1 /**************************************************************************
2 * Copyright(c) 1998-1999, 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 **************************************************************************/
18 //_________________________________________________________________________
19 // Class for trigger analysis.
20 // Digits are grouped in TRU's (Trigger Units). A TRU consist of 16x28
21 // crystals ordered fNTRUPhi x fNTRUZ. The algorithm searches all possible
22 // 2x2 and nxn (n multiple of 4) crystal combinations per each TRU, adding the
23 // digits amplitude and finding the maximum. Maxima are transformed in ADC
24 // time samples. Each time bin is compared to the trigger threshold until it is larger
25 // and then, triggers are set. Thresholds need to be fixed.
28 // //Inside the event loop
29 // AliEMCALTrigger *tr = new AliEMCALTrigger();//Init Trigger
30 // tr->SetL0Threshold(100);
31 // tr->SetL1JetLowPtThreshold(1000);
32 // tr->SetL1JetHighPtThreshold(20000);
33 // tr->Trigger(); //Execute Trigger
34 // tr->Print(""); //Print result, with "deb" option all data members
37 //*-- Author: Gustavo Conesa & Yves Schutz (IFIC, CERN)
38 //////////////////////////////////////////////////////////////////////////////
41 // --- ROOT system ---
42 //#include "TMatrixD.h"
44 // --- ALIROOT system ---
46 #include "AliPHOSTrigger.h"
47 #include "AliPHOSGeometry.h"
48 #include "AliPHOSGetter.h"
49 #include "AliPHOSPulseGenerator.h"
50 #include "AliTriggerInput.h"
53 ClassImp(AliPHOSTrigger)
55 //______________________________________________________________________
56 AliPHOSTrigger::AliPHOSTrigger()
57 : AliTriggerDetector(),
58 f2x2MaxAmp(-1), f2x2CrystalPhi(-1), f2x2CrystalEta(-1), f2x2SM(0),
59 fnxnMaxAmp(-1), fnxnCrystalPhi(-1), fnxnCrystalEta(-1), fnxnSM(0),
60 fADCValuesHighnxn(0), fADCValuesLownxn(0),
61 fADCValuesHigh2x2(0), fADCValuesLow2x2(0), fDigitsList(0),
62 fL0Threshold(50), fL1JetLowPtThreshold(200), fL1JetHighPtThreshold(500),
63 fNTRU(8), fNTRUZ(2), fNTRUPhi(4), fPatchSize(1), fSimulation(kTRUE)
66 fADCValuesHighnxn = 0x0; //new Int_t[fTimeBins];
67 fADCValuesLownxn = 0x0; //new Int_t[fTimeBins];
68 fADCValuesHigh2x2 = 0x0; //new Int_t[fTimeBins];
69 fADCValuesLow2x2 = 0x0; //new Int_t[fTimeBins];
77 //____________________________________________________________________________
78 AliPHOSTrigger::AliPHOSTrigger(const AliPHOSTrigger & trig) :
79 AliTriggerDetector(trig),
80 f2x2MaxAmp(trig.f2x2MaxAmp),
81 f2x2CrystalPhi(trig.f2x2CrystalPhi),
82 f2x2CrystalEta(trig.f2x2CrystalEta),
84 fnxnMaxAmp(trig.fnxnMaxAmp),
85 fnxnCrystalPhi(trig.fnxnCrystalPhi),
86 fnxnCrystalEta(trig.fnxnCrystalEta),
88 fADCValuesHighnxn(trig.fADCValuesHighnxn),
89 fADCValuesLownxn(trig.fADCValuesLownxn),
90 fADCValuesHigh2x2(trig.fADCValuesHigh2x2),
91 fADCValuesLow2x2(trig.fADCValuesLow2x2),
92 fDigitsList(trig.fDigitsList),
93 fL0Threshold(trig.fL0Threshold),
94 fL1JetLowPtThreshold(trig.fL1JetLowPtThreshold),
95 fL1JetHighPtThreshold(trig.fL1JetHighPtThreshold),
98 fNTRUPhi(trig.fNTRUPhi),
99 fPatchSize(trig.fPatchSize), fSimulation(trig.fSimulation)
104 //_________________________________________________________________________
105 AliPHOSTrigger & AliPHOSTrigger::operator = (const AliPHOSTrigger &)
107 Fatal("operator =", "no implemented");
111 void AliPHOSTrigger::CreateInputs()
115 // Do not create inputs again!!
