ITS/AliITSClusterFinderSDD.cxx

   1 /**************************************************************************
   2  * Copyright(c) 1998-1999, 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   $Id$
  17  */
  18 ///////////////////////////////////////////////////////////////////////////
  19 //  Cluster finder                                                       //
  20 //  for Silicon                                                          //
  21 //  Drift Detector                                                       //
  22 //////////////////////////////////////////////////////////////////////////
  23
  24
  25 #include "AliITSClusterFinderSDD.h"
  26 #include "AliITSMapA1.h"
  27 #include "AliITSRawClusterSDD.h"
  28 #include "AliITSRecPoint.h"
  29 #include "AliITSdigitSDD.h"
  30 #include "AliITSDetTypeRec.h"
  31 #include "AliITSCalibrationSDD.h"
  32 #include "AliITSsegmentationSDD.h"
  33 #include "AliLog.h"
  34
  35 ClassImp(AliITSClusterFinderSDD)
  36
  37 //______________________________________________________________________
  38 AliITSClusterFinderSDD::AliITSClusterFinderSDD():
  39 AliITSClusterFinder(),
  40 fNclusters(0),
  41 fDAnode(0.0),
  42 fDTime(0.0),
  43 fTimeCorr(0.0),
  44 fCutAmplitude(0),
  45 fMinPeak(0),
  46 fMinCharge(0),
  47 fMinNCells(0),
  48 fMaxNCells(0){
  49     // default constructor
  50 }
  51 //______________________________________________________________________
  52 AliITSClusterFinderSDD::AliITSClusterFinderSDD(AliITSDetTypeRec* dettyp,
  53                                                TClonesArray *digits,
  54                                                TClonesArray *recp):
  55 AliITSClusterFinder(dettyp),
  56 fNclusters(0),
  57 fDAnode(0.0),
  58 fDTime(0.0),
  59 fTimeCorr(0.0),
  60 fCutAmplitude(0),
  61 fMinPeak(0),
  62 fMinCharge(0),
  63 fMinNCells(0),
  64 fMaxNCells(0){
  65     // standard constructor
  66
  67     SetDigits(digits);
  68     SetClusters(recp);
  69     SetCutAmplitude(fDetTypeRec->GetITSgeom()->GetStartSDD());
  70     SetDAnode();
  71     SetDTime();
  72     SetMinPeak((Int_t)((AliITSCalibrationSDD*)GetResp(fDetTypeRec->GetITSgeom()->GetStartSDD()))->GetNoiseAfterElectronics(0)*5);
  73     SetMinNCells();
  74     SetMaxNCells();
  75     SetTimeCorr();
  76     SetMinCharge();
  77     SetMap(new AliITSMapA1(GetSeg(),Digits(),fCutAmplitude));
  78 }
  79 //______________________________________________________________________
  80 void AliITSClusterFinderSDD::SetCutAmplitude(Int_t mod,Double_t nsigma){
  81     // set the signal threshold for cluster finder
  82     Double_t baseline,noiseAfterEl;
  83
  84
  85     Int_t nanodes = GetResp(mod)->Wings()*GetResp(mod)->Channels()*GetResp(mod)->Chips();
  86     fCutAmplitude.Set(nanodes);
  87     for(Int_t ian=0;ian<nanodes;ian++){
  88       baseline=GetResp(mod)->GetBaseline(ian);
  89       noiseAfterEl = ((AliITSCalibrationSDD*)GetResp(mod))->GetNoiseAfterElectronics(ian);
  90       fCutAmplitude[ian] = (Int_t)((baseline + nsigma*noiseAfterEl));
  91     }
  92 }
  93 //______________________________________________________________________
  94 void AliITSClusterFinderSDD::Find1DClusters(){
  95     // find 1D clusters
  96
  97     // retrieve the parameters
  98     Int_t fNofMaps       = GetSeg()->Npz();
  99     Int_t fMaxNofSamples = GetSeg()->Npx();
 100     Int_t fNofAnodes     = fNofMaps/2;
 101     Int_t dummy          = 0;
 102     Double_t fTimeStep    = GetSeg()->Dpx(dummy);
 103     Double_t fSddLength   = GetSeg()->Dx();
 104     Double_t fDriftSpeed  = GetResp(fModule)->GetDriftSpeed();
 105     Double_t anodePitch   = GetSeg()->Dpz(dummy);
 106
 107     // map the signal
 108     Map()->ClearMap();
 109     Map()->SetThresholdArr(fCutAmplitude);
 110     Map()->FillMap2();
 111
 112     Int_t nofFoundClusters = 0;
 113     Int_t i;
 114     Double_t **dfadc = new Double_t*[fNofAnodes];
 115     for(i=0;i<fNofAnodes;i++) dfadc[i] = new Double_t[fMaxNofSamples];
 116     Double_t fadc  = 0.;
 117     Double_t fadc1 = 0.;
 118     Double_t fadc2 = 0.;
 119     Int_t j,k,idx,l,m;
 120     for(j=0;j<2;j++) {
 121         for(k=0;k<fNofAnodes;k++) {
 122             idx = j*fNofAnodes+k;
 123             // signal (fadc) & derivative (dfadc)
 124             dfadc[k][255]=0.;
 125             for(l=0; l<fMaxNofSamples; l++) {
 126                 fadc2=(Double_t)Map()->GetSignal(idx,l);
 127                 if(l>0) fadc1=(Double_t)Map()->GetSignal(idx,l-1);
 128                 if(l>0) dfadc[k][l-1] = fadc2-fadc1;
 129             } // samples
 130         } // anodes
 131
 132         for(k=0;k<fNofAnodes;k++) {
 133             AliDebug(5,Form("Anode: %d, Wing: %d",k+1,j+1));
 134             idx = j*fNofAnodes+k;
 135             Int_t imax  = 0;
 136             Int_t imaxd = 0;
 137             Int_t it    = 0;
 138             while(it <= fMaxNofSamples-3) {
 139                 imax  = it;
 140                 imaxd = it;
 141                 // maximum of signal
 142                 Double_t fadcmax  = 0.;
 143                 Double_t dfadcmax = 0.;
 144                 Int_t lthrmina   = 1;
 145                 Int_t lthrmint   = 3;
 146                 Int_t lthra      = 1;
 147                 Int_t lthrt      = 0;
 148                 for(m=0;m<20;m++) {
 149                     Int_t id = it+m;
 150                     if(id>=fMaxNofSamples) break;
 151                     fadc=(float)Map()->GetSignal(idx,id);
 152                     if(fadc > fadcmax) { fadcmax = fadc; imax = id;}
 153                     if(fadc > (float)fCutAmplitude[idx])lthrt++;
 154                     if(dfadc[k][id] > dfadcmax) {
 155                         dfadcmax = dfadc[k][id];
 156                         imaxd    = id;
 157                     } // end if
 158                 } // end for m
 159                 it = imaxd;
 160                 if(Map()->TestHit(idx,imax) == kEmpty) {it++; continue;}
 161                 // cluster charge
 162                 Int_t tstart = it-2;
