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 // 4x4 crystal combinations per each TRU, adding the digits amplitude and
23 // finding the maximum. Maximums are transformed in ADC time samples.
24 // 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 "AliTriggerInput.h"
52 ClassImp(AliPHOSTrigger)
54 //______________________________________________________________________
55 AliPHOSTrigger::AliPHOSTrigger()
56 : AliTriggerDetector(),
57 f2x2MaxAmp(-1), f2x2CrystalPhi(-1), f2x2CrystalEta(-1), f2x2SM(0),
58 f4x4MaxAmp(-1), f4x4CrystalPhi(-1), f4x4CrystalEta(-1), f4x4SM(0),
59 fADCValuesHigh4x4(0), fADCValuesLow4x4(0),
60 fADCValuesHigh2x2(0), fADCValuesLow2x2(0), fDigitsList(0),
61 fL0Threshold(50), fL1JetLowPtThreshold(200), fL1JetHighPtThreshold(500),
62 fNTRU(8), fNTRUZ(2), fNTRUPhi(4), fSimulation(kTRUE)
65 fADCValuesHigh4x4 = 0x0; //new Int_t[fTimeBins];
66 fADCValuesLow4x4 = 0x0; //new Int_t[fTimeBins];
67 fADCValuesHigh2x2 = 0x0; //new Int_t[fTimeBins];
68 fADCValuesLow2x2 = 0x0; //new Int_t[fTimeBins];
76 //____________________________________________________________________________
77 AliPHOSTrigger::AliPHOSTrigger(const AliPHOSTrigger & trig) :
78 AliTriggerDetector(trig),
79 f2x2MaxAmp(trig.f2x2MaxAmp),
80 f2x2CrystalPhi(trig.f2x2CrystalPhi),
81 f2x2CrystalEta(trig.f2x2CrystalEta),
83 f4x4MaxAmp(trig.f4x4MaxAmp),
84 f4x4CrystalPhi(trig.f4x4CrystalPhi),
85 f4x4CrystalEta(trig.f4x4CrystalEta),
87 fADCValuesHigh4x4(trig.fADCValuesHigh4x4),
88 fADCValuesLow4x4(trig.fADCValuesLow4x4),
89 fADCValuesHigh2x2(trig.fADCValuesHigh2x2),
90 fADCValuesLow2x2(trig.fADCValuesLow2x2),
91 fDigitsList(trig.fDigitsList),
92 fL0Threshold(trig.fL0Threshold),
93 fL1JetLowPtThreshold(trig.fL1JetLowPtThreshold),
94 fL1JetHighPtThreshold(trig.fL1JetHighPtThreshold),
97 fNTRUPhi(trig.fNTRUPhi),
98 fSimulation(trig.fSimulation)
103 //_________________________________________________________________________
104 AliPHOSTrigger & AliPHOSTrigger::operator = (const AliPHOSTrigger &)
106 Fatal("operator =", "no implemented");
110 void AliPHOSTrigger::CreateInputs()
114 // Do not create inputs again!!
115 if( fInputs.GetEntriesFast() > 0 ) return;
117 fInputs.AddLast( new AliTriggerInput( "PHOS_L0", "PHOS L0", 0x02 ) );
118 fInputs.AddLast( new AliTriggerInput( "PHOS_JetHPt_L1","PHOS Jet High Pt L1", 0x04 ) );
119 fInputs.AddLast( new AliTriggerInput( "PHOS_JetLPt_L1","PHOS Jet Low Pt L1", 0x08 ) );
123 //____________________________________________________________________________
124 void AliPHOSTrigger::FillTRU(const TClonesArray * digits, const AliPHOSGeometry * geom, TClonesArray * ampmatrix, TClonesArray * timeRmatrix) const {
126 //Orders digits ampitudes list and times in fNTRU TRUs (28x16 crystals)
127 //per module. Each TRU is a TMatrixD, and they are kept in TClonesArrays.
128 //In a module, the number of TRU in phi is fNTRUPhi, and the number of
129 //TRU in eta is fNTRUZ.