116 if( fInputs.GetEntriesFast() > 0 ) return;
118 fInputs.AddLast( new AliTriggerInput( "PHOS_L0", "PHOS L0", 0x02 ) );
119 fInputs.AddLast( new AliTriggerInput( "PHOS_JetHPt_L1","PHOS Jet High Pt L1", 0x04 ) );
120 fInputs.AddLast( new AliTriggerInput( "PHOS_JetLPt_L1","PHOS Jet Low Pt L1", 0x08 ) );
124 //____________________________________________________________________________
125 void AliPHOSTrigger::FillTRU(const TClonesArray * digits, const AliPHOSGeometry * geom, TClonesArray * ampmatrix, TClonesArray * timeRmatrix) const {
127 //Orders digits ampitudes list and times in fNTRU TRUs (28x16 crystals)
128 //per module. Each TRU is a TMatrixD, and they are kept in TClonesArrays.
129 //In a module, the number of TRU in phi is fNTRUPhi, and the number of
130 //TRU in eta is fNTRUZ.
134 if(fNTRUZ*fNTRUPhi != fNTRU)
135 Error("FillTRU"," Wrong number of TRUS per Z or Phi");
137 //Initilize and declare variables
138 Int_t nModules = geom->GetNModules();
139 Int_t nCrystalsPhi = geom->GetNPhi()/fNTRUPhi ;// 64/4=16
140 Int_t nCrystalsZ = geom->GetNZ()/fNTRUZ ;// 56/2=28
146 //List of TRU matrices initialized to 0.
147 for(Int_t k = 0; k < fNTRU*nModules ; k++){
148 TMatrixD * amptrus = new TMatrixD(nCrystalsPhi,nCrystalsZ) ;
149 TMatrixD * timeRtrus = new TMatrixD(nCrystalsPhi,nCrystalsZ) ;
150 for(Int_t i = 0; i < nCrystalsPhi; i++){
151 for(Int_t j = 0; j < nCrystalsZ; j++){
152 (*amptrus)(i,j) = 0.0;
153 (*timeRtrus)(i,j) = 0.0;
156 new((*ampmatrix)[k]) TMatrixD(*amptrus) ;
157 new((*timeRmatrix)[k]) TMatrixD(*timeRtrus) ;
162 //Digits loop to fill TRU matrices with amplitudes.
164 for(Int_t idig = 0 ; idig < digits->GetEntriesFast() ; idig++){
166 dig = static_cast<AliPHOSDigit *>(digits->At(idig)) ;
167 amp = dig->GetEnergy() ; // Energy of the digit
168 id = dig->GetId() ; // Id label of the cell
169 timeR = dig->GetTimeR() ; // Earliest time of the digit
170 geom->AbsToRelNumbering(id, relid) ;
171 //Transform digit number into 4 numbers
173 //relid[1] = EMC (0) or CPV (-1)
174 //relid[2] = row <= 64 (fNPhi)
175 //relid[3] = column <= 56 (fNZ)
177 if(relid[1] == 0){//Not CPV, Only EMC digits
179 //Check to which TRU in the supermodule belongs the crystal.
180 //Supermodules are divided in a TRU matrix of dimension
182 //Each TRU is a crystal matrix of dimension (nCrystalsPhi,nCrystalsZ)
184 //First calculate the row and column in the supermodule
185 //of the TRU to which the crystal belongs.
