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09b6c804 | 1 | //____________________________________________________________________ |
2 | // | |
3 | // This is a class that constructs AliFMDRecPoint objects from of Digits | |
4 | // This class reads either digits from a TClonesArray or raw data from | |
5 | // a DDL file (or similar), and stores the read ADC counts in an | |
6 | // internal cache (fAdcs). The rec-points are made via the naiive | |
7 | // method. | |
8 | // | |
9 | //-- Authors: Evgeny Karpechev(INR) and Alla Maevsksia | |
10 | // Latest changes by Christian Holm Christensen <cholm@nbi.dk> | |
11 | // | |
12 | // | |
13 | //____________________________________________________________________ | |
37c55dc0 | 14 | /************************************************************************** |
15 | * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. * | |
16 | * * | |
17 | * Author: The ALICE Off-line Project. * | |
18 | * Contributors are mentioned in the code where appropriate. * | |
19 | * * | |
20 | * Permission to use, copy, modify and distribute this software and its * | |
21 | * documentation strictly for non-commercial purposes is hereby granted * | |
22 | * without fee, provided that the above copyright notice appears in all * | |
23 | * copies and that both the copyright notice and this permission notice * | |
24 | * appear in the supporting documentation. The authors make no claims * | |
25 | * about the suitability of this software for any purpose. It is * | |
26 | * provided "as is" without express or implied warranty. * | |
27 | **************************************************************************/ | |
0d0e6995 | 28 | /* $Id$ */ |
09b6c804 | 29 | /** |
30 | * @file AliFMDReconstructor.cxx | |
31 | * @author Christian Holm Christensen <cholm@nbi.dk> | |
32 | * @date Mon Mar 27 12:47:09 2006 | |
33 | * @brief FMD reconstruction | |
c2fc1258 | 34 | */ |
37c55dc0 | 35 | |
f95a63c4 | 36 | // #include <AliLog.h> // ALILOG_H |
6169f936 | 37 | // #include <AliRun.h> // ALIRUN_H |
f95a63c4 | 38 | #include "AliFMDDebug.h" |
1a1fdef7 | 39 | #include "AliFMDGeometry.h" // ALIFMDGEOMETRY_H |
40 | #include "AliFMDParameters.h" // ALIFMDPARAMETERS_H | |
5cf05dbb | 41 | #include "AliFMDAltroMapping.h" // ALIFMDALTROMAPPING_H |
56b1929b | 42 | #include "AliFMDDigit.h" // ALIFMDDIGIT_H |
faf80567 | 43 | #include "AliFMDSDigit.h" // ALIFMDDIGIT_H |
56b1929b | 44 | #include "AliFMDReconstructor.h" // ALIFMDRECONSTRUCTOR_H |
818fff8d | 45 | #include "AliFMDRecoParam.h" // ALIFMDRECOPARAM_H |
56b1929b | 46 | #include "AliFMDRawReader.h" // ALIFMDRAWREADER_H |
bf000c32 | 47 | #include "AliFMDRecPoint.h" // ALIFMDMULTNAIIVE_H |
af885e0f | 48 | #include "AliESDEvent.h" // ALIESDEVENT_H |
aad72f45 | 49 | #include "AliESDVertex.h" // ALIESDVERTEX_H |
50b9d194 | 50 | #include "AliESDTZERO.h" // ALIESDVERTEX_H |
8f6ee336 | 51 | #include <AliESDFMD.h> // ALIESDFMD_H |
aad72f45 | 52 | #include <TMath.h> |
9684be2f | 53 | #include <TH1.h> |
54 | #include <TH2.h> | |
55 | #include <TFile.h> | |
68aba90a | 56 | #include <climits> |
86878381 | 57 | #include "AliFMDESDRevertexer.h" |
50b9d194 | 58 | |
68aba90a | 59 | |
02a27b50 | 60 | class AliRawReader; |
4347b38f | 61 | |
62 | //____________________________________________________________________ | |
925e6570 | 63 | ClassImp(AliFMDReconstructor) |
1a1fdef7 | 64 | #if 0 |
65 | ; // This is here to keep Emacs for indenting the next line | |
66 | #endif | |
37c55dc0 | 67 | |
4347b38f | 68 | //____________________________________________________________________ |
69 | AliFMDReconstructor::AliFMDReconstructor() | |
70 | : AliReconstructor(), | |
e9fd1e20 | 71 | fMult(0x0), |
72 | fNMult(0), | |
73 | fTreeR(0x0), | |
74 | fCurrentVertex(0), | |
75 | fESDObj(0x0), | |
9684be2f | 76 | fNoiseFactor(0), |
77 | fAngleCorrect(kTRUE), | |
78 | fVertexType(kNoVertex), | |
9684be2f | 79 | fESD(0x0), |
488faace | 80 | fDiagnostics(kFALSE), |
9684be2f | 81 | fDiagStep1(0), |
82 | fDiagStep2(0), | |
83 | fDiagStep3(0), | |
84 | fDiagStep4(0), | |
85 | fDiagAll(0) | |
4347b38f | 86 | { |
8f6ee336 | 87 | // Make a new FMD reconstructor object - default CTOR. |
a9579262 | 88 | SetNoiseFactor(); |
89 | SetAngleCorrect(); | |
9b98d361 | 90 | if (AliDebugLevel() > 0) fDiagnostics = kTRUE; |
030d93c1 | 91 | for(Int_t det = 1; det<=3; det++) { |
92 | fZS[det-1] = kFALSE; | |
93 | fZSFactor[det-1] = 0; | |
94 | } | |
4347b38f | 95 | } |
56b1929b | 96 | |
97 | //____________________________________________________________________ | |
98 | AliFMDReconstructor::~AliFMDReconstructor() | |
99 | { | |
100 | // Destructor | |
8f6ee336 | 101 | if (fMult) fMult->Delete(); |
102 | if (fMult) delete fMult; | |
103 | if (fESDObj) delete fESDObj; | |
56b1929b | 104 | } |
4347b38f | 105 | |
106 | //____________________________________________________________________ | |
