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f631f26d 1/**************************************************************************
2 * Copyright(c) 2004, 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/** @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.
20*/
cf291b42 21//____________________________________________________________________
22//
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.
30//
f631f26d 31#include "AliFMDGainDA.h"
32#include "iostream"
33#include "fstream"
34#include "AliLog.h"
35#include "TF1.h"
36#include "TH1.h"
37#include "TMath.h"
38#include "TGraphErrors.h"
39#include "AliFMDParameters.h"
40
41//_____________________________________________________________________
42ClassImp(AliFMDGainDA)
cf291b42 43#if 0 // Do not delete - here to let Emacs indent properly
44;
45#endif
f631f26d 46
47//_____________________________________________________________________
cf291b42 48AliFMDGainDA::AliFMDGainDA()
49 : AliFMDBaseDA(),
50 fGainArray(),
cf291b42 51 fHighPulse(256),
22017a7e 52 fEventsPerChannel(10),
53 fCurrentPulse(10),
54 fCurrentChannel(10),
3bae5d02 55 fNumberOfStripsPerChip(128),
56 fSummaryGains("GainsSummary","Summary of gains",51200,0,51200),
f14ede67 57 fCurrentSummaryStrip(1)
f631f26d 58{
427e8f99 59 fCurrentPulse.Reset(0);
60 fCurrentChannel.Reset(0);
f631f26d 61 fOutputFile.open("gains.csv");
cf291b42 62 fGainArray.SetOwner();
f631f26d 63}
64
65//_____________________________________________________________________
cf291b42 66AliFMDGainDA::AliFMDGainDA(const AliFMDGainDA & gainDA)
67 : AliFMDBaseDA(gainDA),
68 fGainArray(gainDA.fGainArray),
cf291b42 69 fHighPulse(gainDA.fHighPulse),
cf291b42 70 fEventsPerChannel(gainDA.fEventsPerChannel),
71 fCurrentPulse(gainDA.fCurrentPulse),
72 fCurrentChannel(gainDA.fCurrentChannel),
3bae5d02 73 fNumberOfStripsPerChip(gainDA.fNumberOfStripsPerChip),
74 fSummaryGains(gainDA.fSummaryGains),
75 fCurrentSummaryStrip(gainDA.fCurrentSummaryStrip)
cf291b42 76{
427e8f99 77 fCurrentPulse.Reset(0);
78 fCurrentChannel.Reset(0);
f631f26d 79}
80
81//_____________________________________________________________________
cf291b42 82AliFMDGainDA::~AliFMDGainDA()
83{
f631f26d 84}
85
86//_____________________________________________________________________
cf291b42 87void AliFMDGainDA::Init()
88{
f631f26d 89
427e8f99 90
91 Int_t nEventsRequired = 0;
22017a7e 92
93 //for(UShort_t det=1; det<=3;det++) {
94 // UShort_t firstring = (det == 1 ? 1 : 0);
95 // for(UShort_t iring = firstring; iring <=1;iring++) {
96 // Char_t ring = (iring == 1 ? 'I' : 'O');
97 // for(UShort_t board =0 ; board <=1; board++) {
98 // Int_t idx = GetHalfringIndex(det,ring,board);
99 for(Int_t idx = 0;idx<fEventsPerChannel.GetSize();idx++)
427e8f99 100 {
22017a7e 101
102 Int_t nEvents = 0;
103 if(fPulseSize.At(idx))
104 nEvents = (fPulseLength.At(idx)*fHighPulse) / fPulseSize.At(idx);
105 fEventsPerChannel.AddAt(nEvents,idx);
427e8f99 106 if(nEvents>nEventsRequired) nEventsRequired = nEvents * fNumberOfStripsPerChip;
107
108 }
22017a7e 109 //}
110 // }
54b167db 111
cf291b42 112 //8 pulser values * 128 strips * 100 samples
427e8f99 113
114
