1 /**************************************************************************
2 * Copyright(c) 2007-2009, 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 #include "AliITSOnlineSDDInjectors.h"
19 #include <TGraphErrors.h>
24 ///////////////////////////////////////////////////////////////////
26 // Implementation of the class used for SDD injector analysis //
27 // Origin: F.Prino, Torino, prino@to.infn.it //
29 ///////////////////////////////////////////////////////////////////
31 ClassImp(AliITSOnlineSDDInjectors)
33 const Float_t AliITSOnlineSDDInjectors::fgkSaturation = 1008.;
34 const Float_t AliITSOnlineSDDInjectors::fgkDefaultLThreshold = 5.;
35 const Float_t AliITSOnlineSDDInjectors::fgkDefaultHThreshold = 25.;
36 const Float_t AliITSOnlineSDDInjectors::fgkDefaultMinSpeed = 5.5;
37 const Float_t AliITSOnlineSDDInjectors::fgkDefaultMaxSpeed = 9.0;
38 const Float_t AliITSOnlineSDDInjectors::fgkDefaultMaxErr = 1.5;
39 const Int_t AliITSOnlineSDDInjectors::fgkDefaultPolOrder = 3;
40 const Float_t AliITSOnlineSDDInjectors::fgkDefaultTimeStep = 50.;
41 const UShort_t AliITSOnlineSDDInjectors::fgkDefaultTbMin[kInjLines] = {10,50,100};
42 const UShort_t AliITSOnlineSDDInjectors::fgkDefaultTbMax[kInjLines] = {20,70,120};
44 //______________________________________________________________________
45 AliITSOnlineSDDInjectors::AliITSOnlineSDDInjectors():AliITSOnlineSDD(),fHisto(),fTbZero(0.),fRMSTbZero(0.),fNEvents(0),fParam(),fPolOrder(0),fMinDriftSpeed(0.),fMaxDriftSpeed(0.),fMaxDriftSpeedErr(0.),fLowThreshold(0.),fHighThreshold(0.),fFirstPadForFit(0),fLastPadForFit(0),fPadStatusCutForFit(0),fTimeStep(0.),fUseTimeZeroSignal(kFALSE)
47 // default constructor
50 SetTimeStep(fgkDefaultTimeStep);
52 //______________________________________________________________________
53 AliITSOnlineSDDInjectors::AliITSOnlineSDDInjectors(Int_t nddl, Int_t ncarlos, Int_t sid):AliITSOnlineSDD(nddl,ncarlos,sid),fHisto(),fTbZero(0.),fRMSTbZero(0.),fNEvents(0),fParam(),fPolOrder(0),fMinDriftSpeed(0.),fMaxDriftSpeed(0.),fMaxDriftSpeedErr(0.),fLowThreshold(0.),fHighThreshold(0.),fFirstPadForFit(0),fLastPadForFit(0),fPadStatusCutForFit(0),fTimeStep(0.),fUseTimeZeroSignal(kFALSE)
55 // standard constructor
58 SetTimeStep(fgkDefaultTimeStep);
60 //______________________________________________________________________
61 AliITSOnlineSDDInjectors::~AliITSOnlineSDDInjectors(){
63 // fHisto should not be deleted here because it points to an histo created
64 // by the external code which calls the method AnalyzeEvent
65 // if(fHisto) delete fHisto;
66 if(fParam) delete [] fParam;
68 //______________________________________________________________________
69 void AliITSOnlineSDDInjectors::SetDefaults(){
70 for(Int_t i=0;i<kInjLines;i++)
71 SetInjLineRange(i,fgkDefaultTbMin[i],fgkDefaultTbMax[i]);
72 SetThresholds(fgkDefaultLThreshold,fgkDefaultHThreshold);
73 SetPolOrder(fgkDefaultPolOrder);
74 SetMinDriftSpeed(fgkDefaultMinSpeed);
75 SetMaxDriftSpeed(fgkDefaultMaxSpeed);
76 SetMaxDriftSpeedErr(fgkDefaultMaxErr);
77 SetFitLimits(1,kInjPads-2); // exclude first and last pad
78 SetPadStatusCutForFit();