 163                 if(tstart < 0) tstart = 0;
 164                 Bool_t ilcl = 0;
 165                 if(lthrt >= lthrmint && lthra >= lthrmina) ilcl = 1;
 166                 if(ilcl) {
 167                     nofFoundClusters++;
 168                     Int_t tstop      = tstart;
 169                     Double_t dfadcmin = 10000.;
 170                     Int_t ij;
 171                     for(ij=0; ij<20; ij++) {
 172                         if(tstart+ij > 255) { tstop = 255; break; }
 173                         fadc=(float)Map()->GetSignal(idx,tstart+ij);
 174                         if((dfadc[k][tstart+ij] < dfadcmin) &&
 175                            (fadc > fCutAmplitude[idx])) {
 176                             tstop = tstart+ij+5;
 177                             if(tstop > 255) tstop = 255;
 178                             dfadcmin = dfadc[k][it+ij];
 179                         } // end if
 180                     } // end for ij
 181
 182                     Double_t clusterCharge = 0.;
 183                     Double_t clusterAnode  = k+0.5;
 184                     Double_t clusterTime   = 0.;
 185                     Int_t   clusterMult   = 0;
 186                     Double_t clusterPeakAmplitude = 0.;
 187                     Int_t its,peakpos     = -1;
 188                     //Double_t n, baseline;
 189                     //GetResp(fModule)->GetNoiseParam(n,baseline);
 190                     Double_t baseline=GetResp(fModule)->GetBaseline(idx);
 191                     for(its=tstart; its<=tstop; its++) {
 192                         fadc=(float)Map()->GetSignal(idx,its);
 193                         if(fadc>baseline) fadc -= baseline;
 194                         else fadc = 0.;
 195                         clusterCharge += fadc;
 196                         // as a matter of fact we should take the peak
 197                         // pos before FFT
 198                         // to get the list of tracks !!!
 199                         if(fadc > clusterPeakAmplitude) {
 200                             clusterPeakAmplitude = fadc;
 201                             //peakpos=Map()->GetHitIndex(idx,its);
 202                             Int_t shift = (int)(fTimeCorr/fTimeStep);
 203                             if(its>shift && its<(fMaxNofSamples-shift))
 204                                 peakpos  = Map()->GetHitIndex(idx,its+shift);
 205                             else peakpos = Map()->GetHitIndex(idx,its);
 206                             if(peakpos<0) peakpos =Map()->GetHitIndex(idx,its);
 207                         } // end if
 208                         clusterTime += fadc*its;
 209                         if(fadc > 0) clusterMult++;
 210                         if(its == tstop) {
 211                             clusterTime /= (clusterCharge/fTimeStep);   // ns
 212                             if(clusterTime>fTimeCorr) clusterTime -=fTimeCorr;
 213                             //ns
 214                         } // end if
 215                     } // end for its
 216
 217                     Double_t clusteranodePath = (clusterAnode - fNofAnodes/2)*
 218                                                  anodePitch;
 219                     Double_t clusterDriftPath = clusterTime*fDriftSpeed;
 220                     clusterDriftPath = fSddLength-clusterDriftPath;
 221                     if(clusterCharge <= 0.) break;
 222                     AliITSRawClusterSDD clust(j+1,//i
 223                                               clusterAnode,clusterTime,//ff
 224                                               clusterCharge, //f
 225                                               clusterPeakAmplitude, //f
 226                                               peakpos, //i
 227                                               0.,0.,clusterDriftPath,//fff
 228                                               clusteranodePath, //f
 229                                               clusterMult, //i
 230                                               0,0,0,0,0,0,0);//7*i
 231                     fDetTypeRec->AddCluster(1,&clust);
 232                     it = tstop;
 233                 } // ilcl
 234                 it++;
 235             } // while (samples)
 236         } // anodes
 237     } // detectors (2)
 238
 239     for(i=0;i<fNofAnodes;i++) delete[] dfadc[i];
 240     delete [] dfadc;
 241
 242     return;
 243 }
 244 //______________________________________________________________________
 245 void AliITSClusterFinderSDD::Find1DClustersE(){
 246     // find 1D clusters
 247     // retrieve the parameters
 248     Int_t fNofMaps = GetSeg()->Npz();
 249     Int_t fMaxNofSamples = GetSeg()->Npx();
 250     Int_t fNofAnodes = fNofMaps/2;
 251     Int_t dummy=0;
 252     Double_t fTimeStep = GetSeg()->Dpx( dummy );
 253     Double_t fSddLength = GetSeg()->Dx();
 254     Double_t fDriftSpeed = GetResp(fModule)->GetDriftSpeed();
 255     Double_t anodePitch = GetSeg()->Dpz( dummy );
 256
 257     Map()->ClearMap();
 258     Map()->SetThresholdArr( fCutAmplitude );
 259     Map()->FillMap2();
 260
 261     Int_t nClu = 0;
 262     //        cout << "Search  cluster... "<< endl;
 263     for( Int_t j=0; j<2; j++ ){
 264         for( Int_t k=0; k<fNofAnodes; k++ ){
 265             Int_t idx = j*fNofAnodes+k;
 266             Double_t baseline=GetResp(fModule)->GetBaseline(idx);
 267             Bool_t on = kFALSE;
 268             Int_t start = 0;
 269             Int_t nTsteps = 0;
 270             Double_t fmax = 0.;
 271             Int_t lmax = 0;
 272             Double_t charge = 0.;
 273             Double_t time = 0.;
 274             Double_t anode = k+0.5;
 275             Int_t peakpos = -1;
 276             for( Int_t l=0; l<fMaxNofSamples; l++ ){
 277                 Double_t fadc = (Double_t)Map()->GetSignal( idx, l );
 278                 if( fadc > 0.0 ){
 279                     if( on == kFALSE && l<fMaxNofSamples-4){
 280                         // star RawCluster (reset var.)
