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eb7e0771 1/**************************************************************************
2 * Copyright(c) 2007-08, 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
17///////////////////////////////////////////////////////////////////////////////
18// //
19// Class for Evaluation and Validation of the ALTRO Tail Cancelation Filter //
20// (TCF) parameters out of TPC Raw data //
21// //
22// Author: Stefan Rossegger //
23// //
24///////////////////////////////////////////////////////////////////////////////
25
26#include "AliTPCCalibTCF.h"
27
28#include <TObject.h>
29#include <TCanvas.h>
30#include <TFile.h>
31#include <TKey.h>
32#include <TStyle.h>
33#include <TMinuit.h>
34#include <TH1F.h>
35
36#include <TMath.h>
37#include <TNtuple.h>
38#include <TEntryList.h>
39
40#include "AliRawReaderRoot.h"
41#include "AliTPCRawStream.h"
42#include "AliTPCROC.h"
43
44#include "AliTPCAltroEmulator.h"
45
46ClassImp(AliTPCCalibTCF)
47
48AliTPCCalibTCF::AliTPCCalibTCF() :
49 TNamed(),
50 fGateWidth(100),
51 fSample(900),
52 fPulseLength(500),
53 fLowPulseLim(30),
54 fUpPulseLim(1000),
55 fRMSLim(4.)
56{
57 //
58 // AliTPCCalibTCF standard constructor
59 //
60}
61
62//_____________________________________________________________________________
63AliTPCCalibTCF::AliTPCCalibTCF(Int_t gateWidth, Int_t sample, Int_t pulseLength, Int_t lowPulseLim, Int_t upPulseLim, Double_t rmsLim) :
64 TNamed(),
65 fGateWidth(gateWidth),
66 fSample(sample),
67 fPulseLength(pulseLength),
68 fLowPulseLim(lowPulseLim),
69 fUpPulseLim(upPulseLim),
70 fRMSLim(rmsLim)
71{
72 //
73 // AliTPCCalibTCF constructor with specific (non-standard) thresholds
74 //
75}
76
77//_____________________________________________________________________________
78AliTPCCalibTCF::AliTPCCalibTCF(const AliTPCCalibTCF &tcf) :
79 TNamed(tcf),
80 fGateWidth(tcf.fGateWidth),
81 fSample(tcf.fSample),
82 fPulseLength(tcf.fPulseLength),
83 fLowPulseLim(tcf.fLowPulseLim),
84 fUpPulseLim(tcf.fUpPulseLim),
85 fRMSLim(tcf.fRMSLim)
86{
87 //
88 // AliTPCCalibTCF copy constructor
89 //
90}
91
92
93//_____________________________________________________________________________
94AliTPCCalibTCF& AliTPCCalibTCF::operator = (const AliTPCCalibTCF &source)
95{
96 //
97 // AliTPCCalibTCF assignment operator
98 //
99
100 if (&source == this) return *this;
101 new (this) AliTPCCalibTCF(source);
102
103 return *this;
104
105}
106
107//_____________________________________________________________________________
108AliTPCCalibTCF::~AliTPCCalibTCF()
109{
110 //
111 // AliTPCCalibTCF destructor
112 //
113}
114
115//_____________________________________________________________________________
116void AliTPCCalibTCF::ProcessRawFile(const char *nameRawFile, const char *nameFileOut) {
117 //
118 // Loops over all events within one RawData file and collects proper pulses
119 // (according to given tresholds) per pad
120 // Histograms per pad are stored in 'nameFileOut'
121 //
122
123 AliRawReader *rawReader = new AliRawReaderRoot(nameRawFile);
124 rawReader->Reset();
125
126 while ( rawReader->NextEvent() ){ // loop
127 printf("Reading next event ...");
128 AliTPCRawStream rawStream(rawReader);
129 rawReader->Select("TPC");
130 ProcessRawEvent(&rawStream, nameFileOut);
131 }
132
133 rawReader->~AliRawReader();
134
135}
136
137
138//_____________________________________________________________________________
139void AliTPCCalibTCF::ProcessRawEvent(AliTPCRawStream *rawStream, const char *nameFileOut) {
140 //
141 // Extracts proper pulses (according the given tresholds) within one event
142 // and accumulates them into one histogram per pad. All histograms are
143 // saved in the file 'nameFileOut'.
144 // The first bins of the histograms contain the following information:
145 // bin 1: Number of accumulated pulses
146 // bin 2;3;4: Sector; Row; Pad;
147 //
148
149 Int_t sector = rawStream->GetSector();
150 Int_t row = rawStream->GetRow();
151 Int_t prevTime = 999999;
152 Int_t prevPad = 999999;
153
154 TFile fileOut(nameFileOut,"UPDATE");
155 fileOut.cd();
156
157 TH1I *tempHis = new TH1I("tempHis","tempHis",fSample+fGateWidth,fGateWidth,fSample+fGateWidth);
158 TH1I *tempRMSHis = new TH1I("tempRMSHis","tempRMSHis",2000,0,2000);
159
160 rawStream->SetOldRCUFormat(1);
161
162 while (rawStream->Next()) {
163
164 // in case of a new row, get sector and row number
165 if (rawStream->IsNewRow()){
166 sector = rawStream->GetSector();
167 row = rawStream->GetRow();
168 }
169
170 Int_t pad = rawStream->GetPad();
171 Int_t time = rawStream->GetTime();
172 Int_t signal = rawStream->GetSignal();
173
174 if (!rawStream->IsNewPad()) { // Reading signal from one Pad
175 if (time>prevTime) {
176 printf("Wrong time: %d %d\n",rawStream->GetTime(),prevTime);
177 rawStream->Dump();
178 } else {
179 // still the same pad, save signal to temporary histogram
180 if (time<=fSample+fGateWidth && time>fGateWidth) {
181 tempHis->SetBinContent(time,signal);
182 }
183 }
184 } else {
185 // complete pulse found and stored into tempHis, now calculation
186 // of it's properties and comparison to given thresholds
187
188 Int_t max = (Int_t)tempHis->GetMaximum(FLT_MAX);
189 Int_t maxpos = tempHis->GetMaximumBin();
190
191 Int_t first = (Int_t)TMath::Max(maxpos-10, 0);
192 Int_t last = TMath::Min((Int_t)maxpos+fPulseLength-10, fSample);
193
194 // simple baseline substraction ? better one needed ? (pedestalsubstr.?)
195 // and RMS calculation with timebins before the pulse and at the end of
196 // the signal
197 for (Int_t ipos = 0; ipos<6; ipos++) {
198 // before the pulse
199 tempRMSHis->Fill(tempHis->GetBinContent(first+ipos));
200 // at the end to get rid of pulses with serious baseline fluctuations
201 tempRMSHis->Fill(tempHis->GetBinContent(last-ipos));
202 }
203 Double_t baseline = tempRMSHis->GetMean();
204 Double_t rms = tempRMSHis->GetRMS();
205 tempRMSHis->Reset();
206
207 Double_t lowLim = fLowPulseLim+baseline;
208 Double_t upLim = fUpPulseLim+baseline;
209
210 // Decision if found pulse is a proper one according to given tresholds
211 if (max>lowLim && max<upLim && !((last-first)<fPulseLength) && rms<fRMSLim){
212 char hname[100];
213 sprintf(hname,"sec%drow%dpad%d",sector,row,prevPad);
214
215 TH1F *his = (TH1F*)fileOut.Get(hname);
216
217 if (!his ) { // new entry (pulse in new pad found)
218
219 his = new TH1F(hname,hname, fPulseLength+4, 0, fPulseLength+4);
220 his->SetBinContent(1,1); // pulse counter (1st pulse)
221 his->SetBinContent(2,sector); // sector
222 his->SetBinContent(3,row); // row
223 his->SetBinContent(4,prevPad); // pad
224
225 for (Int_t ipos=0; ipos<last-first; ipos++){
226 Int_t signal = (Int_t)(tempHis->GetBinContent(ipos+first)-baseline);
227 his->SetBinContent(ipos+5,signal);
228 }
229 his->Write(hname);
230 printf("new %s: Signal %d at bin %d \n", hname, max-(Int_t)baseline, maxpos+fGateWidth);
231
232 } else { // adding pulse to existing histogram (pad already found)
233
234 his->AddBinContent(1,1); // pulse counter for each pad
235 for (Int_t ipos=0; ipos<last-first; ipos++){
236 Int_t signal= (Int_t)(tempHis->GetBinContent(ipos+first)-baseline);
237 his->AddBinContent(ipos+5,signal);
238 }
239 printf("adding ... %s: Signal %d at bin %d \n", hname, max-(Int_t)baseline, maxpos+fGateWidth);
240 his->Write(hname,kOverwrite);
241 }
242 }
243 tempHis->Reset();
244 }
245 prevTime = time;
246 prevPad = pad;
247 }
248
249 tempHis->~TH1I();
250 tempRMSHis->~TH1I();
251 printf("Finished to read event ... \n");
252 fileOut.Close();
253}
254
255//____________________________________________________________________________
256void AliTPCCalibTCF::MergeHistoPerSector(const char *nameFileIn) {
257 //
258 // Merges all histograms within one sector, calculates the TCF parameters
259 // of the 'histogram-per-sector' and stores (histo and parameters) into
260 // seperated files ...