186 Int_t col = (relid[3]-1)/nCrystalsZ+1;
187 Int_t row = (relid[2]-1)/nCrystalsPhi+1;
189 //Calculate label number of the TRU
190 Int_t itru = (row-1) + (col-1)*fNTRUPhi + (relid[0]-1)*fNTRU ;
192 //Fill TRU matrix with crystal values
193 TMatrixD * amptrus = dynamic_cast<TMatrixD *>(ampmatrix->At(itru)) ;
194 TMatrixD * timeRtrus = dynamic_cast<TMatrixD *>(timeRmatrix->At(itru)) ;
196 //Calculate row and column of the crystal inside the TRU with number itru
197 Int_t irow = (relid[2]-1) - (row-1) * nCrystalsPhi;
198 Int_t icol = (relid[3]-1) - (col-1) * nCrystalsZ;
200 (*amptrus)(irow,icol) = amp ;
201 (*timeRtrus)(irow,icol) = timeR ;
206 //______________________________________________________________________
207 void AliPHOSTrigger::GetCrystalPhiEtaIndexInModuleFromTRUIndex(const Int_t itru,const Int_t iphitru,const Int_t ietatru,Int_t &iphiMod,Int_t &ietaMod,const AliPHOSGeometry* geom) const
209 // This method transforms the (eta,phi) index of a crystals in a
210 // TRU matrix into Super Module (eta,phi) index.
212 // Calculate in which row and column in which the TRU are
214 Int_t col = itru/ fNTRUPhi + 1;
215 Int_t row = itru - (col-1)*fNTRUPhi + 1;
217 //Calculate the (eta,phi) index in SM
218 Int_t nCrystalsPhi = geom->GetNPhi()/fNTRUPhi;
219 Int_t nCrystalsZ = geom->GetNZ()/fNTRUZ;
221 iphiMod = nCrystalsPhi*(row-1) + iphitru + 1 ;
222 ietaMod = nCrystalsZ*(col-1) + ietatru + 1 ;
225 //____________________________________________________________________________
226 void AliPHOSTrigger::MakeSlidingCell(const TClonesArray * amptrus, const TClonesArray * timeRtrus, const Int_t imod, TMatrixD *ampmax2, TMatrixD *ampmaxn, const AliPHOSGeometry *geom){
227 //Sums energy of all possible 2x2 (L0) and nxn (L1) crystals per each TRU.
228 //Fast signal in the experiment is given by 2x2 crystals,
229 //for this reason we loop inside the TRU crystals by 2.
231 //Declare and initialize varibles
232 Int_t nCrystalsPhi = geom->GetNPhi()/fNTRUPhi ;// 64/4=16
233 Int_t nCrystalsZ = geom->GetNZ()/fNTRUZ ;// 56/2=28
236 for(Int_t i = 0; i < 4; i++){
237 for(Int_t j = 0; j < fNTRU; j++){
238 (*ampmax2)(i,j) = -1;
239 (*ampmaxn)(i,j) = -1;
243 //Create matrix that will contain 2x2 amplitude sums
244 //used to calculate the nxn sums
245 TMatrixD * tru2x2 = new TMatrixD(nCrystalsPhi/2,nCrystalsZ/2) ;
246 for(Int_t i = 0; i < nCrystalsPhi/2; i++)
247 for(Int_t j = 0; j < nCrystalsZ/2; j++)
248 (*tru2x2)(i,j) = 0.0;
250 //Loop over all TRUS in a module
251 for(Int_t itru = 0 + (imod - 1) * fNTRU ; itru < imod*fNTRU ; itru++){
252 TMatrixD * amptru = dynamic_cast<TMatrixD *>(amptrus->At(itru)) ;
253 TMatrixD * timeRtru = dynamic_cast<TMatrixD *>(timeRtrus->At(itru)) ;
254 Int_t mtru = itru-(imod-1)*fNTRU ; //Number of TRU in Module
256 //Sliding 2x2, add 2x2 amplitudes (NOT OVERLAP)
