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1 | /************************************************************************** | |
2 | * Copyright(c) 1998-2003, ALICE Experiment at CERN, All rights reserved. * | |
3 | * * | |
4 | * Author: The ALICE Off-line Project. * | |
5 | * Contributors are mentioned in the code where appropriate. * | |
6 | * * | |
7 | * Permission to use, copy, modify and distribute this software and its * | |
8 | * documentation strictly for non-commercial purposes is hereby granted * | |
9 | * without fee, provided that the above copyright notice appears in all * | |
10 | * copies and that both the copyright notice and this permission notice * | |
11 | * appear in the supporting documentation. The authors make no claims * | |
12 | * about the suitability of this software for any purpose. It is * | |
13 | * provided "as is" without express or implied warranty. * | |
14 | **************************************************************************/ | |
15 | ||
16 | /* $Id$*/ | |
17 | ||
18 | //////////////////////////////////////////////////////////////////////////// | |
19 | // Implementation of the ITS clusterer V2 class // | |
20 | // // | |
21 | // Origin: Iouri Belikov, CERN, Jouri.Belikov@cern.ch // | |
22 | // // | |
23 | /////////////////////////////////////////////////////////////////////////// | |
24 | ||
25 | ||
26 | ||
27 | #include <TClonesArray.h> | |
28 | #include <TBits.h> | |
29 | #include "AliITSClusterFinderV2SDD.h" | |
30 | #include "AliITSRecPoint.h" | |
31 | #include "AliITSRecPointContainer.h" | |
32 | #include "AliITSDetTypeRec.h" | |
33 | #include "AliRawReader.h" | |
34 | #include "AliITSRawStreamSDD.h" | |
35 | #include "AliITSRawStreamSDDCompressed.h" | |
36 | #include "AliITSCalibrationSDD.h" | |
37 | #include "AliITSresponseSDD.h" | |
38 | #include "AliITSDetTypeRec.h" | |
39 | #include "AliITSReconstructor.h" | |
40 | #include "AliITSsegmentationSDD.h" | |
41 | #include "AliITSdigitSDD.h" | |
42 | #include "AliITSgeomTGeo.h" | |
43 | ||
44 | ClassImp(AliITSClusterFinderV2SDD) | |
45 | ||
46 | AliITSClusterFinderV2SDD::AliITSClusterFinderV2SDD(AliITSDetTypeRec* dettyp):AliITSClusterFinder(dettyp), | |
47 | fNAnodes(0), | |
48 | fNTimeBins(0), | |
49 | fNZbins(0), | |
50 | fNXbins(0), | |
51 | fCutOnPeakLoose(0.), | |
52 | fCutOnPeakTight(0.), | |
53 | fMaxDrTimeForTightCut(0.) | |
54 | { | |
55 | //Default constructor | |
56 | ||
57 | fNAnodes = GetSeg()->NpzHalf(); | |
58 | fNZbins = fNAnodes+2; | |
59 | fNTimeBins = GetSeg()->Npx(); | |
60 | fNXbins = fNTimeBins+2; | |
61 | AliDebug(2,Form("Cells in SDD cluster finder: Andoes=%d TimeBins=%d",fNAnodes,fNTimeBins)); | |
62 | const Int_t kMaxBin=fNZbins*fNXbins; | |
63 | for(Int_t iHyb=0;iHyb<kHybridsPerDDL;iHyb++){ | |
64 | fDDLBins[iHyb]=new AliBin[kMaxBin]; | |
65 | } | |
66 | SetPeakSelection(15.,30.,2000.); | |
67 | } | |
68 | ||
69 | ||
70 | //______________________________________________________________________ | |
71 | AliITSClusterFinderV2SDD::~AliITSClusterFinderV2SDD() | |