261 //
262 // note: first 4 timebins of a histogram hold specific informations
263 // about number of collected pulses, sector, row and pad
264 //
265 // 'nameFileIn': root file produced with Process function which holds
266 // one histogram per pad (sum of signals of proper pulses)
267 // 'Sec+nameFileIn': root file with one histogram per sector
268 // (information of row and pad are set to -1)
269 //
270
271 TFile fileIn(nameFileIn,"READ");
272 TH1F *hisPad = 0;
273 TKey *key = 0;
274 TIter next( fileIn.GetListOfKeys() );
275
276 char nameFileOut[100];
277 sprintf(nameFileOut,"Sec-%s",nameFileIn);
278
279 TFile fileOut(nameFileOut,"RECREATE");
280 fileOut.cd();
281
282 Int_t nHist = fileIn.GetNkeys();
283 Int_t iHist = 0; // histogram counter for merge-status print
284
285 while ( (key=(TKey*)next()) ) {
286
287 iHist++;
288
289 hisPad = (TH1F*)fileIn.Get(key->GetName()); // copy object to memory
290 Int_t pulseLength = hisPad->GetNbinsX() -4;
291 // -4 because first four timebins contain pad specific informations
292 Int_t npulse = (Int_t)hisPad->GetBinContent(1);
293 Int_t sector = (Int_t)hisPad->GetBinContent(2);
294
295 char hname[100];
296 sprintf(hname,"sector%d",sector);
297 TH1F *his = (TH1F*)fileOut.Get(hname);
298
299 if (!his ) { // new histogram (new sector)
300 his = new TH1F(hname,hname, pulseLength+4, 0, pulseLength+4);
301 his->SetBinContent(1,npulse); // pulse counter
302 his->SetBinContent(2,sector); // set sector info
303 his->SetBinContent(3,-1); // set to dummy value
304 his->SetBinContent(4,-1); // set to dummy value
305 for (Int_t ipos=0; ipos<pulseLength; ipos++){
306 his->SetBinContent(ipos+5,hisPad->GetBinContent(ipos+5));
307 }
308 his->Write(hname);
309 printf("found %s ...\n", hname);
310 } else { // add to existing histogram for sector
311 his->AddBinContent(1,npulse); // pulse counter
312 for (Int_t ipos=0; ipos<pulseLength; ipos++){
313 his->AddBinContent(ipos+5,hisPad->GetBinContent(ipos+5));
314 }
315 his->Write(hname,kOverwrite);
316 }
317
318 if (iHist%500==0) {
319 printf("merging status: \t %d pads out of %d \n",iHist, nHist);
320 }
321 }
322 printf("merging done ...\n");
323 fileIn.Close();
324 fileOut.Close();
325
326 // calculate TCF parameters on averaged pulse per Sector
327 AnalyzeRootFile(nameFileOut);
328
329
330}
331
332
333//____________________________________________________________________________
334void AliTPCCalibTCF::AnalyzeRootFile(const char *nameFileIn, Int_t minNumPulse) {
335 //
336 // This function takes a prepeared root file (accumulated histograms: output
337 // of process function) and performs an analysis (fit and equalization) in
338 // order to get the TCF parameters. These are stored in an TNtuple along with
339 // the pad and creation infos. The tuple is written to the output file
340 // "TCFparam+nameFileIn"
341 // To reduce the analysis time, the minimum number of accumulated pulses within
342 // one histogram 'minNumPulse' (to perform the analysis on) can be set
343 //
344
345 TFile fileIn(nameFileIn,"READ");
346 TH1F *hisIn;
347 TKey *key;
348 TIter next( fileIn.GetListOfKeys() );
349
350 char nameFileOut[100];
351 sprintf(nameFileOut,"TCFparam-%s",nameFileIn);
352
353 TFile fileOut(nameFileOut,"RECREATE");
354 fileOut.cd();
355
356 TNtuple *paramTuple = new TNtuple("TCFparam","TCFparameter","sec:row:pad:npulse:Z0:Z1:Z2:P0:P1:P2");
357
358 Int_t nHist = fileIn.GetNkeys();
359 Int_t iHist = 0; // counter for print of analysis-status
360
361 while (key = (TKey *) next()) { // loop over histograms
362
363 printf("Analyze histogramm %d out of %d\n",++iHist,nHist);
364 hisIn = (TH1F*)fileIn.Get(key->GetName()); // copy object to memory
365
366 Int_t numPulse = (Int_t)hisIn->GetBinContent(1);
367 if ( numPulse >= minNumPulse ) {
368
369 Double_t* coefP = new Double_t[3];
370 Double_t* coefZ = new Double_t[3];
371 for(Int_t i = 0; i < 3; i++){
372 coefP[i] = 0;
373 coefZ[i] = 0;
374 }
375 // perform the analysis on the given histogram
376 Int_t fitOk = AnalyzePulse(hisIn, coefZ, coefP);
377 if (fitOk) { // Add found parameters to file
378 Int_t sector = (Int_t)hisIn->GetBinContent(2);
379 Int_t row = (Int_t)hisIn->GetBinContent(3);
380 Int_t pad = (Int_t)hisIn->GetBinContent(4);
381 paramTuple->Fill(sector,row,pad,numPulse,coefZ[0],coefZ[1],coefZ[2],coefP[0],coefP[1],coefP[2]);
382 }
383 coefP->~Double_t();
384 coefZ->~Double_t();
385 }
386
387 }
388
389 fileIn.Close();
390 paramTuple->Write();
391 fileOut.Close();
392
393}
394
395
396//____________________________________________________________________________
397Int_t AliTPCCalibTCF::AnalyzePulse(TH1F *hisIn, Double_t *coefZ, Double_t *coefP) {
398 //
399 // Performs the analysis on one specific pulse (histogram) by means of fitting
400 // the pulse and equalization of the pulseheight. The found TCF parameters
401 // are stored in the arrays coefZ and coefP
402 //
403
404 Int_t pulseLength = hisIn->GetNbinsX() -4;
405 // -1 because the first four timebins usually contain pad specific informations
406 Int_t npulse = (Int_t)hisIn->GetBinContent(1);
407 Int_t sector = (Int_t)hisIn->GetBinContent(2);
408 Int_t row = (Int_t)hisIn->GetBinContent(3);
409 Int_t pad = (Int_t)hisIn->GetBinContent(4);
410
411 // write pulseinformation to TNtuple and normalize to 100 ADC (because of
412 // given upper and lower fit parameter limits) in order to pass the pulse
413 // to TMinuit
414
415 TNtuple *dataTuple = new TNtuple("ntupleFit","Pulse","timebin:sigNorm:error");
416 Double_t error = 0.05;
417 Double_t max = hisIn->GetMaximum(FLT_MAX);
418 for (Int_t ipos=0; ipos<pulseLength; ipos++) {
419 Double_t errorz=error;
420 if (ipos>100) { errorz = error*100; } // very simple weight: FIXME in case
421 Double_t signal = hisIn->GetBinContent(ipos+5);
422 Double_t signalNorm = signal/max*100; //pulseheight normaliz. to 100ADC
423 dataTuple->Fill(ipos, signalNorm, errorz);
424 }
425
426 // Call fit function (TMinuit) to get the first 2 PZ Values for the
427 // Tail Cancelation Filter
428 Int_t fitOk = FitPulse(dataTuple, coefZ, coefP);
429
430 if (fitOk) {
431 // calculates the 3rd set (remaining 2 PZ values) in order to restore the
432 // original height of the pulse
433 Equalization(dataTuple, coefZ, coefP);
434
435 printf("Calculated TCF parameters for: \n");
436 printf("Sector %d | Row %d | Pad %d |", sector, row, pad);
437 printf(" Npulses: %d \n", npulse);
438 for(Int_t i = 0; i < 3; i++){
439 printf("P[%d] = %f Z[%d] = %f \n",i,coefP[i],i,coefZ[i]);
440 if (i==2) { printf("\n"); }
441 }
442 dataTuple->~TNtuple();
443 return 1;
444 } else { // fit did not converge
445 Error("FindFit", "TCF fit not converged - pulse abandoned ");
446 printf("in Sector %d | Row %d | Pad %d |", sector, row, pad);
447 printf(" Npulses: %d \n\n", npulse);
448 coefP[2] = 0; coefZ[2] = 0;
449 dataTuple->~TNtuple();
450 return 0;
451 }
452
453}
454
455
456
457//____________________________________________________________________________
458void AliTPCCalibTCF::TestTCFonRootFile(const char *nameFileIn, const char *nameFileTCF, Int_t plotFlag, Int_t lowKey, Int_t upKey)
459{
460 //
461 // Performs quality parameters evaluation of the calculated TCF parameters in
462 // the file 'nameFileTCF' for every (accumulated) histogram within the
463 // prepeared root file 'nameFileIn'.
