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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), | |
57f94f8f | 85 | fDiagAll(0), |
86 | fBad(0) | |
4347b38f | 87 | { |
8f6ee336 | 88 | // Make a new FMD reconstructor object - default CTOR. |
a9579262 | 89 | SetNoiseFactor(); |
90 | SetAngleCorrect(); | |
9b98d361 | 91 | if (AliDebugLevel() > 0) fDiagnostics = kTRUE; |
030d93c1 | 92 | for(Int_t det = 1; det<=3; det++) { |
93 | fZS[det-1] = kFALSE; | |
94 | fZSFactor[det-1] = 0; | |
95 | } | |
4347b38f | 96 | } |
56b1929b | 97 | |
98 | //____________________________________________________________________ | |
99 | AliFMDReconstructor::~AliFMDReconstructor() | |
100 | { | |
101 | // Destructor | |
8f6ee336 | 102 | if (fMult) fMult->Delete(); |
103 | if (fMult) delete fMult; | |
104 | if (fESDObj) delete fESDObj; | |
56b1929b | 105 | } |
4347b38f | 106 | |
107 | //____________________________________________________________________ | |
108 | void | |
d76c31f4 | 109 | AliFMDReconstructor::Init() |
1a1fdef7 | 110 | { |
111 | // Initialize the reconstructor | |
f011bd38 | 112 | |
bf000c32 | 113 | // Initialize the geometry |
9b48326f | 114 | AliFMDGeometry* geom = AliFMDGeometry::Instance(); |
115 | geom->Init(); | |
116 | geom->InitTransformations(); | |
117 | ||
118 | // Initialize the parameters | |
119 | AliFMDParameters* param = AliFMDParameters::Instance(); | |
120 | param->Init(); | |
bf000c32 | 121 | |
8f6ee336 | 122 | // Current vertex position |
1a1fdef7 | 123 | fCurrentVertex = 0; |
8f6ee336 | 124 | // Create array of reconstructed strip multiplicities |
75609cab | 125 | // fMult = new TClonesArray("AliFMDRecPoint", 51200); |
8f6ee336 | 126 | // Create ESD output object |
127 | fESDObj = new AliESDFMD; | |
128 | ||
9684be2f | 129 | // Check if we need diagnostics histograms |
130 | if (!fDiagnostics) return; | |
9b98d361 | 131 | AliInfo("Making diagnostics histograms"); |
9684be2f | 132 | fDiagStep1 = new TH2I("diagStep1", "Read ADC vs. Noise surpressed ADC", |
133 | 1024, -.5, 1023.5, 1024, -.5, 1023.5); | |
134 | fDiagStep1->SetDirectory(0); | |
135 | fDiagStep1->GetXaxis()->SetTitle("ADC (read)"); | |
136 | fDiagStep1->GetYaxis()->SetTitle(Form("ADC (noise surpressed %4.f)", | |
137 | fNoiseFactor)); | |
138 | fDiagStep2 = new TH2F("diagStep2", "ADC vs Edep deduced", | |
139 | 1024, -.5, 1023.5, 100, 0, 2); | |
140 | fDiagStep2->SetDirectory(0); | |
141 | fDiagStep2->GetXaxis()->SetTitle("ADC (noise surpressed)"); | |
142 | fDiagStep2->GetYaxis()->SetTitle("#Delta E [GeV]"); | |
143 | fDiagStep3 = new TH2F("diagStep3", "Edep vs Edep path corrected", | |
144 | 100, 0., 2., 100, 0., 2.); | |
145 | fDiagStep3->SetDirectory(0); | |
146 | fDiagStep3->GetXaxis()->SetTitle("#Delta E [GeV]"); | |
147 | fDiagStep3->GetYaxis()->SetTitle("#Delta E/#Delta x #times #delta x [GeV]"); | |
148 | fDiagStep4 = new TH2F("diagStep4", "Edep vs Multiplicity deduced", | |
149 | 100, 0., 2., 100, -.1, 19.9); | |
150 | fDiagStep4->SetDirectory(0); | |
151 | fDiagStep4->GetXaxis()->SetTitle("#Delta E/#Delta x #times #delta x [GeV]"); | |
152 | fDiagStep4->GetYaxis()->SetTitle("Multiplicity"); | |
153 | fDiagAll = new TH2F("diagAll", "Read ADC vs Multiplicity deduced", | |
154 | 1024, -.5, 1023.5, 100, -.1, 19.9); | |
155 | fDiagAll->SetDirectory(0); | |
156 | fDiagAll->GetXaxis()->SetTitle("ADC (read)"); | |
157 | fDiagAll->GetYaxis()->SetTitle("Multiplicity"); | |
4347b38f | 158 | } |
dc8af42e | 159 | |
4347b38f | 160 | //____________________________________________________________________ |
161 | void | |
1a1fdef7 | 162 | AliFMDReconstructor::ConvertDigits(AliRawReader* reader, |
163 | TTree* digitsTree) const | |
164 | { | |
165 | // Convert Raw digits to AliFMDDigit's in a tree | |
faf80567 | 166 | AliFMDDebug(1, ("Reading raw data into digits tree")); |
75609cab | 167 | if (!digitsTree) { |
168 | AliError("No digits tree passed"); | |
169 | return; | |
170 | } | |
171 | static TClonesArray* array = new TClonesArray("AliFMDDigit"); | |
172 | digitsTree->Branch("FMD", &array); | |
182e56d0 | 173 | array->Clear(); |
75609cab | 174 | |
1a1fdef7 | 175 | AliFMDRawReader rawRead(reader, digitsTree); |
176 | // rawRead.SetSampleRate(fFMD->GetSampleRate()); | |
75609cab | 177 | // rawRead.Exec(); |
178 | rawRead.ReadAdcs(array); | |
179 | ||
180 | Int_t nWrite = digitsTree->Fill(); | |
181 | AliFMDDebug(1, ("Got a grand total of %d digits, wrote %d bytes to tree", | |
