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 **************************************************************************/
15 #include "AliITSOnlineSDDInjectors.h"
17 #include <TGraphErrors.h>
22 ///////////////////////////////////////////////////////////////////
24 // Implementation of the class used for SDD injector analysis //
25 // Origin: F.Prino, Torino, prino@to.infn.it //
27 ///////////////////////////////////////////////////////////////////
29 ClassImp(AliITSOnlineSDDInjectors)
31 const Float_t AliITSOnlineSDDInjectors::fgkSaturation = 1008.;
32 const Float_t AliITSOnlineSDDInjectors::fgkDefaultLThreshold = 5.;
33 const Float_t AliITSOnlineSDDInjectors::fgkDefaultHThreshold = 25.;
34 const Float_t AliITSOnlineSDDInjectors::fgkDefaultMinSpeed = 5.5;
35 const Float_t AliITSOnlineSDDInjectors::fgkDefaultMaxSpeed = 9.0;
36 const Float_t AliITSOnlineSDDInjectors::fgkDefaultMaxErr = 1.5;
37 const Int_t AliITSOnlineSDDInjectors::fgkDefaultPolOrder = 3;
38 const Float_t AliITSOnlineSDDInjectors::fgkDefaultTimeStep = 50.;
39 const UShort_t AliITSOnlineSDDInjectors::fgkDefaultTbMin[kInjLines] = {10,50,100};
40 const UShort_t AliITSOnlineSDDInjectors::fgkDefaultTbMax[kInjLines] = {20,70,120};
42 //______________________________________________________________________
43 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)
45 // default constructor
48 SetTimeStep(fgkDefaultTimeStep);
50 //______________________________________________________________________
51 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)
53 // standard constructor
56 SetTimeStep(fgkDefaultTimeStep);
58 //______________________________________________________________________
59 AliITSOnlineSDDInjectors::~AliITSOnlineSDDInjectors(){
61 // fHisto should not be deleted here because it points to an histo created
62 // by the external code which calls the method AnalyzeEvent
63 // if(fHisto) delete fHisto;
64 if(fParam) delete [] fParam;
66 //______________________________________________________________________
67 void AliITSOnlineSDDInjectors::SetDefaults(){
68 for(Int_t i=0;i<kInjLines;i++)
69 SetInjLineRange(i,fgkDefaultTbMin[i],fgkDefaultTbMax[i]);
70 SetThresholds(fgkDefaultLThreshold,fgkDefaultHThreshold);
71 SetPolOrder(fgkDefaultPolOrder);
72 SetMinDriftSpeed(fgkDefaultMinSpeed);
73 SetMaxDriftSpeed(fgkDefaultMaxSpeed);
74 SetMaxDriftSpeedErr(fgkDefaultMaxErr);
75 SetFitLimits(1,kInjPads-2); // exclude first and last pad
76 SetPadStatusCutForFit();
78 //______________________________________________________________________
79 void AliITSOnlineSDDInjectors::SetPositions(){
81 Double_t xLinFromCenterUm[kInjLines]={31860.,17460.,660.};
82 Double_t xAnodeFromCenterUm=35085;
83 for(Int_t i=0;i<kInjLines;i++){
84 fPosition[i]=xAnodeFromCenterUm-xLinFromCenterUm[i];
