1 /**************************************************************************
2 * Copyright(c) 2004, 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 **************************************************************************/
16 /** @file AliFMDGainDA.cxx
17 @author Hans Hjersing Dalsgaard <canute@nbi.dk>
18 @date Mon Mar 13 13:46:05 2008
19 @brief Derived class for the pulse gain detector algorithm.
21 //____________________________________________________________________
23 // This class contains the implementation of the gain detector
24 // algorithms (DA) for the FMD. The data is collected in histograms
25 // that are reset for each pulse length after the mean and standard
26 // deviation are put into a TGraphErrors object. After a certain
27 // number of pulses (usually 8) the graph is fitted to a straight
28 // line. The gain is then slope of this line as it combines the known
29 // pulse and the response of the detector.
31 #include "AliFMDGainDA.h"
32 // #include <iostream>
38 #include "TGraphErrors.h"
39 #include "AliFMDParameters.h"
40 #include "AliFMDAltroMapping.h"
44 //_____________________________________________________________________
45 ClassImp(AliFMDGainDA)
46 #if 0 // Do not delete - here to let Emacs indent properly
50 //_____________________________________________________________________
51 AliFMDGainDA::AliFMDGainDA()
55 fEventsPerChannel(10),
58 fNumberOfStripsPerChip(128),
59 fSummaryGains("GainsSummary","Summary of gains",51200,0,51200),
60 fCurrentSummaryStrip(1),
76 fCurrentPulse.Reset(0);
77 fCurrentChannel.Reset(0);
78 fOutputFile.open("gains.csv");
79 fGainArray.SetOwner();
82 //_____________________________________________________________________
83 AliFMDGainDA::AliFMDGainDA(const AliFMDGainDA & gainDA)
84 : AliFMDBaseDA(gainDA),
85 fGainArray(gainDA.fGainArray),
86 fHighPulse(gainDA.fHighPulse),
87 fEventsPerChannel(gainDA.fEventsPerChannel),
88 fCurrentPulse(gainDA.fCurrentPulse),
89 fCurrentChannel(gainDA.fCurrentChannel),
90 fNumberOfStripsPerChip(gainDA.fNumberOfStripsPerChip),
91 fSummaryGains(gainDA.fSummaryGains),
92 fCurrentSummaryStrip(gainDA.fCurrentSummaryStrip),
93 fGainFMD1i(gainDA.fGainFMD1i),
94 fGainFMD2i(gainDA.fGainFMD2i),
95 fGainFMD2o(gainDA.fGainFMD2o),
96 fGainFMD3i(gainDA.fGainFMD3i),
97 fGainFMD3o(gainDA.fGainFMD3o),
98 fChi2FMD1i(gainDA.fChi2FMD1i),
99 fChi2FMD2i(gainDA.fChi2FMD2i),
100 fChi2FMD2o(gainDA.fChi2FMD2o),
101 fChi2FMD3i(gainDA.fChi2FMD3i),
102 fChi2FMD3o(gainDA.fChi2FMD3o)
107 // gainDA Object to copy from
108 fCurrentPulse.Reset(0);
109 fCurrentChannel.Reset(0);
112 //_____________________________________________________________________
113 AliFMDGainDA::~AliFMDGainDA()
121 //_____________________________________________________________________
122 void AliFMDGainDA::Init()
128 Int_t nEventsRequired = 0;
130 for(Int_t idx = 0;idx<fEventsPerChannel.GetSize();idx++) {
132 if(fPulseSize.At(idx))
133 nEvents = (fPulseLength.At(idx)*fHighPulse) / fPulseSize.At(idx);
134 fEventsPerChannel.AddAt(nEvents,idx);
135 if(nEvents>nEventsRequired)
136 nEventsRequired = nEvents * fNumberOfStripsPerChip;
140 SetRequiredEvents(nEventsRequired);
143 TObjArray* ringArray;
144 TObjArray* sectorArray;
146 for(UShort_t det=1;det<=3;det++) {
147 detArray = new TObjArray();
148 detArray->SetOwner();
149 fGainArray.AddAtAndExpand(detArray,det);
150 for (UShort_t ir = 0; ir < 2; ir++) {