464 // The found quality parameters are stored in an TNtuple which will be saved
465 // in a Root file 'Quality-*'.
466 // If the parameter for the given pulse (given pad) was not found, the pulse
467 // is rejected.
468 //
469
470 TFile fileIn(nameFileIn,"READ");
471
472 Double_t* coefP = new Double_t[3];
473 Double_t* coefZ = new Double_t[3];
474 for(Int_t i = 0; i < 3; i++){
475 coefP[i] = 0;
476 coefZ[i] = 0;
477 }
478
479 char nameFileOut[100];
480 sprintf(nameFileOut,"Quality_%s_AT_%s",nameFileTCF, nameFileIn);
481 TFile fileOut(nameFileOut,"RECREATE");
482
483 TNtuple *qualityTuple = new TNtuple("TCFquality","TCF quality Values","sec:row:pad:npulse:heightDev:areaRed:widthRed:undershot:maxUndershot");
484
485 TH1F *hisIn;
486 TKey *key;
487 TIter next( fileIn.GetListOfKeys() );
488
489 Int_t nHist = fileIn.GetNkeys();
490 Int_t iHist = 0;
491
492 for(Int_t i=0;i<lowKey-1;i++){++iHist; key = (TKey *) next();}
493 while (key = (TKey *) next()) { // loop over saved histograms
494
495 // loading pulse to memory;
496 printf("validating pulse %d out of %d\n",++iHist,nHist);
497 hisIn = (TH1F*)fileIn.Get(key->GetName());
498
499 // find the correct TCF parameter according to the his infos (first 4 bins)
500 Int_t nPulse = FindCorTCFparam(hisIn, nameFileTCF, coefZ, coefP);
501 if (nPulse) { // doing the TCF quality analysis
502 Double_t *quVal = GetQualityOfTCF(hisIn,coefZ,coefP, plotFlag);
503 Int_t sector = (Int_t)hisIn->GetBinContent(2);
504 Int_t row = (Int_t)hisIn->GetBinContent(3);
505 Int_t pad = (Int_t)hisIn->GetBinContent(4);
506 qualityTuple->Fill(sector,row,pad,nPulse,quVal[0],quVal[1],quVal[2],quVal[3],quVal[4],quVal[5]);
507 quVal->~Double_t();
508 }
509
510 if (iHist>=upKey) {break;}
511
512 }
513
514 fileOut.cd();
515 qualityTuple->Write();
516
517 coefP->~Double_t();
518 coefZ->~Double_t();
519
520 fileOut.Close();
521 fileIn.Close();
522
523}
524
525
526
527//_____________________________________________________________________________
528void AliTPCCalibTCF::TestTCFonRawFile(const char *nameRawFile, const char *nameFileOut, const char *nameFileTCF, Int_t plotFlag) {
529 //
530 // Performs quality parameters evaluation of the calculated TCF parameters in
531 // the file 'nameFileTCF' for every proper pulse (according to given thresholds)
532 // within the RAW file 'nameRawFile'.
533 // The found quality parameters are stored in a TNtuple which will be saved
534 // in the Root file 'nameFileOut'. If the parameter for the given pulse
535 // (given pad) was not found, the pulse is rejected.
536 //
537
538 //
539 // Reads a RAW data file, extracts Pulses (according the given tresholds)
540 // and test the found TCF parameters on them ...
541 //
542
543 AliRawReader *rawReader = new AliRawReaderRoot(nameRawFile);
544 rawReader->Reset();
545
546 Double_t* coefP = new Double_t[3];
547 Double_t* coefZ = new Double_t[3];
548 for(Int_t i = 0; i < 3; i++){
549 coefP[i] = 0;
550 coefZ[i] = 0;
551 }
552
553 while ( rawReader->NextEvent() ){
554
555 printf("Reading next event...");
556 AliTPCRawStream rawStream(rawReader);
557 rawReader->Select("TPC");
558
559 Int_t sector = rawStream.GetSector();
560 Int_t row = rawStream.GetRow();
561 Int_t prevTime = 999999;
562 Int_t prevPad = 999999;
563
564 TH1I *tempHis = new TH1I("tempHis","tempHis",fSample+fGateWidth,fGateWidth,fSample+fGateWidth);
565 TH1I *tempRMSHis = new TH1I("tempRMSHis","tempRMSHis",2000,0,2000);
566
567 rawStream.SetOldRCUFormat(1);
568
569 TFile fileOut(nameFileOut,"UPDATE"); // Quality Parameters storage
570 TNtuple *qualityTuple = (TNtuple*)fileOut.Get("TCFquality");
571 if (!qualityTuple) { // no entry in file
572 qualityTuple = new TNtuple("TCFquality","TCF quality Values","sec:row:pad:npulse:heightDev:areaRed:widthRed:undershot:maxUndershot:pulseRMS");
573 }
574
575 while (rawStream.Next()) {
576
577 if (rawStream.IsNewRow()){
578 sector = rawStream.GetSector();
579 row = rawStream.GetRow();
580 }
581
582 Int_t pad = rawStream.GetPad();
583 Int_t time = rawStream.GetTime();
584 Int_t signal = rawStream.GetSignal();
585
586 if (!rawStream.IsNewPad()) { // Reading signal from one Pad
587 if (time>prevTime) {
588 printf("Wrong time: %d %d\n",rawStream.GetTime(),prevTime);
589 rawStream.Dump();
590 } else {
591 if (time<=fSample+fGateWidth && time>fGateWidth) {
592 tempHis->SetBinContent(time,signal);
593 }
594 }
595 } else { // Decision for saving pulse according to treshold settings
596
597 Int_t max = (Int_t)tempHis->GetMaximum(FLT_MAX);
598 Int_t maxpos = tempHis->GetMaximumBin();
599
600 Int_t first = (Int_t)TMath::Max(maxpos-10, 0);
601 Int_t last = TMath::Min((Int_t)maxpos+fPulseLength-10, fSample);
602
603
604 // simple baseline substraction ? better one needed ? (pedestalsubstr.?)