 281                         Double_t fadc1 = (Double_t)Map()->GetSignal( idx, l+1 );
 282                         if( fadc1 < fadc ) continue;
 283                         start = l;
 284                         fmax = 0.;
 285                         lmax = 0;
 286                         time = 0.;
 287                         charge = 0.;
 288                         on = kTRUE;
 289                         nTsteps = 0;
 290                     } // end if on...
 291                     nTsteps++ ;
 292                     if( fadc > baseline ) fadc -= baseline;
 293                     else fadc=0.;
 294                     charge += fadc;
 295                     time += fadc*l;
 296                     if( fadc > fmax ){
 297                         fmax = fadc;
 298                         lmax = l;
 299                         Int_t shift = (Int_t)(fTimeCorr/fTimeStep + 0.5);
 300                         if( l > shift && l < (fMaxNofSamples-shift) )
 301                             peakpos = Map()->GetHitIndex( idx, l+shift );
 302                         else
 303                             peakpos = Map()->GetHitIndex( idx, l );
 304                         if( peakpos < 0) peakpos = Map()->GetHitIndex(idx,l);
 305                     } // end if fadc
 306                 }else{ // end fadc>0
 307                     if( on == kTRUE ){
 308                         if( nTsteps > 2 ){
 309                             //  min # of timesteps for a RawCluster
 310                             // Found a RawCluster...
 311                             Int_t stop = l-1;
 312                             time /= (charge/fTimeStep);   // ns
 313                                 // time = lmax*fTimeStep;   // ns
 314                             if( time > fTimeCorr ) time -= fTimeCorr;   // ns
 315                             Double_t anodePath =(anode-fNofAnodes/2)*anodePitch;
 316                             Double_t driftPath = time*fDriftSpeed;
 317                             driftPath = fSddLength-driftPath;
 318                             AliITSRawClusterSDD clust(j+1,anode,time,charge,
 319                                                       fmax, peakpos,0.,0.,
 320                                                       driftPath,anodePath,
 321                                                       nTsteps,start,stop,
 322                                                       start, stop, 1, k, k );
 323                             fDetTypeRec->AddCluster( 1, &clust );
 324                             if(AliDebugLevel()>=5) clust.PrintInfo();
 325                             nClu++;
 326                         } // end if nTsteps
 327                         on = kFALSE;
 328                     } // end if on==kTRUE
 329                 } // end if fadc>0
 330             } // samples
 331         } // anodes
 332     } // wings
 333     AliDebug(3,Form("# Rawclusters %d",nClu));
 334     return;
 335 }
 336 //_______________________________________________________________________
 337 Int_t AliITSClusterFinderSDD::SearchPeak(Double_t *spect,Int_t xdim,Int_t zdim,
 338                                          Int_t *peakX, Int_t *peakZ,
 339                                          Double_t *peakAmp, Double_t minpeak ){
 340     // search peaks on a 2D cluster
 341     Int_t npeak = 0;    // # peaks
 342     Int_t i,j;
 343     // search peaks
 344     for( Int_t z=1; z<zdim-1; z++ ){
 345         for( Int_t x=1; x<xdim-2; x++ ){
 346             Double_t sxz = spect[x*zdim+z];
 347             Double_t sxz1 = spect[(x+1)*zdim+z];
 348             Double_t sxz2 = spect[(x-1)*zdim+z];
 349             // search a local max. in s[x,z]
 350             if( sxz < minpeak || sxz1 <= 0 || sxz2 <= 0 ) continue;
 351             if( sxz >= spect[(x+1)*zdim+z  ] && sxz >= spect[(x-1)*zdim+z  ] &&
 352                 sxz >= spect[x*zdim    +z+1] && sxz >= spect[x*zdim    +z-1] &&
 353                 sxz >= spect[(x+1)*zdim+z+1] && sxz >= spect[(x+1)*zdim+z-1] &&
 354                 sxz >= spect[(x-1)*zdim+z+1] && sxz >= spect[(x-1)*zdim+z-1] ){
 355                 // peak found
 356                 peakX[npeak] = x;
 357                 peakZ[npeak] = z;
 358                 peakAmp[npeak] = sxz;
 359                 npeak++;
 360             } // end if ....
 361         } // end for x
 362     } // end for z
 363     // search groups of peaks with same amplitude.
 364     Int_t *flag = new Int_t[npeak];
 365     for( i=0; i<npeak; i++ ) flag[i] = 0;
 366     for( i=0; i<npeak; i++ ){
 367         for( j=0; j<npeak; j++ ){
 368             if( i==j) continue;
 369             if( flag[j] > 0 ) continue;
 370             if( peakAmp[i] == peakAmp[j] &&
 371                 TMath::Abs(peakX[i]-peakX[j])<=1 &&
 372                 TMath::Abs(peakZ[i]-peakZ[j])<=1 ){
 373                 if( flag[i] == 0) flag[i] = i+1;
 374                 flag[j] = flag[i];
 375             } // end if ...
 376         } // end for j
 377     } // end for i
 378     // make average of peak groups
 379     for( i=0; i<npeak; i++ ){
 380         Int_t nFlag = 1;
 381         if( flag[i] <= 0 ) continue;
 382         for( j=0; j<npeak; j++ ){
 383             if( i==j ) continue;
 384             if( flag[j] != flag[i] ) continue;
 385             peakX[i] += peakX[j];
 386             peakZ[i] += peakZ[j];
 387             nFlag++;
 388             npeak--;
 389             for( Int_t k=j; k<npeak; k++ ){
 390                 peakX[k] = peakX[k+1];
 391                 peakZ[k] = peakZ[k+1];
 392                 peakAmp[k] = peakAmp[k+1];
 393                 flag[k] = flag[k+1];
 394             } // end for k
 395             j--;
 396         } // end for j
 397         if( nFlag > 1 ){
 398             peakX[i] /= nFlag;
 399             peakZ[i] /= nFlag;
 400         } // end fi nFlag
 401     } // end for i
 402     delete [] flag;
 403     return( npeak );
 404 }
 405 //______________________________________________________________________
 406 void AliITSClusterFinderSDD::PeakFunc( Int_t xdim, Int_t zdim, Double_t *par,
 407                                        Double_t *spe, Double_t *integral){
 408     // function used to fit the clusters
 409     // par -> parameters..