257 for(Int_t irow = 0 ; irow < nCrystalsPhi; irow += 2){
258 for(Int_t icol = 0 ; icol < nCrystalsZ ; icol += 2){
259 amp2 = (*amptru)(irow,icol)+(*amptru)(irow+1,icol)+
260 (*amptru)(irow,icol+1)+(*amptru)(irow+1,icol+1);
262 //Fill new matrix with added 2x2 crystals for use in nxn sums
263 (*tru2x2)(irow/2,icol/2) = amp2 ;
264 //Select 2x2 maximum sums to select L0
265 if(amp2 > (*ampmax2)(0,mtru)){
266 (*ampmax2)(0,mtru) = amp2 ;
267 (*ampmax2)(1,mtru) = irow;
268 (*ampmax2)(2,mtru) = icol;
273 //Find most recent time in the selected 2x2 cell
274 (*ampmax2)(3,mtru) = 1 ;
275 Int_t row2 = static_cast <Int_t> ((*ampmax2)(1,mtru));
276 Int_t col2 = static_cast <Int_t> ((*ampmax2)(2,mtru));
277 for(Int_t i = 0; i<2; i++){
278 for(Int_t j = 0; j<2; j++){
279 if((*amptru)(row2+i,col2+j) > 0 && (*timeRtru)(row2+i,col2+j)> 0){
280 if((*timeRtru)(row2+i,col2+j) < (*ampmax2)(3,mtru) )
281 (*ampmax2)(3,mtru) = (*timeRtru)(row2+i,col2+j);
286 //Sliding nxn, add nxn amplitudes (OVERLAP)
288 for(Int_t irow = 0 ; irow < nCrystalsPhi/2; irow++){
289 for(Int_t icol = 0 ; icol < nCrystalsZ/2 ; icol++){
291 if( (irow+fPatchSize) < nCrystalsPhi/2 && (icol+fPatchSize) < nCrystalsZ/2){//Avoid exit the TRU
292 for(Int_t i = 0 ; i <= fPatchSize ; i++)
293 for(Int_t j = 0 ; j <= fPatchSize ; j++)
294 ampn += (*tru2x2)(irow+i,icol+j);
295 //Select nxn maximum sums to select L1
296 if(ampn > (*ampmaxn)(0,mtru)){
297 (*ampmaxn)(0,mtru) = ampn ;
298 (*ampmaxn)(1,mtru) = irow*2;
299 (*ampmaxn)(2,mtru) = icol*2;
305 //Find most recent time in selected nxn cell
306 (*ampmaxn)(3,mtru) = 1 ;
307 Int_t rown = static_cast <Int_t> ((*ampmaxn)(1,mtru));
308 Int_t coln = static_cast <Int_t> ((*ampmaxn)(2,mtru));
309 for(Int_t i = 0; i<4*fPatchSize; i++){
310 for(Int_t j = 0; j<4*fPatchSize; j++){
311 if( (rown+i) < nCrystalsPhi && (coln+j) < nCrystalsZ/2){//Avoid exit the TRU
312 if((*amptru)(rown+i,coln+j) > 0 && (*timeRtru)(rown+i,coln+j)> 0){
313 if((*timeRtru)(rown+i,coln+j) < (*ampmaxn)(3,mtru) )
314 (*ampmaxn)(3,mtru) = (*timeRtru)(rown+i,coln+j);
321 (*ampmaxn)(0,mtru) = (*ampmax2)(0,mtru);
322 (*ampmaxn)(1,mtru) = (*ampmax2)(1,mtru);
323 (*ampmaxn)(2,mtru) = (*ampmax2)(2,mtru);
324 (*ampmaxn)(3,mtru) = (*ampmax2)(3,mtru);
328 //____________________________________________________________________________
329 void AliPHOSTrigger::Print(const Option_t * opt) const
332 //Prints main parameters
336 AliTriggerInput* in = 0x0 ;
338 printf( " Maximum Amplitude after Sliding Crystal, \n") ;
339 printf( " -2x2 crystals sum (not overlapped): %10.2f, in Super Module %d\n",
341 printf( " -2x2 from row %d to row %d and from column %d to column %d\n", f2x2CrystalPhi, f2x2CrystalPhi+2, f2x2CrystalEta, f2x2CrystalEta+2) ;
344 printf( " Patch Size, n x n: %d x %d cells\n",4*fPatchSize, 4*fPatchSize);