605 // and RMS calculation with timebins before the pulse and at the end of
606 // the signal
607 for (Int_t ipos = 0; ipos<6; ipos++) {
608 // before the pulse
609 tempRMSHis->Fill(tempHis->GetBinContent(first+ipos));
610 // at the end to get rid of pulses with serious baseline fluctuations
611 tempRMSHis->Fill(tempHis->GetBinContent(last-ipos));
612 }
613 Double_t baseline = tempRMSHis->GetMean();
614 Double_t rms = tempRMSHis->GetRMS();
615 tempRMSHis->Reset();
616
617 Double_t lowLim = fLowPulseLim+baseline;
618 Double_t upLim = fUpPulseLim+baseline;
619
620 // Decision if found pulse is a proper one according to given tresholds
621 if (max>lowLim && max<upLim && !((last-first)<fPulseLength) && rms<fRMSLim){
622 // note:
623 // assuming that lowLim is higher than the pedestal value!
624 char hname[100];
625 sprintf(hname,"sec%drow%dpad%d",sector,row,prevPad);
626 TH1F *his = new TH1F(hname,hname, fPulseLength+4, 0, fPulseLength+4);
627 his->SetBinContent(1,1); // pulse counter (1st pulse)
628 his->SetBinContent(2,sector); // sector
629 his->SetBinContent(3,row); // row
630 his->SetBinContent(4,prevPad); // pad
631 for (Int_t ipos=0; ipos<last-first; ipos++){
632 Int_t signal = (Int_t)(tempHis->GetBinContent(ipos+first)-baseline);
633 his->SetBinContent(ipos+5,signal);
634 }
635
636 printf("Pulse found in %s: ADC %d at bin %d \n", hname, max, maxpos+fGateWidth);
637
638 // find the correct TCF parameter according to the his infos
639 // (first 4 bins)
640 Int_t nPulse = FindCorTCFparam(his, nameFileTCF, coefZ, coefP);
641
642 if (nPulse) { // Parameters found - doing the TCF quality analysis
643 Double_t *quVal = GetQualityOfTCF(his,coefZ,coefP, plotFlag);
644 qualityTuple->Fill(sector,row,pad,nPulse,quVal[0],quVal[1],quVal[2],quVal[3],quVal[4],quVal[5]);
645 quVal->~Double_t();
646 }
647 his->~TH1F();
648 }
649 tempHis->Reset();
650 }
651 prevTime = time;
652 prevPad = pad;
653 }
654
655 tempHis->~TH1I();
656 tempRMSHis->~TH1I();
657
658 printf("Finished to read event - close output file ... \n");
659
660 fileOut.cd();
661 qualityTuple->Write("TCFquality",kOverwrite);
662 fileOut.Close();
663
664
665
666 } // event loop
667
668
669 coefP->~Double_t();
670 coefZ->~Double_t();
671
672 rawReader->~AliRawReader();
673
674}
675
676
677//____________________________________________________________________________
678TNtuple *AliTPCCalibTCF::PlotOccupSummary(const char *nameFile, Int_t nPulseMin) {
679 //
680 // Plots the number of summed pulses per pad above a given minimum at the
681 // pad position
682 // 'nameFile': root-file created with the Process function
683 //
684
685 TFile *file = new TFile(nameFile,"READ");
686
687 TH1F *his;
688 TKey *key;
689 TIter next( file->GetListOfKeys() );
690
691 TNtuple *ntuple = new TNtuple("ntuple","ntuple","x:y:z:npulse");
692
693 Int_t nPads = 0;
694 while ((key = (TKey *) next())) { // loop over histograms within the file
695
696 his = (TH1F*)file->Get(key->GetName()); // copy object to memory
697
698 Int_t npulse = (Int_t)his->GetBinContent(1);
699 Int_t sec = (Int_t)his->GetBinContent(2);
700 Int_t row = (Int_t)his->GetBinContent(3);
701 Int_t pad = (Int_t)his->GetBinContent(4);
702
703 if (row==-1 & pad==-1) { // summed pulses per sector
704 row = 40; pad = 40; // set to approx middle row for better plot
705 }
706
707 Float_t *pos = new Float_t[3];
708 // find x,y,z position of the pad
709 AliTPCROC::Instance()->GetPositionGlobal(sec,row,pad,pos);
710 if (npulse>=nPulseMin) {
711 ntuple->Fill(pos[0],pos[1],pos[2],npulse);
712 printf("%d collected pulses in sector %d row %d pad %d\n",npulse,sec,row,pad);
713 }
714 pos->~Float_t();
715 nPads++;
716 }
717
718 TCanvas *c1 = new TCanvas("TCanvas","Number of pulses found",1000,500);
719 c1->Divide(2,1);
720 char cSel[100];
721 gStyle->SetPalette(1);
722 gStyle->SetLabelOffset(-0.03,"Z");
723
724 if (nPads<72) { // pulse per pad
725 ntuple->SetMarkerStyle(8);
726 ntuple->SetMarkerSize(4);
727 } else { // pulse per sector
728 ntuple->SetMarkerStyle(7);
729 }
730
731 c1->cd(1);
732 sprintf(cSel,"z>0&&npulse>=%d",nPulseMin);
733 ntuple->Draw("y:x:npulse",cSel,"colz");
734 gPad->SetTitle("A side");
735
736 c1->cd(2);
737 sprintf(cSel,"z<0&&npulse>%d",nPulseMin);
738 ntuple->Draw("y:x:npulse",cSel,"colz");
739 gPad->SetTitle("C side");
740
741 file->Close();
742 return ntuple;
743
744}
745
746//____________________________________________________________________________
747void AliTPCCalibTCF::PlotQualitySummary(const char *nameFileQuality, const char *plotSpec, const char *cut, const char *pOpt)
748{
749 //
750 // This function is an easy interface to load the QualityTuple (produced with
751 // the function 'TestOn%File' and plots them according to the plot specifications
752 // 'plotSpec' e.g. "widthRed:maxUndershot"
753 // One may also set cut and plot options ("cut","pOpt")
754 //
755 // The stored quality parameters are ...
756 // sec:row:pad:npulse: ... usual pad info
757 // heightDev ... height deviation in percent
758 // areaRed ... area reduction in percent
759 // widthRed ... width reduction in percent
760 // undershot ... mean undershot after the pulse in ADC
761 // maxUndershot ... maximum of the undershot after the pulse in ADC
762 // pulseRMS ... RMS of the pulse used to calculate the Quality parameters in ADC
763 //
764
765 TFile file(nameFileQuality,"READ");
766 TNtuple *qualityTuple = (TNtuple*)file.Get("TCFquality");
767 gStyle->SetPalette(1);
768 qualityTuple->Draw(plotSpec,cut,pOpt);
769
770}
771
772//____________________________________________________________________________
773void AliTPCCalibTCF::DumpTCFparamToFile(const char *nameFileTCF,const char *nameFileOut)
774{
775 //
776 // Writes the TCF parameters from file 'nameFileTCF' to a output file
777 //
778
779 // Note: currently just TCF parameters per Sector or TCF parameters for pad
780 // which were analyzed. There is no method included so far to export
781 // parameters for not analyzed pad, which means there are eventually
782 // missing TCF parameters
783 // TODO: carefull! Fill up missing pads with averaged (sector) values?
784
785
786 // open file with TCF parameters
787 TFile fileTCF(nameFileTCF,"READ");
788 TNtuple *paramTuple = (TNtuple*)fileTCF.Get("TCFparam");
789
790 // open output txt file ...
