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::fgkJitterTB = 8.;
34 //______________________________________________________________________
35 AliITSOnlineSDDInjectors::AliITSOnlineSDDInjectors():AliITSOnlineSDD(),fHisto(),fTbZero(0.),fParam(),fPolOrder(0),fMinDriftVel(0.),fMaxDriftVel(0.),fThreshold(0.)
37 // default constructor
47 //______________________________________________________________________
48 AliITSOnlineSDDInjectors::AliITSOnlineSDDInjectors(Int_t mod, Int_t sid):AliITSOnlineSDD(mod,sid),fHisto(),fTbZero(0.),fParam(),fPolOrder(0),fMinDriftVel(0.),fMaxDriftVel(0.),fThreshold(0.)
50 // standard constructor
60 //______________________________________________________________________
61 AliITSOnlineSDDInjectors::~AliITSOnlineSDDInjectors(){
63 if(fHisto) delete fHisto;
64 if(fParam) delete [] fParam;
66 //______________________________________________________________________
67 void AliITSOnlineSDDInjectors::SetPositions(){
69 Float_t kLinFromCenterUm[3]={31860.,17460.,660.};
70 Float_t kAnodeFromCenterUm=35085;
71 for(Int_t i=0;i<3;i++){
72 fPosition[i]=kAnodeFromCenterUm-kLinFromCenterUm[i];
73 fPosition[i]/=10000.; // from microns to cm
76 //______________________________________________________________________
77 void AliITSOnlineSDDInjectors::Reset(){
79 for(Int_t i=0;i<kNInjectors;i++){
83 for(Int_t i=0;i<kNInjectors;i++){
84 for(Int_t j=0;j<3;j++){
87 fRMSCentroid[i][j]=0.;
91 //______________________________________________________________________
92 void AliITSOnlineSDDInjectors::AnalyzeEvent(TH2F* his){
99 for(Int_t j=0;j<kNInjectors;j++) CalcDriftVelocity(j);
100 FitDriftVelocityVsAnode();
102 //______________________________________________________________________
103 TGraphErrors* AliITSOnlineSDDInjectors::GetLineGraph(Int_t jlin){
105 Float_t x[4],y[4],ex[4],ey[4];
110 for(Int_t i=0;i<3;i++){
113 y[i+1]=fCentroid[jlin][i];
114 ey[i+1]=fRMSCentroid[jlin][i];
116 TGraphErrors *g=new TGraphErrors(4,x,y,ex,ey);
119 //______________________________________________________________________
120 Float_t AliITSOnlineSDDInjectors::GetDriftCoordinate(Float_t cAnode, Float_t cTimeBin){
123 for(Int_t i=0;i<=fPolOrder;i++) vel+=fParam[i]*TMath::Power(cAnode,(Float_t)i);
124 return vel*(cTimeBin-(fTbZero-fgkJitterTB))*25/1000.;
126 //______________________________________________________________________
127 TGraphErrors* AliITSOnlineSDDInjectors::GetDriftVelocityGraph() const{
130 TGraphErrors *g=new TGraphErrors(0);
131 for(Int_t i=0;i<kNInjectors;i++){
133 g->SetPoint(ipt,GetAnodeNumber(i),fDriftVel[i]);
134 g->SetPointError(ipt,0,fSigmaDriftVel[i]);
140 //______________________________________________________________________
141 void AliITSOnlineSDDInjectors::CalcTimeBinZero(){
143 Float_t tzero=0.,intCont=0.;
144 for(Int_t ian=0;ian<fgkNAnodes;ian++){
145 for(Int_t itb=1;itb<fTbMin[0];itb++){
146 Float_t cont=fHisto->GetBinContent(itb,ian+1);
148 tzero+=cont*float(itb);