133 if(fNTRUZ*fNTRUPhi != fNTRU)
134 Error("FillTRU"," Wrong number of TRUS per Z or Phi");
136 //Initilize and declare variables
137 Int_t nModules = geom->GetNModules();
138 Int_t nCrystalsPhi = geom->GetNPhi()/fNTRUPhi ;// 64/4=16
139 Int_t nCrystalsZ = geom->GetNZ()/fNTRUZ ;// 56/2=28
145 //List of TRU matrices initialized to 0.
146 for(Int_t k = 0; k < fNTRU*nModules ; k++){
147 TMatrixD * amptrus = new TMatrixD(nCrystalsPhi,nCrystalsZ) ;
148 TMatrixD * timeRtrus = new TMatrixD(nCrystalsPhi,nCrystalsZ) ;
149 for(Int_t i = 0; i < nCrystalsPhi; i++){
150 for(Int_t j = 0; j < nCrystalsZ; j++){
151 (*amptrus)(i,j) = 0.0;
152 (*timeRtrus)(i,j) = 0.0;
155 new((*ampmatrix)[k]) TMatrixD(*amptrus) ;
156 new((*timeRmatrix)[k]) TMatrixD(*timeRtrus) ;
161 //Digits loop to fill TRU matrices with amplitudes.
163 for(Int_t idig = 0 ; idig < digits->GetEntriesFast() ; idig++){
165 dig = static_cast<AliPHOSDigit *>(digits->At(idig)) ;
166 amp = dig->GetAmp() ; // Energy of the digit (arbitrary units)
167 id = dig->GetId() ; // Id label of the cell
168 timeR = dig->GetTimeR() ; // Earliest time of the digit
169 geom->AbsToRelNumbering(id, relid) ;
170 //Transform digit number into 4 numbers
172 //relid[1] = EMC (0) or CPV (-1)
173 //relid[2] = row <= 64 (fNPhi)
174 //relid[3] = column <= 56 (fNZ)
176 if(relid[1] == 0){//Not CPV, Only EMC digits
178 //Check to which TRU in the supermodule belongs the crystal.
179 //Supermodules are divided in a TRU matrix of dimension
181 //Each TRU is a crystal matrix of dimension (nCrystalsPhi,nCrystalsZ)
183 //First calculate the row and column in the supermodule
184 //of the TRU to which the crystal belongs.
185 Int_t col = (relid[3]-1)/nCrystalsZ+1;
186 Int_t row = (relid[2]-1)/nCrystalsPhi+1;
188 //Calculate label number of the TRU
189 Int_t itru = (row-1) + (col-1)*fNTRUPhi + (relid[0]-1)*fNTRU ;
191 //Fill TRU matrix with crystal values
192 TMatrixD * amptrus = dynamic_cast<TMatrixD *>(ampmatrix->At(itru)) ;
193 TMatrixD * timeRtrus = dynamic_cast<TMatrixD *>(timeRmatrix->At(itru)) ;
195 //Calculate row and column of the crystal inside the TRU with number itru
196 Int_t irow = (relid[2]-1) - (row-1) * nCrystalsPhi;
197 Int_t icol = (relid[3]-1) - (col-1) * nCrystalsZ;
199 (*amptrus)(irow,icol) = amp ;
200 (*timeRtrus)(irow,icol) = timeR ;
205 //______________________________________________________________________
206 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
208 // This method transforms the (eta,phi) index of a crystals in a
209 // TRU matrix into Super Module (eta,phi) index.
211 // Calculate in which row and column in which the TRU are
213 Int_t col = itru/ fNTRUPhi + 1;
214 Int_t row = itru - (col-1)*fNTRUPhi + 1;
216 //Calculate the (eta,phi) index in SM
217 Int_t nCrystalsPhi = geom->GetNPhi()/fNTRUPhi;
218 Int_t nCrystalsZ = geom->GetNZ()/fNTRUZ;
220 iphiMod = nCrystalsPhi*(row-1) + iphitru + 1 ;
221 ietaMod = nCrystalsZ*(col-1) + ietatru + 1 ;
224 //____________________________________________________________________________
225 void AliPHOSTrigger::MakeSlidingCell(const TClonesArray * amptrus, const TClonesArray * timeRtrus, const Int_t imod, TMatrixD *ampmax2, TMatrixD *ampmax4, const AliPHOSGeometry *geom){
226 //Sums energy of all possible 2x2 (L0) and 4x4 (L1) crystals per each TRU.