107 | void | |
d76c31f4 | 108 | AliFMDReconstructor::Init() |
1a1fdef7 | 109 | { |
110 | // Initialize the reconstructor | |
f011bd38 | 111 | |
bf000c32 | 112 | // Initialize the geometry |
9b48326f | 113 | AliFMDGeometry* geom = AliFMDGeometry::Instance(); |
114 | geom->Init(); | |
115 | geom->InitTransformations(); | |
116 | ||
117 | // Initialize the parameters | |
118 | AliFMDParameters* param = AliFMDParameters::Instance(); | |
119 | param->Init(); | |
bf000c32 | 120 | |
8f6ee336 | 121 | // Current vertex position |
1a1fdef7 | 122 | fCurrentVertex = 0; |
8f6ee336 | 123 | // Create array of reconstructed strip multiplicities |
75609cab | 124 | // fMult = new TClonesArray("AliFMDRecPoint", 51200); |
8f6ee336 | 125 | // Create ESD output object |
126 | fESDObj = new AliESDFMD; | |
127 | ||
9684be2f | 128 | // Check if we need diagnostics histograms |
129 | if (!fDiagnostics) return; | |
9b98d361 | 130 | AliInfo("Making diagnostics histograms"); |
9684be2f | 131 | fDiagStep1 = new TH2I("diagStep1", "Read ADC vs. Noise surpressed ADC", |
132 | 1024, -.5, 1023.5, 1024, -.5, 1023.5); | |
133 | fDiagStep1->SetDirectory(0); | |
134 | fDiagStep1->GetXaxis()->SetTitle("ADC (read)"); | |
135 | fDiagStep1->GetYaxis()->SetTitle(Form("ADC (noise surpressed %4.f)", | |
136 | fNoiseFactor)); | |
137 | fDiagStep2 = new TH2F("diagStep2", "ADC vs Edep deduced", | |
138 | 1024, -.5, 1023.5, 100, 0, 2); | |
139 | fDiagStep2->SetDirectory(0); | |
140 | fDiagStep2->GetXaxis()->SetTitle("ADC (noise surpressed)"); | |
141 | fDiagStep2->GetYaxis()->SetTitle("#Delta E [GeV]"); | |
142 | fDiagStep3 = new TH2F("diagStep3", "Edep vs Edep path corrected", | |
143 | 100, 0., 2., 100, 0., 2.); | |
144 | fDiagStep3->SetDirectory(0); | |
145 | fDiagStep3->GetXaxis()->SetTitle("#Delta E [GeV]"); | |
146 | fDiagStep3->GetYaxis()->SetTitle("#Delta E/#Delta x #times #delta x [GeV]"); | |
147 | fDiagStep4 = new TH2F("diagStep4", "Edep vs Multiplicity deduced", | |
148 | 100, 0., 2., 100, -.1, 19.9); | |
149 | fDiagStep4->SetDirectory(0); | |
150 | fDiagStep4->GetXaxis()->SetTitle("#Delta E/#Delta x #times #delta x [GeV]"); | |
151 | fDiagStep4->GetYaxis()->SetTitle("Multiplicity"); | |
152 | fDiagAll = new TH2F("diagAll", "Read ADC vs Multiplicity deduced", | |
153 | 1024, -.5, 1023.5, 100, -.1, 19.9); | |
154 | fDiagAll->SetDirectory(0); | |
155 | fDiagAll->GetXaxis()->SetTitle("ADC (read)"); | |
156 | fDiagAll->GetYaxis()->SetTitle("Multiplicity"); | |
4347b38f | 157 | } |
dc8af42e | 158 | |
4347b38f | 159 | //____________________________________________________________________ |
160 | void | |
1a1fdef7 | 161 | AliFMDReconstructor::ConvertDigits(AliRawReader* reader, |
162 | TTree* digitsTree) const | |
163 | { | |
164 | // Convert Raw digits to AliFMDDigit's in a tree | |
faf80567 | 165 | AliFMDDebug(1, ("Reading raw data into digits tree")); |
75609cab | 166 | if (!digitsTree) { |
167 | AliError("No digits tree passed"); | |
168 | return; | |
169 | } | |
170 | static TClonesArray* array = new TClonesArray("AliFMDDigit"); | |
171 | digitsTree->Branch("FMD", &array); | |
182e56d0 | 172 | array->Clear(); |
75609cab | 173 | |
1a1fdef7 | 174 | AliFMDRawReader rawRead(reader, digitsTree); |
175 | // rawRead.SetSampleRate(fFMD->GetSampleRate()); | |
75609cab | 176 | // rawRead.Exec(); |
177 | rawRead.ReadAdcs(array); | |
178 | ||
179 | Int_t nWrite = digitsTree->Fill(); | |
180 | AliFMDDebug(1, ("Got a grand total of %d digits, wrote %d bytes to tree", | |
181 | array->GetEntriesFast(), nWrite)); | |
182 | ||
183 | ||
5cf05dbb | 184 | AliFMDAltroMapping* map = AliFMDParameters::Instance()->GetAltroMap(); |
185 | for (size_t i = 1; i <= 3; i++) { | |
5dd6072d | 186 | fZS[i-1] = rawRead.IsZeroSuppressed(map->Detector2DDL(i)); |
187 | fZSFactor[i-1] = rawRead.NoiseFactor(map->Detector2DDL(i)); | |
5cf05dbb | 188 | } |
4347b38f | 189 | } |
190 | ||
4347b38f | 191 | //____________________________________________________________________ |
192 | void | |
8983e5ae | 193 | AliFMDReconstructor::GetVertex(AliESDEvent* esd) const |
4347b38f | 194 | { |
97e94238 | 195 | // Return the vertex to use. |
196 | // This is obtained from the ESD object. | |
197 | // If not found, a warning is issued. | |
9684be2f | 198 | fVertexType = kNoVertex; |
199 | fCurrentVertex = 0; | |
8983e5ae | 200 | if (!esd) return; |
201 | ||
202 | const AliESDVertex* vertex = esd->GetPrimaryVertex(); | |
203 | if (!vertex) vertex = esd->GetPrimaryVertexSPD(); | |
204 | if (!vertex) vertex = esd->GetPrimaryVertexTPC(); | |
205 | if (!vertex) vertex = esd->GetVertex(); | |
206 | ||
207 | if (vertex) { | |
208 | AliFMDDebug(2, ("Got %s (%s) from ESD: %f", | |
209 | vertex->GetName(), vertex->GetTitle(), vertex->GetZv())); | |
210 | fCurrentVertex = vertex->GetZv(); | |
211 | fVertexType = kESDVertex; | |
212 | return; | |
