |
834 | public: | |
835 | ESDPrinter() {} | |
836 | Bool_t operator()(UShort_t d, Char_t r, UShort_t s, UShort_t t, | |
837 | Float_t m, Float_t e) | |
838 | { | |
839 | if (m > 0 && m != AliESDFMD::kInvalidMult) | |
840 | printf(" FMD%d%c[%2d,%3d] = %6.3f / %6.3f\n", d, r, s, t, m, e); | |
841 | return kTRUE; | |
842 | } | |
843 | }; | |
844 | } | |
845 | ||
8f6ee336 | 846 | |
4347b38f | 847 | //____________________________________________________________________ |
848 | void | |
1a1fdef7 | 849 | AliFMDReconstructor::FillESD(TTree* /* digitsTree */, |
850 | TTree* /* clusterTree */, | |
af885e0f | 851 | AliESDEvent* esd) const |
121a60bd | 852 | { |
42403906 | 853 | // nothing to be done |
69b696b9 | 854 | // FIXME: The vertex may not be known when Reconstruct is executed, |
855 | // so we may have to move some of that member function here. | |
f95a63c4 | 856 | AliFMDDebug(2, ("Calling FillESD with two trees and one ESD")); |
8f6ee336 | 857 | // fESDObj->Print(); |
858 | ||
75609cab | 859 | // Fix up ESD so that only truely dead channels get the kInvalidMult flag. |
860 | MarkDeadChannels(fESDObj); | |
861 | ||
50b9d194 | 862 | Double_t oldVz = fCurrentVertex; |
8983e5ae | 863 | GetVertex(esd); |
50b9d194 | 864 | if (fVertexType != kNoVertex) { |
865 | AliFMDDebug(2, ("Revertexing the ESD data to vz=%f (was %f)", | |
866 | fCurrentVertex, oldVz)); | |
867 | AliFMDESDRevertexer revertexer; | |
868 | revertexer.Revertex(fESDObj, fCurrentVertex); | |
869 | } | |
182e56d0 | 870 | |
871 | if (AliDebugLevel() > 10) { | |
872 | ESDPrinter p; | |
873 | fESDObj->ForEach(p); | |
874 | } | |
50b9d194 | 875 | |
8f6ee336 | 876 | if (esd) { |
f95a63c4 | 877 | AliFMDDebug(2, ("Writing FMD data to ESD tree")); |
8f6ee336 | 878 | esd->SetFMDData(fESDObj); |
a3537838 | 879 | } |
9684be2f | 880 | |
881 | if (!fDiagnostics || !esd) return; | |
882 | static bool first = true; | |
69893a66 | 883 | // This is most likely NOT the event number you'd like to use. It |
884 | // has nothing to do with the 'real' event number. | |
885 | // - That's OK. We just use it for the name of the directory - | |
886 | // nothing else. Christian | |
887 | Int_t evno = esd->GetEventNumberInFile(); | |
3991ca94 | 888 | AliFMDDebug(3, ("Writing diagnostics histograms to FMD.Diag.root/%03d",evno)); |
9684be2f | 889 | TFile f("FMD.Diag.root", (first ? "RECREATE" : "UPDATE")); |
890 | first = false; | |
891 | f.cd(); | |
892 | TDirectory* d = f.mkdir(Form("%03d", evno), | |
893 | Form("Diagnostics histograms for event # %d", evno)); | |
894 | d->cd(); | |
895 | if (fDiagStep1) fDiagStep1->Write(); | |
896 | if (fDiagStep2) fDiagStep2->Write(); | |
897 | if (fDiagStep3) fDiagStep3->Write(); | |
898 | if (fDiagStep4) fDiagStep4->Write(); | |
899 | if (fDiagAll) fDiagAll->Write(); | |
900 | d->Write(); | |
901 | f.Write(); | |
902 | f.Close(); | |
903 | ||
904 | if (fDiagStep1) fDiagStep1->Reset(); | |
905 | if (fDiagStep2) fDiagStep2->Reset(); | |
906 | if (fDiagStep3) fDiagStep3->Reset(); | |
907 | if (fDiagStep4) fDiagStep4->Reset(); | |
908 | if (fDiagAll) fDiagAll->Reset(); | |
121a60bd | 909 | } |
910 | ||
ddaa8027 | 911 | //____________________________________________________________________ |
912 | void | |
913 | AliFMDReconstructor::FillESD(AliRawReader*, TTree* clusterTree, | |
914 | AliESDEvent* esd) const | |
915 | { | |
916 | TTree* dummy = 0; | |
917 | FillESD(dummy, clusterTree, esd); | |
918 | } | |
42403906 | 919 | //____________________________________________________________________ |
920 | // | |
921 | // EOF | |
922 | // |