791 FILE *output;
792 output=fopen(nameFileOut,"w"); // open outfile.
793
794 // Header line
795 Int_t sectorWise = paramTuple->GetEntries("row==-1&&pad==-1");
796 if (sectorWise) {
797 fprintf(output,"sector \t Z0 \t\t Z1 \t\t Z2 \t\t P0 \t\t P1 \t\t P2\n");
798 } else {
799 fprintf(output,"sector \t row \t pad \t Z0 \t\t Z1 \t\t Z2 \t\t P0 \t\t P1 \t\t P2\n");
800 }
801
802 for (Int_t i=0; i<paramTuple->GetEntries(); i++) {
803 paramTuple->GetEntry(i);
804 Float_t *p = paramTuple->GetArgs();
805
806 // _______________________________________________________________
807 // to Tuple to txt file - unsorted printout
808
809 for (Int_t i=0; i<10; i++){
810 if (sectorWise) {
811 if (i<1) fprintf(output,"%3.0f \t ",p[i]); // sector info
812 if (i>3) fprintf(output,"%1.4f \t ",p[i]); // TCF param
813 } else {
814 if (i<3) fprintf(output,"%3.0f \t ",p[i]); // pad info
815 if (i>3) fprintf(output,"%1.4f \t ",p[i]); // TCF param
816 }
817 }
818 fprintf(output,"\n");
819 }
820
821 // close output txt file
822 fprintf(output,"\n");
823 fclose(output);
824
825 fileTCF.Close();
826
827
828}
829
830
831
832//_____________________________________________________________________________
833Int_t AliTPCCalibTCF::FitPulse(TNtuple *dataTuple, Double_t *coefZ, Double_t *coefP) {
834 //
835 // function to fit one pulse and to calculate the according pole-zero parameters
836 //
837
838 // initialize TMinuit with a maximum of 8 params
839 TMinuit *gMinuit = new TMinuit(8);
840 gMinuit->mncler(); // Reset Minuit's list of paramters
841 gMinuit->SetPrintLevel(-1); // No Printout
842 gMinuit->SetFCN(AliTPCCalibTCF::FitFcn); // To set the address of the
843 // minimization function
844 gMinuit->SetObjectFit(dataTuple);
845
846 Double_t arglist[10];
847 Int_t ierflg = 0;
848
849 arglist[0] = 1;
850 gMinuit->mnexcm("SET ERR", arglist ,1,ierflg);
851
852 // Set standard starting values and step sizes for each parameter
853 // upper and lower limit (in a reasonable range) are set to improve
854 // the stability of TMinuit
855 static Double_t vstart[8] = {125, 4.0, 0.3, 0.5, 5.5, 100, 1, 2.24};
856 static Double_t step[8] = {0.1, 0.1, 0.1, 0.1, 0.1, 0.1, 0.1, 0.1};
857 static Double_t min[8] = {100, 3., 0.1, 0.2, 3., 60., 0., 2.0};
858 static Double_t max[8] = {200, 20., 5., 3., 30., 300., 20., 2.5};
859
860 gMinuit->mnparm(0, "A1", vstart[0], step[0], min[0], max[0], ierflg);
861 gMinuit->mnparm(1, "A2", vstart[1], step[1], min[1], max[1], ierflg);
862 gMinuit->mnparm(2, "A3", vstart[2], step[2], min[2], max[2], ierflg);
863 gMinuit->mnparm(3, "T1", vstart[3], step[3], min[3], max[3], ierflg);
864 gMinuit->mnparm(4, "T2", vstart[4], step[4], min[4], max[4], ierflg);
865 gMinuit->mnparm(5, "T3", vstart[5], step[5], min[5], max[5], ierflg);
866 gMinuit->mnparm(6, "T0", vstart[6], step[6], min[6], max[6], ierflg);
867 gMinuit->mnparm(7, "TTP", vstart[7], step[7], min[7], max[7],ierflg);
868 gMinuit->FixParameter(7); // 2.24 ... out of pulserRun Fit (->IRF)
869
870 // Now ready for minimization step
871 arglist[0] = 2000; // max num of iterations
872 arglist[1] = 0.1; // tolerance
873
874 gMinuit->mnexcm("MIGRAD", arglist ,2,ierflg);
875
876 Double_t p1 = 0.0 ;
877 gMinuit->mnexcm("SET NOW", &p1 , 0, ierflg) ; // No Warnings
878
879 if (ierflg == 4) { // Fit failed
880 for (Int_t i=0;i<3;i++) {
881 coefP[i] = 0;
882 coefZ[i] = 0;
883 }
884 gMinuit->~TMinuit();
885 return 0;
886 } else { // Fit successfull
887
888 // Extract parameters from TMinuit
889 Double_t *fitParam = new Double_t[6];
890 for (Int_t i=0;i<6;i++) {
891 Double_t err = 0;
892 Double_t val = 0;
893 gMinuit->GetParameter(i,val,err);
894 fitParam[i] = val;
895 }
896
897 // calculates the first 2 sets (4 PZ values) out of the fitted parameters
898 Double_t *valuePZ = ExtractPZValues(fitParam);
899
900 // TCF coefficients which are used for the equalisation step (stage)
901 // ZERO/POLE Filter
9c2921ef 902 coefZ[0] = TMath::Exp(-1/valuePZ[2]);
903 coefZ[1] = TMath::Exp(-1/valuePZ[3]);
904 coefP[0] = TMath::Exp(-1/valuePZ[0]);
905 coefP[1] = TMath::Exp(-1/valuePZ[1]);
eb7e0771 906
907 fitParam->~Double_t();
908 valuePZ->~Double_t();
909 gMinuit->~TMinuit();
910
911 return 1;
912
913 }
914
915}
916
917
918//____________________________________________________________________________
919void AliTPCCalibTCF::FitFcn(Int_t &/*nPar*/, Double_t */*grad*/, Double_t &f, Double_t *par, Int_t /*iflag*/)
920{
921 //
922 // Minimization function needed for TMinuit with FitFunction included
923 // Fit function: Sum of three convolution terms (IRF conv. with Exp.)
924 //
925
926 // Get Data ...
927 TNtuple *dataTuple = (TNtuple *) gMinuit->GetObjectFit();
928
929 //calculate chisquare
930 Double_t chisq = 0;
931 Double_t delta = 0;
932 for (Int_t i=0; i<dataTuple->GetEntries(); i++) { // loop over data points
933 dataTuple->GetEntry(i);
934 Float_t *p = dataTuple->GetArgs();
935 Double_t t = p[0];
936 Double_t signal = p[1]; // Normalized signal
937 Double_t error = p[2];
938
939 // definition and evaluation if the IonTail specific fit function
940 Double_t sigFit = 0;
941
942 Double_t ttp = par[7]; // signal shaper raising time
943 t=t-par[6]; // time adjustment
944
945 if (t<0) {
946 sigFit = 0;
947 } else {
9c2921ef 948 Double_t f1 = 1/TMath::Power((4-ttp/par[3]),5)*(24*ttp*TMath::Exp(4)*(TMath::Exp(-t/par[3]) - TMath::Exp(-4*t/ttp) * ( 1+t*(4-ttp/par[3])/ttp+TMath::Power(t*(4-ttp/par[3])/ttp,2)/2 + TMath::Power(t*(4-ttp/par[3])/ttp,3)/6 + TMath::Power(t*(4-ttp/par[3])/ttp,4)/24)));
eb7e0771 949
9c2921ef 950 Double_t f2 = 1/TMath::Power((4-ttp/par[4]),5)*(24*ttp*TMath::Exp(4)*(TMath::Exp(-t/par[4]) - TMath::Exp(-4*t/ttp) * ( 1+t*(4-ttp/par[4])/ttp+TMath::Power(t*(4-ttp/par[4])/ttp,2)/2 + TMath::Power(t*(4-ttp/par[4])/ttp,3)/6 + TMath::Power(t*(4-ttp/par[4])/ttp,4)/24)));
eb7e0771 951
9c2921ef 952 Double_t f3 = 1/TMath::Power((4-ttp/par[5]),5)*(24*ttp*TMath::Exp(4)*(TMath::Exp(-t/par[5]) - TMath::Exp(-4*t/ttp) * ( 1+t*(4-ttp/par[5])/ttp+TMath::Power(t*(4-ttp/par[5])/ttp,2)/2 + TMath::Power(t*(4-ttp/par[5])/ttp,3)/6 + TMath::Power(t*(4-ttp/par[5])/ttp,4)/24)));
eb7e0771 953
954 sigFit = par[0]*f1 + par[1]*f2 +par[2]*f3;
955 }
956
957 // chisqu calculation
958 delta = (signal-sigFit)/error;
959 chisq += delta*delta;
960 }
961
962 f = chisq;
963
964}
965
966
967
968//____________________________________________________________________________
969Double_t* AliTPCCalibTCF::ExtractPZValues(Double_t *param) {
970 //
971 // Calculation of Pole and Zero values out of fit parameters
972 //
973
974 Double_t vA1, vA2, vA3, vTT1, vTT2, vTT3, vTa, vTb;
975 vA1 = 0; vA2 = 0; vA3 = 0;
976 vTT1 = 0; vTT2 = 0; vTT3 = 0;
977 vTa = 0; vTb = 0;
978
979 // nasty method of sorting the fit parameters to avoid wrong mapping
980 // to the different stages of the TCF filter
981 // (e.g. first 2 fit parameters represent the electron signal itself!)