227 //Fast signal in the experiment is given by 2x2 crystals,
228 //for this reason we loop inside the TRU crystals by 2.
230 //Declare and initialize varibles
231 Int_t nCrystalsPhi = geom->GetNPhi()/fNTRUPhi ;// 64/4=16
232 Int_t nCrystalsZ = geom->GetNZ()/fNTRUZ ;// 56/2=28
235 for(Int_t i = 0; i < 3; i++){
236 for(Int_t j = 0; j < fNTRU; j++){
237 (*ampmax2)(i,j) = -1;
238 (*ampmax4)(i,j) = -1;
242 //Create matrix that will contain 2x2 amplitude sums
243 //used to calculate the 4x4 sums
244 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);
261 //Fill new matrix with added 2x2 crystals for use in 4x4 sums
262 (*tru2x2)(irow/2,icol/2) = amp2 ;
263 //Select 2x2 maximum sums to select L0
264 if(amp2 > (*ampmax2)(0,mtru)){
265 (*ampmax2)(0,mtru) = amp2 ;
266 (*ampmax2)(1,mtru) = irow;
267 (*ampmax2)(2,mtru) = icol;
272 //Find most recent time in the selected 2x2 cell
273 (*ampmax2)(3,mtru) = 1 ;
274 Int_t row2 = static_cast <Int_t> ((*ampmax2)(1,mtru));
275 Int_t col2 = static_cast <Int_t> ((*ampmax2)(2,mtru));
276 for(Int_t i = 0; i<2; i++){
277 for(Int_t j = 0; j<2; j++){
278 if((*amptru)(row2+i,col2+j) > 0 && (*timeRtru)(row2+i,col2+j)> 0){
279 if((*timeRtru)(row2+i,col2+j) < (*ampmax2)(3,mtru) )
280 (*ampmax2)(3,mtru) = (*timeRtru)(row2+i,col2+j);
285 //Sliding 4x4, add 4x4 amplitudes (OVERLAP)
286 for(Int_t irow = 0 ; irow < nCrystalsPhi/2; irow++){
287 for(Int_t icol = 0 ; icol < nCrystalsZ/2 ; icol++){
288 if( (irow+1) < nCrystalsPhi/2 && (icol+1) < nCrystalsZ/2){//Avoid exit the TRU
289 amp4 = (*tru2x2)(irow,icol)+(*tru2x2)(irow+1,icol)+
290 (*tru2x2)(irow,icol+1)+(*tru2x2)(irow+1,icol+1);
291 //Select 4x4 maximum sums to select L1
292 if(amp4 > (*ampmax4)(0,mtru)){
293 (*ampmax4)(0,mtru) = amp4 ;
294 (*ampmax4)(1,mtru) = irow*2;
295 (*ampmax4)(2,mtru) = icol*2;
301 //Find most recent time in selected 4x4 cell
302 (*ampmax4)(3,mtru) = 1 ;
303 Int_t row4 = static_cast <Int_t> ((*ampmax4)(1,mtru));
304 Int_t col4 = static_cast <Int_t> ((*ampmax4)(2,mtru));
305 for(Int_t i = 0; i<4; i++){
306 for(Int_t j = 0; j<4; j++){
307 if((*amptru)(row4+i,col4+j) > 0 && (*timeRtru)(row4+i,col4+j)> 0){
308 if((*timeRtru)(row4+i,col4+j) < (*ampmax4)(3,mtru) )
309 (*ampmax4)(3,mtru) = (*timeRtru)(row4+i,col4+j);
316 //____________________________________________________________________________
317 void AliPHOSTrigger::Print(const Option_t * opt) const
320 //Prints main parameters
324 AliTriggerInput* in = 0x0 ;
326 printf( " Maximum Amplitude after Sliding Crystal, \n") ;
327 printf( " -2x2 crystals sum (not overlapped): %10.2f, in Super Module %d\n",
329 printf( " -2x2 from row %d to row %d and from column %d to column %d\n", f2x2CrystalPhi, f2x2CrystalPhi+2, f2x2CrystalEta, f2x2CrystalEta+2) ;
330 printf( " -4x4 crystals sum (overlapped) : %10.2f, in Super Module %d\n",