213 | } | |
214 | else if (esd->GetESDTZERO()) { | |
215 | AliFMDDebug(2, ("Got primary vertex from T0: %f", esd->GetT0zVertex())); | |
216 | fCurrentVertex = esd->GetT0zVertex(); | |
217 | fVertexType = kESDVertex; | |
218 | return; | |
a3537838 | 219 | } |
9684be2f | 220 | AliWarning("Didn't get any vertex from ESD or generator"); |
221 | } | |
222 | ||
818fff8d | 223 | //____________________________________________________________________ |
224 | Int_t | |
225 | AliFMDReconstructor::GetIdentifier() const | |
226 | { | |
182e56d0 | 227 | // Get the detector identifier. |
228 | // Note the actual value is cached so that we do not | |
229 | // need to do many expensive string comparisons. | |
230 | static Int_t idx = AliReconstruction::GetDetIndex(GetDetectorName()); | |
231 | return idx; | |
818fff8d | 232 | } |
233 | ||
234 | //____________________________________________________________________ | |
235 | const AliFMDRecoParam* | |
236 | AliFMDReconstructor::GetParameters() const | |
237 | { | |
182e56d0 | 238 | // Get the reconstruction parameters. |
239 | // | |
240 | // Return: | |
241 | // Pointer to reconstruction parameters or null if not found or wrong type | |
242 | Int_t iDet = GetIdentifier(); // Was 12 - but changed on Cvetans request | |
818fff8d | 243 | const AliDetectorRecoParam* params = AliReconstructor::GetRecoParam(iDet); |
244 | if (!params || params->IsA() != AliFMDRecoParam::Class()) return 0; | |
245 | return static_cast<const AliFMDRecoParam*>(params); | |
246 | } | |
247 | ||
248 | //____________________________________________________________________ | |
249 | void | |
250 | AliFMDReconstructor::UseRecoParam(Bool_t set) const | |
251 | { | |
09b6c804 | 252 | // |
253 | // Set-up reconstructor to use values from reconstruction | |
254 | // parameters, if present, for this event. If the argument @a set | |
255 | // is @c false, then restore preset values. | |
256 | // | |
257 | // Parameters: | |
258 | // set | |
259 | // | |
818fff8d | 260 | static Float_t savedNoiseFactor = fNoiseFactor; |
261 | static Bool_t savedAngleCorrect = fAngleCorrect; | |
262 | if (set) { | |
263 | const AliFMDRecoParam* params = GetParameters(); | |
264 | if (params) { | |
265 | fNoiseFactor = params->NoiseFactor(); | |
266 | fAngleCorrect = params->AngleCorrect(); | |
267 | } | |
268 | return; | |
269 | } | |
270 | fNoiseFactor = savedNoiseFactor; | |
271 | fAngleCorrect = savedAngleCorrect; | |
272 | } | |
273 | ||
274 | ||
75609cab | 275 | //____________________________________________________________________ |
276 | void | |
277 | AliFMDReconstructor::MarkDeadChannels(AliESDFMD* esd) const | |
278 | { | |
279 | // Loop over all entries of the ESD and mark | |
280 | // those that are dead as such | |
281 | // - otherwise put in the zero signal. | |
282 | AliFMDParameters* param = AliFMDParameters::Instance(); | |
283 | ||
284 | for (UShort_t d = 1; d <= 3; d++) { | |
285 | UShort_t nR = (d == 1 ? 1 : 2); | |
286 | ||
287 | for (UShort_t q = 0; q < nR; q++) { | |
288 | Char_t r = (q == 0 ? 'I' : 'O'); | |
289 | UShort_t nS = (q == 0 ? 20 : 40); | |
290 | UShort_t nT = (q == 0 ? 512 : 256); | |
291 | ||
292 | for (UShort_t s = 0; s < nS; s++) { | |
293 | for (UShort_t t = 0; t < nT; t++) { | |
182e56d0 | 294 | if (param->IsDead(d, r, s, t)) { |
295 | AliDebug(5, Form("Marking FMD%d%c[%2d,%3d] as dead", d, r, s, t)); | |
75609cab | 296 | esd->SetMultiplicity(d, r, s, t, AliESDFMD::kInvalidMult); |
182e56d0 | 297 | esd->SetEta(d, r, s, t, AliESDFMD::kInvalidEta); |
298 | } | |
299 | else if (esd->Multiplicity(d, r, s, t) == AliESDFMD::kInvalidMult) { | |
300 | AliDebug(10, Form("Setting null signal in FMD%d%c[%2d,%3d]", d, r, s, t)); | |
75609cab | 301 | esd->SetMultiplicity(d, r, s, t, 0); |
182e56d0 | 302 | } |
75609cab | 303 | } |
304 | } | |
305 | } | |
306 | } | |
307 | } | |
9684be2f | 308 | |
ddaa8027 | 309 | //____________________________________________________________________ |
310 | void | |
50b9d194 | 311 | AliFMDReconstructor::Reconstruct(AliRawReader* reader, TTree*) const |
ddaa8027 | 312 | { |
313 | // Reconstruct directly from raw data (no intermediate output on | |
314 | // digit tree or rec point tree). | |
50b9d194 | 315 | // |
ddaa8027 | 316 | // Parameters: |
317 | // reader Raw event reader | |
75609cab | 318 | // ctree Not used - 'cluster tree' to store rec-points in. |
3991ca94 | 319 | AliFMDDebug(1, ("Reconstructing from raw reader")); |
50b9d194 | 320 | AliFMDRawReader rawReader(reader, 0); |
321 | ||
322 | UShort_t det, sec, str, fac; | |
323 | Short_t adc, oldDet = -1; | |
324 | Bool_t zs; | |
325 | Char_t rng; | |
818fff8d | 326 | |
327 | UseRecoParam(kTRUE); | |
50b9d194 | 328 | while (rawReader.NextSignal(det, rng, sec, str, adc, zs, fac)) { |
329 | if (det != oldDet) { | |
330 | fZS[det-1] = zs; | |
331 | fZSFactor[det-1] = fac; | |