151 Char_t ring = (ir == 0 ? 'O' : 'I');
152 UShort_t nsec = (ir == 0 ? 40 : 20);
153 UShort_t nstr = (ir == 0 ? 2 : 4);
154 ringArray = new TObjArray();
155 ringArray->SetOwner();
156 detArray->AddAtAndExpand(ringArray,ir);
157 for(UShort_t sec =0; sec < nsec; sec++) {
158 sectorArray = new TObjArray();
159 sectorArray->SetOwner();
160 ringArray->AddAtAndExpand(sectorArray,sec);
161 for(UShort_t strip = 0; strip < nstr; strip++) {
162 TH1S* hChannel = new TH1S(Form("hFMD%d%c_%d_%d",det,ring,sec,strip),
163 Form("hFMD%d%c_%d_%d",det,ring,sec,strip),
165 hChannel->SetDirectory(0);
166 sectorArray->AddAtAndExpand(hChannel,strip);
173 //_____________________________________________________________________
174 void AliFMDGainDA::AddChannelContainer(TObjArray* sectorArray,
180 // Make a channel container
183 // sectorArray Sectors
184 // det Detector number
185 // ring Ring identifier
187 // strip Strip number
188 TGraphErrors* hChannel = new TGraphErrors();
189 hChannel->SetName(Form("FMD%d%c[%02d,%03d]", det, ring, sec, strip));
190 hChannel->SetTitle(Form("FMD%d%c[%02d,%03d] ADC vs DAC",
191 det, ring, sec, strip));
192 sectorArray->AddAtAndExpand(hChannel,strip);
195 //_____________________________________________________________________
196 void AliFMDGainDA::FillChannels(AliFMDDigit* digit)
198 // Fill data into histogram
201 // digit Digit to get the data from
203 UShort_t det = digit->Detector();
204 Char_t ring = digit->Ring();
205 UShort_t sec = digit->Sector();
206 UShort_t strip = digit->Strip();
208 //Strip is always seen as the first in a VA chip. All other strips are junk.
209 //Strips are counted from zero on even sectors and from 511 on odd sectors...
211 if((sec%2) && ((strip+1) % fNumberOfStripsPerChip)) return;
212 if(((sec+1)%2) && (strip % fNumberOfStripsPerChip)) return;
214 Int_t vaChip = strip / fNumberOfStripsPerChip;
215 TH1S* hChannel = GetChannelHistogram(det, ring, sec, vaChip);
216 hChannel->Fill(digit->Counts());
217 UpdatePulseAndADC(det,ring,sec,strip);
220 //_____________________________________________________________________
221 void AliFMDGainDA::MakeSummary(UShort_t det, Char_t ring)
223 //Create summary hists for FMD gains and chi2 of the fits
226 fGainFMD1i = MakeSummaryHistogram("gain", "Gains", det, ring);
227 fChi2FMD1i = MakeSummaryHistogram("chi2", "#Chi^{2}/NDF", det, ring);
232 fGainFMD2i = MakeSummaryHistogram("gain", "Gains", det, ring);
233 fChi2FMD2i = MakeSummaryHistogram("chi2", "#Chi^{2}/NDF", det, ring);
236 fGainFMD2o = MakeSummaryHistogram("gain", "Gains", det, ring);
237 fChi2FMD2o = MakeSummaryHistogram("chi2", "#Chi^{2}/NDF", det, ring);
244 fGainFMD3i = MakeSummaryHistogram("gain", "Gains", det, ring);
245 fChi2FMD3i = MakeSummaryHistogram("chi2", "#Chi^{2}/NDF", det, ring);
248 fGainFMD3o = MakeSummaryHistogram("gain", "Gains", det, ring);
249 fChi2FMD3o = MakeSummaryHistogram("chi2", "#Chi^{2}/NDF", det, ring);
256 //_____________________________________________________________________
257 void AliFMDGainDA::Analyse(UShort_t det,
262 // Analyse result of a single strip
265 // det Detector number
266 // ring Ring identifier
268 // strip Strip number
269 TGraphErrors* grChannel = GetChannel(det,ring,sec,strip);
270 if(!grChannel->GetN()) {
271 AliWarning(Form("No entries for FMD%d%c, sector %d, strip %d",
272 det, ring , sec, strip));