72 | { | |
73 | //Destructor | |
74 | for(Int_t iHyb=0;iHyb<kHybridsPerDDL;iHyb++){ | |
75 | delete [] fDDLBins[iHyb]; | |
76 | } | |
77 | } | |
78 | ||
79 | //______________________________________________________________________ | |
80 | void AliITSClusterFinderV2SDD::FindRawClusters(Int_t mod){ | |
81 | ||
82 | //Find clusters V2 | |
83 | SetModule(mod); | |
84 | FindClustersSDD(fDigits); | |
85 | ||
86 | } | |
87 | ||
88 | //______________________________________________________________________ | |
89 | void AliITSClusterFinderV2SDD::FindClustersSDD(TClonesArray *digits) { | |
90 | //------------------------------------------------------------ | |
91 | // Actual SDD cluster finder | |
92 | //------------------------------------------------------------ | |
93 | ||
94 | const Int_t kMaxBin=fNZbins*fNXbins; | |
95 | AliBin *bins[2]; | |
96 | bins[0]=new AliBin[kMaxBin]; | |
97 | bins[1]=new AliBin[kMaxBin]; | |
98 | TBits *anodeFired[2]; | |
99 | anodeFired[0]=new TBits(fNAnodes); | |
100 | anodeFired[1]=new TBits(fNAnodes); | |
101 | anodeFired[0]->ResetAllBits(); | |
102 | anodeFired[1]->ResetAllBits(); | |
103 | AliITSCalibrationSDD* cal = (AliITSCalibrationSDD*)GetResp(fModule); | |
104 | if(cal==0){ | |
105 | AliError(Form("Calibration object not present for SDD module %d\n",fModule)); | |
106 | return; | |
107 | } | |
108 | ||
109 | AliITSdigitSDD *d=0; | |
110 | Int_t i, ndigits=digits->GetEntriesFast(); | |
111 | for (i=0; i<ndigits; i++) { | |
112 | d=(AliITSdigitSDD*)digits->UncheckedAt(i); | |
113 | Int_t ian=d->GetCoord1(); | |
114 | Int_t itb=d->GetCoord2(); | |
115 | //Int_t iSide=0; | |
116 | //if (ian >= fNAnodes) iSide=1; | |
117 | Float_t gain=cal->GetChannelGain(ian)/fDetTypeRec->GetAverageGainSDD(); | |
118 | Float_t charge=d->GetSignal(); // returns expanded signal | |
119 | // (10 bit, low threshold already added) | |
120 | Float_t baseline = cal->GetBaseline(ian); | |
121 | if(charge>baseline) charge-=baseline; | |
122 | else charge=0; | |
123 | ||
124 | if(gain>0.){ // Bad channels have gain=0. | |
125 | charge/=gain; | |
126 | if(charge<cal->GetThresholdAnode(ian)) continue; | |
127 | Int_t q=(Int_t)(charge+0.5); | |
128 | Int_t y=itb+1; | |
129 | Int_t z=ian+1; | |
130 | if (z <= fNAnodes){ | |
131 | bins[0][y*fNZbins+z].SetQ(q); | |
132 | bins[0][y*fNZbins+z].SetMask(1); | |
133 | bins[0][y*fNZbins+z].SetIndex(i); | |
134 | anodeFired[0]->SetBitNumber(ian); | |
135 | } else { | |
136 | z-=fNAnodes; | |
137 | bins[1][y*fNZbins+z].SetQ(q); | |
138 | bins[1][y*fNZbins+z].SetMask(1); | |
139 | bins[1][y*fNZbins+z].SetIndex(i); | |
140 | anodeFired[1]->SetBitNumber(ian-fNAnodes); | |
141 | } | |
142 | } | |
143 | } | |
144 | ||
145 | FindClustersSDD(bins, anodeFired, digits); | |
146 | ||
147 | delete[] bins[0]; | |
148 | delete[] bins[1]; | |
149 | delete anodeFired[0]; | |
150 | delete anodeFired[1]; | |
151 | ||
152 | } | |
153 | ||
154 | //______________________________________________________________________ | |