345 printf( " -nxn crystals sum (overlapped) : %10.2f, in Super Module %d\n",
347 printf( " -nxn from row %d to row %d and from column %d to column %d\n", fnxnCrystalPhi, fnxnCrystalPhi+4, fnxnCrystalEta, fnxnCrystalEta+4) ;
349 printf( " Threshold for LO %10.1f\n",
352 printf( " Threshold for LO %10.2f\n", fL0Threshold) ;
353 in = (AliTriggerInput*)fInputs.FindObject( "PHOS_L0" );
355 printf( " *** PHOS LO is set ***\n") ;
357 printf( " Jet Low Pt Threshold for L1 %10.2f\n", fL1JetLowPtThreshold) ;
358 in = (AliTriggerInput*)fInputs.FindObject( "PHOS_JetLPt_L1" );
360 printf( " *** PHOS Jet Low Pt for L1 is set ***\n") ;
362 printf( " Jet High Pt Threshold for L1 %10.2f\n", fL1JetHighPtThreshold) ;
363 in = (AliTriggerInput*) fInputs.FindObject( "PHOS_JetHPt_L1" );
365 printf( " *** PHOS Jet High Pt for L1 is set ***\n") ;
369 //____________________________________________________________________________
370 void AliPHOSTrigger::SetTriggers(const Int_t iMod, const TMatrixD * ampmax2, const TMatrixD * ampmaxn, const AliPHOSGeometry *geom)
372 //Checks the 2x2 and nxn maximum amplitude per each TRU and compares
373 //with the different L0 and L1 triggers thresholds
375 //Initialize variables
376 Float_t max2[] = {-1,-1,-1,-1} ;
377 Float_t maxn[] = {-1,-1,-1,-1} ;
382 //Find maximum summed amplitude of all the TRU
384 for(Int_t i = 0 ; i < fNTRU ; i++){
385 if(max2[0] < (*ampmax2)(0,i) ){
386 max2[0] = (*ampmax2)(0,i) ; // 2x2 summed max amplitude
387 max2[1] = (*ampmax2)(1,i) ; // corresponding phi position in TRU
388 max2[2] = (*ampmax2)(2,i) ; // corresponding eta position in TRU
389 max2[3] = (*ampmax2)(3,i) ; // corresponding most recent time
390 itru2 = i ; // TRU number
392 if(maxn[0] < (*ampmaxn)(0,i) ){
393 maxn[0] = (*ampmaxn)(0,i) ; // nxn summed max amplitude
394 maxn[1] = (*ampmaxn)(1,i) ; // corresponding phi position in TRU
395 maxn[2] = (*ampmaxn)(2,i) ; // corresponding eta position in TRU
396 maxn[3] = (*ampmaxn)(3,i) ; // corresponding most recent time
397 itrun = i ; // TRU number
401 //Set max amplitude if larger than in other Modules
402 Float_t maxtimeR2 = -1 ;
403 Float_t maxtimeRn = -1 ;
404 // Create a shaper pulse object
405 AliPHOSPulseGenerator *pulse = new AliPHOSPulseGenerator();
406 Int_t nTimeBins = pulse->GetRawFormatTimeBins() ;
408 //Set max 2x2 amplitude and select L0 trigger
409 if(max2[0] > f2x2MaxAmp ){
410 f2x2MaxAmp = max2[0] ;
412 maxtimeR2 = max2[3] ;
413 GetCrystalPhiEtaIndexInModuleFromTRUIndex(itru2,
414 static_cast<Int_t>(max2[1]),
415 static_cast<Int_t>(max2[2]),
416 f2x2CrystalPhi,f2x2CrystalEta,geom) ;
418 //Transform digit amplitude in Raw Samples
419 fADCValuesLow2x2 = new Int_t[nTimeBins];
420 fADCValuesHigh2x2 = new Int_t[nTimeBins];
422 pulse->SetAmplitude(f2x2MaxAmp);