182 | array->GetEntriesFast(), nWrite)); | |
183 | ||
184 | ||
5cf05dbb | 185 | AliFMDAltroMapping* map = AliFMDParameters::Instance()->GetAltroMap(); |
186 | for (size_t i = 1; i <= 3; i++) { | |
5dd6072d | 187 | fZS[i-1] = rawRead.IsZeroSuppressed(map->Detector2DDL(i)); |
188 | fZSFactor[i-1] = rawRead.NoiseFactor(map->Detector2DDL(i)); | |
5cf05dbb | 189 | } |
4347b38f | 190 | } |
191 | ||
4347b38f | 192 | //____________________________________________________________________ |
193 | void | |
8983e5ae | 194 | AliFMDReconstructor::GetVertex(AliESDEvent* esd) const |
4347b38f | 195 | { |
97e94238 | 196 | // Return the vertex to use. |
197 | // This is obtained from the ESD object. | |
198 | // If not found, a warning is issued. | |
9684be2f | 199 | fVertexType = kNoVertex; |
200 | fCurrentVertex = 0; | |
8983e5ae | 201 | if (!esd) return; |
202 | ||
203 | const AliESDVertex* vertex = esd->GetPrimaryVertex(); | |
204 | if (!vertex) vertex = esd->GetPrimaryVertexSPD(); | |
205 | if (!vertex) vertex = esd->GetPrimaryVertexTPC(); | |
206 | if (!vertex) vertex = esd->GetVertex(); | |
207 | ||
208 | if (vertex) { | |
209 | AliFMDDebug(2, ("Got %s (%s) from ESD: %f", | |
210 | vertex->GetName(), vertex->GetTitle(), vertex->GetZv())); | |
211 | fCurrentVertex = vertex->GetZv(); | |
212 | fVertexType = kESDVertex; | |
213 | return; | |
214 | } | |
215 | else if (esd->GetESDTZERO()) { | |
216 | AliFMDDebug(2, ("Got primary vertex from T0: %f", esd->GetT0zVertex())); | |
217 | fCurrentVertex = esd->GetT0zVertex(); | |
218 | fVertexType = kESDVertex; | |
219 | return; | |
a3537838 | 220 | } |
9684be2f | 221 | AliWarning("Didn't get any vertex from ESD or generator"); |
222 | } | |
223 | ||
818fff8d | 224 | //____________________________________________________________________ |
225 | Int_t | |
226 | AliFMDReconstructor::GetIdentifier() const | |
227 | { | |
182e56d0 | 228 | // Get the detector identifier. |
229 | // Note the actual value is cached so that we do not | |
230 | // need to do many expensive string comparisons. | |
231 | static Int_t idx = AliReconstruction::GetDetIndex(GetDetectorName()); | |
232 | return idx; | |
818fff8d | 233 | } |
234 | ||
235 | //____________________________________________________________________ | |
236 | const AliFMDRecoParam* | |
237 | AliFMDReconstructor::GetParameters() const | |
238 | { | |
182e56d0 | 239 | // Get the reconstruction parameters. |
240 | // | |
241 | // Return: | |
242 | // Pointer to reconstruction parameters or null if not found or wrong type | |
243 | Int_t iDet = GetIdentifier(); // Was 12 - but changed on Cvetans request | |
818fff8d | 244 | const AliDetectorRecoParam* params = AliReconstructor::GetRecoParam(iDet); |
245 | if (!params || params->IsA() != AliFMDRecoParam::Class()) return 0; | |
246 | return static_cast<const AliFMDRecoParam*>(params); | |
247 | } | |
248 | ||
249 | //____________________________________________________________________ | |
250 | void | |
251 | AliFMDReconstructor::UseRecoParam(Bool_t set) const | |
252 | { | |
09b6c804 | 253 | // |
254 | // Set-up reconstructor to use values from reconstruction | |
255 | // parameters, if present, for this event. If the argument @a set | |
256 | // is @c false, then restore preset values. | |
257 | // | |
258 | // Parameters: | |
259 | // set | |
260 | // | |
818fff8d | 261 | static Float_t savedNoiseFactor = fNoiseFactor; |
262 | static Bool_t savedAngleCorrect = fAngleCorrect; | |
263 | if (set) { | |
264 | const AliFMDRecoParam* params = GetParameters(); | |
265 | if (params) { | |
266 | fNoiseFactor = params->NoiseFactor(); | |
267 | fAngleCorrect = params->AngleCorrect(); | |
268 | } | |
269 | return; | |
270 | } | |
271 | fNoiseFactor = savedNoiseFactor; | |
272 | fAngleCorrect = savedAngleCorrect; | |
273 | } | |
274 | ||
275 | ||
75609cab | 276 | //____________________________________________________________________ |
277 | void | |
278 | AliFMDReconstructor::MarkDeadChannels(AliESDFMD* esd) const | |
279 | { | |
280 | // Loop over all entries of the ESD and mark | |
281 | // those that are dead as such | |
282 | // - otherwise put in the zero signal. | |
283 | AliFMDParameters* param = AliFMDParameters::Instance(); | |
284 | ||
285 | for (UShort_t d = 1; d <= 3; d++) { | |
286 | UShort_t nR = (d == 1 ? 1 : 2); | |
287 | ||
288 | for (UShort_t q = 0; q < nR; q++) { | |
289 | Char_t r = (q == 0 ? 'I' : 'O'); | |