332 | oldDet = det; | |
333 | } | |
334 | ProcessSignal(det, rng, sec, str, adc); | |
335 | } | |
818fff8d | 336 | UseRecoParam(kFALSE); |
337 | ||
ddaa8027 | 338 | } |
339 | ||
faf80567 | 340 | //____________________________________________________________________ |
341 | void | |
342 | AliFMDReconstructor::Digitize(AliRawReader* reader, TClonesArray* sdigits) const | |
343 | { | |
344 | // Reconstruct directly from raw data (no intermediate output on | |
345 | // digit tree or rec point tree). | |
346 | // | |
347 | // Parameters: | |
348 | // reader Raw event reader | |
349 | // ctree Not used. | |
350 | AliFMDRawReader rawReader(reader, 0); | |
351 | ||
352 | UShort_t det, sec, str, sam, rat, fac; | |
353 | Short_t adc, oldDet = -1; | |
354 | Bool_t zs; | |
355 | Char_t rng; | |
356 | ||
818fff8d | 357 | UseRecoParam(kTRUE); |
faf80567 | 358 | while (rawReader.NextSample(det, rng, sec, str, sam, rat, adc, zs, fac)) { |
359 | if (!rawReader.SelectSample(sam, rat)) continue; | |
360 | if (det != oldDet) { | |
361 | fZS[det-1] = zs; | |
362 | fZSFactor[det-1] = fac; | |
363 | oldDet = det; | |
364 | } | |
365 | DigitizeSignal(sdigits, det, rng, sec, str, sam, adc); | |
366 | } | |
818fff8d | 367 | UseRecoParam(kFALSE); |
faf80567 | 368 | } |
369 | ||
9684be2f | 370 | //____________________________________________________________________ |
371 | void | |
372 | AliFMDReconstructor::Reconstruct(TTree* digitsTree, | |
373 | TTree* clusterTree) const | |
374 | { | |
375 | // Reconstruct event from digits in tree | |
376 | // Get the FMD branch holding the digits. | |
377 | // FIXME: The vertex may not be known yet, so we may have to move | |
378 | // some of this to FillESD. | |
50b9d194 | 379 | // |
380 | // Parameters: | |
381 | // digitsTree Pointer to a tree containing digits | |
382 | // clusterTree Pointer to output tree | |
383 | // | |
75609cab | 384 | if (!fMult) fMult = new TClonesArray("AliFMDRecPoint"); |
385 | ||
3991ca94 | 386 | AliFMDDebug(1, ("Reconstructing from digits in a tree")); |
8983e5ae | 387 | GetVertex(fESD); |
86878381 | 388 | |
75609cab | 389 | |
390 | ||
86878381 | 391 | static TClonesArray* digits = new TClonesArray("AliFMDDigit"); |
75609cab | 392 | TBranch* digitBranch = digitsTree->GetBranch("FMD"); |
4347b38f | 393 | if (!digitBranch) { |
1a1fdef7 | 394 | Error("Exec", "No digit branch for the FMD found"); |
395 | return; | |
4347b38f | 396 | } |
1a1fdef7 | 397 | digitBranch->SetAddress(&digits); |
4347b38f | 398 | |
75609cab | 399 | if (digits) digits->Clear(); |
8f6ee336 | 400 | if (fMult) fMult->Clear(); |
401 | if (fESDObj) fESDObj->Clear(); | |
402 | ||
403 | fNMult = 0; | |
404 | fTreeR = clusterTree; | |
405 | fTreeR->Branch("FMD", &fMult); | |
406 | ||
f95a63c4 | 407 | AliFMDDebug(5, ("Getting entry 0 from digit branch")); |
1a1fdef7 | 408 | digitBranch->GetEntry(0); |
409 | ||
3991ca94 | 410 | AliFMDDebug(5, ("Processing digits")); |
818fff8d | 411 | UseRecoParam(kTRUE); |
e802be3e | 412 | ProcessDigits(digits); |
818fff8d | 413 | UseRecoParam(kFALSE); |
e802be3e | 414 | |
8f6ee336 | 415 | Int_t written = clusterTree->Fill(); |
f95a63c4 | 416 | AliFMDDebug(10, ("Filled %d bytes into cluster tree", written)); |
75609cab | 417 | // digits->Delete(); |
86878381 | 418 | // delete digits; |
4347b38f | 419 | } |
1a1fdef7 | 420 | |
8f6ee336 | 421 | |
4347b38f | 422 | //____________________________________________________________________ |
e802be3e | 423 | void |
424 | AliFMDReconstructor::ProcessDigits(TClonesArray* digits) const | |
4347b38f | 425 | { |
69b696b9 | 426 | // For each digit, find the pseudo rapdity, azimuthal angle, and |
427 | // number of corrected ADC counts, and pass it on to the algorithms | |
428 | // used. | |
50b9d194 | 429 | // |
430 | // Parameters: | |
431 | // digits Array of digits | |
432 | // | |
e802be3e | 433 | Int_t nDigits = digits->GetEntries(); |
3991ca94 | 434 | AliFMDDebug(2, ("Got %d digits", nDigits)); |
a9579262 | 435 | fESDObj->SetNoiseFactor(fNoiseFactor); |
436 | fESDObj->SetAngleCorrected(fAngleCorrect); | |
e802be3e | 437 | for (Int_t i = 0; i < nDigits; i++) { |
438 | AliFMDDigit* digit = static_cast<AliFMDDigit*>(digits->At(i)); | |
50b9d194 | 439 | if (!digit) continue; |
440 | ProcessDigit(digit); | |
441 | } | |
442 | } | |
8f6ee336 | 443 | |
50b9d194 | 444 | //____________________________________________________________________ |
445 | void | |
446 | AliFMDReconstructor::ProcessDigit(AliFMDDigit* digit) const | |
447 | { | |
09b6c804 | 448 | // |
449 | // Process a single digit | |
450 | // | |
451 | // Parameters: | |
452 | // digit Digiti to process | |
453 | // | |
50b9d194 | 454 | UShort_t det = digit->Detector(); |
455 | Char_t rng = digit->Ring(); | |
456 | UShort_t sec = digit->Sector(); | |
457 | UShort_t str = digit->Strip(); | |
458 | Short_t adc = digit->Counts(); | |
