1 /**************************************************************************
2 * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
4 * Author: The ALICE Off-line Project. *
5 * Contributors are mentioned in the code where appropriate. *
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 **************************************************************************/
18 ///////////////////////////////////////////////////////////////////////////////
19 // PHOS Preprocessor class. It runs by Shuttle at the end of the run,
20 // calculates calibration coefficients and dead/bad channels
21 // to be posted in OCDB
23 // Author: Boris Polichtchouk, 4 October 2006
24 ///////////////////////////////////////////////////////////////////////////////
26 #include "AliPHOSPreprocessor.h"
28 #include "AliCDBMetaData.h"
29 #include "AliCDBEntry.h"
30 #include "AliPHOSEmcCalibData.h"
39 #include "TObjString.h"
40 #include "TObjArray.h"
45 #include "AliPHOSEmcBadChannelsMap.h"
47 ClassImp(AliPHOSPreprocessor)
49 Double_t rgaus(Double_t *x, Double_t *par)
51 Double_t gaus = par[0] * TMath::Exp( -(x[0]-par[1])*(x[0]-par[1]) /
56 //_______________________________________________________________________________________
57 AliPHOSPreprocessor::AliPHOSPreprocessor() :
58 AliPreprocessor("PHS",0)
63 //_______________________________________________________________________________________
64 AliPHOSPreprocessor::AliPHOSPreprocessor(AliShuttleInterface* shuttle):
65 AliPreprocessor("PHS",shuttle)
69 AddRunType("PHYSICS");
70 AddRunType("STANDALONE");
73 //_______________________________________________________________________________________
74 UInt_t AliPHOSPreprocessor::Process(TMap* /*valueSet*/)
76 // process data retrieved by the Shuttle
78 TString runType = GetRunType();
79 Log(Form("Run type: %s",runType.Data()));
81 if(runType=="STANDALONE") {
82 Bool_t ledOK = ProcessLEDRun();
88 if(runType=="PHYSICS") {
90 Bool_t badmap_OK = FindBadChannelsEmc();
91 if(!badmap_OK) Log(Form("WARNING!! FindBadChannels() completed with BAD status!"));
93 Bool_t calibEmc_OK = CalibrateEmc();
95 if(calibEmc_OK && badmap_OK) return 0;
100 Log(Form("Unknown run type %s. Do nothing and return OK.",runType.Data()));
106 Bool_t AliPHOSPreprocessor::ProcessLEDRun()
108 //Process LED run, fill bad channels map.
110 AliPHOSEmcBadChannelsMap badMap;
112 TList* list = GetFileSources(kDAQ, "LED");
114 Log("Sources list for LED run not found, exit.");
123 while ((source = dynamic_cast<TObjString *> (iter.Next()))) {
125 AliInfo(Form("found source %s", source->String().Data()));
127 TString fileName = GetFile(kDAQ, "LED", source->GetName());
128 AliInfo(Form("Got filename: %s",fileName.Data()));
133 Log(Form("File %s is not opened, something goes wrong!",fileName.Data()));
137 const Int_t nMod=5; // 1:5 modules
138 const Int_t nCol=56; //1:56 columns in each module
139 const Int_t nRow=64; //1:64 rows in each module
141 // Check for dead channels
142 Log(Form("Begin check for dead channels."));
144 for(Int_t mod=0; mod<nMod; mod++) {
145 for(Int_t col=0; col<nCol; col++) {
146 for(Int_t row=0; row<nRow; row++) {
147 sprintf(hnam,"mod%dcol%drow%d",mod,col,row);
148 histo = (TH1F*)f.Get(hnam);
150 if (histo->GetMean()<1) {
151 Log(Form("Channel: [%d,%d,%d] seems dead, <E>=%.1f.",mod,col,row,histo->GetMean()));
152 badMap.SetBadChannel(mod,col,row);
160 //Store bad channels map
161 AliCDBMetaData badMapMetaData;
163 //Bad channels data valid from current run fRun until updated (validityInfinite=kTRUE)
164 Bool_t result = Store("Calib", "EmcBadChannels", &badMap, &badMapMetaData, fRun, kTRUE);
169 Float_t AliPHOSPreprocessor::HG2LG(Int_t mod, Int_t X, Int_t Z, TFile* f)
171 //Calculates High gain to Low gain ratio
172 //for crystal at the position (X,Z) in the PHOS module mod.