290 | UShort_t nS = (q == 0 ? 20 : 40); | |
291 | UShort_t nT = (q == 0 ? 512 : 256); | |
292 | ||
293 | for (UShort_t s = 0; s < nS; s++) { | |
294 | for (UShort_t t = 0; t < nT; t++) { | |
f9ae77c6 | 295 | if (fBad(d, r, s, t)) { |
296 | AliDebug(5, Form("Marking FMD%d%c[%2d,%3d] as bad", d, r, s, t)); | |
297 | esd->SetMultiplicity(d, r, s, t, AliESDFMD::kInvalidMult); | |
298 | } | |
182e56d0 | 299 | if (param->IsDead(d, r, s, t)) { |
300 | AliDebug(5, Form("Marking FMD%d%c[%2d,%3d] as dead", d, r, s, t)); | |
75609cab | 301 | esd->SetMultiplicity(d, r, s, t, AliESDFMD::kInvalidMult); |
f9ae77c6 | 302 | // esd->SetEta(d, r, s, t, AliESDFMD::kInvalidEta); |
182e56d0 | 303 | } |
304 | else if (esd->Multiplicity(d, r, s, t) == AliESDFMD::kInvalidMult) { | |
f9ae77c6 | 305 | AliDebug(10, Form("Setting null signal in FMD%d%c[%2d,%3d]", |
306 | d, r, s, t)); | |
75609cab | 307 | esd->SetMultiplicity(d, r, s, t, 0); |
182e56d0 | 308 | } |
75609cab | 309 | } |
310 | } | |
311 | } | |
312 | } | |
313 | } | |
9684be2f | 314 | |
ddaa8027 | 315 | //____________________________________________________________________ |
316 | void | |
50b9d194 | 317 | AliFMDReconstructor::Reconstruct(AliRawReader* reader, TTree*) const |
ddaa8027 | 318 | { |
319 | // Reconstruct directly from raw data (no intermediate output on | |
320 | // digit tree or rec point tree). | |
50b9d194 | 321 | // |
ddaa8027 | 322 | // Parameters: |
323 | // reader Raw event reader | |
75609cab | 324 | // ctree Not used - 'cluster tree' to store rec-points in. |
3991ca94 | 325 | AliFMDDebug(1, ("Reconstructing from raw reader")); |
50b9d194 | 326 | AliFMDRawReader rawReader(reader, 0); |
f9ae77c6 | 327 | fBad.Reset(false); |
50b9d194 | 328 | UShort_t det, sec, str, fac; |
329 | Short_t adc, oldDet = -1; | |
330 | Bool_t zs; | |
331 | Char_t rng; | |
818fff8d | 332 | |
333 | UseRecoParam(kTRUE); | |
50b9d194 | 334 | while (rawReader.NextSignal(det, rng, sec, str, adc, zs, fac)) { |
335 | if (det != oldDet) { | |
336 | fZS[det-1] = zs; | |
337 | fZSFactor[det-1] = fac; | |
338 | oldDet = det; | |
339 | } | |
340 | ProcessSignal(det, rng, sec, str, adc); | |
341 | } | |
818fff8d | 342 | UseRecoParam(kFALSE); |
343 | ||
ddaa8027 | 344 | } |
345 | ||
faf80567 | 346 | //____________________________________________________________________ |
347 | void | |
348 | AliFMDReconstructor::Digitize(AliRawReader* reader, TClonesArray* sdigits) const | |
349 | { | |
350 | // Reconstruct directly from raw data (no intermediate output on | |
351 | // digit tree or rec point tree). | |
352 | // | |
353 | // Parameters: | |
354 | // reader Raw event reader | |
355 | // ctree Not used. | |
356 | AliFMDRawReader rawReader(reader, 0); | |
357 | ||
358 | UShort_t det, sec, str, sam, rat, fac; | |
359 | Short_t adc, oldDet = -1; | |
360 | Bool_t zs; | |
361 | Char_t rng; | |
362 | ||
818fff8d | 363 | UseRecoParam(kTRUE); |
faf80567 | 364 | while (rawReader.NextSample(det, rng, sec, str, sam, rat, adc, zs, fac)) { |
365 | if (!rawReader.SelectSample(sam, rat)) continue; | |
366 | if (det != oldDet) { | |
367 | fZS[det-1] = zs; | |
368 | fZSFactor[det-1] = fac; | |
369 | oldDet = det; | |
370 | } | |
371 | DigitizeSignal(sdigits, det, rng, sec, str, sam, adc); | |
372 | } | |
818fff8d | 373 | UseRecoParam(kFALSE); |
faf80567 | 374 | } |
375 | ||
9684be2f | 376 | //____________________________________________________________________ |
377 | void | |
378 | AliFMDReconstructor::Reconstruct(TTree* digitsTree, | |
379 | TTree* clusterTree) const | |
380 | { | |
381 | // Reconstruct event from digits in tree | |
382 | // Get the FMD branch holding the digits. | |
383 | // FIXME: The vertex may not be known yet, so we may have to move | |
384 | // some of this to FillESD. | |
50b9d194 | 385 | // |
386 | // Parameters: | |
387 | // digitsTree Pointer to a tree containing digits | |
388 | // clusterTree Pointer to output tree | |
389 | // | |
75609cab | 390 | if (!fMult) fMult = new TClonesArray("AliFMDRecPoint"); |
391 | ||
3991ca94 | 392 | AliFMDDebug(1, ("Reconstructing from digits in a tree")); |
8983e5ae | 393 | GetVertex(fESD); |
86878381 | 394 | |
75609cab | 395 | |
396 | ||
86878381 | 397 | static TClonesArray* digits = new TClonesArray("AliFMDDigit"); |
75609cab | 398 | TBranch* digitBranch = digitsTree->GetBranch("FMD"); |
4347b38f | 399 | if (!digitBranch) { |
1a1fdef7 | 400 | Error("Exec", "No digit branch for the FMD found"); |
401 | return; | |