a0354a2a | 459 | |
50b9d194 | 460 | ProcessSignal(det, rng, sec, str, adc); |
461 | } | |
462 | ||
463 | //____________________________________________________________________ | |
464 | void | |
465 | AliFMDReconstructor::ProcessSignal(UShort_t det, | |
466 | Char_t rng, | |
467 | UShort_t sec, | |
468 | UShort_t str, | |
469 | Short_t adc) const | |
470 | { | |
471 | // Process the signal from a single strip | |
472 | // | |
473 | // Parameters: | |
474 | // det Detector ID | |
475 | // rng Ring ID | |
476 | // sec Sector ID | |
477 | // rng Strip ID | |
478 | // adc ADC counts | |
479 | // | |
480 | AliFMDParameters* param = AliFMDParameters::Instance(); | |
481 | // Check that the strip is not marked as dead | |
482 | if (param->IsDead(det, rng, sec, str)) { | |
86878381 | 483 | AliFMDDebug(1, ("FMD%d%c[%2d,%3d] is dead", det, rng, sec, str)); |
50b9d194 | 484 | return; |
485 | } | |
486 | ||
487 | // digit->Print(); | |
488 | // Get eta and phi | |
489 | Float_t eta, phi; | |
490 | PhysicalCoordinates(det, rng, sec, str, eta, phi); | |
4347b38f | 491 | |
50b9d194 | 492 | // Substract pedestal. |
493 | UShort_t counts = SubtractPedestal(det, rng, sec, str, adc); | |
494 | if(counts == USHRT_MAX) return; | |
495 | ||
8f6ee336 | 496 | // Gain match digits. |
50b9d194 | 497 | Double_t edep = Adc2Energy(det, rng, sec, str, eta, counts); |
498 | // Get rid of nonsense energy | |
499 | if(edep < 0) return; | |
500 | ||
501 | // Make rough multiplicity | |
502 | Double_t mult = Energy2Multiplicity(det, rng, sec, str, edep); | |
503 | // Get rid of nonsense mult | |
6eb2922a | 504 | //if (mult > 20) { |
505 | // AliWarning(Form("The mutliplicity in FMD%d%c[%2d,%3d]=%f > 20 " | |
506 | // "(ADC: %d, Energy: %f)", det, rng, sec, str, mult, | |
507 | // counts, edep)); | |
508 | // } | |
50b9d194 | 509 | if (mult < 0) return; |
3991ca94 | 510 | AliFMDDebug(10, ("FMD%d%c[%2d,%3d]: " |
50b9d194 | 511 | "ADC: %d, Counts: %d, Energy: %f, Mult: %f", |
512 | det, rng, sec, str, adc, counts, edep, mult)); | |
513 | ||
514 | // Create a `RecPoint' on the output branch. | |
515 | if (fMult) { | |
516 | AliFMDRecPoint* m = | |
517 | new ((*fMult)[fNMult]) AliFMDRecPoint(det, rng, sec, str, | |
518 | eta, phi, edep, mult); | |
519 | (void)m; // Suppress warnings about unused variables. | |
520 | fNMult++; | |
4347b38f | 521 | } |
50b9d194 | 522 | |
523 | fESDObj->SetMultiplicity(det, rng, sec, str, mult); | |
524 | fESDObj->SetEta(det, rng, sec, str, eta); | |
525 | ||
526 | if (fDiagAll) fDiagAll->Fill(adc, mult); | |
527 | ||
4347b38f | 528 | } |
8f6ee336 | 529 | |
faf80567 | 530 | //____________________________________________________________________ |
531 | void | |
532 | AliFMDReconstructor::DigitizeSignal(TClonesArray* sdigits, | |
533 | UShort_t det, | |
534 | Char_t rng, | |
535 | UShort_t sec, | |
536 | UShort_t str, | |
537 | UShort_t /* sam */, | |
538 | Short_t adc) const | |
539 | { | |
540 | // Process the signal from a single strip | |
541 | // | |
542 | // Parameters: | |
543 | // det Detector ID | |
544 | // rng Ring ID | |
545 | // sec Sector ID | |
546 | // rng Strip ID | |
547 | // adc ADC counts | |
548 | // | |
549 | AliFMDParameters* param = AliFMDParameters::Instance(); | |
550 | // Check that the strip is not marked as dead | |
551 | if (param->IsDead(det, rng, sec, str)) { | |
552 | AliFMDDebug(10, ("FMD%d%c[%2d,%3d] is dead", det, rng, sec, str)); | |
553 | return; | |
554 | } | |
555 | ||
556 | // Substract pedestal. | |
557 | UShort_t counts = SubtractPedestal(det, rng, sec, str, adc); | |
558 | if(counts == USHRT_MAX || counts == 0) return; | |
559 | ||
560 | // Gain match digits. | |
561 | Double_t edep = Adc2Energy(det, rng, sec, str, counts); | |
562 | // Get rid of nonsense energy | |
563 | if(edep < 0) return; | |
564 | ||
565 | Int_t n = sdigits->GetEntriesFast(); | |
566 | // AliFMDSDigit* sdigit = | |
567 | new ((*sdigits)[n]) | |
568 | AliFMDSDigit(det, rng, sec, str, edep, counts, counts, counts, counts); | |
569 | // sdigit->SetCount(sam, counts); | |
570 | } | |
571 | ||
572 | //____________________________________________________________________ | |
573 | UShort_t | |
574 | AliFMDReconstructor::SubtractPedestal(UShort_t det, | |
575 | Char_t rng, | |
576 | UShort_t sec, | |
577 | UShort_t str, | |
578 | UShort_t adc, | |
579 | Float_t noiseFactor, | |
580 | Bool_t zsEnabled, | |
581 | UShort_t zsNoiseFactor) const | |
582 | { | |
09b6c804 | 583 | // |
584 | // Subtract the pedestal off the ADC counts. | |
585 | // | |
586 | // Parameters: | |
587 | // det Detector number | |
588 | // rng Ring identifier | |
589 | // sec Sector number | |
590 | // str Strip number | |
591 | // adc ADC counts | |
592 | // noiseFactor If pedestal substracted pedestal is less then | |
593 | // this times the noise, then consider this to be 0. | |