115 SetRequiredEvents(nEventsRequired);
22017a7e 116
f631f26d 117 TObjArray* detArray;
118 TObjArray* ringArray;
119 TObjArray* sectorArray;
120
121 for(UShort_t det=1;det<=3;det++) {
122 detArray = new TObjArray();
123 detArray->SetOwner();
124 fGainArray.AddAtAndExpand(detArray,det);
125 for (UShort_t ir = 0; ir < 2; ir++) {
126 Char_t ring = (ir == 0 ? 'O' : 'I');
127 UShort_t nsec = (ir == 0 ? 40 : 20);
128 UShort_t nstr = (ir == 0 ? 2 : 4);
129 ringArray = new TObjArray();
130 ringArray->SetOwner();
131 detArray->AddAtAndExpand(ringArray,ir);
132 for(UShort_t sec =0; sec < nsec; sec++) {
133 sectorArray = new TObjArray();
134 sectorArray->SetOwner();
135 ringArray->AddAtAndExpand(sectorArray,sec);
136 for(UShort_t strip = 0; strip < nstr; strip++) {
cf291b42 137 TH1S* hChannel = new TH1S(Form("hFMD%d%c_%d_%d",det,ring,sec,strip),
138 Form("hFMD%d%c_%d_%d",det,ring,sec,strip),
139 1024,0,1023);
f631f26d 140 hChannel->SetDirectory(0);
141 sectorArray->AddAtAndExpand(hChannel,strip);
142 }
143 }
144 }
145 }
146}
147
148//_____________________________________________________________________
149void AliFMDGainDA::AddChannelContainer(TObjArray* sectorArray,
cf291b42 150 UShort_t det ,
151 Char_t ring,
f631f26d 152 UShort_t sec,
cf291b42 153 UShort_t strip)
154{
f631f26d 155 TGraphErrors* hChannel = new TGraphErrors();
cf291b42 156 hChannel->SetName(Form("FMD%d%c[%02d,%03d]", det, ring, sec, strip));
157 hChannel->SetTitle(Form("FMD%d%c[%02d,%03d] ADC vs DAC",
158 det, ring, sec, strip));
f631f26d 159 sectorArray->AddAtAndExpand(hChannel,strip);
160}
161
162//_____________________________________________________________________
163void AliFMDGainDA::FillChannels(AliFMDDigit* digit) {
164
165 UShort_t det = digit->Detector();
166 Char_t ring = digit->Ring();
167 UShort_t sec = digit->Sector();
168 UShort_t strip = digit->Strip();
169
22017a7e 170 //Strip is always seen as the first in a VA chip. All other strips are junk
cf291b42 171 if(strip % fNumberOfStripsPerChip) return;
172 Int_t vaChip = strip / fNumberOfStripsPerChip;
173 TH1S* hChannel = GetChannelHistogram(det, ring, sec, vaChip);
22017a7e 174
f631f26d 175 hChannel->Fill(digit->Counts());
176 UpdatePulseAndADC(det,ring,sec,strip);
177}
178
179//_____________________________________________________________________
180void AliFMDGainDA::Analyse(UShort_t det,
e9c06036 181 Char_t ring,
f631f26d 182 UShort_t sec,
183 UShort_t strip) {
184 TGraphErrors* grChannel = GetChannel(det,ring,sec,strip);
185 if(!grChannel->GetN()) {
cf291b42 186 // AliWarning(Form("No entries for FMD%d%c, sector %d, strip %d",
187 // det, ring , sec, strip));
f631f26d 188 return;
189 }
9c958f2b 190 TF1 fitFunc("fitFunc","pol1",-10,280);
191 fitFunc.SetParameters(100,3);
e9c06036 192 grChannel->Fit("fitFunc","Q0+","",0,fHighPulse);
f7f0b643 193
f631f26d 194 Float_t chi2ndf = 0;
9c958f2b 195 if(fitFunc.GetNDF())
196 chi2ndf = fitFunc.GetChisquare() / fitFunc.GetNDF();
f7f0b643 197
198 fOutputFile << det << ','
199 << ring << ','
200 << sec << ','
201 << strip << ','
9c958f2b 202 << fitFunc.GetParameter(1) << ','
203 << fitFunc.GetParError(1) << ','
f631f26d 204 << chi2ndf <<"\n";