982
983 if (param[3]==param[4]) {param[3]=param[3]+0.0001;}
984 if (param[5]==param[4]) {param[5]=param[5]+0.0001;}
985
986 if ((param[5]>param[4])&(param[5]>param[3])) {
987 if (param[4]>=param[3]) {
988 vA1 = param[0]; vA2 = param[1]; vA3 = param[2];
989 vTT1 = param[3]; vTT2 = param[4]; vTT3 = param[5];
990 } else {
991 vA1 = param[1]; vA2 = param[0]; vA3 = param[2];
992 vTT1 = param[4]; vTT2 = param[3]; vTT3 = param[5];
993 }
994 } else if ((param[4]>param[5])&(param[4]>param[3])) {
995 if (param[5]>=param[3]) {
996 vA1 = param[0]; vA2 = param[2]; vA3 = param[1];
997 vTT1 = param[3]; vTT2 = param[5]; vTT3 = param[4];
998 } else {
999 vA1 = param[2]; vA2 = param[0]; vA3 = param[1];
1000 vTT1 = param[5]; vTT2 = param[3]; vTT3 = param[4];
1001 }
1002 } else if ((param[3]>param[4])&(param[3]>param[5])) {
1003 if (param[5]>=param[4]) {
1004 vA1 = param[1]; vA2 = param[2]; vA3 = param[0];
1005 vTT1 = param[4]; vTT2 = param[5]; vTT3 = param[3];
1006 } else {
1007 vA1 = param[2]; vA2 = param[1]; vA3 = param[0];
1008 vTT1 = param[5]; vTT2 = param[4]; vTT3 = param[3];
1009 }
1010 }
1011
1012
1013 // Transformation of fit parameters into PZ values (needed by TCF)
1014 Double_t beq = (vA1/vTT2+vA1/vTT3+vA2/vTT1+vA2/vTT3+vA3/vTT1+vA3/vTT2)/(vA1+vA2+vA3);
1015 Double_t ceq = (vA1/(vTT2*vTT3)+vA2/(vTT1*vTT3)+vA3/(vTT1*vTT2))/(vA1+vA2+vA3);
1016
1017 Double_t s1 = -beq/2-sqrt((beq*beq-4*ceq)/4);
1018 Double_t s2 = -beq/2+sqrt((beq*beq-4*ceq)/4);
1019
1020 if (vTT2<vTT3) {// not necessary but avoids significant undershots in first PZ
1021 vTa = -1/s1;
1022 vTb = -1/s2;
1023 }else{
1024 vTa = -1/s2;
1025 vTb = -1/s1;
1026 }
1027
1028 Double_t *valuePZ = new Double_t[4];
1029 valuePZ[0]=vTa;
1030 valuePZ[1]=vTb;
1031 valuePZ[2]=vTT2;
1032 valuePZ[3]=vTT3;
1033
1034 return valuePZ;
1035
1036}
1037
1038
1039//____________________________________________________________________________
1040void AliTPCCalibTCF::Equalization(TNtuple *dataTuple, Double_t *coefZ, Double_t *coefP) {
1041 //
1042 // calculates the 3rd set of TCF parameters (remaining 2 PZ values) in
1043 // order to restore the original pulse height and adds them to the passed arrays
1044 //
1045
1046 Double_t *s0 = new Double_t[1000]; // original pulse
1047 Double_t *s1 = new Double_t[1000]; // pulse after 1st PZ filter
1048 Double_t *s2 = new Double_t[1000]; // pulse after 2nd PZ filter
1049
1050 const Int_t kPulseLength = dataTuple->GetEntries();
1051
1052 for (Int_t ipos=0; ipos<kPulseLength; ipos++) {
1053 dataTuple->GetEntry(ipos);
1054 Float_t *p = dataTuple->GetArgs();
1055 s0[ipos] = p[1];
1056 }
1057
1058 // non-discret implementation of the first two TCF stages (recursive formula)
1059 // discrete Altro emulator is not used because of accuracy!
1060 s1[0] = s0[0]; // 1st PZ filter
1061 for(Int_t ipos = 1; ipos < kPulseLength ; ipos++){
1062 s1[ipos] = s0[ipos] + coefP[0]*s1[ipos-1] - coefZ[0]*s0[ipos-1];
1063 }
1064 s2[0] = s1[0]; // 2nd PZ filter
1065 for(Int_t ipos = 1; ipos < kPulseLength ; ipos++){
1066 s2[ipos] = s1[ipos] + coefP[1]*s2[ipos-1] - coefZ[1]*s1[ipos-1];
1067 }
1068
1069 // find maximum amplitude and position of original pulse and pulse after
1070 // the first two stages of the TCF
1071 Int_t s0pos = 0, s2pos = 0;
1072 Double_t s0ampl = s0[0], s2ampl = s2[0]; // start values
1073 for(Int_t ipos = 1; ipos < kPulseLength; ipos++){
1074 if (s0[ipos] > s0ampl){
1075 s0ampl = s0[ipos];
1076 s0pos = ipos; // should be pos 11 ... check?
1077 }
1078 if (s2[ipos] > s2ampl){
1079 s2ampl = s2[ipos];
1080 s2pos = ipos;
1081 }
1082 }
1083 // calculation of 3rd set ...
1084 if(s0ampl > s2ampl){
1085 coefZ[2] = 0;
1086 coefP[2] = (s0ampl - s2ampl)/s0[s0pos-1];
1087 } else if (s0ampl < s2ampl) {
1088 coefP[2] = 0;
1089 coefZ[2] = (s2ampl - s0ampl)/s0[s0pos-1];
1090 } else { // same height ? will most likely not happen ?