332 printf( " -4x4 from row %d to row %d and from column %d to column %d\n", f4x4CrystalPhi, f4x4CrystalPhi+4, f4x4CrystalEta, f4x4CrystalEta+4) ;
333 printf( " Threshold for LO %10.1f\n",
336 printf( " Threshold for LO %10.2f\n", fL0Threshold) ;
337 in = (AliTriggerInput*)fInputs.FindObject( "PHOS_L0" );
339 printf( " *** PHOS LO is set ***\n") ;
341 printf( " Jet Low Pt Threshold for L1 %10.2f\n", fL1JetLowPtThreshold) ;
342 in = (AliTriggerInput*)fInputs.FindObject( "PHOS_JetLPt_L1" );
344 printf( " *** PHOS Jet Low Pt for L1 is set ***\n") ;
346 printf( " Jet High Pt Threshold for L1 %10.2f\n", fL1JetHighPtThreshold) ;
347 in = (AliTriggerInput*) fInputs.FindObject( "PHOS_JetHPt_L1" );
349 printf( " *** PHOS Jet High Pt for L1 is set ***\n") ;
353 //____________________________________________________________________________
354 void AliPHOSTrigger::SetTriggers(const Int_t iMod, const TMatrixD * ampmax2, const TMatrixD * ampmax4, const AliPHOSGeometry *geom)
356 //Checks the 2x2 and 4x4 maximum amplitude per each TRU and compares
357 //with the different L0 and L1 triggers thresholds
359 //Initialize variables
360 Float_t max2[] = {-1,-1,-1,-1} ;
361 Float_t max4[] = {-1,-1,-1,-1} ;
366 //Find maximum summed amplitude of all the TRU
368 for(Int_t i = 0 ; i < fNTRU ; i++){
369 if(max2[0] < (*ampmax2)(0,i) ){
370 max2[0] = (*ampmax2)(0,i) ; // 2x2 summed max amplitude
371 max2[1] = (*ampmax2)(1,i) ; // corresponding phi position in TRU
372 max2[2] = (*ampmax2)(2,i) ; // corresponding eta position in TRU
373 max2[3] = (*ampmax2)(3,i) ; // corresponding most recent time
374 itru2 = i ; // TRU number
376 if(max4[0] < (*ampmax4)(0,i) ){
377 max4[0] = (*ampmax4)(0,i) ; // 4x4 summed max amplitude
378 max4[1] = (*ampmax4)(1,i) ; // corresponding phi position in TRU
379 max4[2] = (*ampmax4)(2,i) ; // corresponding eta position in TRU
380 max4[3] = (*ampmax4)(3,i) ; // corresponding most recent time
381 itru4 = i ; // TRU number
385 //Set max amplitude if larger than in other Modules
386 Float_t maxtimeR2 = -1 ;
387 Float_t maxtimeR4 = -1 ;
388 AliPHOSGetter * gime = AliPHOSGetter::Instance() ;
389 AliPHOS * phos = gime->PHOS();
390 Int_t nTimeBins = phos->GetRawFormatTimeBins() ;
392 //Set max 2x2 amplitude and select L0 trigger
393 if(max2[0] > f2x2MaxAmp ){
394 f2x2MaxAmp = max2[0] ;
396 maxtimeR2 = max2[3] ;
397 GetCrystalPhiEtaIndexInModuleFromTRUIndex(itru2,static_cast<Int_t>(max2[1]),static_cast<Int_t>(max2[2]),f2x2CrystalPhi,f2x2CrystalEta,geom) ;
399 //Transform digit amplitude in Raw Samples
400 fADCValuesLow2x2 = new Int_t[nTimeBins];
401 fADCValuesHigh2x2 = new Int_t[nTimeBins];
403 phos->RawSampledResponse(maxtimeR2, f2x2MaxAmp, fADCValuesHigh2x2, fADCValuesLow2x2) ;
405 //Set Trigger Inputs, compare ADC time bins until threshold is attained
407 for(Int_t i = 0 ; i < nTimeBins ; i++){
408 if(fADCValuesHigh2x2[i] >= fL0Threshold || fADCValuesLow2x2[i] >= fL0Threshold){