205
22017a7e 206 //due to RCU trouble, first strips on VAs are excluded
207 if(strip%128 != 0) {
208
209 fSummaryGains.SetBinContent(fCurrentSummaryStrip,fitFunc.GetParameter(1));
210 fSummaryGains.SetBinError(fCurrentSummaryStrip,fitFunc.GetParError(1));
211
212 fCurrentSummaryStrip++;
213 }
f631f26d 214 if(fSaveHistograms) {
e9c06036 215 gDirectory->cd(GetSectorPath(det,ring, sec, kTRUE));
216
217 TH1F* summary = dynamic_cast<TH1F*>(gDirectory->Get("Summary"));
218 if (!summary) {
219 Int_t nStr = (ring == 'I' ? 512 : 256);
220 summary = new TH1F("Summary", Form("Summary of gains in FMD%d%c[%02d]",
221 det, ring, sec),
222 nStr, -.5, nStr-.5);
223 summary->SetXTitle("Strip");
224 summary->SetYTitle("Gain [ADC/DAC]");
225 summary->SetDirectory(gDirectory);
226 }
227 summary->SetBinContent(strip+1, fitFunc.GetParameter(1));
228 summary->SetBinError(strip+1, fitFunc.GetParError(1));
229
230 gDirectory->cd(GetStripPath(det,ring,sec,strip, kTRUE));
231 grChannel->SetName(Form("FMD%d%c[%02d,%03d]",det,ring,sec,strip));
232 // grChannel->SetDirectory(gDirectory);
233 grChannel->Write();
234 // grChannel->Write(Form("grFMD%d%c_%d_%d",det,ring,sec,strip));
235 }
f631f26d 236}
237
238//_____________________________________________________________________
3bae5d02 239void AliFMDGainDA::Terminate(TFile* diagFile)
240{
241 diagFile->cd();
242 fSummaryGains.Write();
243}
244
245//_____________________________________________________________________
e9c06036 246void AliFMDGainDA::WriteHeaderToFile()
247{
9c958f2b 248 AliFMDParameters* pars = AliFMDParameters::Instance();
249 fOutputFile.write(Form("# %s \n",pars->GetGainShuttleID()),9);
f7f0b643 250 fOutputFile.write("# Detector, "
251 "Ring, "
252 "Sector, "
e9c06036 253 "Strip, "
254 "Gain, "
255 "Error, "
f7f0b643 256 "Chi2/NDF \n",56);
f631f26d 257
258}
259
260//_____________________________________________________________________
261TH1S* AliFMDGainDA::GetChannelHistogram(UShort_t det,
e9c06036 262 Char_t ring,
f631f26d 263 UShort_t sec,
e9c06036 264 UShort_t strip)
265{
f631f26d 266
267 UShort_t Ring = 1;
268 if(ring == 'O')
269 Ring = 0;
270
271
272 TObjArray* detArray = static_cast<TObjArray*>(fGainArray.At(det));
273 TObjArray* ringArray = static_cast<TObjArray*>(detArray->At(Ring));
274 TObjArray* secArray = static_cast<TObjArray*>(ringArray->At(sec));
275 TH1S* hChannel = static_cast<TH1S*>(secArray->At(strip));
276
277 return hChannel;
278}
279
280//_____________________________________________________________________
cf291b42 281TGraphErrors* AliFMDGainDA::GetChannel(UShort_t det,
e9c06036 282 Char_t ring,
cf291b42 283 UShort_t sec,
e9c06036 284 UShort_t strip)
285{
cf291b42 286 UShort_t iring = (ring == 'O' ? 0 : 1);
287 TObjArray* detArray = static_cast<TObjArray*>(fDetectorArray.At(det));
288 TObjArray* ringArray = static_cast<TObjArray*>(detArray->At(iring));
289 TObjArray* secArray = static_cast<TObjArray*>(ringArray->At(sec));
290 TGraphErrors* hChannel = static_cast<TGraphErrors*>(secArray->At(strip));
f631f26d 291
292 return hChannel;
293}
294
295//_____________________________________________________________________