275 TF1 fitFunc("fitFunc","pol1",-10,280);
276 fitFunc.SetParameters(100,3);
277 grChannel->Fit("fitFunc","Q0+","",0,fHighPulse);
281 Float_t chi2ndf = -1;
282 if((fitFunc.GetParameter(1)) == (fitFunc.GetParameter(1))) {
283 gain = fitFunc.GetParameter(1);
284 error = fitFunc.GetParError(1);
286 chi2ndf = fitFunc.GetChisquare() / fitFunc.GetNDF();
289 fOutputFile << det << ','
297 //due to RCU trouble, first strips on VAs are excluded
298 // if(strip%128 != 0) {
300 fSummaryGains.SetBinContent(fCurrentSummaryStrip,fitFunc.GetParameter(1));
301 fSummaryGains.SetBinError(fCurrentSummaryStrip,fitFunc.GetParError(1));
303 fCurrentSummaryStrip++;
308 case 1: hGain = fGainFMD1i; hChi2 = fChi2FMD1i; break;
311 case 'I': hGain = fGainFMD2i; hChi2 = fChi2FMD2i; break;
312 case 'O': hGain = fGainFMD2o; hChi2 = fChi2FMD2o; break;
317 case 'I': hGain = fGainFMD3i; hChi2 = fChi2FMD3i; break;
318 case 'O': hGain = fGainFMD3o; hChi2 = fChi2FMD3o; break;
322 if (hGain && hChi2) {
323 Int_t bin = hGain->FindBin(sec, strip);
324 hGain->SetBinContent(bin, gain);
325 hGain->SetBinError(bin, error);
326 hChi2->SetBinContent(bin, chi2ndf);
330 if(fSaveHistograms) {
331 gDirectory->cd(GetSectorPath(det,ring, sec, kTRUE));
333 TH1F* summary = dynamic_cast<TH1F*>(gDirectory->Get("Summary"));
335 Int_t nStr = (ring == 'I' ? 512 : 256);
336 summary = new TH1F("Summary", Form("Summary of gains in FMD%d%c[%02d]",
339 summary->SetXTitle("Strip");
340 summary->SetYTitle("Gain [ADC/DAC]");
341 summary->SetDirectory(gDirectory);
343 summary->SetBinContent(strip+1, fitFunc.GetParameter(1));
344 summary->SetBinError(strip+1, fitFunc.GetParError(1));
346 gDirectory->cd(GetStripPath(det,ring,sec,strip, kTRUE));
347 grChannel->SetName(Form("FMD%d%c[%02d,%03d]",det,ring,sec,strip));
348 // grChannel->SetDirectory(gDirectory);
350 // grChannel->Write(Form("grFMD%d%c_%d_%d",det,ring,sec,strip));
354 //_____________________________________________________________________
355 void AliFMDGainDA::Terminate(TFile* diagFile)
363 fSummaryGains.Write();
367 //_____________________________________________________________________
368 void AliFMDGainDA::WriteHeaderToFile()
370 // Write header to the output file
374 AliFMDParameters* pars = AliFMDParameters::Instance();
375 fOutputFile.write(Form("# %s \n",pars->GetGainShuttleID()),9);
377 fOutputFile << "# This file created from run # " << fRunno
378 << " @ " << now.AsString() << std::endl;
379 fOutputFile.write("# Detector, "
389 //_____________________________________________________________________
390 TH1S* AliFMDGainDA::GetChannelHistogram(UShort_t det,
395 // Get the current histogram of a single strip
398 // det Detector number
399 // ring Ring identifier
401 // strip Strip number
408 TObjArray* detArray = static_cast<TObjArray*>(fGainArray.At(det));
409 TObjArray* ringArray = static_cast<TObjArray*>(detArray->At(lRing));
410 TObjArray* secArray = static_cast<TObjArray*>(ringArray->At(sec));
411 TH1S* hChannel = static_cast<TH1S*>(secArray->At(strip));
416 //_____________________________________________________________________
417 TGraphErrors* AliFMDGainDA::GetChannel(UShort_t det,
422 // Get the graph of a single strip
425 // det Detector number
426 // ring Ring identifier
428 // strip Strip number
429 UShort_t iring = (ring == 'O' ? 0 : 1);
430 TObjArray* detArray = static_cast<TObjArray*>(fDetectorArray.At(det));