85 fPosition[i]/=10000.; // from microns to cm
88 //______________________________________________________________________
89 void AliITSOnlineSDDInjectors::Reset(){
91 for(Int_t i=0;i<kInjPads;i++){
95 for(Int_t i=0;i<kInjPads;i++){
96 for(Int_t j=0;j<kInjLines;j++){
99 fRMSCentroid[i][j]=0.;
103 //______________________________________________________________________
104 void AliITSOnlineSDDInjectors::AnalyzeEvent(TH2F* his){
111 for(Int_t j=0;j<kInjPads;j++) CalcDriftSpeed(j);
112 FitDriftSpeedVsAnode();
114 //______________________________________________________________________
115 void AliITSOnlineSDDInjectors::AddEvent(TH2F* his){
116 // Add the drift speed from current event to the average value
118 for(Int_t i=0;i<kInjPads;i++){
119 fSumDriftSpeed[i]=0.;
120 fSumSqDriftSpeed[i]=0.;
128 for(Int_t j=0;j<kInjPads;j++){
130 fSumDriftSpeed[j]+=fDriftSpeed[j];
131 fSumSqDriftSpeed[j]+=fDriftSpeed[j]*fDriftSpeed[j];
135 //______________________________________________________________________
136 Double_t AliITSOnlineSDDInjectors::GetRMSDriftSpeed(Int_t ipad) const {
138 if(fNEvents<=1) return 0.;
139 Double_t mean=fSumDriftSpeed[ipad]/(Double_t)fNEvents;
140 Double_t diff=fSumSqDriftSpeed[ipad]/(Double_t)fNEvents-mean*mean;
142 return TMath::Sqrt(diff);
145 //______________________________________________________________________
146 void AliITSOnlineSDDInjectors::FitMeanDriftSpeedVsAnode(){
148 if(fNEvents==0) return;
149 for(Int_t i=0;i<kInjPads;i++){
150 fDriftSpeed[i]=GetMeanDriftSpeed(i);
152 Double_t rms=GetRMSDriftSpeed(i);
153 if(rms>0.) fDriftSpeedErr[i]=rms/TMath::Sqrt(fNEvents);
156 FitDriftSpeedVsAnode();
158 //______________________________________________________________________
159 TGraphErrors* AliITSOnlineSDDInjectors::GetTimeVsDistGraph(Int_t jpad) const{
161 const Int_t kPts=kInjLines+1;
162 Float_t x[kPts],y[kPts],ex[kPts],ey[kPts];
167 for(Int_t i=0;i<kInjLines;i++){
170 y[i+1]=fCentroid[jpad][i];
171 ey[i+1]=fRMSCentroid[jpad][i];
173 TGraphErrors *g=new TGraphErrors(4,x,y,ex,ey);
177 //______________________________________________________________________
178 TGraphErrors* AliITSOnlineSDDInjectors::GetDriftSpeedGraph() const{
181 TGraphErrors *g=new TGraphErrors(0);
182 for(Int_t i=0;i<kInjPads;i++){
183 if(fDriftSpeed[i]>0){
184 g->SetPoint(ipt,GetAnodeNumber(i),fDriftSpeed[i]);
185 g->SetPointError(ipt,0,fDriftSpeedErr[i]);
191 //______________________________________________________________________
192 TGraphErrors* AliITSOnlineSDDInjectors::GetSelectedDriftSpeedGraph(Int_t minAcceptStatus) const{
193 // TGraphErrors with only pads with status of injector >= minAcceptStatus
195 TGraphErrors *g=new TGraphErrors(0);
196 for(Int_t i=0;i<kInjPads;i++){
197 Int_t padStatus = GetInjPadStatus(i);