155 | void AliITSClusterFinderV2SDD:: | |
156 | FindClustersSDD(AliBin* bins[2], TBits* anodeFired[2], | |
157 | TClonesArray *digits, TClonesArray *clusters, Int_t jitter) { | |
158 | //------------------------------------------------------------ | |
159 | // Actual SDD cluster finder | |
160 | //------------------------------------------------------------ | |
161 | ||
162 | static AliITSRecoParam *repa = NULL; | |
163 | if(!repa){ | |
164 | repa = (AliITSRecoParam*) AliITSReconstructor::GetRecoParam(); | |
165 | if(!repa){ | |
166 | repa = AliITSRecoParam::GetHighFluxParam(); | |
167 | AliWarning("Using default AliITSRecoParam class"); | |
168 | } | |
169 | } | |
170 | const TGeoHMatrix *mT2L=AliITSgeomTGeo::GetTracking2LocalMatrix(fModule); | |
171 | AliITSCalibrationSDD* cal = (AliITSCalibrationSDD*)GetResp(fModule); | |
172 | if(cal==0){ | |
173 | AliError(Form("Calibration object not present for SDD module %d\n",fModule)); | |
174 | return; | |
175 | } | |
176 | const Int_t kMaxBin=fNZbins*fNXbins; | |
177 | Int_t ncl=0; | |
178 | TClonesArray &cl=*clusters; | |
179 | for (Int_t s=0; s<2; s++){ | |
180 | for(Int_t iAnode=0; iAnode<GetSeg()->NpzHalf(); iAnode++){ | |
181 | if(anodeFired[s]->TestBitNumber(iAnode)==kFALSE) continue; | |
182 | for(Int_t iTimeBin=0; iTimeBin<GetSeg()->Npx(); iTimeBin++){ | |
183 | Int_t index=(iTimeBin+1)*fNZbins+(iAnode+1); | |
184 | if (bins[s][index].IsUsed()) continue; | |
185 | if(NoiseSuppress(index,s,bins[s],cal)) continue; | |
186 | Int_t idx[32]; UInt_t msk[32]; Int_t npeaks=0; | |
187 | FindPeaks(index, fNZbins, bins[s], idx, msk, npeaks); | |
188 | ||
189 | if (npeaks>30) continue; | |
190 | if (npeaks==0) continue; | |
191 | ||
192 | Int_t k,l; | |
193 | Int_t nClust; | |
194 | if(repa->GetUseUnfoldingInClusterFinderSDD()){ | |
195 | for (k=0; k<npeaks-1; k++){//mark adjacent peaks | |
196 | if (idx[k] < 0) continue; //this peak is already removed | |
197 | for (l=k+1; l<npeaks; l++) { | |
198 | if (idx[l] < 0) continue; //this peak is already removed | |
199 | Int_t ki=idx[k]/fNZbins, kj=idx[k] - ki*fNZbins; | |
200 | Int_t li=idx[l]/fNZbins, lj=idx[l] - li*fNZbins; | |
201 | Int_t di=TMath::Abs(ki - li); | |
202 | Int_t dj=TMath::Abs(kj - lj); | |
203 | if (di>1 || dj>1) continue; | |
204 | if (bins[s][idx[k]].GetQ() > bins[s][idx[l]].GetQ()) { | |
205 | msk[l]=msk[k]; | |
206 | idx[l]*=-1; | |
207 | } else { | |
208 | msk[k]=msk[l]; | |
209 | idx[k]*=-1; | |
210 | break; | |
211 | } | |
212 | } | |
213 | } | |
214 | nClust=npeaks; | |
215 | }else{ | |
216 | for (k=1; k<npeaks; k++) msk[k]=msk[0]; | |
217 | nClust=1; | |
218 | } | |
219 | Float_t maxADC=0; | |
220 | for (k=0; k<npeaks; k++) { | |
221 | if(idx[k]>0. && bins[s][idx[k]].GetQ() > maxADC) maxADC=bins[s][idx[k]].GetQ(); | |
222 | MarkPeak(TMath::Abs(idx[k]), fNZbins, bins[s], msk[k]); | |
223 | } | |
224 | if(maxADC<fCutOnPeakLoose) continue; | |
225 | ||
226 | for (k=0; k<nClust; k++) { | |
227 | if (idx[k] < 0) continue; //removed peak | |
228 | AliITSRecPoint c; | |