153 if(intCont>0) fTbZero=tzero/intCont;
155 //______________________________________________________________________
156 void AliITSOnlineSDDInjectors::FitDriftVelocityVsAnode(){
157 const Int_t nn=fPolOrder+1;
158 Float_t **mat = new Float_t*[nn];
159 for(Int_t i=0; i < nn; i++) mat[i] = new Float_t[nn];
160 Float_t *vect = new Float_t[nn];
161 for(Int_t k1=0;k1<nn;k1++){
163 for(Int_t k2=0;k2<nn;k2++){
165 for(Int_t n=0; n<kNInjectors;n++){
166 Float_t x=(Float_t)GetAnodeNumber(n);
167 if(fDriftVel[n]>0) mat[k1][k2]+=TMath::Power(x,k1+k2)/TMath::Power(fSigmaDriftVel[n],2);
171 for(Int_t k1=0;k1<nn;k1++){
172 for(Int_t n=0; n<kNInjectors;n++){
173 Float_t x=(Float_t)GetAnodeNumber(n);
174 if(fDriftVel[n]>0) vect[k1]+=fDriftVel[n]*TMath::Power(x,k1)/TMath::Power(fSigmaDriftVel[n],2);
177 Int_t *iPivot = new Int_t[nn];
178 Int_t *indxR = new Int_t[nn];
179 Int_t *indxC = new Int_t[nn];
180 for(Int_t i=0;i<nn;i++) iPivot[i]=0;
181 Int_t iCol=-1,iRow=-1;
182 for(Int_t i=0;i<nn;i++){
184 for(Int_t j=0;j<nn;j++){
186 for(Int_t k=0;k<nn;k++){
188 if(TMath::Abs(mat[j][k])>=big){
189 big=TMath::Abs(mat[j][k]);
200 for(Int_t l=0;l<nn;l++){
202 mat[iRow][l]=mat[iCol][l];
206 vect[iRow]=vect[iCol];
211 if(mat[iCol][iCol]==0) break;
212 Float_t pivinv=1./mat[iCol][iCol];
214 for(Int_t l=0;l<nn;l++) mat[iCol][l]*=pivinv;
216 for(Int_t m=0;m<nn;m++){
220 for(Int_t n=0;n<nn;n++) mat[m][n]-=mat[iCol][n]*aux;
221 vect[m]-=vect[iCol]*aux;
229 if(fParam) delete [] fParam;
230 fParam=new Float_t[nn];
231 for(Int_t i=0; i<nn;i++)fParam[i]=vect[i];
233 for(Int_t i=0; i < nn; i++) delete [] mat[i];
237 //______________________________________________________________________
238 void AliITSOnlineSDDInjectors::CalcDriftVelocity(Int_t jlin){
240 Float_t sumY=0,sumX=0,sumXX=0,sumYY=0.,sumXY=0,sumWEI=0.;
243 Float_t tzero=0,erry=0;
244 for(Int_t i=0;i<3;i++){
245 y[i]=fCentroid[jlin][i];
246 ey[i]=fRMSCentroid[jlin][i];
248 for(Int_t i=0;i<3;i++){
249 if(fGoodInj[jlin][i]){
250 sumY+=y[i]/ey[i]/ey[i];
251 sumX+=fPosition[i]/ey[i]/ey[i];
252 sumXX+=fPosition[i]*fPosition[i]/ey[i]/ey[i];
253 sumYY+=y[i]*y[i]/ey[i]/ey[i];
254 sumXY+=fPosition[i]*y[i]/ey[i]/ey[i];
255 sumWEI+=1./ey[i]/ey[i];
256 tzero=fTbZero/ey[i]/ey[i];
261 Float_t vel=0,evel=0;
263 Float_t slope=(sumWEI*sumXY-sumY*sumX)/(sumWEI*sumXX-sumX*sumX);
264 Float_t eslope=TMath::Sqrt(sumWEI/(sumWEI*sumXX-sumX*sumX));
265 vel=1./slope*10000./25.;// micron/ns
266 evel=eslope/slope/slope*10000./25.;// micron/ns
269 Float_t slope=(sumY-tzero)/sumX;
270 Float_t eslope=erry/sumX;
271 vel=1./slope*10000./25.;// micron/ns
272 evel=eslope/slope/slope*10000./25.;// micron/ns
274 if(vel>fMaxDriftVel||vel<fMinDriftVel){
279 fSigmaDriftVel[jlin]=evel;
281 //______________________________________________________________________
282 Int_t AliITSOnlineSDDInjectors::GetAnodeNumber(Int_t iInjLine) const{
285 if(iInjLine>32) return ian;
288 if(iInjLine==32) ian--;
291 if(iInjLine==0) ian=0;