80 //______________________________________________________________________
81 void AliITSOnlineSDDInjectors::SetPositions(){
83 Double_t xLinFromCenterUm[kInjLines]={31860.,17460.,660.};
84 Double_t xAnodeFromCenterUm=35085;
85 for(Int_t i=0;i<kInjLines;i++){
86 fPosition[i]=xAnodeFromCenterUm-xLinFromCenterUm[i];
87 fPosition[i]/=10000.; // from microns to cm
90 //______________________________________________________________________
91 void AliITSOnlineSDDInjectors::Reset(){
93 for(Int_t i=0;i<kInjPads;i++){
97 for(Int_t i=0;i<kInjPads;i++){
98 for(Int_t j=0;j<kInjLines;j++){
101 fRMSCentroid[i][j]=0.;
105 //______________________________________________________________________
106 void AliITSOnlineSDDInjectors::AnalyzeEvent(TH2F* his){
109 FitDriftSpeedVsAnode();
111 //______________________________________________________________________
112 void AliITSOnlineSDDInjectors::AddEvent(TH2F* his){
113 // Add the drift speed from current event to the average value
115 for(Int_t i=0;i<kInjPads;i++){
116 fSumDriftSpeed[i]=0.;
117 fSumSqDriftSpeed[i]=0.;
125 for(Int_t j=0;j<kInjPads;j++){
127 fSumDriftSpeed[j]+=fDriftSpeed[j];
128 fSumSqDriftSpeed[j]+=fDriftSpeed[j]*fDriftSpeed[j];
132 //______________________________________________________________________
133 Double_t AliITSOnlineSDDInjectors::GetRMSDriftSpeed(Int_t ipad) const {
135 if(fNEvents<=1) return 0.;
136 Double_t mean=fSumDriftSpeed[ipad]/(Double_t)fNEvents;
137 Double_t diff=fSumSqDriftSpeed[ipad]/(Double_t)fNEvents-mean*mean;
139 return TMath::Sqrt(diff);
142 //______________________________________________________________________
143 void AliITSOnlineSDDInjectors::FitMeanDriftSpeedVsAnode(){
145 if(fNEvents==0) return;
146 for(Int_t i=0;i<kInjPads;i++){
147 fDriftSpeed[i]=GetMeanDriftSpeed(i);
149 Double_t rms=GetRMSDriftSpeed(i);
150 if(rms>0.) fDriftSpeedErr[i]=rms/TMath::Sqrt(fNEvents);
153 FitDriftSpeedVsAnode();
155 //______________________________________________________________________
156 TGraphErrors* AliITSOnlineSDDInjectors::GetTimeVsDistGraph(Int_t jpad) const{
158 const Int_t kPts=kInjLines+1;
159 Float_t x[kPts],y[kPts],ex[kPts],ey[kPts];
164 for(Int_t i=0;i<kInjLines;i++){
167 y[i+1]=fCentroid[jpad][i];
168 ey[i+1]=fRMSCentroid[jpad][i];
170 TGraphErrors *g=new TGraphErrors(4,x,y,ex,ey);
174 //______________________________________________________________________
175 TGraphErrors* AliITSOnlineSDDInjectors::GetDriftSpeedGraph() const{
178 TGraphErrors *g=new TGraphErrors(0);
179 for(Int_t i=0;i<kInjPads;i++){
180 if(fDriftSpeed[i]>0){
181 g->SetPoint(ipt,GetAnodeNumber(i),fDriftSpeed[i]);
182 g->SetPointError(ipt,0,fDriftSpeedErr[i]);
188 //______________________________________________________________________
189 TGraphErrors* AliITSOnlineSDDInjectors::GetSelectedDriftSpeedGraph(Int_t minAcceptStatus) const{
190 // TGraphErrors with only pads with status of injector >= minAcceptStatus
192 TGraphErrors *g=new TGraphErrors(0);
193 for(Int_t i=0;i<kInjPads;i++){
194 Int_t padStatus = GetInjPadStatus(i);
195 if(fDriftSpeed[i]>0 && padStatus >= minAcceptStatus ){
196 g->SetPoint(ipt,GetAnodeNumber(i),fDriftSpeed[i]);