431 TObjArray* ringArray = static_cast<TObjArray*>(detArray->At(iring));
432 TObjArray* secArray = static_cast<TObjArray*>(ringArray->At(sec));
433 TGraphErrors* hChannel = static_cast<TGraphErrors*>(secArray->At(strip));
438 //_____________________________________________________________________
439 void AliFMDGainDA::UpdatePulseAndADC(UShort_t det,
444 // Go to next pulse size
447 // det Detector number
448 // ring Ring identifier
450 // strip Strip number
452 AliFMDParameters* pars = AliFMDParameters::Instance();
453 // UInt_t ddl, board,chip,ch;
454 UShort_t board = pars->GetAltroMap()->Sector2Board(ring, sec);
455 // pars->Detector2Hardware(det,ring,sec,strip,ddl,board,chip,ch);
456 /// pars->GetAltroMap()->Strip2Channel(
457 Int_t halfring = GetHalfringIndex(det,ring,board/16);
459 if(GetCurrentEvent()> (fNumberOfStripsPerChip*fEventsPerChannel.At(halfring)))
462 if((sec%2) && ((strip+1) % fNumberOfStripsPerChip)) return;
464 if(((sec+1)%2) && (strip % fNumberOfStripsPerChip)) return;
466 if(((GetCurrentEvent()) % fPulseLength.At(halfring))
467 && GetCurrentEvent() > 0) return;
469 Int_t vaChip = strip/fNumberOfStripsPerChip;
470 TH1S* hChannel = GetChannelHistogram(det,ring,sec,vaChip);
472 if(!hChannel->GetEntries()) {
473 AliWarning(Form("No entries for FMD%d%c, sector %d, strip %d",
474 det, ring , sec, strip));
477 Double_t mean = hChannel->GetMean();
478 Double_t rms = hChannel->GetRMS();
479 Double_t pulse = (Double_t(fCurrentPulse.At(halfring))
480 * fPulseSize.At(halfring));
481 Int_t firstBin = hChannel->GetXaxis()->GetFirst();
482 Int_t lastBin = hChannel->GetXaxis()->GetLast();
483 hChannel->GetXaxis()->SetRangeUser(mean-4*rms,mean+4*rms);
485 mean = hChannel->GetMean();
486 rms = hChannel->GetRMS();
488 hChannel->GetXaxis()->SetRange(firstBin,lastBin);
490 Int_t channelNumber = (strip +
491 (GetCurrentEvent()-1)
492 / ((fPulseLength.At(halfring)*fHighPulse)
493 / fPulseSize.At(halfring)));
495 channelNumber = (strip -
496 (GetCurrentEvent()-1)
497 / ((fPulseLength.At(halfring)*fHighPulse)
498 / fPulseSize.At(halfring)));
500 TGraphErrors* channel = GetChannel(det,ring,sec,channelNumber);
502 channel->SetPoint(fCurrentPulse.At(halfring),pulse,mean);
503 channel->SetPointError(fCurrentPulse.At(halfring),0,rms);
505 if(fSaveHistograms) {
506 gDirectory->cd(GetStripPath(det,ring,sec,channelNumber));
507 hChannel->Write(Form("%s_pulse_%03d",hChannel->GetName(),(Int_t)pulse));
515 //_____________________________________________________________________
516 void AliFMDGainDA::ResetPulseAndUpdateChannel()
522 fCurrentPulse.Reset(0);
525 //_____________________________________________________________________
526 void AliFMDGainDA::FinishEvent()
532 for(UShort_t det=1; det<=3;det++) {
533 UShort_t firstring = (det == 1 ? 1 : 0);
534 for(UShort_t iring = firstring; iring <=1;iring++) {
535 Char_t ring = (iring == 1 ? 'I' : 'O');
536 for(UShort_t board =0 ; board <=1; board++) {
537 Int_t idx = GetHalfringIndex(det,ring,board);
539 if(!fPulseLength.At(idx) || !fEventsPerChannel.At(idx))
541 if(GetCurrentEvent()>0 &&
542 ((GetCurrentEvent() % fPulseLength.At(idx)) == 0))
543 fCurrentPulse.AddAt(fCurrentPulse.At(idx)+1,idx);
545 if(GetCurrentEvent()>0 &&
546 ((GetCurrentEvent()) % fEventsPerChannel.At(idx)) == 0)
547 fCurrentPulse.AddAt(0,idx);
552 //_____________________________________________________________________