1091 coefP[2] = 0;
1092 coefZ[2] = 0;
1093 }
1094
1095 s0->~Double_t();
1096 s1->~Double_t();
1097 s2->~Double_t();
1098
1099}
1100
1101
1102
1103//____________________________________________________________________________
1104Int_t AliTPCCalibTCF::FindCorTCFparam(TH1F *hisIn, const char *nameFileTCF, Double_t *coefZ, Double_t *coefP) {
1105 //
1106 // This function searches for the correct TCF parameters to the given
1107 // histogram 'hisIn' within the file 'nameFileTCF'
1108 // If no parameters for this pad (padinfo within the histogram!) where found
1109 // the function returns 0
1110
1111 // Int_t numPulse = (Int_t)hisIn->GetBinContent(1); // number of pulses
1112 Int_t sector = (Int_t)hisIn->GetBinContent(2);
1113 Int_t row = (Int_t)hisIn->GetBinContent(3);
1114 Int_t pad = (Int_t)hisIn->GetBinContent(4);
1115 Int_t nPulse = 0;
1116
1117 //-- searching for calculated TCF parameters for this pad/sector
1118 TFile fileTCF(nameFileTCF,"READ");
1119 TNtuple *paramTuple = (TNtuple*)fileTCF.Get("TCFparam");
1120
1121 // create selection criteria to find the correct TCF params
1122 char sel[100];
1123 if ( paramTuple->GetEntries("row==-1&&pad==-1") ) {
1124 // parameters per SECTOR
1125 sprintf(sel,"sec==%d&&row==-1&&pad==-1",sector);
1126 } else {
1127 // parameters per PAD
1128 sprintf(sel,"sec==%d&&row==%d&&pad==%d",sector,row,pad);
1129 }
1130
1131 // list should contain just ONE entry! ... otherwise there is a mistake!
1132 Long64_t entry = paramTuple->Draw(">>list",sel,"entrylist");
1133 TEntryList *list = (TEntryList*)gDirectory->Get("list");
1134
1135 if (entry) { // TCF set was found for this pad
1136 Long64_t pos = list->GetEntry(0);
1137 paramTuple->GetEntry(pos); // get specific TCF parameters
1138 Float_t *p = paramTuple->GetArgs();
1139 // check ...
1140 if(sector==p[0]) {printf("sector ok ... "); }
1141 if(row==p[1]) {printf("row ok ... "); }
1142 if(pad==p[2]) {printf("pad ok ... \n"); }
1143
1144 // number of averaged pulses used to produce TCF params
1145 nPulse = (Int_t)p[3];
1146 // TCF parameters
1147 coefZ[0] = p[4]; coefP[0] = p[7];
1148 coefZ[1] = p[5]; coefP[1] = p[8];
1149 coefZ[2] = p[6]; coefP[2] = p[9];
1150
1151 } else { // no specific TCF parameters found for this pad
1152
1153 printf("no specific TCF paramaters found for pad in ...\n");
1154 printf("in Sector %d | Row %d | Pad %d |\n", sector, row, pad);
1155 nPulse = 0;
1156 coefZ[0] = 0; coefP[0] = 0;
1157 coefZ[1] = 0; coefP[1] = 0;
1158 coefZ[2] = 0; coefP[2] = 0;
1159
1160 }
1161
1162 fileTCF.Close();
1163
1164 return nPulse; // number of averaged pulses for producing the TCF params
1165
1166}
1167
1168
1169//____________________________________________________________________________
1170Double_t *AliTPCCalibTCF::GetQualityOfTCF(TH1F *hisIn, Double_t *coefZ, Double_t *coefP, Int_t plotFlag) {
1171 //
1172 // This function evaluates the quality parameters of the given TCF parameters
1173 // tested on the passed pulse (hisIn)
1174 // The quality parameters are stored in an array. They are ...
1175 // height deviation [ADC]
1176 // area reduction [percent]
1177 // width reduction [percent]
1178 // mean undershot [ADC]
1179 // maximum of undershot after pulse [ADC]
1180 // Pulse RMS [ADC]
1181
1182 // perform ALTRO emulator
1183 TNtuple *pulseTuple = ApplyTCFilter(hisIn, coefZ, coefP, plotFlag);
1184
1185 printf("calculate quality val. for pulse in ... ");
1186 printf(" Sector %d | Row %d | Pad %d |\n", (Int_t)hisIn->GetBinContent(2), (Int_t)hisIn->GetBinContent(3), (Int_t)hisIn->GetBinContent(4));
1187
1188 // Reasonable limit for the calculation of the quality values
1189 Int_t binLimit = 80;
1190
1191 // ============== Variable preparation
1192
1193 // -- height difference in percent of orginal pulse
1194 Double_t maxSig = pulseTuple->GetMaximum("sig");
1195 Double_t maxSigTCF = pulseTuple->GetMaximum("sigAfterTCF");
1196 // -- area reduction (above zero!)
1197 Double_t area = 0;
1198 Double_t areaTCF = 0;
1199 // -- width reduction at certain ADC treshold
1200 // TODO: set treshold at ZS treshold? (3 sigmas of noise?)
1201 Int_t threshold = 3; // treshold in percent
1202 Int_t threshADC = (Int_t)(maxSig/100*threshold);
1203 Int_t startOfPulse = 0; Int_t startOfPulseTCF = 0;
1204 Int_t posOfStart = 0; Int_t posOfStartTCF = 0;
1205 Int_t widthFound = 0; Int_t widthFoundTCF = 0;
1206 Int_t width = 0; Int_t widthTCF = 0;
1207 // -- Calcluation of Undershot (mean of negavive signal after the first
1208 // undershot)
1209 Double_t undershotTCF = 0;
1210 Double_t undershotStart = 0;
1211 // -- Calcluation of Undershot (Sum of negative signal after the pulse)
1212 Double_t maxUndershot = 0;
1213
1214
1215 // === loop over timebins to calculate quality parameters
1216 for (Int_t i=0; i<binLimit; i++) {
1217
1218 // Read signal values
1219 pulseTuple->GetEntry(i);
1220 Float_t *p = pulseTuple->GetArgs();
1221 Double_t sig = p[1];
1222 Double_t sigTCF = p[2];
1223
1224 // calculation of area (above zero)
1225 if (sig>0) {area += sig; }
1226 if (sigTCF>0) {areaTCF += sigTCF; }
1227
1228
1229 // Search for width at certain ADC treshold
1230 // -- original signal
1231 if (widthFound == 0) {
1232 if( (sig > threshADC) && (startOfPulse == 0) ){
1233 startOfPulse = 1;
1234 posOfStart = i;
1235 }
1236 if( (sig < threshADC) && (startOfPulse == 1) ){
1237 widthFound = 1;
1238 width = i - posOfStart + 1;
1239 }
1240 }
1241 // -- signal after TCF
1242 if (widthFoundTCF == 0) {
1243 if( (sigTCF > threshADC) && (startOfPulseTCF == 0) ){
1244 startOfPulseTCF = 1;
1245 posOfStartTCF = i;
1246 }
1247 if( (sigTCF < threshADC) && (startOfPulseTCF == 1) ){
1248 widthFoundTCF = 1;
1249 widthTCF = i -posOfStartTCF + 1;
1250 }
1251
1252 }
1253
1254 // finds undershot start
1255 if ( (widthFoundTCF==1) && (sigTCF<0) ) {
1256 undershotStart = 1;
1257 }
1258
1259 // Calculation of undershot sum (after pulse)
1260 if ( widthFoundTCF==1 ) {
1261 undershotTCF += sigTCF;
1262 }
1263
1264 // Search for maximal undershot (is equal to minimum after the pulse)
1265 if ( (undershotStart==1)&&(i<(posOfStartTCF+widthTCF+20)) ) {
1266 if (maxUndershot>sigTCF) { maxUndershot = sigTCF; }
1267 }
1268
1269 }
1270
1271 // == Calculation of Quality parameters
1272
1273 // -- height difference in ADC
1274 Double_t heightDev = maxSigTCF-maxSig;
1275