229 | MakeCluster(idx[k], fNZbins, bins[s], msk[k], c); | |
230 | //mi change | |
231 | Int_t milab[10]; | |
232 | for (Int_t ilab=0;ilab<10;ilab++){ | |
233 | milab[ilab]=-2; | |
234 | } | |
235 | ||
236 | if(digits) { | |
237 | for (Int_t di=-2; di<=2;di++){ | |
238 | for (Int_t dj=-2;dj<=2;dj++){ | |
239 | index = idx[k]+di+dj*fNZbins; | |
240 | if (index<0) continue; | |
241 | if (index>=kMaxBin) continue; | |
242 | AliBin *b=&bins[s][index]; | |
243 | if(b->GetQ()<0.1) continue; | |
244 | AliITSdigitSDD* d=(AliITSdigitSDD*)digits->UncheckedAt(b->GetIndex()); | |
245 | for (Int_t itrack=0;itrack<10;itrack++){ | |
246 | Int_t track = (d->GetTracks())[itrack]; | |
247 | if (track>=0) { | |
248 | AddLabel(milab, track); | |
249 | } | |
250 | } | |
251 | } | |
252 | } | |
253 | } | |
254 | else { // raw data | |
255 | if (fRawID2ClusID) milab[0] = fNClusters+1; // RS: store clID+1 as a reference to the cluster | |
256 | } | |
257 | ||
258 | ||
259 | Int_t clSizAnode=fZmax-fZmin+1; | |
260 | Int_t clSizTb=fXmax-fXmin+1; | |
261 | if(repa->GetUseSDDClusterSizeSelection()){ | |
262 | if(clSizTb==1) continue; // cut common mode noise spikes | |
263 | if(clSizAnode>5) continue; // cut common mode noise spikes | |
264 | if(clSizTb>10) continue; // cut clusters on noisy anodes | |
265 | if(cal-> IsAMAt20MHz() && clSizTb>8) continue; // cut clusters on noisy anodes | |
266 | } | |
267 | ||
268 | AliITSresponseSDD* rsdd = fDetTypeRec->GetResponseSDD(); | |
269 | Float_t y=c.GetY(),z=c.GetZ(), q=c.GetQ(); | |
270 | y/=q; z/=q; | |
271 | Float_t zAnode=z-0.5; // to have anode in range 0.-255. and centered on the mid of the pitch | |
272 | Float_t timebin=y-0.5; // to have time bin in range 0.-255. amd centered on the mid of the bin | |
273 | if(s==1) zAnode += GetSeg()->NpzHalf(); // right side has anodes from 256. to 511. | |
274 | Float_t zdet = GetSeg()->GetLocalZFromAnode(zAnode); | |
275 | Float_t driftTimeUncorr = GetSeg()->GetDriftTimeFromTb(timebin)+jitter*rsdd->GetCarlosRXClockPeriod(); | |
276 | Float_t driftTime=driftTimeUncorr-rsdd->GetTimeZero(fModule); | |
277 | if(driftTime<fMaxDrTimeForTightCut && maxADC<fCutOnPeakTight) continue; | |
278 | ||
279 | Float_t driftSpeed = cal->GetDriftSpeedAtAnode(zAnode) + rsdd->GetDeltaVDrift(fModule,zAnode>255); | |
280 | Float_t driftPathMicron = driftTime*driftSpeed; | |
281 | const Double_t kMicronTocm = 1.0e-4; | |
282 | Float_t xdet=(driftPathMicron-GetSeg()->Dx())*kMicronTocm; // xdet is negative | |
283 | if (s==0) xdet=-xdet; // left side has positive local x | |
284 | ||
285 | if(repa->GetUseSDDCorrectionMaps()){ | |
286 | Float_t corrx=0, corrz=0; | |
287 | cal->GetCorrections(zdet,xdet,corrz,corrx,GetSeg()); | |
288 | zdet+=corrz; | |
289 | xdet+=corrx; | |
290 | } | |
291 | ||
292 | Double_t loc[3]={xdet,0.,zdet},trk[3]={0.,0.,0.}; | |
293 | mT2L->MasterToLocal(loc,trk); | |
294 | y=trk[1]; | |
295 | z=trk[2]; | |
296 | ||
297 | q+=(driftTime*rsdd->GetADCvsDriftTime(fModule)); // correction for zero supp. | |
298 | q/=rsdd->GetADCtokeV(fModule); | |