 410     // par[0]  number of peaks.
 411     // for each peak i=1, ..., par[0]
 412     //                 par[i] = Ampl.
 413     //                 par[i+1] = xpos
 414     //                 par[i+2] = zpos
 415     //                 par[i+3] = tau
 416     //                 par[i+4] = sigma.
 417     Int_t electronics = GetResp(fModule)->GetElectronics(); // 1 = PASCAL, 2 = OLA
 418     const Int_t knParam = 5;
 419     Int_t npeak = (Int_t)par[0];
 420
 421     memset( spe, 0, sizeof( Double_t )*zdim*xdim );
 422
 423     Int_t k = 1;
 424     for( Int_t i=0; i<npeak; i++ ){
 425         if( integral != 0 ) integral[i] = 0.;
 426         Double_t sigmaA2 = par[k+4]*par[k+4]*2.;
 427         Double_t t2 = par[k+3];   // PASCAL
 428         if( electronics == 2 ) { t2 *= t2; t2 *= 2; } // OLA
 429         for( Int_t z=0; z<zdim; z++ ){
 430             for( Int_t x=0; x<xdim; x++ ){
 431                 Double_t z2 = (z-par[k+2])*(z-par[k+2])/sigmaA2;
 432                 Double_t x2 = 0.;
 433                 Double_t signal = 0.;
 434                 if( electronics == 1 ){ // PASCAL
 435                     x2 = (x-par[k+1]+t2)/t2;
 436                     signal = (x2>0.) ? par[k]*x2*exp(-x2+1.-z2) :0.0; // RCCR2
 437                 //  signal =(x2>0.) ? par[k]*x2*x2*exp(-2*x2+2.-z2 ):0.0;//RCCR
 438                 }else if( electronics == 2 ) { // OLA
 439                     x2 = (x-par[k+1])*(x-par[k+1])/t2;
 440                     signal = par[k]  * exp( -x2 - z2 );
 441                 } else {
 442                     Warning("PeakFunc","Wrong SDD Electronics = %d",
 443                             electronics);
 444                     // exit( 1 );
 445                 } // end if electronicx
 446                 spe[x*zdim+z] += signal;
 447                 if( integral != 0 ) integral[i] += signal;
 448             } // end for x
 449         } // end for z
 450         k += knParam;
 451     } // end for i
 452     return;
 453 }
 454 //__________________________________________________________________________
 455 Double_t AliITSClusterFinderSDD::ChiSqr( Int_t xdim, Int_t zdim, Double_t *spe,
 456                                         Double_t *speFit ) const{
 457     // EVALUATES UNNORMALIZED CHI-SQUARED
 458     Double_t chi2 = 0.;
 459     for( Int_t z=0; z<zdim; z++ ){
 460         for( Int_t x=1; x<xdim-1; x++ ){
 461             Int_t index = x*zdim+z;
 462             Double_t tmp = spe[index] - speFit[index];
 463             chi2 += tmp*tmp;
 464         } // end for x
 465     } // end for z
 466     return( chi2 );
 467 }
 468 //_______________________________________________________________________
 469 void AliITSClusterFinderSDD::Minim( Int_t xdim, Int_t zdim, Double_t *param,
 470                                     Double_t *prm0,Double_t *steprm,
 471                                     Double_t *chisqr,Double_t *spe,
 472                                     Double_t *speFit ){
 473     //
 474     Int_t   k, nnn, mmm, i;
 475     Double_t p1, delta, d1, chisq1, p2, chisq2, t, p3, chisq3, a, b, p0, chisqt;
 476     const Int_t knParam = 5;
 477     Int_t npeak = (Int_t)param[0];
 478     for( k=1; k<(npeak*knParam+1); k++ ) prm0[k] = param[k];
 479     for( k=1; k<(npeak*knParam+1); k++ ){
 480         p1 = param[k];
 481         delta = steprm[k];
 482         d1 = delta;
 483         // ENSURE THAT STEP SIZE IS SENSIBLY LARGER THAN MACHINE ROUND OFF
 484         if( TMath::Abs( p1 ) > 1.0E-6 )
 485             if ( TMath::Abs( delta/p1 ) < 1.0E-4 ) delta = p1/1000;
 486             else  delta = (Double_t)1.0E-4;
 487         //  EVALUATE CHI-SQUARED AT FIRST TWO SEARCH POINTS
 488         PeakFunc( xdim, zdim, param, speFit );
 489         chisq1 = ChiSqr( xdim, zdim, spe, speFit );
 490         p2 = p1+delta;
 491         param[k] = p2;
 492         PeakFunc( xdim, zdim, param, speFit );
 493         chisq2 = ChiSqr( xdim, zdim, spe, speFit );
 494         if( chisq1 < chisq2 ){
 495             // REVERSE DIRECTION OF SEARCH IF CHI-SQUARED IS INCREASING
 496             delta = -delta;
 497             t = p1;
 498             p1 = p2;
 499             p2 = t;
 500             t = chisq1;
 501             chisq1 = chisq2;
 502             chisq2 = t;
 503         } // end if
 504         i = 1; nnn = 0;
 505         do {   // INCREMENT param(K) UNTIL CHI-SQUARED STARTS TO INCREASE
 506             nnn++;
 507             p3 = p2 + delta;
 508             mmm = nnn - (nnn/5)*5;  // multiplo de 5
 509             if( mmm == 0 ){
 510                 d1 = delta;
 511                 // INCREASE STEP SIZE IF STEPPING TOWARDS MINIMUM IS TOO SLOW
 512                 delta *= 5;
 513             } // end if
 514             param[k] = p3;
 515             // Constrain paramiters
 516             Int_t kpos = (k-1) % knParam;
 517             switch( kpos ){
 518             case 0 :
 519                 if( param[k] <= 20 ) param[k] = fMinPeak;
 520                 break;
 521             case 1 :
 522                 if( TMath::Abs( param[k] - prm0[k] ) > 1.5 ) param[k] = prm0[k];
 523                 break;
 524             case 2 :
 525                 if( TMath::Abs( param[k] - prm0[k] ) > 1. ) param[k] = prm0[k];
 526                 break;
 527             case 3 :
 528                 if( param[k] < .5 ) param[k] = .5;
 529                 break;