594 | // zsEnabled Whether zero-suppression is on. | |
595 | // zsNoiseFactor Noise factor used in on-line pedestal | |
596 | // subtraction. | |
597 | // | |
598 | // Return: | |
599 | // The pedestal subtracted ADC counts (possibly 0), or @c | |
600 | // USHRT_MAX in case of problems. | |
601 | // | |
faf80567 | 602 | AliFMDParameters* param = AliFMDParameters::Instance(); |
603 | Float_t ped = (zsEnabled ? 0 : | |
604 | param->GetPedestal(det, rng, sec, str)); | |
605 | Float_t noise = param->GetPedestalWidth(det, rng, sec, str); | |
606 | if(ped < 0 || noise < 0) { | |
607 | AliWarningClass(Form("Invalid pedestal (%f) or noise (%f) " | |
608 | "for FMD%d%c[%02d,%03d]", | |
609 | ped, noise, det, rng, sec, str)); | |
610 | return USHRT_MAX; | |
611 | } | |
612 | AliDebugClass(15, Form("Subtracting pedestal for FMD%d%c[%2d,%3d]=%4d " | |
613 | "(%s w/factor %d, noise factor %f, " | |
614 | "pedestal %8.2f+/-%8.2f)", | |
615 | det, rng, sec, str, adc, | |
616 | (zsEnabled ? "zs'ed" : "straight"), | |
617 | zsNoiseFactor, noiseFactor, ped, noise)); | |
618 | ||
619 | Int_t counts = adc + Int_t(zsEnabled ? zsNoiseFactor * noise : - ped); | |
620 | counts = TMath::Max(Int_t(counts), 0); | |
621 | // Calculate the noise factor for suppressing remenants of the noise | |
622 | // peak. If we have done on-line zero suppression, we only check | |
623 | // for noise signals that are larger than the suppressed noise. If | |
624 | // the noise factor used on line is larger than the factor used | |
625 | // here, we do not do this check at all. | |
626 | // | |
627 | // For example: | |
628 | // Online factor | Read factor | Result | |
629 | // ---------------+--------------+------------------------------- | |
630 | // 2 | 3 | Check if signal > 1 * noise | |
631 | // 3 | 3 | Check if signal > 0 | |
632 | // 3 | 2 | Check if signal > 0 | |
633 | // | |
634 | // In this way, we make sure that we do not suppress away too much | |
635 | // data, and that the read-factor is the most stringent cut. | |
636 | Float_t nf = TMath::Max(0.F, noiseFactor - (zsEnabled ? zsNoiseFactor : 0)); | |
637 | if (counts < noise * nf) counts = 0; | |
638 | if (counts > 0) AliDebugClass(15, "Got a hit strip"); | |
639 | ||
86878381 | 640 | UShort_t ret = counts < 0 ? 0 : counts; |
641 | return ret; | |
faf80567 | 642 | } |
50b9d194 | 643 | |
644 | ||
1a1fdef7 | 645 | //____________________________________________________________________ |
646 | UShort_t | |
50b9d194 | 647 | AliFMDReconstructor::SubtractPedestal(UShort_t det, |
648 | Char_t rng, | |
649 | UShort_t sec, | |
650 | UShort_t str, | |
651 | Short_t adc) const | |
1a1fdef7 | 652 | { |
653 | // Member function to subtract the pedestal from a digit | |
50b9d194 | 654 | // |
655 | // Parameters: | |
656 | // det Detector ID | |
657 | // rng Ring ID | |
658 | // sec Sector ID | |
659 | // rng Strip ID | |
660 | // adc # of ADC counts | |
661 | // Return: | |
662 | // Pedestal subtracted signal or USHRT_MAX in case of problems | |
663 | // | |
faf80567 | 664 | UShort_t counts = SubtractPedestal(det, rng, sec, str, adc, |
665 | fNoiseFactor, fZS[det-1], | |
666 | fZSFactor[det-1]); | |
9684be2f | 667 | if (fDiagStep1) fDiagStep1->Fill(adc, counts); |
8f6ee336 | 668 | |
faf80567 | 669 | return counts; |
1a1fdef7 | 670 | } |
671 | ||
8f6ee336 | 672 | //____________________________________________________________________ |
673 | Float_t | |
50b9d194 | 674 | AliFMDReconstructor::Adc2Energy(UShort_t det, |
675 | Char_t rng, | |
676 | UShort_t sec, | |
677 | UShort_t str, | |
50b9d194 | 678 | UShort_t count) const |
8f6ee336 | 679 | { |
680 | // Converts number of ADC counts to energy deposited. | |
681 | // Note, that this member function can be overloaded by derived | |
682 | // classes to do strip-specific look-ups in databases or the like, | |
683 | // to find the proper gain for a strip. | |
684 | // | |
68aba90a | 685 | // In the first simple version, we calculate the energy deposited as |
8f6ee336 | 686 | // |
687 | // EnergyDeposited = cos(theta) * gain * count | |
688 | // | |
689 | // where | |
690 | // | |
691 | // Pre_amp_MIP_Range | |
692 | // gain = ----------------- * Energy_deposited_per_MIP | |
693 | // ADC_channel_size | |
694 | // | |
695 | // is constant and the same for all strips. | |
68aba90a | 696 | // |
697 | // For the production we use the conversion measured in the NBI lab. | |
698 | // The total conversion is then: | |
50b9d194 | 699 | // |
700 | // gain = ADC / DAC | |
701 | // | |
702 | // EdepMip * count | |
703 | // => energy = ---------------- | |
704 | // gain * DACPerADC | |
705 | // | |
706 | // Parameters: | |
707 | // det Detector ID | |
708 | // rng Ring ID | |
709 | // sec Sector ID | |
710 | // rng Strip ID | |
50b9d194 | 711 | // counts Number of ADC counts over pedestal |
712 | // Return | |