299 | if(cal-> IsAMAt20MHz()) q*=2.; // account for 1/2 sampling freq. | |
300 | if(q<repa->GetMinClusterChargeSDD()) continue; // remove noise clusters | |
301 | ||
302 | Float_t hit[6] = {y, z, 0.0030*0.0030, 0.0020*0.0020, q, 0.}; | |
303 | Int_t info[3] = {clSizTb, clSizAnode, fNlayer[fModule]}; | |
304 | if (digits) CheckLabels2(milab); | |
305 | milab[3]=fNdet[fModule]; | |
306 | AliITSRecPoint cc(milab,hit,info); | |
307 | cc.SetType(nClust*100+npeaks); | |
308 | cc.SetDriftTime(driftTimeUncorr); | |
309 | cc.SetDriftSide(s); | |
310 | cc.SetChargeRatio(maxADC); | |
311 | if(clusters) new (cl[ncl]) AliITSRecPoint(cc); | |
312 | else { | |
313 | fDetTypeRec->AddRecPoint(cc); | |
314 | } | |
315 | fNClusters++; // RS | |
316 | ncl++; | |
317 | } | |
318 | } | |
319 | } | |
320 | } | |
321 | AliDebug(2,Form("Clusters found on SDD module %d (unfolding %d) = %d\n",fModule,repa->GetUseUnfoldingInClusterFinderSDD(),ncl)); | |
322 | ||
323 | } | |
324 | //______________________________________________________________________ | |
325 | void AliITSClusterFinderV2SDD::RawdataToClusters(AliRawReader* rawReader){ | |
326 | //------------------------------------------------------------ | |
327 | // This function creates ITS clusters from raw data | |
328 | //------------------------------------------------------------ | |
329 | fNClusters = 0; //RS | |
330 | AliITSRawStream* inputSDD=AliITSRawStreamSDD::CreateRawStreamSDD(rawReader); | |
331 | AliDebug(1,Form("%s is used",inputSDD->ClassName())); | |
332 | ||
333 | AliITSDDLModuleMapSDD *ddlmap=(AliITSDDLModuleMapSDD*)fDetTypeRec->GetDDLModuleMapSDD(); | |
334 | inputSDD->SetDDLModuleMap(ddlmap); | |
335 | for(Int_t iddl=0; iddl<AliITSDDLModuleMapSDD::GetNDDLs(); iddl++){ | |
336 | for(Int_t icar=0; icar<AliITSDDLModuleMapSDD::GetNModPerDDL();icar++){ | |
337 | Int_t iMod=ddlmap->GetModuleNumber(iddl,icar); | |
338 | if(iMod==-1) continue; | |
339 | AliITSCalibrationSDD* cal = (AliITSCalibrationSDD*)GetResp(iMod); | |
340 | if(cal==0){ | |
341 | AliError(Form("Calibration object not present for SDD module %d\n",iMod)); | |
342 | continue; | |
343 | } | |
344 | Bool_t isZeroSupp=cal->GetZeroSupp(); | |
345 | if(isZeroSupp){ | |
346 | for(Int_t iSid=0; iSid<2; iSid++) inputSDD->SetZeroSuppLowThreshold(iMod-240,iSid,cal->GetZSLowThreshold(iSid)); | |
347 | }else{ | |
348 | for(Int_t iSid=0; iSid<2; iSid++) inputSDD->SetZeroSuppLowThreshold(iMod-240,iSid,0); | |
349 | } | |
350 | } | |
351 | } | |
352 | FindClustersSDD(inputSDD); | |
353 | delete inputSDD; | |
354 | } | |
355 | ||
356 | void AliITSClusterFinderV2SDD::FindClustersSDD(AliITSRawStream* input) | |
357 | { | |
358 | //------------------------------------------------------------ | |
359 | // Actual SDD cluster finder for raw data | |
360 | //------------------------------------------------------------ | |
361 | AliITSRecPointContainer* rpc = AliITSRecPointContainer::Instance(); | |
362 | Int_t nClustersSDD = 0; | |
363 | AliBin *bins[2]; | |
364 | TBits* anodeFired[2]; | |