175 sprintf(hname,"%d_%d_%d",mod,X,Z);
177 TH1F* h1 = (TH1F*)f->Get(hname);
180 if(!h1->GetEntries()) return 16.;
181 if(h1->GetMaximum()<10.) return 16.;
183 Double_t max = h1->GetBinCenter(h1->GetMaximumBin()); // peak
184 Double_t xmin = max - (h1->GetRMS()/3);
185 Double_t xmax = max + (h1->GetRMS()/2);
186 // Double_t xmin = max - (h1->GetRMS());
187 // Double_t xmax = max + (h1->GetRMS());
189 TF1* gaus1 = new TF1("gaus1",rgaus,xmin,xmax,3);
190 gaus1->SetParNames("Constant","Mean","Sigma");
191 gaus1->SetParameter("Constant",h1->GetMaximum());
192 gaus1->SetParameter("Mean",max);
193 gaus1->SetParameter("Sigma",1.);
194 gaus1->SetLineColor(kBlue);
195 h1->Fit(gaus1,"LERQ+");
197 AliInfo(Form("%s: %d entries, mean=%.3f, peak=%.3f, rms= %.3f. HG/LG = %.3f\n",
198 h1->GetTitle(),h1->GetEntries(),h1->GetMean(),max,h1->GetRMS(),
199 gaus1->GetParameter("Mean")));
201 return gaus1->GetParameter("Mean");
205 Bool_t AliPHOSPreprocessor::FindBadChannelsEmc()
207 //Creates the bad channels map for PHOS EMC.
209 // The file fileName contains histograms which have been produced by DA2 detector algorithm.
210 // It is a responsibility of the SHUTTLE framework to form the fileName.
212 AliPHOSEmcBadChannelsMap badMap;
214 TList* list = GetFileSources(kDAQ, "BAD_CHANNELS");
217 Log("Sources list for BAD_CHANNELS not found, exit.");
221 if(!list->GetEntries()) {
222 Log(Form("Got empty sources list. It seems DA2 did not produce any files!"));
231 const Float_t fQualityCut = 1.;
232 Int_t nGoods[5] = {0,0,0,0,0};
234 while ((source = dynamic_cast<TObjString *> (iter.Next()))) {
236 AliInfo(Form("found source %s", source->String().Data()));
238 TString fileName = GetFile(kDAQ, "BAD_CHANNELS", source->GetName());
239 AliInfo(Form("Got filename: %s",fileName.Data()));
244 Log(Form("File %s is not opened, something goes wrong!",fileName.Data()));
248 Log(Form("Begin check for bad channels."));
250 for(Int_t mod=0; mod<5; mod++) {
251 for(Int_t iX=0; iX<64; iX++) {
252 for(Int_t iZ=0; iZ<56; iZ++) {
254 sprintf(hnam,"%d_%d_%d_%d",mod,iX,iZ,1); // high gain
255 h1 = (TH1F*)f.Get(hnam);
258 Double_t mean = h1->GetMean();
261 Log(Form("iX=%d iZ=%d gain=%d mean=%.3f\n",iX,iZ,1,mean));
263 if( mean>0 && mean<fQualityCut ) {
267 badMap.SetBadChannel(mod+1,iZ+1,iX+1); //module, col,row
274 Log(Form("Module %d: %d good channels.",mod,nGoods[mod]));
278 } // end of loop over sources
280 // Store the bad channels map.
283 md.SetResponsible("Boris Polishchuk");
285 // Data valid from current run fRun until being updated (validityInfinite=kTRUE)
286 Bool_t result = Store("Calib", "EmcBadChannels", &badMap, &md, fRun, kTRUE);
291 Bool_t AliPHOSPreprocessor::CalibrateEmc()
293 // I. Calculates the set of calibration coefficients to equalyze the mean energies deposited at high gain.
294 // II. Extracts High_Gain/Low_Gain ratio for each channel.
296 // The file fileName contains histograms which have been produced by DA1 detector algorithm.
297 // It is a responsibility of the SHUTTLE framework to form the fileName.
299 gRandom->SetSeed(0); //the seed is set to the current machine clock!