713 | // The energy deposited in a single strip, or -1 in case of problems | |
68aba90a | 714 | // |
a9579262 | 715 | if (count <= 0) return 0; |
8f6ee336 | 716 | AliFMDParameters* param = AliFMDParameters::Instance(); |
50b9d194 | 717 | Float_t gain = param->GetPulseGain(det, rng, sec, str); |
68aba90a | 718 | // 'Tagging' bad gains as bad energy |
719 | if (gain < 0) { | |
50b9d194 | 720 | AliWarning(Form("Invalid gain (%f) for FMD%d%c[%02d,%03d]", |
721 | gain, det, rng, sec, str)); | |
68aba90a | 722 | return -1; |
723 | } | |
50b9d194 | 724 | AliFMDDebug(5, ("Converting counts %d to energy (factor=%f, DAC2MIP=%f)", |
68aba90a | 725 | count, gain,param->GetDACPerMIP())); |
a9579262 | 726 | |
50b9d194 | 727 | Double_t edep = ((count * param->GetEdepMip()) |
728 | / (gain * param->GetDACPerMIP())); | |
faf80567 | 729 | return edep; |
730 | } | |
731 | ||
732 | //____________________________________________________________________ | |
733 | Float_t | |
734 | AliFMDReconstructor::Adc2Energy(UShort_t det, | |
735 | Char_t rng, | |
736 | UShort_t sec, | |
737 | UShort_t str, | |
738 | Float_t eta, | |
739 | UShort_t count) const | |
740 | { | |
741 | // Converts number of ADC counts to energy deposited. | |
742 | // Note, that this member function can be overloaded by derived | |
743 | // classes to do strip-specific look-ups in databases or the like, | |
744 | // to find the proper gain for a strip. | |
745 | // | |
746 | // In the first simple version, we calculate the energy deposited as | |
747 | // | |
748 | // EnergyDeposited = cos(theta) * gain * count | |
749 | // | |
750 | // where | |
751 | // | |
752 | // Pre_amp_MIP_Range | |
753 | // gain = ----------------- * Energy_deposited_per_MIP | |
754 | // ADC_channel_size | |
755 | // | |
756 | // is constant and the same for all strips. | |
757 | // | |
758 | // For the production we use the conversion measured in the NBI lab. | |
759 | // The total conversion is then: | |
760 | // | |
761 | // gain = ADC / DAC | |
762 | // | |
763 | // EdepMip * count | |
764 | // => energy = ---------------- | |
765 | // gain * DACPerADC | |
766 | // | |
767 | // Parameters: | |
768 | // det Detector ID | |
769 | // rng Ring ID | |
770 | // sec Sector ID | |
771 | // rng Strip ID | |
772 | // eta Psuedo-rapidity | |
773 | // counts Number of ADC counts over pedestal | |
774 | // Return | |
775 | // The energy deposited in a single strip, or -1 in case of problems | |
776 | // | |
777 | Double_t edep = Adc2Energy(det, rng, sec, str, count); | |
778 | ||
9684be2f | 779 | if (fDiagStep2) fDiagStep2->Fill(count, edep); |
a9579262 | 780 | if (fAngleCorrect) { |
9684be2f | 781 | Double_t theta = 2 * TMath::ATan(TMath::Exp(-eta)); |
782 | Double_t corr = TMath::Abs(TMath::Cos(theta)); | |
783 | Double_t cedep = corr * edep; | |
f95a63c4 | 784 | AliFMDDebug(10, ("correcting for path %f * %f = %f (eta=%f, theta=%f)", |
9684be2f | 785 | edep, corr, cedep, eta, theta)); |
786 | if (fDiagStep3) fDiagStep3->Fill(edep, cedep); | |
787 | edep = cedep; | |
a9579262 | 788 | } |
8f6ee336 | 789 | return edep; |
790 | } | |
791 | ||
792 | //____________________________________________________________________ | |
793 | Float_t | |
50b9d194 | 794 | AliFMDReconstructor::Energy2Multiplicity(UShort_t /*det*/, |
795 | Char_t /*rng*/, | |
796 | UShort_t /*sec*/, | |
797 | UShort_t /*str*/, | |
798 | Float_t edep) const | |
8f6ee336 | 799 | { |
800 | // Converts an energy signal to number of particles. | |
801 | // Note, that this member function can be overloaded by derived | |
802 | // classes to do strip-specific look-ups in databases or the like, | |
803 | // to find the proper gain for a strip. | |
804 | // | |
805 | // In this simple version, we calculate the multiplicity as | |
806 | // | |
807 | // multiplicity = Energy_deposited / Energy_deposited_per_MIP | |
808 | // | |
809 | // where | |
810 | // | |
811 | // Energy_deposited_per_MIP = 1.664 * SI_density * SI_thickness | |
812 | // | |
813 | // is constant and the same for all strips | |
50b9d194 | 814 | // |
815 | // Parameters: | |
816 | // det Detector ID | |
817 | // rng Ring ID | |
818 | // sec Sector ID | |
819 | // rng Strip ID | |
820 | // edep Energy deposited in a single strip | |
821 | // Return | |
822 | // The "bare" multiplicity corresponding to the energy deposited | |
8f6ee336 | 823 | AliFMDParameters* param = AliFMDParameters::Instance(); |
824 | Double_t edepMIP = param->GetEdepMip(); | |
825 | Float_t mult = edep / edepMIP; | |
68aba90a | 826 | #if 0 |
8f6ee336 | 827 | if (edep > 0) |
f95a63c4 | 828 | AliFMDDebug(15, ("Translating energy %f to multiplicity via " |
8f6ee336 | 829 | "divider %f->%f", edep, edepMIP, mult)); |
68aba90a | 830 | #endif |
9684be2f | 831 | if (fDiagStep4) fDiagStep4->Fill(edep, mult); |
8f6ee336 | 832 | return mult; |
833 | } | |
834 | ||