4347b38f | 402 | } |
1a1fdef7 | 403 | digitBranch->SetAddress(&digits); |
4347b38f | 404 | |
75609cab | 405 | if (digits) digits->Clear(); |
8f6ee336 | 406 | if (fMult) fMult->Clear(); |
407 | if (fESDObj) fESDObj->Clear(); | |
408 | ||
409 | fNMult = 0; | |
410 | fTreeR = clusterTree; | |
411 | fTreeR->Branch("FMD", &fMult); | |
412 | ||
f95a63c4 | 413 | AliFMDDebug(5, ("Getting entry 0 from digit branch")); |
1a1fdef7 | 414 | digitBranch->GetEntry(0); |
415 | ||
3991ca94 | 416 | AliFMDDebug(5, ("Processing digits")); |
818fff8d | 417 | UseRecoParam(kTRUE); |
e802be3e | 418 | ProcessDigits(digits); |
818fff8d | 419 | UseRecoParam(kFALSE); |
e802be3e | 420 | |
8f6ee336 | 421 | Int_t written = clusterTree->Fill(); |
f95a63c4 | 422 | AliFMDDebug(10, ("Filled %d bytes into cluster tree", written)); |
75609cab | 423 | // digits->Delete(); |
86878381 | 424 | // delete digits; |
4347b38f | 425 | } |
1a1fdef7 | 426 | |
8f6ee336 | 427 | |
4347b38f | 428 | //____________________________________________________________________ |
e802be3e | 429 | void |
430 | AliFMDReconstructor::ProcessDigits(TClonesArray* digits) const | |
4347b38f | 431 | { |
69b696b9 | 432 | // For each digit, find the pseudo rapdity, azimuthal angle, and |
433 | // number of corrected ADC counts, and pass it on to the algorithms | |
434 | // used. | |
50b9d194 | 435 | // |
436 | // Parameters: | |
437 | // digits Array of digits | |
438 | // | |
e802be3e | 439 | Int_t nDigits = digits->GetEntries(); |
3991ca94 | 440 | AliFMDDebug(2, ("Got %d digits", nDigits)); |
a9579262 | 441 | fESDObj->SetNoiseFactor(fNoiseFactor); |
442 | fESDObj->SetAngleCorrected(fAngleCorrect); | |
f9ae77c6 | 443 | fBad.Reset(false); |
e802be3e | 444 | for (Int_t i = 0; i < nDigits; i++) { |
445 | AliFMDDigit* digit = static_cast<AliFMDDigit*>(digits->At(i)); | |
50b9d194 | 446 | if (!digit) continue; |
447 | ProcessDigit(digit); | |
448 | } | |
449 | } | |
8f6ee336 | 450 | |
50b9d194 | 451 | //____________________________________________________________________ |
452 | void | |
453 | AliFMDReconstructor::ProcessDigit(AliFMDDigit* digit) const | |
454 | { | |
09b6c804 | 455 | // |
456 | // Process a single digit | |
457 | // | |
458 | // Parameters: | |
459 | // digit Digiti to process | |
460 | // | |
50b9d194 | 461 | UShort_t det = digit->Detector(); |
462 | Char_t rng = digit->Ring(); | |
463 | UShort_t sec = digit->Sector(); | |
464 | UShort_t str = digit->Strip(); | |
465 | Short_t adc = digit->Counts(); | |
a0354a2a | 466 | |
50b9d194 | 467 | ProcessSignal(det, rng, sec, str, adc); |
468 | } | |
469 | ||
470 | //____________________________________________________________________ | |
471 | void | |
472 | AliFMDReconstructor::ProcessSignal(UShort_t det, | |
473 | Char_t rng, | |
474 | UShort_t sec, | |
475 | UShort_t str, | |
476 | Short_t adc) const | |
477 | { | |
478 | // Process the signal from a single strip | |
479 | // | |
480 | // Parameters: | |
481 | // det Detector ID | |
482 | // rng Ring ID | |
483 | // sec Sector ID | |
484 | // rng Strip ID | |
485 | // adc ADC counts | |
486 | // | |
f9ae77c6 | 487 | if (adc >= AliFMDRawReader::kBadSignal) { |
488 | AliFMDDebug(1, ("FMD%d%c[%2d,%3d] is marked bad", det, rng, sec, str)); | |
489 | fBad(det,rng,sec,str) = true; | |
490 | return; | |
491 | } | |
492 | ||
50b9d194 | 493 | // Check that the strip is not marked as dead |
f9ae77c6 | 494 | AliFMDParameters* param = AliFMDParameters::Instance(); |
50b9d194 | 495 | if (param->IsDead(det, rng, sec, str)) { |
86878381 | 496 | AliFMDDebug(1, ("FMD%d%c[%2d,%3d] is dead", det, rng, sec, str)); |
f9ae77c6 | 497 | fBad(det,rng,sec,str) = true; |
50b9d194 | 498 | return; |
499 | } | |
500 | ||
501 | // digit->Print(); | |
502 | // Get eta and phi | |
503 | Float_t eta, phi; | |
504 | PhysicalCoordinates(det, rng, sec, str, eta, phi); | |
4347b38f | 505 | |
50b9d194 | 506 | // Substract pedestal. |
507 | UShort_t counts = SubtractPedestal(det, rng, sec, str, adc); | |
508 | if(counts == USHRT_MAX) return; | |
509 | ||
8f6ee336 | 510 | // Gain match digits. |
50b9d194 | 511 | Double_t edep = Adc2Energy(det, rng, sec, str, eta, counts); |
512 | // Get rid of nonsense energy | |
513 | if(edep < 0) return; | |
514 | ||
515 | // Make rough multiplicity | |
516 | Double_t mult = Energy2Multiplicity(det, rng, sec, str, edep); | |
517 | // Get rid of nonsense mult | |
6eb2922a | 518 | //if (mult > 20) { |