197 g->SetPointError(ipt,0,fDriftSpeedErr[i]);
203 //______________________________________________________________________
204 void AliITSOnlineSDDInjectors::CalcTimeBinZero(){
205 // Get time zero from trigger signal
206 Double_t tzero=0.,intCont=0.,rmsPeak=0.;
207 Bool_t isTbUsed[256];
209 for(Int_t i=0;i<256;i++) isTbUsed[i]=0;
210 for(Int_t ian=0;ian<fgkNAnodes;ian++){
211 for(Int_t itb=1;itb<fTbMin[0];itb++){
212 Double_t cont=fHisto->GetBinContent(itb,ian+1);
213 Double_t contm1=fHisto->GetBinContent(itb+1,ian+1);
214 Double_t contp1=fHisto->GetBinContent(itb-1,ian+1);
215 if(cont>fLowThreshold){
216 if(contm1>fHighThreshold || cont>fHighThreshold || contp1>fHighThreshold){
217 tzero+=cont*float(itb);
218 rmsPeak+=cont*float(itb)*float(itb);
229 fTbZero=tzero/intCont;
230 fRMSTbZero=TMath::Sqrt(rmsPeak/intCont-fTbZero*fTbZero);
232 if(nTbUsed==1) fRMSTbZero=0.5;
234 //______________________________________________________________________
235 void AliITSOnlineSDDInjectors::FitDriftSpeedVsAnode(){
236 // fits the anode dependence of drift speed with a polynomial function
237 const Int_t kNn=fPolOrder+1;
238 Double_t **mat = new Double_t*[kNn];
239 for(Int_t i=0; i < kNn; i++) mat[i] = new Double_t[kNn];
240 Double_t *vect = new Double_t[kNn];
242 for(Int_t k1=0;k1<kNn;k1++){
244 for(Int_t k2=0;k2<kNn;k2++){
249 for(Int_t k1=0;k1<kNn;k1++){
250 for(Int_t jpad=fFirstPadForFit; jpad<=fLastPadForFit; jpad++){
251 Double_t x=(Double_t)GetAnodeNumber(jpad);
252 if(fDriftSpeed[jpad]>0 && GetInjPadStatus(jpad)>fPadStatusCutForFit){
253 vect[k1]+=fDriftSpeed[jpad]*TMath::Power(x,k1)/TMath::Power(fDriftSpeedErr[jpad],2);
255 for(Int_t k2=0;k2<kNn;k2++){
256 mat[k1][k2]+=TMath::Power(x,k1+k2)/TMath::Power(fDriftSpeedErr[jpad],2);
261 if(npts<fPolOrder+1){
262 if(fParam) delete [] fParam;
263 fParam=new Double_t[kNn];
264 for(Int_t i=0; i<kNn;i++)fParam[i]=0;
266 Int_t *iPivot = new Int_t[kNn];
267 Int_t *indxR = new Int_t[kNn];
268 Int_t *indxC = new Int_t[kNn];
269 for(Int_t i=0;i<kNn;i++) iPivot[i]=0;
270 Int_t iCol=-1,iRow=-1;
271 for(Int_t i=0;i<kNn;i++){
273 for(Int_t j=0;j<kNn;j++){
275 for(Int_t k=0;k<kNn;k++){
277 if(TMath::Abs(mat[j][k])>=big){
278 big=TMath::Abs(mat[j][k]);
289 for(Int_t l=0;l<kNn;l++){
291 mat[iRow][l]=mat[iCol][l];
295 vect[iRow]=vect[iCol];
300 if(mat[iCol][iCol]==0) break;
301 Double_t pivinv=1./mat[iCol][iCol];
303 for(Int_t l=0;l<kNn;l++) mat[iCol][l]*=pivinv;
305 for(Int_t m=0;m<kNn;m++){
309 for(Int_t n=0;n<kNn;n++) mat[m][n]-=mat[iCol][n]*aux;
310 vect[m]-=vect[iCol]*aux;
319 if(fParam) delete [] fParam;
320 fParam=new Double_t[kNn];
321 for(Int_t i=0; i<kNn;i++)fParam[i]=vect[i];
324 for(Int_t i=0; i < kNn; i++) delete [] mat[i];
328 //______________________________________________________________________
329 void AliITSOnlineSDDInjectors::CalcDriftSpeed(Int_t jpad){
331 Double_t sumY=0,sumX=0,sumXX=0,sumYY=0.,sumXY=0,sumWEI=0.;
333 Double_t y[kInjLines],ey[kInjLines];
334 Double_t tzero=0,erry=0;
335 for(Int_t i=0;i<kInjLines;i++){
336 y[i]=fCentroid[jpad][i];
337 ey[i]=fRMSCentroid[jpad][i];
339 for(Int_t i=0;i<kInjLines;i++){
340 if(fGoodInj[jpad][i] && ey[i]!=0){