835 | //____________________________________________________________________ | |
836 | void | |
50b9d194 | 837 | AliFMDReconstructor::PhysicalCoordinates(UShort_t det, |
838 | Char_t rng, | |
839 | UShort_t sec, | |
840 | UShort_t str, | |
8f6ee336 | 841 | Float_t& eta, |
842 | Float_t& phi) const | |
843 | { | |
844 | // Get the eta and phi of a digit | |
845 | // | |
50b9d194 | 846 | // Parameters: |
847 | // det Detector ID | |
848 | // rng Ring ID | |
849 | // sec Sector ID | |
850 | // rng Strip ID | |
851 | // eta On return, contains the psuedo-rapidity of the strip | |
852 | // phi On return, contains the azimuthal angle of the strip | |
853 | // | |
9b48326f | 854 | AliFMDGeometry* geom = AliFMDGeometry::Instance(); |
75609cab | 855 | Double_t x, y, z, r, theta, deta, dphi; |
50b9d194 | 856 | geom->Detector2XYZ(det, rng, sec, str, x, y, z); |
75609cab | 857 | |
bf000c32 | 858 | // Correct for vertex offset. |
8161c5f7 | 859 | z -= fCurrentVertex; |
75609cab | 860 | AliFMDGeometry::XYZ2REtaPhiTheta(x, y, z, r, deta, dphi, theta); |
861 | eta = deta; | |
862 | phi = dphi; | |
8f6ee336 | 863 | } |
864 | ||
182e56d0 | 865 | namespace { |
866 | class ESDPrinter : public AliESDFMD::ForOne | |
867 | { | |
868 | public: | |
869 | ESDPrinter() {} | |
870 | Bool_t operator()(UShort_t d, Char_t r, UShort_t s, UShort_t t, | |
871 | Float_t m, Float_t e) | |
872 | { | |
873 | if (m > 0 && m != AliESDFMD::kInvalidMult) | |
874 | printf(" FMD%d%c[%2d,%3d] = %6.3f / %6.3f\n", d, r, s, t, m, e); | |
875 | return kTRUE; | |
876 | } | |
877 | }; | |
878 | } | |
879 | ||
8f6ee336 | 880 | |
4347b38f | 881 | //____________________________________________________________________ |
882 | void | |
1a1fdef7 | 883 | AliFMDReconstructor::FillESD(TTree* /* digitsTree */, |
884 | TTree* /* clusterTree */, | |
af885e0f | 885 | AliESDEvent* esd) const |
121a60bd | 886 | { |
42403906 | 887 | // nothing to be done |
69b696b9 | 888 | // FIXME: The vertex may not be known when Reconstruct is executed, |
889 | // so we may have to move some of that member function here. | |
f95a63c4 | 890 | AliFMDDebug(2, ("Calling FillESD with two trees and one ESD")); |
8f6ee336 | 891 | // fESDObj->Print(); |
892 | ||
75609cab | 893 | // Fix up ESD so that only truely dead channels get the kInvalidMult flag. |
894 | MarkDeadChannels(fESDObj); | |
895 | ||
50b9d194 | 896 | Double_t oldVz = fCurrentVertex; |
8983e5ae | 897 | GetVertex(esd); |
50b9d194 | 898 | if (fVertexType != kNoVertex) { |
899 | AliFMDDebug(2, ("Revertexing the ESD data to vz=%f (was %f)", | |
900 | fCurrentVertex, oldVz)); | |
901 | AliFMDESDRevertexer revertexer; | |
902 | revertexer.Revertex(fESDObj, fCurrentVertex); | |
903 | } | |
182e56d0 | 904 | |
905 | if (AliDebugLevel() > 10) { | |
906 | ESDPrinter p; | |
907 | fESDObj->ForEach(p); | |
908 | } | |
50b9d194 | 909 | |
8f6ee336 | 910 | if (esd) { |
f95a63c4 | 911 | AliFMDDebug(2, ("Writing FMD data to ESD tree")); |
8f6ee336 | 912 | esd->SetFMDData(fESDObj); |
a3537838 | 913 | } |
9684be2f | 914 | |
915 | if (!fDiagnostics || !esd) return; | |
916 | static bool first = true; | |
69893a66 | 917 | // This is most likely NOT the event number you'd like to use. It |
918 | // has nothing to do with the 'real' event number. | |
919 | // - That's OK. We just use it for the name of the directory - | |
920 | // nothing else. Christian | |
921 | Int_t evno = esd->GetEventNumberInFile(); | |
3991ca94 | 922 | AliFMDDebug(3, ("Writing diagnostics histograms to FMD.Diag.root/%03d",evno)); |
9684be2f | 923 | TFile f("FMD.Diag.root", (first ? "RECREATE" : "UPDATE")); |
924 | first = false; | |
925 | f.cd(); | |
926 | TDirectory* d = f.mkdir(Form("%03d", evno), | |
927 | Form("Diagnostics histograms for event # %d", evno)); | |
928 | d->cd(); | |
929 | if (fDiagStep1) fDiagStep1->Write(); | |
930 | if (fDiagStep2) fDiagStep2->Write(); | |
931 | if (fDiagStep3) fDiagStep3->Write(); | |
932 | if (fDiagStep4) fDiagStep4->Write(); | |
933 | if (fDiagAll) fDiagAll->Write(); | |
934 | d->Write(); | |
935 | f.Write(); | |
936 | f.Close(); | |
937 | ||
938 | if (fDiagStep1) fDiagStep1->Reset(); | |
939 | if (fDiagStep2) fDiagStep2->Reset(); | |
940 | if (fDiagStep3) fDiagStep3->Reset(); | |
941 | if (fDiagStep4) fDiagStep4->Reset(); | |
942 | if (fDiagAll) fDiagAll->Reset(); | |
121a60bd | 943 | } |
944 | ||
ddaa8027 | 945 | //____________________________________________________________________ |
946 | void | |
947 | AliFMDReconstructor::FillESD(AliRawReader*, TTree* clusterTree, | |
948 | AliESDEvent* esd) const | |
949 | { | |
09b6c804 | 950 | // |
951 | // Forwards to above member function | |
952 | // | |
ddaa8027 | 953 | TTree* dummy = 0; |
954 | FillESD(dummy, clusterTree, esd); | |
955 | } | |
42403906 | 956 | //____________________________________________________________________ |
957 | // | |
958 | // EOF | |
959 | // |