cf291b42 296void AliFMDGainDA::UpdatePulseAndADC(UShort_t det,
297 Char_t ring,
298 UShort_t sec,
299 UShort_t strip)
300{
f7f0b643 301
427e8f99 302 AliFMDParameters* pars = AliFMDParameters::Instance();
303 UInt_t ddl, board,chip,ch;
304 pars->Detector2Hardware(det,ring,sec,strip,ddl,board,chip,ch);
22017a7e 305 Int_t halfring = GetHalfringIndex(det,ring,board/16);
306
f7f0b643 307 if(GetCurrentEvent()> (fNumberOfStripsPerChip*fEventsPerChannel.At(halfring)))
aea2699c 308 return;
cf291b42 309 if(strip % fNumberOfStripsPerChip) return;
427e8f99 310 if(((GetCurrentEvent()) % fPulseLength.At(halfring)) && GetCurrentEvent() > 0) return;
311
cf291b42 312 Int_t vaChip = strip/fNumberOfStripsPerChip;
313 TH1S* hChannel = GetChannelHistogram(det,ring,sec,vaChip);
f631f26d 314
315 if(!hChannel->GetEntries()) {
cf291b42 316 AliWarning(Form("No entries for FMD%d%c, sector %d, strip %d",
317 det, ring , sec, strip));
f631f26d 318 return;
319 }
320 Double_t mean = hChannel->GetMean();
321 Double_t rms = hChannel->GetRMS();
427e8f99 322 Double_t pulse = Double_t(fCurrentPulse.At(halfring)) * fPulseSize.At(halfring);
cf291b42 323 Int_t firstBin = hChannel->GetXaxis()->GetFirst();
324 Int_t lastBin = hChannel->GetXaxis()->GetLast();
9c958f2b 325 hChannel->GetXaxis()->SetRangeUser(mean-4*rms,mean+4*rms);
f631f26d 326
cf291b42 327 mean = hChannel->GetMean();
328 rms = hChannel->GetRMS();
efd39294 329
330 hChannel->GetXaxis()->SetRange(firstBin,lastBin);
331
427e8f99 332 Int_t channelNumber = strip + (GetCurrentEvent()-1)/((fPulseLength.At(halfring)*fHighPulse)/fPulseSize.At(halfring));
f631f26d 333
334 TGraphErrors* channel = GetChannel(det,ring,sec,channelNumber);
335
427e8f99 336 channel->SetPoint(fCurrentPulse.At(halfring),pulse,mean);
337 channel->SetPointError(fCurrentPulse.At(halfring),0,rms);
f631f26d 338
339 if(fSaveHistograms) {
f7f0b643 340 gDirectory->cd(GetStripPath(det,ring,sec,channelNumber));
341 hChannel->Write(Form("%s_pulse_%03d",hChannel->GetName(),(Int_t)pulse));
342
f631f26d 343 }
22017a7e 344
f631f26d 345 hChannel->Reset();
346
347}
348
349//_____________________________________________________________________
cf291b42 350void AliFMDGainDA::ResetPulseAndUpdateChannel()
351{
427e8f99 352 fCurrentPulse.Reset(0);
f631f26d 353}
354
355//_____________________________________________________________________
cf291b42 356void AliFMDGainDA::FinishEvent()
357{
22017a7e 358 for(UShort_t det=1; det<=3;det++) {
359 UShort_t firstring = (det == 1 ? 1 : 0);
360 for(UShort_t iring = firstring; iring <=1;iring++) {
361 Char_t ring = (iring == 1 ? 'I' : 'O');
362 for(UShort_t board =0 ; board <=1; board++) {
363 Int_t idx = GetHalfringIndex(det,ring,board);
364
365 if( !fPulseLength.At(idx) || !fEventsPerChannel.At(idx))
366 continue;
367 if(GetCurrentEvent()>0 && ((GetCurrentEvent() % fPulseLength.At(idx)) == 0))
368 fCurrentPulse.AddAt(fCurrentPulse.At(idx)+1,idx);
369
370 if(GetCurrentEvent()>0 && ((GetCurrentEvent()) % fEventsPerChannel.At(idx)) == 0)
371 fCurrentPulse.AddAt(0,idx);
372 }
373 }
427e8f99 374 }
f631f26d 375}
376//_____________________________________________________________________
377//
378//EOF
379//