519 | // AliWarning(Form("The mutliplicity in FMD%d%c[%2d,%3d]=%f > 20 " | |
520 | // "(ADC: %d, Energy: %f)", det, rng, sec, str, mult, | |
521 | // counts, edep)); | |
522 | // } | |
50b9d194 | 523 | if (mult < 0) return; |
3991ca94 | 524 | AliFMDDebug(10, ("FMD%d%c[%2d,%3d]: " |
50b9d194 | 525 | "ADC: %d, Counts: %d, Energy: %f, Mult: %f", |
526 | det, rng, sec, str, adc, counts, edep, mult)); | |
527 | ||
528 | // Create a `RecPoint' on the output branch. | |
529 | if (fMult) { | |
530 | AliFMDRecPoint* m = | |
531 | new ((*fMult)[fNMult]) AliFMDRecPoint(det, rng, sec, str, | |
532 | eta, phi, edep, mult); | |
533 | (void)m; // Suppress warnings about unused variables. | |
534 | fNMult++; | |
4347b38f | 535 | } |
50b9d194 | 536 | |
537 | fESDObj->SetMultiplicity(det, rng, sec, str, mult); | |
538 | fESDObj->SetEta(det, rng, sec, str, eta); | |
539 | ||
540 | if (fDiagAll) fDiagAll->Fill(adc, mult); | |
541 | ||
4347b38f | 542 | } |
8f6ee336 | 543 | |
faf80567 | 544 | //____________________________________________________________________ |
545 | void | |
546 | AliFMDReconstructor::DigitizeSignal(TClonesArray* sdigits, | |
547 | UShort_t det, | |
548 | Char_t rng, | |
549 | UShort_t sec, | |
550 | UShort_t str, | |
551 | UShort_t /* sam */, | |
552 | Short_t adc) const | |
553 | { | |
554 | // Process the signal from a single strip | |
555 | // | |
556 | // Parameters: | |
557 | // det Detector ID | |
558 | // rng Ring ID | |
559 | // sec Sector ID | |
560 | // rng Strip ID | |
561 | // adc ADC counts | |
562 | // | |
563 | AliFMDParameters* param = AliFMDParameters::Instance(); | |
564 | // Check that the strip is not marked as dead | |
565 | if (param->IsDead(det, rng, sec, str)) { | |
566 | AliFMDDebug(10, ("FMD%d%c[%2d,%3d] is dead", det, rng, sec, str)); | |
567 | return; | |
568 | } | |
569 | ||
570 | // Substract pedestal. | |
571 | UShort_t counts = SubtractPedestal(det, rng, sec, str, adc); | |
572 | if(counts == USHRT_MAX || counts == 0) return; | |
573 | ||
574 | // Gain match digits. | |
575 | Double_t edep = Adc2Energy(det, rng, sec, str, counts); | |
576 | // Get rid of nonsense energy | |
577 | if(edep < 0) return; | |
578 | ||
579 | Int_t n = sdigits->GetEntriesFast(); | |
580 | // AliFMDSDigit* sdigit = | |
581 | new ((*sdigits)[n]) | |
582 | AliFMDSDigit(det, rng, sec, str, edep, counts, counts, counts, counts); | |
583 | // sdigit->SetCount(sam, counts); | |
584 | } | |
585 | ||
586 | //____________________________________________________________________ | |
587 | UShort_t | |
588 | AliFMDReconstructor::SubtractPedestal(UShort_t det, | |
589 | Char_t rng, | |
590 | UShort_t sec, | |
591 | UShort_t str, | |
592 | UShort_t adc, | |
593 | Float_t noiseFactor, | |
594 | Bool_t zsEnabled, | |
595 | UShort_t zsNoiseFactor) const | |
596 | { | |
09b6c804 | 597 | // |
598 | // Subtract the pedestal off the ADC counts. | |
599 | // | |
600 | // Parameters: | |
601 | // det Detector number | |
602 | // rng Ring identifier | |
603 | // sec Sector number | |
604 | // str Strip number | |
605 | // adc ADC counts | |
606 | // noiseFactor If pedestal substracted pedestal is less then | |
607 | // this times the noise, then consider this to be 0. | |
608 | // zsEnabled Whether zero-suppression is on. | |
609 | // zsNoiseFactor Noise factor used in on-line pedestal | |
610 | // subtraction. | |
611 | // | |
612 | // Return: | |
613 | // The pedestal subtracted ADC counts (possibly 0), or @c | |
614 | // USHRT_MAX in case of problems. | |
615 | // | |
faf80567 | 616 | AliFMDParameters* param = AliFMDParameters::Instance(); |
617 | Float_t ped = (zsEnabled ? 0 : | |
618 | param->GetPedestal(det, rng, sec, str)); | |
619 | Float_t noise = param->GetPedestalWidth(det, rng, sec, str); | |
620 | if(ped < 0 || noise < 0) { | |
621 | AliWarningClass(Form("Invalid pedestal (%f) or noise (%f) " | |
622 | "for FMD%d%c[%02d,%03d]", | |
623 | ped, noise, det, rng, sec, str)); | |
624 | return USHRT_MAX; | |
625 | } | |
626 | AliDebugClass(15, Form("Subtracting pedestal for FMD%d%c[%2d,%3d]=%4d " | |
627 | "(%s w/factor %d, noise factor %f, " | |
628 | "pedestal %8.2f+/-%8.2f)", | |
629 | det, rng, sec, str, adc, | |
630 | (zsEnabled ? "zs'ed" : "straight"), | |
631 | zsNoiseFactor, noiseFactor, ped, noise)); | |
632 | ||
633 | Int_t counts = adc + Int_t(zsEnabled ? zsNoiseFactor * noise : - ped); | |
634 | counts = TMath::Max(Int_t(counts), 0); | |