341 sumY+=y[i]/ey[i]/ey[i];
342 sumX+=fPosition[i]/ey[i]/ey[i];
343 sumXX+=fPosition[i]*fPosition[i]/ey[i]/ey[i];
344 sumYY+=y[i]*y[i]/ey[i]/ey[i];
345 sumXY+=fPosition[i]*y[i]/ey[i]/ey[i];
346 sumWEI+=1./ey[i]/ey[i];
347 tzero=fTbZero/ey[i]/ey[i];
348 erry=ey[i]/ey[i]/ey[i];
352 Double_t slope=0.,eslope=0.;
354 slope=(sumY-tzero)/sumX;
358 if(fUseTimeZeroSignal){
359 sumY+=fTbZero/fRMSTbZero/fRMSTbZero;
362 sumYY+=fTbZero*fTbZero/fRMSTbZero/fRMSTbZero;
364 sumWEI+=1./fRMSTbZero/fRMSTbZero;
366 slope=(sumWEI*sumXY-sumY*sumX)/(sumWEI*sumXX-sumX*sumX);
367 eslope=TMath::Sqrt(sumWEI/(sumWEI*sumXX-sumX*sumX));
370 Double_t vel=0,evel=0;
371 if(slope!=0. && fTimeStep>0.){
372 vel=1./slope*10000./fTimeStep;// micron/ns
373 evel=eslope/slope/slope*10000./fTimeStep;// micron/ns
375 if(vel>fMaxDriftSpeed||vel<fMinDriftSpeed || evel>fMaxDriftSpeedErr){
379 fDriftSpeed[jpad]=vel;
380 fDriftSpeedErr[jpad]=evel;
382 //______________________________________________________________________
383 Int_t AliITSOnlineSDDInjectors::GetAnodeNumber(Int_t iInjPad) const{
384 // Injectors location along anodes:
385 // Side left (UP) - channel 0: injectors on anodes 0,7,15,...,247,255
386 // Side right (DOWN) - channel 1: injectors on anodes 0,8,16,...,248,255
388 if(iInjPad>=kInjPads) return ian;
389 if(fSide==1){ // right side
391 if(iInjPad==32) ian--;
394 if(iInjPad==0) ian=0;
398 //______________________________________________________________________
399 Int_t AliITSOnlineSDDInjectors::GetInjPadNumberFromAnode(Int_t nAnode) const{
402 if(fSide==1){ // right side
403 if(nAnode%8==0) iInjPad=nAnode/8;
404 if(nAnode==255) iInjPad=32;
406 if(nAnode%8==7) iInjPad=1+nAnode/8;
407 if(nAnode==0) iInjPad=0;
409 if(nAnode>=256) iInjPad=-1;
412 //______________________________________________________________________
413 Int_t AliITSOnlineSDDInjectors::GetInjPadStatus(Int_t jpad) const{
414 // returns an integer value with status of injector lines for given pad/anode
415 // status=7 --> 111 all injector are good
416 // status=6 --> 110 1st line (close to anodes) is bad, other two are good
418 // status=1 --> 001 only 1st line (close to anodes) good
419 // status=0 --> 000 all lines are bad
421 if(jpad>=0 && jpad<kInjPads){
422 for(Int_t jlin=0;jlin<kInjLines;jlin++) istatus+=fGoodInj[jpad][jlin]<<jlin;
426 //______________________________________________________________________
427 void AliITSOnlineSDDInjectors::FindGoodInjectors(){
429 for(Int_t jpad=0;jpad<kInjPads;jpad++){
430 Int_t ian=GetAnodeNumber(jpad);
431 for(Int_t jlin=0;jlin<kInjLines;jlin++){
432 for(Int_t jjj=fTbMin[jlin];jjj<fTbMax[jlin];jjj++){
433 Float_t c1=fHisto->GetBinContent(jjj,ian+1);
434 Float_t c2=fHisto->GetBinContent(jjj+1,ian+1);
435 // Float_t c3=fHisto->GetBinContent(jjj+2,ian+1);
436 if(c1>fLowThreshold && c2>fLowThreshold){
437 if(c1>fHighThreshold || c2>fHighThreshold){
438 fGoodInj[jpad][jlin]=1;
446 //______________________________________________________________________
447 void AliITSOnlineSDDInjectors::FindCentroids(){
449 for(Int_t jpad=0;jpad<kInjPads;jpad++){
450 Int_t ian=GetAnodeNumber(jpad);