198 if(fDriftSpeed[i]>0 && padStatus >= minAcceptStatus ){
199 g->SetPoint(ipt,GetAnodeNumber(i),fDriftSpeed[i]);
200 g->SetPointError(ipt,0,fDriftSpeedErr[i]);
206 //______________________________________________________________________
207 void AliITSOnlineSDDInjectors::CalcTimeBinZero(){
208 // Get time zero from trigger signal
209 Double_t tzero=0.,intCont=0.,rmsPeak=0.;
210 Bool_t isTbUsed[256];
212 for(Int_t i=0;i<256;i++) isTbUsed[i]=0;
213 for(Int_t ian=0;ian<fgkNAnodes;ian++){
214 for(Int_t itb=1;itb<fTbMin[0];itb++){
215 Double_t cont=fHisto->GetBinContent(itb,ian+1);
216 Double_t contm1=fHisto->GetBinContent(itb+1,ian+1);
217 Double_t contp1=fHisto->GetBinContent(itb-1,ian+1);
218 if(cont>fLowThreshold){
219 if(contm1>fHighThreshold || cont>fHighThreshold || contp1>fHighThreshold){
220 tzero+=cont*float(itb);
221 rmsPeak+=cont*float(itb)*float(itb);
232 fTbZero=tzero/intCont;
233 fRMSTbZero=TMath::Sqrt(rmsPeak/intCont-fTbZero*fTbZero);
235 if(nTbUsed==1) fRMSTbZero=0.5;
237 //______________________________________________________________________
238 void AliITSOnlineSDDInjectors::FitDriftSpeedVsAnode(){
239 // fits the anode dependence of drift speed with a polynomial function
240 const Int_t kNn=fPolOrder+1;
241 Double_t **mat = new Double_t*[kNn];
242 for(Int_t i=0; i < kNn; i++) mat[i] = new Double_t[kNn];
243 Double_t *vect = new Double_t[kNn];
245 for(Int_t k1=0;k1<kNn;k1++){
247 for(Int_t k2=0;k2<kNn;k2++){
252 for(Int_t k1=0;k1<kNn;k1++){
253 for(Int_t jpad=fFirstPadForFit; jpad<=fLastPadForFit; jpad++){
254 Double_t x=(Double_t)GetAnodeNumber(jpad);
255 if(fDriftSpeed[jpad]>0 && GetInjPadStatus(jpad)>fPadStatusCutForFit){
256 vect[k1]+=fDriftSpeed[jpad]*TMath::Power(x,k1)/TMath::Power(fDriftSpeedErr[jpad],2);
258 for(Int_t k2=0;k2<kNn;k2++){
259 mat[k1][k2]+=TMath::Power(x,k1+k2)/TMath::Power(fDriftSpeedErr[jpad],2);
264 if(npts<fPolOrder+1){
265 if(fParam) delete [] fParam;
266 fParam=new Double_t[kNn];
267 for(Int_t i=0; i<kNn;i++)fParam[i]=0;
269 Int_t *iPivot = new Int_t[kNn];
270 Int_t *indxR = new Int_t[kNn];
271 Int_t *indxC = new Int_t[kNn];
272 for(Int_t i=0;i<kNn;i++) iPivot[i]=0;
273 Int_t iCol=-1,iRow=-1;
274 for(Int_t i=0;i<kNn;i++){
276 for(Int_t j=0;j<kNn;j++){
278 for(Int_t k=0;k<kNn;k++){
280 if(TMath::Abs(mat[j][k])>=big){
281 big=TMath::Abs(mat[j][k]);
292 for(Int_t l=0;l<kNn;l++){
294 mat[iRow][l]=mat[iCol][l];
298 vect[iRow]=vect[iCol];
303 if(mat[iCol][iCol]==0) break;
304 Double_t pivinv=1./mat[iCol][iCol];
306 for(Int_t l=0;l<kNn;l++) mat[iCol][l]*=pivinv;
308 for(Int_t m=0;m<kNn;m++){
312 for(Int_t n=0;n<kNn;n++) mat[m][n]-=mat[iCol][n]*aux;
313 vect[m]-=vect[iCol]*aux;
322 if(fParam) delete [] fParam;
323 fParam=new Double_t[kNn];
324 for(Int_t i=0; i<kNn;i++)fParam[i]=vect[i];
327 for(Int_t i=0; i < kNn; i++) delete [] mat[i];