635 | // Calculate the noise factor for suppressing remenants of the noise | |
636 | // peak. If we have done on-line zero suppression, we only check | |
637 | // for noise signals that are larger than the suppressed noise. If | |
638 | // the noise factor used on line is larger than the factor used | |
639 | // here, we do not do this check at all. | |
640 | // | |
641 | // For example: | |
642 | // Online factor | Read factor | Result | |
643 | // ---------------+--------------+------------------------------- | |
644 | // 2 | 3 | Check if signal > 1 * noise | |
645 | // 3 | 3 | Check if signal > 0 | |
646 | // 3 | 2 | Check if signal > 0 | |
647 | // | |
648 | // In this way, we make sure that we do not suppress away too much | |
649 | // data, and that the read-factor is the most stringent cut. | |
650 | Float_t nf = TMath::Max(0.F, noiseFactor - (zsEnabled ? zsNoiseFactor : 0)); | |
651 | if (counts < noise * nf) counts = 0; | |
652 | if (counts > 0) AliDebugClass(15, "Got a hit strip"); | |
653 | ||
86878381 | 654 | UShort_t ret = counts < 0 ? 0 : counts; |
655 | return ret; | |
faf80567 | 656 | } |
50b9d194 | 657 | |
658 | ||
1a1fdef7 | 659 | //____________________________________________________________________ |
660 | UShort_t | |
50b9d194 | 661 | AliFMDReconstructor::SubtractPedestal(UShort_t det, |
662 | Char_t rng, | |
663 | UShort_t sec, | |
664 | UShort_t str, | |
665 | Short_t adc) const | |
1a1fdef7 | 666 | { |
667 | // Member function to subtract the pedestal from a digit | |
50b9d194 | 668 | // |
669 | // Parameters: | |
670 | // det Detector ID | |
671 | // rng Ring ID | |
672 | // sec Sector ID | |
673 | // rng Strip ID | |
674 | // adc # of ADC counts | |
675 | // Return: | |
676 | // Pedestal subtracted signal or USHRT_MAX in case of problems | |
677 | // | |
faf80567 | 678 | UShort_t counts = SubtractPedestal(det, rng, sec, str, adc, |
679 | fNoiseFactor, fZS[det-1], | |
680 | fZSFactor[det-1]); | |
9684be2f | 681 | if (fDiagStep1) fDiagStep1->Fill(adc, counts); |
8f6ee336 | 682 | |
faf80567 | 683 | return counts; |
1a1fdef7 | 684 | } |
685 | ||
8f6ee336 | 686 | //____________________________________________________________________ |
687 | Float_t | |
50b9d194 | 688 | AliFMDReconstructor::Adc2Energy(UShort_t det, |
689 | Char_t rng, | |
690 | UShort_t sec, | |
691 | UShort_t str, | |
50b9d194 | 692 | UShort_t count) const |
8f6ee336 | 693 | { |
694 | // Converts number of ADC counts to energy deposited. | |
695 | // Note, that this member function can be overloaded by derived | |
696 | // classes to do strip-specific look-ups in databases or the like, | |
697 | // to find the proper gain for a strip. | |
698 | // | |
68aba90a | 699 | // In the first simple version, we calculate the energy deposited as |
8f6ee336 | 700 | // |
701 | // EnergyDeposited = cos(theta) * gain * count | |
702 | // | |
703 | // where | |
704 | // | |
705 | // Pre_amp_MIP_Range | |
706 | // gain = ----------------- * Energy_deposited_per_MIP | |
707 | // ADC_channel_size | |
708 | // | |
709 | // is constant and the same for all strips. | |
68aba90a | 710 | // |
711 | // For the production we use the conversion measured in the NBI lab. | |
712 | // The total conversion is then: | |
50b9d194 | 713 | // |
714 | // gain = ADC / DAC | |
715 | // | |
716 | // EdepMip * count | |
717 | // => energy = ---------------- | |
718 | // gain * DACPerADC | |
719 | // | |
720 | // Parameters: | |
721 | // det Detector ID | |
722 | // rng Ring ID | |
723 | // sec Sector ID | |
724 | // rng Strip ID | |
50b9d194 | 725 | // counts Number of ADC counts over pedestal |
726 | // Return | |
727 | // The energy deposited in a single strip, or -1 in case of problems | |
68aba90a | 728 | // |
a9579262 | 729 | if (count <= 0) return 0; |
8f6ee336 | 730 | AliFMDParameters* param = AliFMDParameters::Instance(); |
50b9d194 | 731 | Float_t gain = param->GetPulseGain(det, rng, sec, str); |
68aba90a | 732 | // 'Tagging' bad gains as bad energy |
733 | if (gain < 0) { | |
50b9d194 | 734 | AliWarning(Form("Invalid gain (%f) for FMD%d%c[%02d,%03d]", |
735 | gain, det, rng, sec, str)); | |
68aba90a | 736 | return -1; |
737 | } | |
50b9d194 | 738 | AliFMDDebug(5, ("Converting counts %d to energy (factor=%f, DAC2MIP=%f)", |
68aba90a | 739 | count, gain,param->GetDACPerMIP())); |
a9579262 | 740 | |
50b9d194 | 741 | Double_t edep = ((count * param->GetEdepMip()) |
742 | / (gain * param->GetDACPerMIP())); | |
faf80567 | 743 | return edep; |