 530             case 4 :
 531                 if( param[k] < .288 ) param[k] = .288;// 1/sqrt(12) = 0.288
 532                 if( param[k] > zdim*.5 ) param[k] = zdim*.5;
 533                 break;
 534             }; // end switch
 535             PeakFunc( xdim, zdim, param, speFit );
 536             chisq3 = ChiSqr( xdim, zdim, spe, speFit );
 537             if( chisq3 < chisq2 && nnn < 50 ){
 538                 p1 = p2;
 539                 p2 = p3;
 540                 chisq1 = chisq2;
 541                 chisq2 = chisq3;
 542             }else i=0;
 543         } while( i );
 544         // FIND MINIMUM OF PARABOLA DEFINED BY LAST THREE POINTS
 545         a = chisq1*(p2-p3)+chisq2*(p3-p1)+chisq3*(p1-p2);
 546         b = chisq1*(p2*p2-p3*p3)+chisq2*(p3*p3-p1*p1)+chisq3*(p1*p1-p2*p2);
 547         if( a!=0 ) p0 = (Double_t)(0.5*b/a);
 548         else p0 = 10000;
 549         //--IN CASE OF NEARLY EQUAL CHI-SQUARED AND TOO SMALL STEP SIZE PREVENT
 550         //   ERRONEOUS EVALUATION OF PARABOLA MINIMUM
 551         //---NEXT TWO LINES CAN BE OMITTED FOR HIGHER PRECISION MACHINES
 552         //dp = (Double_t) max (TMath::Abs(p3-p2), TMath::Abs(p2-p1));
 553         //if( TMath::Abs( p2-p0 ) > dp ) p0 = p2;
 554         param[k] = p0;
 555         // Constrain paramiters
 556         Int_t kpos = (k-1) % knParam;
 557         switch( kpos ){
 558         case 0 :
 559             if( param[k] <= 20 ) param[k] = fMinPeak;
 560             break;
 561         case 1 :
 562             if( TMath::Abs( param[k] - prm0[k] ) > 1.5 ) param[k] = prm0[k];
 563             break;
 564         case 2 :
 565             if( TMath::Abs( param[k] - prm0[k] ) > 1. ) param[k] = prm0[k];
 566             break;
 567         case 3 :
 568             if( param[k] < .5 ) param[k] = .5;
 569             break;
 570         case 4 :
 571             if( param[k] < .288 ) param[k] = .288;  // 1/sqrt(12) = 0.288
 572             if( param[k] > zdim*.5 ) param[k] = zdim*.5;
 573             break;
 574         }; // end switch
 575         PeakFunc( xdim, zdim, param, speFit );
 576         chisqt = ChiSqr( xdim, zdim, spe, speFit );
 577         // DO NOT ALLOW ERRONEOUS INTERPOLATION
 578         if( chisqt <= *chisqr ) *chisqr = chisqt;
 579         else param[k] = prm0[k];
 580         // OPTIMIZE SEARCH STEP FOR EVENTUAL NEXT CALL OF MINIM
 581         steprm[k] = (param[k]-prm0[k])/5;
 582         if( steprm[k] >= d1 ) steprm[k] = d1/5;
 583     } // end for k
 584     // EVALUATE FIT AND CHI-SQUARED FOR OPTIMIZED PARAMETERS
 585     PeakFunc( xdim, zdim, param, speFit );
 586     *chisqr = ChiSqr( xdim, zdim, spe, speFit );
 587     return;
 588 }
 589 //_________________________________________________________________________
 590 Int_t AliITSClusterFinderSDD::NoLinearFit( Int_t xdim, Int_t zdim,
 591                                            Double_t *param, Double_t *spe,
 592                                            Int_t *niter, Double_t *chir ){
 593     // fit method from Comput. Phys. Commun 46(1987) 149
 594     const Double_t kchilmt = 0.01;  //        relative accuracy
 595     const Int_t   knel = 3;        //        for parabolic minimization
 596     const Int_t   knstop = 50;     //        Max. iteration number
 597     const Int_t   knParam = 5;
 598     Int_t npeak = (Int_t)param[0];
 599     // RETURN IF NUMBER OF DEGREES OF FREEDOM IS NOT POSITIVE
 600     if( (xdim*zdim - npeak*knParam) <= 0 ) return( -1 );
 601     Double_t degFree = (xdim*zdim - npeak*knParam)-1;
 602     Int_t   n, k, iterNum = 0;
 603     Double_t *prm0 = new Double_t[npeak*knParam+1];
 604     Double_t *step = new Double_t[npeak*knParam+1];
 605     Double_t *schi = new Double_t[npeak*knParam+1];
 606     Double_t *sprm[3];
 607     sprm[0] = new Double_t[npeak*knParam+1];
 608     sprm[1] = new Double_t[npeak*knParam+1];
 609     sprm[2] = new Double_t[npeak*knParam+1];
 610     Double_t  chi0, chi1, reldif, a, b, prmin, dp;
 611     Double_t *speFit = new Double_t[ xdim*zdim ];
 612     PeakFunc( xdim, zdim, param, speFit );
 613     chi0 = ChiSqr( xdim, zdim, spe, speFit );
 614     chi1 = chi0;
 615     for( k=1; k<(npeak*knParam+1); k++) prm0[k] = param[k];
 616         for( k=1 ; k<(npeak*knParam+1); k+=knParam ){
 617             step[k] = param[k] / 20.0 ;
 618             step[k+1] = param[k+1] / 50.0;
 619             step[k+2] = param[k+2] / 50.0;
 620             step[k+3] = param[k+3] / 20.0;
 621             step[k+4] = param[k+4] / 20.0;
 622         } // end for k
 623     Int_t out = 0;
 624     do{
 625         iterNum++;
 626             chi0 = chi1;
 627             Minim( xdim, zdim, param, prm0, step, &chi1, spe, speFit );
 628             reldif = ( chi1 > 0 ) ? ((Double_t) TMath::Abs( chi1-chi0)/chi1 ) : 0;
 629         // EXIT conditions
 630         if( reldif < (float) kchilmt ){
 631             *chir  = (chi1>0) ? (float) TMath::Sqrt (chi1/degFree) :0;
 632             *niter = iterNum;
 633             out = 0;
 634             break;
 635         } // end if
 636         if( (reldif < (float)(5*kchilmt)) && (iterNum > knstop) ){
 637             *chir = (chi1>0) ?(float) TMath::Sqrt (chi1/degFree):0;
 638             *niter = iterNum;
 639             out = 0;
 640             break;
 641         } // end if
 642         if( iterNum > 5*knstop ){