409 SetInput("PHOS_L0") ;
413 // for(Int_t i = 0 ; i < 256 ; i++)
414 // if(fADCValuesLow2x2[i]!=0||fADCValuesHigh2x2[i]!=0)
415 // cout<< "2x2 Time Bin "<<i
416 // <<"; 2x2 Low Gain "<<fADCValuesLow2x2[i]
417 // <<"; 2x2 High Gain "<<fADCValuesHigh2x2[i]<<endl;
420 //Set max 4x4 amplitude and select L1 triggers
421 if(max4[0] > f4x4MaxAmp ){
422 f4x4MaxAmp = max4[0] ;
424 maxtimeR4 = max4[3] ;
425 GetCrystalPhiEtaIndexInModuleFromTRUIndex(itru4,static_cast<Int_t>(max4[1]),static_cast<Int_t>(max4[2]),f4x4CrystalPhi,f4x4CrystalEta,geom) ;
427 //Transform digit amplitude in Raw Samples
428 fADCValuesHigh4x4 = new Int_t[nTimeBins];
429 fADCValuesLow4x4 = new Int_t[nTimeBins];
430 phos->RawSampledResponse(maxtimeR4, f4x4MaxAmp, fADCValuesHigh4x4, fADCValuesLow4x4) ;
432 //Set Trigger Inputs, compare ADC time bins until threshold is attained
434 for(Int_t i = 0 ; i < nTimeBins ; i++){
435 if(fADCValuesHigh4x4[i] >= fL1JetLowPtThreshold || fADCValuesLow4x4[i] >= fL1JetLowPtThreshold){
436 SetInput("PHOS_JetLPt_L1") ;
441 for(Int_t i = 0 ; i < nTimeBins ; i++){
442 if(fADCValuesHigh4x4[i] >= fL1JetHighPtThreshold || fADCValuesLow4x4[i] >= fL1JetHighPtThreshold){
443 SetInput("PHOS_JetHPt_L1") ;
447 // for(Int_t i = 0 ; i < 256 ; i++)
448 // if(fADCValuesLow4x4[i]!=0||fADCValuesHigh4x4[i]!=0)
449 // cout<< "4x4 Time Bin "<<i
450 // <<"; 4x4 Low Gain "<<fADCValuesLow4x4[i]
451 // <<"; 4x4 High Gain "<<fADCValuesHigh4x4[i]<<endl;
455 //____________________________________________________________________________
456 void AliPHOSTrigger::Trigger()
459 //Main Method to select triggers.
460 AliRunLoader *rl = gAlice->GetRunLoader();
462 AliPHOSGetter * gime = AliPHOSGetter::Instance( rl->GetFileName() ) ;
463 //AliPHOSGetter * gime = AliPHOSGetter::Instance() ;
466 const AliPHOSGeometry * geom = AliPHOSGetter::Instance()->PHOSGeometry() ;
469 Int_t nModules = geom->GetNModules();
471 //Intialize data members each time the trigger is called in event loop
472 f2x2MaxAmp = -1; f2x2CrystalPhi = -1; f2x2CrystalEta = -1;
473 f4x4MaxAmp = -1; f4x4CrystalPhi = -1; f4x4CrystalEta = -1;
475 //Take the digits list if simulation
477 fDigitsList = gime->Digits() ;
480 AliFatal("Digits not found !") ;
483 TClonesArray * amptrus = new TClonesArray("TMatrixD",1000);
484 TClonesArray * timeRtrus = new TClonesArray("TMatrixD",1000);
485 FillTRU(fDigitsList,geom,amptrus, timeRtrus) ;
487 //Do Crystal Sliding and select Trigger
488 //Initialize varible that will contain maximum amplitudes and
489 //its corresponding cell position in eta and phi, and time.
490 TMatrixD * ampmax2 = new TMatrixD(4,fNTRU) ;
491 TMatrixD * ampmax4 = new TMatrixD(4,fNTRU) ;
493 for(Int_t imod = 1 ; imod <= nModules ; imod++) {
494 //Do 2x2 and 4x4 sums, select maximums.
495 MakeSlidingCell(amptrus, timeRtrus, imod, ampmax2, ampmax4, geom);
497 SetTriggers(imod,ampmax2,ampmax4, geom) ;