744 | } | |
745 | ||
746 | //____________________________________________________________________ | |
747 | Float_t | |
748 | AliFMDReconstructor::Adc2Energy(UShort_t det, | |
749 | Char_t rng, | |
750 | UShort_t sec, | |
751 | UShort_t str, | |
752 | Float_t eta, | |
753 | UShort_t count) const | |
754 | { | |
755 | // Converts number of ADC counts to energy deposited. | |
756 | // Note, that this member function can be overloaded by derived | |
757 | // classes to do strip-specific look-ups in databases or the like, | |
758 | // to find the proper gain for a strip. | |
759 | // | |
760 | // In the first simple version, we calculate the energy deposited as | |
761 | // | |
762 | // EnergyDeposited = cos(theta) * gain * count | |
763 | // | |
764 | // where | |
765 | // | |
766 | // Pre_amp_MIP_Range | |
767 | // gain = ----------------- * Energy_deposited_per_MIP | |
768 | // ADC_channel_size | |
769 | // | |
770 | // is constant and the same for all strips. | |
771 | // | |
772 | // For the production we use the conversion measured in the NBI lab. | |
773 | // The total conversion is then: | |
774 | // | |
775 | // gain = ADC / DAC | |
776 | // | |
777 | // EdepMip * count | |
778 | // => energy = ---------------- | |
779 | // gain * DACPerADC | |
780 | // | |
781 | // Parameters: | |
782 | // det Detector ID | |
783 | // rng Ring ID | |
784 | // sec Sector ID | |
785 | // rng Strip ID | |
786 | // eta Psuedo-rapidity | |
787 | // counts Number of ADC counts over pedestal | |
788 | // Return | |
789 | // The energy deposited in a single strip, or -1 in case of problems | |
790 | // | |
791 | Double_t edep = Adc2Energy(det, rng, sec, str, count); | |
792 | ||
9684be2f | 793 | if (fDiagStep2) fDiagStep2->Fill(count, edep); |
a9579262 | 794 | if (fAngleCorrect) { |
9684be2f | 795 | Double_t theta = 2 * TMath::ATan(TMath::Exp(-eta)); |
796 | Double_t corr = TMath::Abs(TMath::Cos(theta)); | |
797 | Double_t cedep = corr * edep; | |
f95a63c4 | 798 | AliFMDDebug(10, ("correcting for path %f * %f = %f (eta=%f, theta=%f)", |
9684be2f | 799 | edep, corr, cedep, eta, theta)); |
800 | if (fDiagStep3) fDiagStep3->Fill(edep, cedep); | |
801 | edep = cedep; | |
a9579262 | 802 | } |
8f6ee336 | 803 | return edep; |
804 | } | |
805 | ||
806 | //____________________________________________________________________ | |
807 | Float_t | |
50b9d194 | 808 | AliFMDReconstructor::Energy2Multiplicity(UShort_t /*det*/, |
809 | Char_t /*rng*/, | |
810 | UShort_t /*sec*/, | |
811 | UShort_t /*str*/, | |
812 | Float_t edep) const | |
8f6ee336 | 813 | { |
814 | // Converts an energy signal to number of particles. | |
815 | // Note, that this member function can be overloaded by derived | |
816 | // classes to do strip-specific look-ups in databases or the like, | |
817 | // to find the proper gain for a strip. | |
818 | // | |
819 | // In this simple version, we calculate the multiplicity as | |
820 | // | |
821 | // multiplicity = Energy_deposited / Energy_deposited_per_MIP | |
822 | // | |
823 | // where | |
824 | // | |
825 | // Energy_deposited_per_MIP = 1.664 * SI_density * SI_thickness | |
826 | // | |
827 | // is constant and the same for all strips | |
50b9d194 | 828 | // |
829 | // Parameters: | |
830 | // det Detector ID | |
831 | // rng Ring ID | |
832 | // sec Sector ID | |
833 | // rng Strip ID | |
834 | // edep Energy deposited in a single strip | |
835 | // Return | |
836 | // The "bare" multiplicity corresponding to the energy deposited | |
8f6ee336 | 837 | AliFMDParameters* param = AliFMDParameters::Instance(); |
838 | Double_t edepMIP = param->GetEdepMip(); | |
839 | Float_t mult = edep / edepMIP; | |
68aba90a | 840 | #if 0 |
8f6ee336 | 841 | if (edep > 0) |
f95a63c4 | 842 | AliFMDDebug(15, ("Translating energy %f to multiplicity via " |
8f6ee336 | 843 | "divider %f->%f", edep, edepMIP, mult)); |
68aba90a | 844 | #endif |
9684be2f | 845 | if (fDiagStep4) fDiagStep4->Fill(edep, mult); |
8f6ee336 | 846 | return mult; |
847 | } | |
848 | ||
849 | //____________________________________________________________________ | |
850 | void | |
50b9d194 | 851 | AliFMDReconstructor::PhysicalCoordinates(UShort_t det, |
852 | Char_t rng, | |
853 | UShort_t sec, | |
854 | UShort_t str, | |
8f6ee336 | 855 | Float_t& eta, |
856 | Float_t& phi) const | |
857 | { | |
858 | // Get the eta and phi of a digit | |
859 | // | |
50b9d194 | 860 | // Parameters: |
861 | // det Detector ID | |