 643             *chir  = (chi1>0) ?(float) TMath::Sqrt (chi1/degFree):0;
 644             *niter = iterNum;
 645             out = 1;
 646             break;
 647         } // end if
 648         if( iterNum <= knel ) continue;
 649         n = iterNum - (iterNum/knel)*knel; // EXTRAPOLATION LIMIT COUNTER N
 650         if( n > 3 || n == 0 ) continue;
 651         schi[n-1] = chi1;
 652         for( k=1; k<(npeak*knParam+1); k++ ) sprm[n-1][k] = param[k];
 653         if( n != 3 ) continue;
 654         // -EVALUATE EXTRAPOLATED VALUE OF EACH PARAMETER BY FINDING MINIMUM OF
 655         //    PARABOLA DEFINED BY LAST THREE CALLS OF MINIM
 656         for( k=1; k<(npeak*knParam+1); k++ ){
 657             Double_t tmp0 = sprm[0][k];
 658             Double_t tmp1 = sprm[1][k];
 659             Double_t tmp2 = sprm[2][k];
 660             a  = schi[0]*(tmp1-tmp2) + schi[1]*(tmp2-tmp0);
 661             a += (schi[2]*(tmp0-tmp1));
 662             b  = schi[0]*(tmp1*tmp1-tmp2*tmp2);
 663             b += (schi[1]*(tmp2*tmp2-tmp0*tmp0)+(schi[2]*
 664                                              (tmp0*tmp0-tmp1*tmp1)));
 665             if ((double)a < 1.0E-6) prmin = 0;
 666             else prmin = (float) (0.5*b/a);
 667             dp = 5*(tmp2-tmp0);
 668             if( TMath::Abs(prmin-tmp2) > TMath::Abs(dp) ) prmin = tmp2+dp;
 669             param[k] = prmin;
 670             step[k]  = dp/10; // OPTIMIZE SEARCH STEP
 671         } // end for k
 672     } while( kTRUE );
 673     delete [] prm0;
 674     delete [] step;
 675     delete [] schi;
 676     delete [] sprm[0];
 677     delete [] sprm[1];
 678     delete [] sprm[2];
 679     delete [] speFit;
 680     return( out );
 681 }
 682
 683 //______________________________________________________________________
 684 void AliITSClusterFinderSDD::ResolveClusters(){
 685     // The function to resolve clusters if the clusters overlapping exists
 686     Int_t i;
 687     // get number of clusters for this module
 688     Int_t nofClusters = NClusters();
 689     nofClusters -= fNclusters;
 690     Int_t fNofMaps = GetSeg()->Npz();
 691     Int_t fNofAnodes = fNofMaps/2;
 692     //Int_t fMaxNofSamples = GetSeg()->Npx();
 693     Int_t dummy=0;
 694     Double_t fTimeStep = GetSeg()->Dpx( dummy );
 695     Double_t fSddLength = GetSeg()->Dx();
 696     Double_t fDriftSpeed = GetResp(fModule)->GetDriftSpeed();
 697     Double_t anodePitch = GetSeg()->Dpz( dummy );
 698     //Double_t n, baseline;
 699     //GetResp(fModule)->GetNoiseParam( n, baseline );
 700     Int_t electronics =GetResp(fModule)->GetElectronics(); // 1 = PASCAL, 2 = OLA
 701
 702     for( Int_t j=0; j<nofClusters; j++ ){
 703         // get cluster information
 704         AliITSRawClusterSDD *clusterJ=(AliITSRawClusterSDD*) Cluster(j);
 705         Int_t astart = clusterJ->Astart();
 706         Int_t astop = clusterJ->Astop();
 707         Int_t tstart = clusterJ->Tstartf();
 708         Int_t tstop = clusterJ->Tstopf();
 709         Int_t wing = (Int_t)clusterJ->W();
 710         if( wing == 2 ){
 711             astart += fNofAnodes;
 712             astop  += fNofAnodes;
 713         } // end if
 714         Int_t xdim = tstop-tstart+3;
 715         Int_t zdim = astop-astart+3;
 716         if( xdim > 50 || zdim > 30 ) {
 717             Warning("ResolveClusters","xdim: %d , zdim: %d ",xdim,zdim);
 718             continue;
 719         }
 720         Double_t *sp = new Double_t[ xdim*zdim+1 ];
 721         memset( sp, 0, sizeof(Double_t)*(xdim*zdim+1) );
 722
 723         // make a local map from cluster region
 724         for( Int_t ianode=astart; ianode<=astop; ianode++ ){
 725             for( Int_t itime=tstart; itime<=tstop; itime++ ){
 726                 Double_t fadc = Map()->GetSignal( ianode, itime );
 727                 Double_t baseline=GetResp(fModule)->GetBaseline(ianode);
 728                 if( fadc > baseline ) fadc -= (Double_t)baseline;
 729                 else fadc = 0.;
 730                 Int_t index = (itime-tstart+1)*zdim+(ianode-astart+1);
 731                 sp[index] = fadc;
 732             } // time loop
 733         } // anode loop
 734
 735         // search peaks on cluster
 736         const Int_t kNp = 150;
 737         Int_t peakX1[kNp];
 738         Int_t peakZ1[kNp];
 739         Double_t peakAmp1[kNp];
 740         Int_t npeak = SearchPeak(sp,xdim,zdim,peakX1,peakZ1,peakAmp1,fMinPeak);
 741
 742         // if multiple peaks, split cluster
 743         if( npeak >= 1 ){
 744             //        cout << "npeak " << npeak << endl;
 745             //        clusterJ->PrintInfo();
 746             Double_t *par = new Double_t[npeak*5+1];
 747             par[0] = (Double_t)npeak;
 748             // Initial parameters in cell dimentions
 749             Int_t k1 = 1;
 750             for( i=0; i<npeak; i++ ){
 751                 par[k1] = peakAmp1[i];
 752                 par[k1+1] = peakX1[i]; // local time pos. [timebin]
 753                 par[k1+2] = peakZ1[i]; // local anode pos. [anodepitch]
 754                 if( electronics == 1 ) par[k1+3] = 2.; // PASCAL
 755                 else if(electronics==2) par[k1+3] = 0.7;//tau [timebin] OLA
 756                 par[k1+4] = .4;    // sigma        [anodepich]
 757                 k1 += 5;
 758             } // end for i
 759             Int_t niter;
 760             Double_t chir;