365 | TBits* ddlAnodeFired[kHybridsPerDDL]; | |
366 | for(Int_t iHyb=0;iHyb<kHybridsPerDDL;iHyb++){ | |
367 | ddlAnodeFired[iHyb]=new TBits(fNAnodes); | |
368 | ddlAnodeFired[iHyb]->ResetAllBits(); | |
369 | } | |
370 | Int_t vectModId[kModulesPerDDL]; | |
371 | for(Int_t iMod=0; iMod<kModulesPerDDL; iMod++) vectModId[iMod]=-1; | |
372 | ||
373 | // read raw data input stream | |
374 | int countRW = 0; //RS | |
375 | if (fRawID2ClusID) fRawID2ClusID->Reset(); //RS if array was provided, we shall store the rawID -> ClusterID | |
376 | // | |
377 | while (input->Next()) { | |
378 | Int_t iModule = input->GetModuleID(); | |
379 | if(iModule<0){ | |
380 | AliWarning(Form("Invalid SDD module number %d\n", iModule)); | |
381 | continue; | |
382 | } | |
383 | Int_t iCarlos =input->GetCarlosId(); | |
384 | Int_t iSide = input->GetChannel(); | |
385 | Int_t iHybrid=iCarlos*2+iSide; | |
386 | ||
387 | if (input->IsCompletedModule()) { | |
388 | // store the module number | |
389 | vectModId[iCarlos]=iModule; | |
390 | } | |
391 | else if (input->IsCompletedDDL()) { | |
392 | // when all data from a DDL was read, search for clusters | |
393 | Int_t jitter=input->GetJitter(); | |
394 | for(Int_t iMod=0; iMod<kModulesPerDDL; iMod++){ | |
395 | if(vectModId[iMod]>=0){ | |
396 | fModule = vectModId[iMod]; | |
397 | TClonesArray* clusters = rpc->UncheckedGetClusters(fModule); | |
398 | bins[0]=fDDLBins[iMod*2]; // first hybrid of the module | |
399 | bins[1]=fDDLBins[iMod*2+1]; // second hybrid of the module | |
400 | anodeFired[0]=ddlAnodeFired[iMod*2]; | |
401 | anodeFired[1]=ddlAnodeFired[iMod*2+1]; | |
402 | FindClustersSDD(bins, anodeFired, NULL, clusters,jitter); | |
403 | Int_t nClusters = clusters->GetEntriesFast(); | |
404 | nClustersSDD += nClusters; | |
405 | vectModId[iMod]=-1; | |
406 | } | |
407 | for (Int_t s=0; s<2; s++){ | |
408 | Int_t indexHyb=iMod*2+s; | |
409 | for(Int_t iAnode=0; iAnode<GetSeg()->NpzHalf(); iAnode++){ | |
410 | if(ddlAnodeFired[indexHyb]->TestBitNumber(iAnode)==kFALSE) continue; | |
411 | for(Int_t iTimeBin=0; iTimeBin<GetSeg()->Npx(); iTimeBin++){ | |
412 | Int_t index=(iTimeBin+1)*fNZbins+(iAnode+1); | |
413 | fDDLBins[indexHyb][index].Reset(); | |
414 | } | |
415 | } | |
416 | } | |
417 | ddlAnodeFired[iMod*2]->ResetAllBits(); | |
418 | ddlAnodeFired[iMod*2+1]->ResetAllBits(); | |
419 | } | |
420 | }else{ | |
421 | // fill the current digit into the bins array | |
422 | if(iHybrid<0 || iHybrid>=kHybridsPerDDL){ | |
423 | AliWarning(Form("Invalid SDD hybrid number %d on module %d\n", iHybrid,iModule)); | |
424 | continue; | |
425 | } | |
426 | AliITSCalibrationSDD* cal = (AliITSCalibrationSDD*)GetResp(iModule); | |
427 | if(cal==0){ | |
428 | AliError(Form("Calibration object not present for SDD module %d\n",iModule)); | |
429 | continue; | |
430 | } | |
431 | Float_t charge=input->GetSignal(); | |
432 | Int_t chan=input->GetCoord1()+fNAnodes*iSide; | |
433 | Float_t gain=cal->GetChannelGain(chan)/fDetTypeRec->GetAverageGainSDD();; | |