862 | // rng Ring ID | |
863 | // sec Sector ID | |
864 | // rng Strip ID | |
865 | // eta On return, contains the psuedo-rapidity of the strip | |
866 | // phi On return, contains the azimuthal angle of the strip | |
867 | // | |
9b48326f | 868 | AliFMDGeometry* geom = AliFMDGeometry::Instance(); |
75609cab | 869 | Double_t x, y, z, r, theta, deta, dphi; |
50b9d194 | 870 | geom->Detector2XYZ(det, rng, sec, str, x, y, z); |
75609cab | 871 | |
bf000c32 | 872 | // Correct for vertex offset. |
8161c5f7 | 873 | z -= fCurrentVertex; |
75609cab | 874 | AliFMDGeometry::XYZ2REtaPhiTheta(x, y, z, r, deta, dphi, theta); |
875 | eta = deta; | |
876 | phi = dphi; | |
8f6ee336 | 877 | } |
878 | ||
182e56d0 | 879 | namespace { |
880 | class ESDPrinter : public AliESDFMD::ForOne | |
881 | { | |
882 | public: | |
883 | ESDPrinter() {} | |
884 | Bool_t operator()(UShort_t d, Char_t r, UShort_t s, UShort_t t, | |
885 | Float_t m, Float_t e) | |
886 | { | |
887 | if (m > 0 && m != AliESDFMD::kInvalidMult) | |
888 | printf(" FMD%d%c[%2d,%3d] = %6.3f / %6.3f\n", d, r, s, t, m, e); | |
889 | return kTRUE; | |
890 | } | |
891 | }; | |
892 | } | |
893 | ||
8f6ee336 | 894 | |
4347b38f | 895 | //____________________________________________________________________ |
896 | void | |
1a1fdef7 | 897 | AliFMDReconstructor::FillESD(TTree* /* digitsTree */, |
898 | TTree* /* clusterTree */, | |
af885e0f | 899 | AliESDEvent* esd) const |
121a60bd | 900 | { |
42403906 | 901 | // nothing to be done |
69b696b9 | 902 | // FIXME: The vertex may not be known when Reconstruct is executed, |
903 | // so we may have to move some of that member function here. | |
f95a63c4 | 904 | AliFMDDebug(2, ("Calling FillESD with two trees and one ESD")); |
8f6ee336 | 905 | // fESDObj->Print(); |
906 | ||
75609cab | 907 | // Fix up ESD so that only truely dead channels get the kInvalidMult flag. |
908 | MarkDeadChannels(fESDObj); | |
909 | ||
50b9d194 | 910 | Double_t oldVz = fCurrentVertex; |
8983e5ae | 911 | GetVertex(esd); |
50b9d194 | 912 | if (fVertexType != kNoVertex) { |
913 | AliFMDDebug(2, ("Revertexing the ESD data to vz=%f (was %f)", | |
914 | fCurrentVertex, oldVz)); | |
915 | AliFMDESDRevertexer revertexer; | |
916 | revertexer.Revertex(fESDObj, fCurrentVertex); | |
917 | } | |
182e56d0 | 918 | |
919 | if (AliDebugLevel() > 10) { | |
920 | ESDPrinter p; | |
921 | fESDObj->ForEach(p); | |
922 | } | |
50b9d194 | 923 | |
8f6ee336 | 924 | if (esd) { |
f95a63c4 | 925 | AliFMDDebug(2, ("Writing FMD data to ESD tree")); |
8f6ee336 | 926 | esd->SetFMDData(fESDObj); |
a3537838 | 927 | } |
9684be2f | 928 | |
929 | if (!fDiagnostics || !esd) return; | |
930 | static bool first = true; | |
69893a66 | 931 | // This is most likely NOT the event number you'd like to use. It |
932 | // has nothing to do with the 'real' event number. | |
933 | // - That's OK. We just use it for the name of the directory - | |
934 | // nothing else. Christian | |
935 | Int_t evno = esd->GetEventNumberInFile(); | |
3991ca94 | 936 | AliFMDDebug(3, ("Writing diagnostics histograms to FMD.Diag.root/%03d",evno)); |
9684be2f | 937 | TFile f("FMD.Diag.root", (first ? "RECREATE" : "UPDATE")); |
938 | first = false; | |
939 | f.cd(); | |
940 | TDirectory* d = f.mkdir(Form("%03d", evno), | |
941 | Form("Diagnostics histograms for event # %d", evno)); | |
942 | d->cd(); | |
943 | if (fDiagStep1) fDiagStep1->Write(); | |
944 | if (fDiagStep2) fDiagStep2->Write(); | |
945 | if (fDiagStep3) fDiagStep3->Write(); | |
946 | if (fDiagStep4) fDiagStep4->Write(); | |
947 | if (fDiagAll) fDiagAll->Write(); | |
948 | d->Write(); | |
949 | f.Write(); | |
950 | f.Close(); | |
951 | ||
952 | if (fDiagStep1) fDiagStep1->Reset(); | |
953 | if (fDiagStep2) fDiagStep2->Reset(); | |
954 | if (fDiagStep3) fDiagStep3->Reset(); | |
955 | if (fDiagStep4) fDiagStep4->Reset(); | |
956 | if (fDiagAll) fDiagAll->Reset(); | |
121a60bd | 957 | } |
958 | ||
ddaa8027 | 959 | //____________________________________________________________________ |
960 | void | |
961 | AliFMDReconstructor::FillESD(AliRawReader*, TTree* clusterTree, | |
962 | AliESDEvent* esd) const | |
963 | { | |
09b6c804 | 964 | // |
965 | // Forwards to above member function | |
966 | // | |
ddaa8027 | 967 | TTree* dummy = 0; |
968 | FillESD(dummy, clusterTree, esd); | |
969 | } | |
42403906 | 970 | //____________________________________________________________________ |
971 | // | |
972 | // EOF | |
973 | // |