423 pulse->SetTZero(maxtimeR2);
424 pulse->MakeSamples();
425 pulse->GetSamples(fADCValuesHigh2x2, fADCValuesLow2x2) ;
427 //Set Trigger Inputs, compare ADC time bins until threshold is attained
429 for(Int_t i = 0 ; i < nTimeBins ; i++){
430 if(fADCValuesHigh2x2[i] >= fL0Threshold || fADCValuesLow2x2[i] >= fL0Threshold) {
431 SetInput("PHOS_L0") ;
437 //Set max nxn amplitude and select L1 triggers
438 if(maxn[0] > fnxnMaxAmp ){
439 fnxnMaxAmp = maxn[0] ;
441 maxtimeRn = maxn[3] ;
442 GetCrystalPhiEtaIndexInModuleFromTRUIndex(itrun,
443 static_cast<Int_t>(maxn[1]),
444 static_cast<Int_t>(maxn[2]),
445 fnxnCrystalPhi,fnxnCrystalEta,geom) ;
447 //Transform digit amplitude in Raw Samples
448 fADCValuesHighnxn = new Int_t[nTimeBins];
449 fADCValuesLownxn = new Int_t[nTimeBins];
451 pulse->SetAmplitude(maxtimeRn);
452 pulse->SetTZero(fnxnMaxAmp);
453 pulse->MakeSamples();
454 pulse->GetSamples(fADCValuesHighnxn, fADCValuesLownxn) ;
456 //Set Trigger Inputs, compare ADC time bins until threshold is attained
458 for(Int_t i = 0 ; i < nTimeBins ; i++){
459 if(fADCValuesHighnxn[i] >= fL1JetLowPtThreshold || fADCValuesLownxn[i] >= fL1JetLowPtThreshold){
460 SetInput("PHOS_JetLPt_L1") ;
465 for(Int_t i = 0 ; i < nTimeBins ; i++){
466 if(fADCValuesHighnxn[i] >= fL1JetHighPtThreshold || fADCValuesLownxn[i] >= fL1JetHighPtThreshold){
467 SetInput("PHOS_JetHPt_L1") ;
474 //____________________________________________________________________________
475 void AliPHOSTrigger::Trigger()
478 //Main Method to select triggers.
479 AliRunLoader *rl = gAlice->GetRunLoader();
481 AliPHOSGetter * gime = AliPHOSGetter::Instance( rl->GetFileName() ) ;
482 //AliPHOSGetter * gime = AliPHOSGetter::Instance() ;
485 const AliPHOSGeometry * geom = AliPHOSGetter::Instance()->PHOSGeometry() ;
488 Int_t nModules = geom->GetNModules();
490 //Intialize data members each time the trigger is called in event loop
491 f2x2MaxAmp = -1; f2x2CrystalPhi = -1; f2x2CrystalEta = -1;
492 fnxnMaxAmp = -1; fnxnCrystalPhi = -1; fnxnCrystalEta = -1;
494 //Take the digits list if simulation
496 fDigitsList = gime->Digits() ;
499 AliFatal("Digits not found !") ;
502 TClonesArray * amptrus = new TClonesArray("TMatrixD",1000);
503 TClonesArray * timeRtrus = new TClonesArray("TMatrixD",1000);
504 FillTRU(fDigitsList,geom,amptrus, timeRtrus) ;
506 //Do Crystal Sliding and select Trigger
507 //Initialize varible that will contain maximum amplitudes and
508 //its corresponding cell position in eta and phi, and time.
509 TMatrixD * ampmax2 = new TMatrixD(4,fNTRU) ;
510 TMatrixD * ampmaxn = new TMatrixD(4,fNTRU) ;
512 for(Int_t imod = 1 ; imod <= nModules ; imod++) {
513 //Do 2x2 and nxn sums, select maximums.
514 MakeSlidingCell(amptrus, timeRtrus, imod, ampmax2, ampmaxn, geom);
516 SetTriggers(imod,ampmax2,ampmaxn, geom) ;