331 //______________________________________________________________________
332 void AliITSOnlineSDDInjectors::CalcDriftSpeed(Int_t jpad){
334 Double_t sumY=0,sumX=0,sumXX=0,sumYY=0.,sumXY=0,sumWEI=0.;
336 Double_t y[kInjLines],ey[kInjLines];
337 Double_t tzero=0,erry=0;
338 for(Int_t i=0;i<kInjLines;i++){
339 y[i]=fCentroid[jpad][i];
340 ey[i]=fRMSCentroid[jpad][i];
342 for(Int_t i=0;i<kInjLines;i++){
343 if(fGoodInj[jpad][i] && ey[i]!=0){
344 sumY+=y[i]/ey[i]/ey[i];
345 sumX+=fPosition[i]/ey[i]/ey[i];
346 sumXX+=fPosition[i]*fPosition[i]/ey[i]/ey[i];
347 sumYY+=y[i]*y[i]/ey[i]/ey[i];
348 sumXY+=fPosition[i]*y[i]/ey[i]/ey[i];
349 sumWEI+=1./ey[i]/ey[i];
350 tzero=fTbZero/ey[i]/ey[i];
351 erry=ey[i]/ey[i]/ey[i];
355 Double_t slope=0.,eslope=0.;
357 slope=(sumY-tzero)/sumX;
361 if(fUseTimeZeroSignal){
362 sumY+=fTbZero/fRMSTbZero/fRMSTbZero;
365 sumYY+=fTbZero*fTbZero/fRMSTbZero/fRMSTbZero;
367 sumWEI+=1./fRMSTbZero/fRMSTbZero;
369 slope=(sumWEI*sumXY-sumY*sumX)/(sumWEI*sumXX-sumX*sumX);
370 eslope=TMath::Sqrt(sumWEI/(sumWEI*sumXX-sumX*sumX));
373 Double_t vel=0,evel=0;
374 if(slope!=0. && fTimeStep>0.){
375 vel=1./slope*10000./fTimeStep;// micron/ns
376 evel=eslope/slope/slope*10000./fTimeStep;// micron/ns
378 if(vel>fMaxDriftSpeed||vel<fMinDriftSpeed || evel>fMaxDriftSpeedErr){
382 fDriftSpeed[jpad]=vel;
383 fDriftSpeedErr[jpad]=evel;
385 //______________________________________________________________________
386 Int_t AliITSOnlineSDDInjectors::GetAnodeNumber(Int_t iInjPad) const{
387 // Injectors location along anodes:
388 // Side left (UP) - channel 0: injectors on anodes 0,7,15,...,247,255
389 // Side right (DOWN) - channel 1: injectors on anodes 0,8,16,...,248,255
391 if(iInjPad>=kInjPads) return ian;
392 if(fSide==1){ // right side
394 if(iInjPad==32) ian--;
397 if(iInjPad==0) ian=0;
401 //______________________________________________________________________
402 Int_t AliITSOnlineSDDInjectors::GetInjPadNumberFromAnode(Int_t nAnode) const{
405 if(fSide==1){ // right side
406 if(nAnode%8==0) iInjPad=nAnode/8;
407 if(nAnode==255) iInjPad=32;
409 if(nAnode%8==7) iInjPad=1+nAnode/8;
410 if(nAnode==0) iInjPad=0;
412 if(nAnode>=256) iInjPad=-1;
415 //______________________________________________________________________
416 Int_t AliITSOnlineSDDInjectors::GetInjPadStatus(Int_t jpad) const{
417 // returns an integer value with status of injector lines for given pad/anode
418 // status=7 --> 111 all injector are good
419 // status=6 --> 110 1st line (close to anodes) is bad, other two are good
421 // status=1 --> 001 only 1st line (close to anodes) good
422 // status=0 --> 000 all lines are bad
424 if(jpad>=0 && jpad<kInjPads){
425 for(Int_t jlin=0;jlin<kInjLines;jlin++) istatus+=fGoodInj[jpad][jlin]<<jlin;