300 AliPHOSEmcCalibData calibData;
302 TList* list = GetFileSources(kDAQ, "AMPLITUDES");
305 Log("Sources list not found, exit.");
309 if(!list->GetEntries()) {
310 Log(Form("Got empty sources list. It seems DA1 did not produce any files!"));
314 // Retrieve Bad Channels Map (BCM)
316 const AliPHOSEmcBadChannelsMap* badMap=0;
317 AliCDBEntry* entryBCM = GetFromOCDB("Calib", "EmcBadChannels");
320 Log(Form("WARNING!! Cannot find any AliCDBEntry for [Calib, EmcBadChannels]!"));
322 badMap = (AliPHOSEmcBadChannelsMap*)entryBCM->GetObject();
325 Log(Form("WARNING!! No Bad Channels Map in AliCDBEntry. All cells considered _GOOD_!"));
330 while ((source = dynamic_cast<TObjString *> (iter.Next()))) {
331 AliInfo(Form("found source %s", source->String().Data()));
333 TString fileName = GetFile(kDAQ, "AMPLITUDES", source->GetName());
334 AliInfo(Form("Got filename: %s",fileName.Data()));
339 Log(Form("File %s is not opened, something goes wrong!",fileName.Data()));
343 const Int_t nMod=5; // 1:5 modules
344 const Int_t nCol=56; //1:56 columns in each module
345 const Int_t nRow=64; //1:64 rows in each module
352 //Get the reference histogram
353 //(author: Gustavo Conesa Balbastre)
355 TList * keylist = f.GetListOfKeys();
356 Int_t nkeys = f.GetNkeys();
363 //Check if the file contains any histogram
366 Log(Form("Not enough histograms (%d) for calibration.",nkeys));
371 ikey = gRandom->Integer(nkeys);
372 key = (TKey*)keylist->At(ikey);
373 TObject* obj = f.Get(key->GetName());
374 TString cname(obj->ClassName());
375 if(cname == "TH2F") {
377 TString htitl = h2->GetTitle();
378 if(htitl.Contains("and gain 1")) {
379 hRef = h2->ProjectionX();
380 hRef->GetXaxis()->SetRange(10,1000); // to cut off saturation peak and noise
381 // Check if the reference histogram has too little statistics
382 if(hRef->GetMean() && hRef->GetEntries()>2) ok=kTRUE;
384 const TString delim = "_";
385 TString str = hRef->GetName();
386 TObjArray* tks = str.Tokenize(delim);
387 const Int_t md = ((TObjString*)tks->At(0))->GetString().Atoi();
388 const Int_t X = ((TObjString*)tks->At(1))->GetString().Atoi();
389 const Int_t Z = ((TObjString*)tks->At(2))->GetString().Atoi();
392 if(badMap->IsBadChannel(md+1,Z+1,X+1)) {
393 AliInfo(Form("Cell mod=%d col=%d row=%d is bad. Histogram %s rejected.",
394 md+1,Z+1,X+1,hRef->GetName()));
404 if(!ok && counter > nkeys){
405 Log("No histogram with enough statistics for reference. Exit.");
410 Log(Form("reference histogram %s, %.1f entries, mean=%.3f, rms=%.3f.",
411 hRef->GetName(),hRef->GetEntries(),
412 hRef->GetMean(),hRef->GetRMS()));
414 Double_t refMean=hRef->GetMean();
416 // Calculates relative calibration coefficients for all non-zero channels
418 for(Int_t mod=0; mod<nMod; mod++) {
419 for(Int_t col=0; col<nCol; col++) {
420 for(Int_t row=0; row<nRow; row++) {
422 //High Gain to Low Gain ratio
423 Float_t ratio = HG2LG(mod,row,col,&f);
424 calibData.SetHighLowRatioEmc(mod+1,col+1,row+1,ratio);
426 sprintf(hnam,"%d_%d_%d_1",mod,row,col); // high gain!
427 h2 = (TH2F*)f.Get(hnam);
429 //TODO: dead channels exclusion!
431 h1 = h2->ProjectionX();
432 h1->GetXaxis()->SetRange(10,1000); //to cut off saturation peak and noise
433 coeff = h1->GetMean()/refMean;
435 calibData.SetADCchannelEmc(mod+1,col+1,row+1,1./coeff);
437 calibData.SetADCchannelEmc(mod+1,col+1,row+1,1.);
438 AliInfo(Form("mod %d col %d row %d coeff %f\n",mod,col,row,coeff));
441 calibData.SetADCchannelEmc(mod+1,col+1,row+1,1.);
449 //Store EMC calibration data
451 AliCDBMetaData emcMetaData;
452 Bool_t result = Store("Calib", "EmcGainPedestals", &calibData, &emcMetaData, 0, kTRUE); // valid from 0 to infinity);