1276 // Area reduction of the pulse in percent
1277 Double_t areaReduct = 100-areaTCF/area*100;
1278
1279 // Width reduction in percent
1280 Double_t widthReduct = 0;
1281 if ((widthFound==1)&&(widthFoundTCF==1)) { // in case of not too big IonTail
1282 widthReduct = 100-(Double_t)widthTCF/(Double_t)width*100;
1283 if (widthReduct<0) { widthReduct = 0;}
1284 }
1285
1286 // Undershot - mean of neg.signals after pulse
1287 Double_t length = 1;
1288 if (binLimit-widthTCF-posOfStartTCF) { length = (binLimit-widthTCF-posOfStartTCF);}
1289 Double_t undershot = undershotTCF/length;
1290
1291
1292 // calculation of pulse RMS with timebins before and at the end of the pulse
1293 TH1I *tempRMSHis = new TH1I("tempRMSHis","tempRMSHis",100,-50,50);
1294 for (Int_t ipos = 0; ipos<6; ipos++) {
1295 // before the pulse
1296 tempRMSHis->Fill(hisIn->GetBinContent(ipos+5));
1297 // at the end
1298 tempRMSHis->Fill(hisIn->GetBinContent(hisIn->GetNbinsX()-ipos));
1299 }
1300 Double_t pulseRMS = tempRMSHis->GetRMS();
1301 tempRMSHis->~TH1I();
1302
1303 if (plotFlag) {
1304 // == Output
1305 printf("height deviation [ADC]:\t\t\t %3.1f\n", heightDev);
1306 printf("area reduction [percent]:\t\t %3.1f\n", areaReduct);
1307 printf("width reduction [percent]:\t\t %3.1f\n", widthReduct);
1308 printf("mean undershot [ADC]:\t\t\t %3.1f\n", undershot);
1309 printf("maximum of undershot after pulse [ADC]: %3.1f\n", maxUndershot);
1310 printf("RMS of the original pulse [ADC]: \t %3.2f\n\n", pulseRMS);
1311
1312 }
1313
1314 Double_t *qualityParam = new Double_t[6];
1315 qualityParam[0] = heightDev;
1316 qualityParam[1] = areaReduct;
1317 qualityParam[2] = widthReduct;
1318 qualityParam[3] = undershot;
1319 qualityParam[4] = maxUndershot;
1320 qualityParam[5] = pulseRMS;
1321
1322 pulseTuple->~TNtuple();
1323
1324 return qualityParam;
1325}
1326
1327
1328//____________________________________________________________________________
1329TNtuple *AliTPCCalibTCF::ApplyTCFilter(TH1F *hisIn, Double_t *coefZ, Double_t *coefP, Int_t plotFlag) {
1330 //
1331 // Applies the given TCF parameters on the given pulse via the ALTRO emulator
1332 // class (discret values) and stores both pulses into a returned TNtuple
1333 //
1334
1335 Int_t nbins = hisIn->GetNbinsX() -4;
1336 // -1 because the first four timebins usually contain pad specific informations
1337 Int_t nPulse = (Int_t)hisIn->GetBinContent(1); // Number of summed pulses
1338 Int_t sector = (Int_t)hisIn->GetBinContent(2);
1339 Int_t row = (Int_t)hisIn->GetBinContent(3);
1340 Int_t pad = (Int_t)hisIn->GetBinContent(4);
1341
1342 // redirect histogram values to arrays (discrete for altro emulator)
1343 Double_t *signalIn = new Double_t[nbins];
1344 Double_t *signalOut = new Double_t[nbins];
1345 short *signalInD = new short[nbins];
1346 short *signalOutD = new short[nbins];
1347 for (Int_t ipos=0;ipos<nbins;ipos++) {
1348 Double_t signal = hisIn->GetBinContent(ipos+5); // summed signal
1349 signalIn[ipos]=signal/nPulse; // mean signal
1350 signalInD[ipos]=(short)(TMath::Nint(signalIn[ipos])); //discrete mean signal
1351 signalOutD[ipos]=signalInD[ipos]; // will be overwritten by AltroEmulator
1352 }
1353
1354 // transform TCF parameters into ALTRO readable format (Integer)
1355 Int_t* valP = new Int_t[3];
1356 Int_t* valZ = new Int_t[3];
1357 for (Int_t i=0; i<3; i++) {
9c2921ef 1358 valP[i] = (Int_t)(coefP[i]*(TMath::Power(2,16)-1));
1359 valZ[i] = (Int_t)(coefZ[i]*(TMath::Power(2,16)-1));
eb7e0771 1360 }
1361
1362 // discret ALTRO EMULATOR ____________________________
1363 AliTPCAltroEmulator *altro = new AliTPCAltroEmulator(nbins, signalOutD);
1364 altro->ConfigAltro(0,1,0,0,0,0); // perform just the TailCancelation
1365 altro->ConfigTailCancellationFilter(valP[0],valP[1],valP[2],valZ[0],valZ[1],valZ[2]);
1366 altro->RunEmulation();
1367 delete altro;
1368
1369 // non-discret implementation of the (recursive formula)
1370 // discrete Altro emulator is not used because of accuracy!
1371 Double_t *s1 = new Double_t[1000]; // pulse after 1st PZ filter
1372 Double_t *s2 = new Double_t[1000]; // pulse after 2nd PZ filter
1373 s1[0] = signalIn[0]; // 1st PZ filter
1374 for(Int_t ipos = 1; ipos<nbins; ipos++){
1375 s1[ipos] = signalIn[ipos] + coefP[0]*s1[ipos-1] - coefZ[0]*signalIn[ipos-1];
1376 }
1377 s2[0] = s1[0]; // 2nd PZ filter
1378 for(Int_t ipos = 1; ipos<nbins; ipos++){
1379 s2[ipos] = s1[ipos] + coefP[1]*s2[ipos-1] - coefZ[1]*s1[ipos-1];
1380 }
1381 signalOut[0] = s2[0]; // 3rd PZ filter
1382 for(Int_t ipos = 1; ipos<nbins; ipos++){
1383 signalOut[ipos] = s2[ipos] + coefP[2]*signalOut[ipos-1] - coefZ[2]*s2[ipos-1];
1384 }
1385 s1->~Double_t();
1386 s2->~Double_t();
1387
1388 // writing pulses to tuple
1389 TNtuple *pulseTuple = new TNtuple("ntupleTCF","PulseTCF","timebin:sig:sigAfterTCF:sigND:sigNDAfterTCF");
1390 for (Int_t ipos=0;ipos<nbins;ipos++) {
1391 pulseTuple->Fill(ipos,signalInD[ipos],signalOutD[ipos],signalIn[ipos],signalOut[ipos]);
1392 }
1393
1394 if (plotFlag) {
1395 char hname[100];
1396 sprintf(hname,"sec%drow%dpad%d",sector,row,pad);
1397 new TCanvas(hname,hname,600,400);
1398 //just plotting non-discret pulses | they look pretties in case of mean sig ;-)
1399 pulseTuple->Draw("sigND:timebin","","L");
1400 // pulseTuple->Draw("sig:timebin","","Lsame");
1401 pulseTuple->SetLineColor(3);
1402 pulseTuple->Draw("sigNDAfterTCF:timebin","","Lsame");
1403 // pulseTuple->Draw("sigAfterTCF:timebin","","Lsame");
1404 }
1405
1406 valP->~Int_t();
1407 valZ->~Int_t();
1408
1409 signalIn->~Double_t();
1410 signalOut->~Double_t();
1411 delete signalIn;
1412 delete signalOut;
1413
1414 return pulseTuple;
1415
1416}
1417
1418
1419
1420
1421//____________________________________________________________________________
1422void AliTPCCalibTCF::PrintPulseThresholds() {
1423 //
1424 // Prints the pulse threshold settings
1425 //
1426
1427 printf(" %4.0d [ADC] ... expected Gate fluctuation length \n", fGateWidth);
1428 printf(" %4.0d [ADC] ... expected usefull signal length \n", fSample);
1429 printf(" %4.0d [ADC] ... needed pulselength for TC characterisation \n", fPulseLength);
1430 printf(" %4.0d [ADC] ... lower pulse height limit \n", fLowPulseLim);
1431 printf(" %4.0d [ADC] ... upper pulse height limit \n", fUpPulseLim);
1432 printf(" %4.1f [ADC] ... maximal pulse RMS \n", fRMSLim);
1433
1434}