429 //______________________________________________________________________
430 void AliITSOnlineSDDInjectors::FindGoodInjectors(){
432 for(Int_t jpad=0;jpad<kInjPads;jpad++){
433 Int_t ian=GetAnodeNumber(jpad);
434 for(Int_t jlin=0;jlin<kInjLines;jlin++){
435 for(Int_t jjj=fTbMin[jlin];jjj<fTbMax[jlin];jjj++){
436 Float_t c1=fHisto->GetBinContent(jjj,ian+1);
437 Float_t c2=fHisto->GetBinContent(jjj+1,ian+1);
438 // Float_t c3=fHisto->GetBinContent(jjj+2,ian+1);
439 if(c1>fLowThreshold && c2>fLowThreshold){
440 if(c1>fHighThreshold || c2>fHighThreshold){
441 fGoodInj[jpad][jlin]=1;
449 //______________________________________________________________________
450 void AliITSOnlineSDDInjectors::FindCentroids(){
452 for(Int_t jpad=0;jpad<kInjPads;jpad++){
453 Int_t ian=GetAnodeNumber(jpad);
454 for(Int_t jlin=0;jlin<kInjLines;jlin++){
455 if(!fGoodInj[jpad][jlin]) continue;
458 for(Int_t jjj=fTbMin[jlin];jjj<fTbMax[jlin];jjj++){
459 Double_t cont=fHisto->GetBinContent(jjj,ian+1);
468 Double_t cont=fHisto->GetBinContent(jjj,ian+1);
469 if(cont<fLowThreshold) break;
470 if(cont<fgkSaturation){
471 fCentroid[jpad][jlin]+=cont*(Double_t)jjj;
472 fRMSCentroid[jpad][jlin]+=cont*(Double_t)jjj*(Double_t)jjj;
479 Double_t cont=fHisto->GetBinContent(jjj,ian+1);
480 if(cont<fLowThreshold) break;
481 if(cont<fgkSaturation){
482 fCentroid[jpad][jlin]+=cont*float(jjj);
483 fRMSCentroid[jpad][jlin]+=cont*(Double_t)jjj*(Double_t)jjj;
489 fCentroid[jpad][jlin]/=intCont;
490 fRMSCentroid[jpad][jlin]=TMath::Sqrt(fRMSCentroid[jpad][jlin]/intCont-fCentroid[jpad][jlin]*fCentroid[jpad][jlin])/TMath::Sqrt(intCont);
493 fCentroid[jpad][jlin]=0.;
494 fRMSCentroid[jpad][jlin]=0.;
495 fGoodInj[jpad][jlin]=0;
497 if(fRMSCentroid[jpad][jlin]==0) fGoodInj[jpad][jlin]=0;
501 //______________________________________________________________________
502 void AliITSOnlineSDDInjectors::PrintInjectorStatus(){
504 for(Int_t jpad=0;jpad<kInjPads;jpad++){
505 printf("Line%d-Anode%d: %d %d %d\n",jpad,GetAnodeNumber(jpad),fGoodInj[jpad][0],fGoodInj[jpad][1],fGoodInj[jpad][2]);
508 //______________________________________________________________________
509 void AliITSOnlineSDDInjectors::PrintCentroids(){
511 for(Int_t jpad=0;jpad<kInjPads;jpad++){
512 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]);
515 //______________________________________________________________________
516 void AliITSOnlineSDDInjectors::WriteToASCII(Int_t evNumb, UInt_t timeStamp, Int_t optAppend){
518 Char_t outfilnam[100];
519 sprintf(outfilnam,"SDDinj_ddl%02dc%02d_sid%d.data",fDDL,fCarlos,fSide);
522 outf=fopen(outfilnam,"w");
523 fprintf(outf,"%d\n",fPolOrder);
525 else outf=fopen(outfilnam,"a");
526 fprintf(outf,"%d %d ",evNumb,timeStamp);
527 for(Int_t ic=0;ic<fPolOrder+1;ic++){
528 fprintf(outf,"%G ",fParam[ic]);