 761             NoLinearFit( xdim, zdim, par, sp, &niter, &chir );
 762             Double_t peakX[kNp];
 763             Double_t peakZ[kNp];
 764             Double_t sigma[kNp];
 765             Double_t tau[kNp];
 766             Double_t peakAmp[kNp];
 767             Double_t integral[kNp];
 768             //get integrals => charge for each peak
 769             PeakFunc( xdim, zdim, par, sp, integral );
 770             k1 = 1;
 771             for( i=0; i<npeak; i++ ){
 772                 peakAmp[i] = par[k1];
 773                 peakX[i]   = par[k1+1];
 774                 peakZ[i]   = par[k1+2];
 775                 tau[i]     = par[k1+3];
 776                 sigma[i]   = par[k1+4];
 777                 k1+=5;
 778             } // end for i
 779             // calculate parameter for new clusters
 780             for( i=0; i<npeak; i++ ){
 781                 AliITSRawClusterSDD clusterI( *clusterJ );
 782
 783                 Int_t newAnode = peakZ1[i]-1 + astart;
 784
 785             //    Int_t newiTime = peakX1[i]-1 + tstart;
 786             //    Int_t shift = (Int_t)(fTimeCorr/fTimeStep + 0.5);
 787             //    if( newiTime > shift && newiTime < (fMaxNofSamples-shift) )
 788             //        shift = 0;
 789             //    Int_t peakpos = Map()->GetHitIndex(newAnode,newiTime+shift );
 790             //    clusterI.SetPeakPos( peakpos );
 791
 792                 clusterI.SetPeakAmpl( peakAmp1[i] );
 793                 Double_t newAnodef = peakZ[i] - 0.5 + astart;
 794                 Double_t newiTimef = peakX[i] - 1 + tstart;
 795                 if( wing == 2 ) newAnodef -= fNofAnodes;
 796                 Double_t anodePath = (newAnodef - fNofAnodes/2)*anodePitch;
 797                 newiTimef *= fTimeStep;
 798                 if( newiTimef > fTimeCorr ) newiTimef -= fTimeCorr;
 799                 if( electronics == 1 ){
 800                 //    newiTimef *= 0.999438;    // PASCAL
 801                 //    newiTimef += (6./fDriftSpeed - newiTimef/3000.);
 802                 }else if( electronics == 2 )
 803                     newiTimef *= 0.99714;    // OLA
 804
 805                 Int_t timeBin = (Int_t)(newiTimef/fTimeStep+0.5);
 806                 Int_t peakpos = Map()->GetHitIndex( newAnode, timeBin );
 807                 if( peakpos < 0 ) {
 808                     for( Int_t ii=0; ii<3; ii++ ) {
 809                         peakpos = Map()->GetHitIndex( newAnode, timeBin+ii );
 810                         if( peakpos > 0 ) break;
 811                         peakpos = Map()->GetHitIndex( newAnode, timeBin-ii );
 812                         if( peakpos > 0 ) break;
 813                     }
 814                 }
 815
 816                 if( peakpos < 0 ) {
 817                     //Warning("ResolveClusters",
 818                     //        "Digit not found for cluster");
 819                     //if(AliDebugLevel()>=3) clusterI.PrintInfo();
 820                    continue;
 821                 }
 822                 clusterI.SetPeakPos( peakpos );
 823                 Double_t driftPath = fSddLength - newiTimef * fDriftSpeed;
 824                 Double_t sign = ( wing == 1 ) ? -1. : 1.;
 825                 clusterI.SetX( driftPath*sign * 0.0001 );
 826                 clusterI.SetZ( anodePath * 0.0001 );
 827                 clusterI.SetAnode( newAnodef );
 828                 clusterI.SetTime( newiTimef );
 829                 clusterI.SetAsigma( sigma[i]*anodePitch );
 830                 clusterI.SetTsigma( tau[i]*fTimeStep );
 831                 clusterI.SetQ( integral[i] );
 832
 833                 fDetTypeRec->AddCluster( 1, &clusterI );
 834             } // end for i
 835             Clusters()->RemoveAt( j );
 836             delete [] par;
 837         } else {  // something odd
 838             Warning( "ResolveClusters",
 839                      "--- Peak not found!!!!  minpeak=%d ,cluster peak= %f"
 840                      " , module= %d",
 841                      fMinPeak, clusterJ->PeakAmpl(),GetModule());
 842             clusterJ->PrintInfo();
 843             Warning( "ResolveClusters"," xdim= %d zdim= %d", xdim-2, zdim-2 );
 844         }
 845         delete [] sp;
 846     } // cluster loop
 847     Clusters()->Compress();
 848 //    Map()->ClearMap();
 849 }
 850 //________________________________________________________________________
 851 void  AliITSClusterFinderSDD::GroupClusters(){
 852     // group clusters
 853     Int_t dummy=0;
 854     Double_t fTimeStep = GetSeg()->Dpx(dummy);
 855     // get number of clusters for this module
 856     Int_t nofClusters = NClusters();
 857     nofClusters -= fNclusters;
 858     AliITSRawClusterSDD *clusterI;
 859     AliITSRawClusterSDD *clusterJ;
 860     Int_t *label = new Int_t [nofClusters];
 861     Int_t i,j;
 862     for(i=0; i<nofClusters; i++) label[i] = 0;
 863     for(i=0; i<nofClusters; i++) {
 864         if(label[i] != 0) continue;
 865         for(j=i+1; j<nofClusters; j++) {
 866             if(label[j] != 0) continue;
 867             clusterI = (AliITSRawClusterSDD*) Cluster(i);
 868             clusterJ = (AliITSRawClusterSDD*) Cluster(j);
 869             // 1.3 good
 870             if(clusterI->T() < fTimeStep*60) fDAnode = 4.2;  // TB 3.2
 871             if(clusterI->T() < fTimeStep*10) fDAnode = 1.5;  // TB 1.