434 | Float_t baseline = cal->GetBaseline(chan); | |
435 | if(charge>baseline) charge-=baseline; | |
436 | else charge=0; | |
437 | if(gain>0.){ // Bad channels have gain=0 | |
438 | charge/=gain; | |
439 | if(charge>=cal->GetThresholdAnode(chan)) { | |
440 | Int_t q=(Int_t)(charge+0.5); | |
441 | Int_t iz = input->GetCoord1(); | |
442 | Int_t itb = input->GetCoord2(); | |
443 | Int_t index = (itb+1) * fNZbins + (iz+1); | |
444 | if((itb < fNTimeBins) && (iz < fNAnodes)) { | |
445 | fDDLBins[iHybrid][index].SetQ(q); | |
446 | fDDLBins[iHybrid][index].SetMask(1); | |
447 | fDDLBins[iHybrid][index].SetIndex(index); | |
448 | fDDLBins[iHybrid][index].SetRawID(countRW); //RS register raw id | |
449 | ddlAnodeFired[iHybrid]->SetBitNumber(iz); | |
450 | }else{ | |
451 | AliWarning(Form("Invalid SDD cell: Anode=%d TimeBin=%d",iz,itb)); | |
452 | } | |
453 | } | |
454 | } | |
455 | } | |
456 | countRW++; //RS | |
457 | } | |
458 | for(Int_t iHyb=0;iHyb<kHybridsPerDDL;iHyb++){ | |
459 | delete ddlAnodeFired[iHyb]; | |
460 | } | |
461 | AliDebug(1,Form("found clusters in ITS SDD: %d", nClustersSDD)); | |
462 | } | |
463 | ||
464 | //______________________________________________________________________ | |
465 | Bool_t AliITSClusterFinderV2SDD::NoiseSuppress(Int_t k, Int_t sid, AliBin* bins, const AliITSCalibrationSDD* cal) const { | |
466 | // applies zero suppression using the measured noise of each anode | |
467 | // threshold values from ALICE-INT-1999-28 V10 | |
468 | // returns kTRUE if the digit should eb noise suppressed, kFALSE if it should be kept | |
469 | Float_t xfactL=2.2; | |
470 | Float_t xfactH=4.0; | |
471 | // | |
472 | ||
473 | Int_t iAn=(k%fNZbins)-1; | |
474 | if(iAn<0 || iAn>255) return kTRUE; | |
475 | if(sid==1) iAn+=256; | |
476 | Int_t nLow=0, nHigh=0; | |
477 | Float_t noise=cal->GetNoiseAfterElectronics(iAn); | |
478 | Float_t noisem1=noise; | |
479 | if(iAn>1) noisem1=cal->GetNoiseAfterElectronics(iAn-1); | |
480 | Float_t noisep1=noise; | |
481 | if(iAn<511) noisep1=cal->GetNoiseAfterElectronics(iAn+1); | |
482 | Float_t tL=noise*xfactL; | |
483 | Float_t tH=noise*xfactH; | |
484 | Float_t tLp1=noisep1*xfactL; | |
485 | Float_t tHp1=noisep1*xfactH; | |
486 | Float_t tLm1=noisem1*xfactL; | |
487 | Float_t tHm1=noisem1*xfactH; | |
488 | Int_t cC=bins[k].GetQ(); | |
489 | if(cC<=tL){ | |
490 | bins[k].SetQ(0); | |
491 | bins[k].SetMask(0xFFFFFFFE); | |
492 | return kTRUE;; | |
493 | } | |
494 | nLow++; // cC is greater than tL | |
495 | if(cC>tH) nHigh++; | |
496 | Int_t sS=bins[k-1].GetQ(); | |
497 | if(sS>tLm1) nLow++; | |
498 | if(sS>tHm1) nHigh++; | |
499 | Int_t nN=bins[k+1].GetQ(); | |
500 | if(nN>tLp1) nLow++; | |
501 | if(nN>tHp1) nHigh++; | |
502 | Int_t eE=bins[k-fNZbins].GetQ(); | |
503 | if(eE>tL) nLow++; | |
504 | if(eE>tH) nHigh++; | |
505 | Int_t wW=bins[k+fNZbins].GetQ(); | |
506 | if(wW>tL) nLow++; | |
507 | if(wW>tH) nHigh++; | |
508 | if(nLow<2 || nHigh<1) return kTRUE; | |
509 | else return kFALSE; | |
510 | } | |
511 | ||
512 | ||
513 |