451 for(Int_t jlin=0;jlin<kInjLines;jlin++){
452 if(!fGoodInj[jpad][jlin]) continue;
455 for(Int_t jjj=fTbMin[jlin];jjj<fTbMax[jlin];jjj++){
456 Double_t cont=fHisto->GetBinContent(jjj,ian+1);
465 Double_t cont=fHisto->GetBinContent(jjj,ian+1);
466 if(cont<fLowThreshold) break;
467 if(cont<fgkSaturation){
468 fCentroid[jpad][jlin]+=cont*(Double_t)jjj;
469 fRMSCentroid[jpad][jlin]+=cont*(Double_t)jjj*(Double_t)jjj;
476 Double_t cont=fHisto->GetBinContent(jjj,ian+1);
477 if(cont<fLowThreshold) break;
478 if(cont<fgkSaturation){
479 fCentroid[jpad][jlin]+=cont*float(jjj);
480 fRMSCentroid[jpad][jlin]+=cont*(Double_t)jjj*(Double_t)jjj;
486 fCentroid[jpad][jlin]/=intCont;
487 fRMSCentroid[jpad][jlin]=TMath::Sqrt(fRMSCentroid[jpad][jlin]/intCont-fCentroid[jpad][jlin]*fCentroid[jpad][jlin])/TMath::Sqrt(intCont);
490 fCentroid[jpad][jlin]=0.;
491 fRMSCentroid[jpad][jlin]=0.;
492 fGoodInj[jpad][jlin]=0;
494 if(fRMSCentroid[jpad][jlin]==0) fGoodInj[jpad][jlin]=0;
498 //______________________________________________________________________
499 void AliITSOnlineSDDInjectors::PrintInjectorStatus(){
501 for(Int_t jpad=0;jpad<kInjPads;jpad++){
502 printf("Line%d-Anode%d: %d %d %d\n",jpad,GetAnodeNumber(jpad),fGoodInj[jpad][0],fGoodInj[jpad][1],fGoodInj[jpad][2]);
505 //______________________________________________________________________
506 void AliITSOnlineSDDInjectors::PrintCentroids(){
508 for(Int_t jpad=0;jpad<kInjPads;jpad++){
509 printf("Line%d-Anode%d: %f+-%f %f+-%f %f+-%f\n",jpad,GetAnodeNumber(jpad),fCentroid[jpad][0],fRMSCentroid[jpad][0],fCentroid[jpad][1],fRMSCentroid[jpad][1],fCentroid[jpad][2],fRMSCentroid[jpad][2]);
512 //______________________________________________________________________
513 void AliITSOnlineSDDInjectors::WriteToASCII(Int_t evNumb, UInt_t timeStamp, Int_t optAppend){
515 Char_t outfilnam[100];
516 sprintf(outfilnam,"SDDinj_ddl%02dc%02d_sid%d.data",fDDL,fCarlos,fSide);
519 outf=fopen(outfilnam,"w");
520 fprintf(outf,"%d\n",fPolOrder);
522 else outf=fopen(outfilnam,"a");
523 fprintf(outf,"%d %d ",evNumb,timeStamp);
524 for(Int_t ic=0;ic<fPolOrder+1;ic++){
525 fprintf(outf,"%G ",fParam[ic]);
530 //______________________________________________________________________
531 TH1F* AliITSOnlineSDDInjectors::GetMeanDriftSpeedVsPadHisto() const{
533 sprintf(hisnam,"hdrsp%02dc%02ds%d",fDDL,fCarlos,fSide);
534 TH1F* h=new TH1F(hisnam,"",kInjPads,-0.5,kInjPads-0.5);
536 for(Int_t i=0;i<kInjPads;i++){
537 h->SetBinContent(i+1,GetMeanDriftSpeed(i));
538 Double_t rms=GetRMSDriftSpeed(i);
540 if(rms>0.) err=rms/TMath::Sqrt(fNEvents);
541 h->SetBinError(i+1,err);
546 //______________________________________________________________________
547 Bool_t AliITSOnlineSDDInjectors::WriteToROOT(TFile *fil) const {
550 AliWarning("Invalid pointer to ROOT file");
555 sprintf(hisnam,"hdrsp%02dc%02ds%d",fDDL,fCarlos,fSide);
556 TH1F hdsp(hisnam,"",kInjPads,-0.5,kInjPads-0.5);
558 AliWarning("Zero analyzed events");
562 for(Int_t i=0;i<kInjPads;i++){
563 hdsp.SetBinContent(i+1,GetMeanDriftSpeed(i));
564 Double_t rms=GetRMSDriftSpeed(i);
566 if(rms>0.) err=rms/TMath::Sqrt(fNEvents);
567 hdsp.SetBinError(i+1,err);