 872             Bool_t pair = clusterI->Brother(clusterJ,fDAnode,fDTime);
 873             if(!pair) continue;
 874             if(AliDebugLevel()>=4){
 875                 clusterI->PrintInfo();
 876                 clusterJ->PrintInfo();
 877             } // end if AliDebugLevel
 878             clusterI->Add(clusterJ);
 879             label[j] = 1;
 880             Clusters()->RemoveAt(j);
 881             j=i; // <- Ernesto
 882         } // J clusters
 883         label[i] = 1;
 884     } // I clusters
 885     Clusters()->Compress();
 886
 887     delete [] label;
 888     return;
 889 }
 890 //________________________________________________________________________
 891 void AliITSClusterFinderSDD::SelectClusters(){
 892     // get number of clusters for this module
 893     Int_t nofClusters = NClusters();
 894
 895     nofClusters -= fNclusters;
 896     Int_t i;
 897     for(i=0; i<nofClusters; i++) {
 898         AliITSRawClusterSDD *clusterI =(AliITSRawClusterSDD*) Cluster(i);
 899         Int_t rmflg = 0;
 900         Double_t wy = 0.;
 901         if(clusterI->Anodes() != 0.) {
 902             wy = ((Double_t) clusterI->Samples())/clusterI->Anodes();
 903         } // end if
 904         Int_t amp = (Int_t) clusterI->PeakAmpl();
 905         Int_t cha = (Int_t) clusterI->Q();
 906         if(amp < fMinPeak) rmflg = 1;
 907         if(cha < fMinCharge) rmflg = 1;
 908         if(wy < fMinNCells) rmflg = 1;
 909         //if(wy > fMaxNCells) rmflg = 1;
 910         if(rmflg) Clusters()->RemoveAt(i);
 911     } // I clusters
 912     Clusters()->Compress();
 913     return;
 914 }
 915
 916 //______________________________________________________________________
 917 void AliITSClusterFinderSDD::GetRecPoints(){
 918     // get rec points
 919
 920     // get number of clusters for this module
 921     Int_t nofClusters = NClusters();
 922     nofClusters -= fNclusters;
 923     const Double_t kconvGeV = 1.e-6; // GeV -> KeV
 924     const Double_t kconv = 1.0e-4;
 925     const Double_t kRMSx = 38.0*kconv; // microns->cm ITS TDR Table 1.3
 926     const Double_t kRMSz = 28.0*kconv; // microns->cm ITS TDR Table 1.3
 927     Int_t i;
 928     Int_t ix, iz, idx=-1;
 929     AliITSdigitSDD *dig=0;
 930     Int_t ndigits=NDigits();
 931
 932     Int_t lay,lad,det;
 933     fDetTypeRec->GetITSgeom()->GetModuleId(fModule,lay,lad,det);
 934     Int_t ind=(lad-1)*fDetTypeRec->GetITSgeom()->GetNdetectors(lay)+(det-1);
 935     Int_t lyr=(lay-1);
 936
 937
 938     for(i=0; i<nofClusters; i++) {
 939         AliITSRawClusterSDD *clusterI = (AliITSRawClusterSDD*)Cluster(i);
 940         if(!clusterI) Error("SDD: GetRecPoints","i clusterI ",i,clusterI);
 941         if(clusterI) idx=clusterI->PeakPos();
 942         if(idx>ndigits) Error("SDD: GetRecPoints","idx ndigits",idx,ndigits);
 943         // try peak neighbours - to be done
 944         if(idx&&idx<= ndigits) dig =(AliITSdigitSDD*)GetDigit(idx);
 945         if(!dig) {
 946             // try cog
 947             GetSeg()->GetPadIxz(clusterI->X(),clusterI->Z(),ix,iz);
 948             dig = (AliITSdigitSDD*)Map()->GetHit(iz-1,ix-1);
 949             // if null try neighbours
 950             if (!dig) dig = (AliITSdigitSDD*)Map()->GetHit(iz-1,ix);
 951             if (!dig) dig = (AliITSdigitSDD*)Map()->GetHit(iz-1,ix+1);
 952             if (!dig) printf("SDD: cannot assign the track number!\n");
 953         } //  end if !dig
 954         AliITSRecPoint rnew(fDetTypeRec->GetITSgeom());
 955         rnew.SetXZ(fModule,clusterI->X(),clusterI->Z());
 956         rnew.SetQ(clusterI->Q());   // in KeV - should be ADC
 957         rnew.SetdEdX(kconvGeV*clusterI->Q());
 958         rnew.SetSigmaDetLocX2(kRMSx*kRMSx);
 959         rnew.SetSigmaZ2(kRMSz*kRMSz);
 960
 961         if(dig) rnew.SetLabel(dig->GetTrack(0),0);
 962         if(dig) rnew.SetLabel(dig->GetTrack(1),1);
 963         if(dig) rnew.SetLabel(dig->GetTrack(2),2);
 964         rnew.SetDetectorIndex(ind);
 965         rnew.SetLayer(lyr);
 966         fDetTypeRec->AddRecPoint(rnew);
 967     } // I clusters
 968 //    Map()->ClearMap();
 969 }
 970 //______________________________________________________________________
 971 void AliITSClusterFinderSDD::FindRawClusters(Int_t mod){
 972     // find raw clusters
 973
 974     SetModule(mod);
 975     SetCutAmplitude(mod);
 976     Int_t nanodes=GetSeg()->Npz();
 977     Int_t noise=0;
 978     for(Int_t i=0;i<nanodes;i++){
 979       noise+=(Int_t)(((AliITSCalibrationSDD*)GetResp(mod))->GetNoiseAfterElectronics(i));
 980     }
 981     SetMinPeak((noise/nanodes)*5);
 982     Find1DClustersE();
 983     GroupClusters();
 984     SelectClusters();
 985     ResolveClusters();
 986     GetRecPoints();
 987 }
 988 //_______________________________________________________________________
 989 void AliITSClusterFinderSDD::PrintStatus() const{
 990     // Print SDD cluster finder Parameters
 991
 992     cout << "**************************************************" << endl;
 993     cout << " Silicon Drift Detector Cluster Finder Parameters " << endl;
 994     cout << "**************************************************" << endl;
 995     cout << "Number of Clusters: " << fNclusters << endl;
 996     cout << "Anode Tolerance: " << fDAnode << endl;
 997     cout << "Time  Tolerance: " << fDTime << endl;
 998     cout << "Time  correction (electronics): " << fTimeCorr << endl;
 999     cout << "Cut Amplitude (threshold): " << fCutAmplitude[0] << endl;
1000     cout << "Minimum Amplitude: " << fMinPeak << endl;
1001     cout << "Minimum Charge: " << fMinCharge << endl;
1002     cout << "Minimum number of cells/clusters: " << fMinNCells << endl;
1003     cout << "Maximum number of cells/clusters: " << fMaxNCells << endl;
1004     cout << "**************************************************" << endl;
1005 }