296 //______________________________________________________________________
297 void AliITSOnlineSDDInjectors::FindGoodInjectors(){
299 for(Int_t iii=0;iii<kNInjectors;iii++){
300 Int_t ian=GetAnodeNumber(iii);
301 for(Int_t ninj=0;ninj<3;ninj++){
302 for(Int_t jjj=fTbMin[ninj];jjj<fTbMax[ninj];jjj++){
303 Float_t c1=fHisto->GetBinContent(jjj,ian+1);
304 Float_t c2=fHisto->GetBinContent(jjj+1,ian+1);
305 Float_t c3=fHisto->GetBinContent(jjj+2,ian+1);
306 if(c1>fThreshold && c2>fThreshold && c3>fThreshold){
307 fGoodInj[iii][ninj]=1;
311 // for(Int_t jjj=fTbMin[ninj];jjj<fTbMax[ninj];jjj++){
312 // Float_t c1=fHisto->GetBinContent(jjj,ian+1);
313 // if(c1>=fgkSaturation){
314 // fGoodInj[iii][ninj]=0;
321 //______________________________________________________________________
322 void AliITSOnlineSDDInjectors::FindCentroids(){
324 for(Int_t iii=0;iii<kNInjectors;iii++){
325 Int_t ian=GetAnodeNumber(iii);
326 for(Int_t ninj=0;ninj<3;ninj++){
327 if(!fGoodInj[iii][ninj]) continue;
330 for(Int_t jjj=fTbMin[ninj];jjj<fTbMax[ninj];jjj++){
331 Float_t cont=fHisto->GetBinContent(jjj,ian+1);
340 Float_t cont=fHisto->GetBinContent(jjj,ian+1);
341 if(cont<fThreshold) break;
342 if(cont<fgkSaturation){
343 fCentroid[iii][ninj]+=cont*(Float_t)jjj;
344 fRMSCentroid[iii][ninj]+=cont*TMath::Power((Float_t)jjj,2);
351 Float_t cont=fHisto->GetBinContent(jjj,ian+1);
352 if(cont<fThreshold) break;
353 if(cont<fgkSaturation){
354 fCentroid[iii][ninj]+=cont*float(jjj);
355 fRMSCentroid[iii][ninj]+=cont*TMath::Power((Float_t)jjj,2);
361 fCentroid[iii][ninj]/=intCont;
362 fRMSCentroid[iii][ninj]=TMath::Sqrt(fRMSCentroid[iii][ninj]/intCont-fCentroid[iii][ninj]*fCentroid[iii][ninj]);
365 fCentroid[iii][ninj]=0.;
366 fRMSCentroid[iii][ninj]=0.;
367 fGoodInj[iii][ninj]=0;
369 if(fRMSCentroid[iii][ninj]==0) fGoodInj[iii][ninj]=0;
373 //______________________________________________________________________
374 void AliITSOnlineSDDInjectors::PrintInjMap(){
376 for(Int_t iii=0;iii<kNInjectors;iii++){
377 printf("Line%d-Anode%d: %d %d %d\n",iii,GetAnodeNumber(iii),fGoodInj[iii][0],fGoodInj[iii][1],fGoodInj[iii][2]);
380 //______________________________________________________________________
381 void AliITSOnlineSDDInjectors::PrintCentroids(){
383 for(Int_t iii=0;iii<kNInjectors;iii++){
384 printf("Line%d-Anode%d: %f+-%f %f+-%f %f+-%f\n",iii,GetAnodeNumber(iii),fCentroid[iii][0],fRMSCentroid[iii][0],fCentroid[iii][1],fRMSCentroid[iii][1],fCentroid[iii][2],fRMSCentroid[iii][2]);
387 //______________________________________________________________________
388 void AliITSOnlineSDDInjectors::WriteToASCII(Int_t evNumb, UInt_t timeStamp, Int_t optAppend){
390 Char_t outfilnam[100];
391 sprintf(outfilnam,"SDDinj_mod%03d_sid%d.data",fModuleId,fSide);
393 if(optAppend==0) outf=fopen(outfilnam,"w");
394 else outf=fopen(outfilnam,"a");
395 fprintf(outf,"%d %d ",evNumb,timeStamp);
396 for(Int_t ic=0;ic<fPolOrder+1;ic++){
397 fprintf(outf,"%G ",fParam[ic]);