Changed operator+ to make sure that fTimeR is time of earliest hit
[u/mrichter/AliRoot.git] / EMCAL / AliEMCAL.cxx
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2012850d 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/* $Id$ */
4884333f 17/* History of cvs commits:
18 *
19 * $Log$
23ef18ac 20 * Revision 1.51 2007/02/24 20:42:35 pavlinov
21 * fixed error of Geant3 parameters initialisation
22 *
91e5f344 23 * Revision 1.50 2007/02/05 10:43:25 hristov
24 * Changes for correct initialization of Geant4 (Mihaela)
25 *
7235aed2 26 * Revision 1.49 2007/01/22 17:29:12 pavlinov
27 * EMCAL geometry can be created independently form anything now
28 *
89557f6d 29 * Revision 1.48 2006/12/19 02:34:13 pavlinov
30 * clean up the EMCAL name scheme : super module -> module -> tower (or cell)
31 *
2bb3725c 32 * Revision 1.47 2006/12/05 17:12:03 gustavo
33 * Updated AliEMCAL::Digits2Raw, reads first provisional RCU mapping files to make Raw data with new AliCaloAltroMapping and AliCaloRawStream
34 *
4884333f 35 *
36 */
2012850d 37//_________________________________________________________________________
38// Base Class for EMCAL description:
ffa6d63b 39// This class contains material definitions
40// for the EMCAL - It does not place the detector in Alice
2012850d 41//*-- Author: Yves Schutz (SUBATECH)
b13bbe81 42//
43//*-- Additional Contributions: Sahal Yacoob (LBNL/UCT)
44//
2012850d 45//////////////////////////////////////////////////////////////////////////////
46
2012850d 47// --- ROOT system ---
b13bbe81 48class TFile;
88cb7938 49#include <TFolder.h>
88cb7938 50#include <TTree.h>
51#include <TVirtualMC.h>
046ae904 52#include <TH1F.h>
53#include <TF1.h>
54#include <TRandom.h>
2d5d9e60 55#include <TGraph.h>
2012850d 56
05a92d59 57// --- Standard library ---
2012850d 58
05a92d59 59// --- AliRoot header files ---
2012850d 60#include "AliMagF.h"
88cb7938 61#include "AliEMCAL.h"
85a5290f 62#include "AliRun.h"
5dee926e 63#include "AliEMCALLoader.h"
85a5290f 64#include "AliEMCALSDigitizer.h"
65#include "AliEMCALDigitizer.h"
5dee926e 66#include "AliEMCALDigit.h"
4884333f 67//#include "AliAltroMapping.h"
68#include "AliCaloAltroMapping.h"
f51151a0 69#include "AliAltroBuffer.h"
2d5d9e60 70#include "AliRawReader.h"
4884333f 71#include "AliCaloRawStream.h"
362c9d61 72#include "AliDAQ.h"
2012850d 73
74ClassImp(AliEMCAL)
56088960 75Double_t AliEMCAL::fgCapa = 1.; // 1pF
76Int_t AliEMCAL::fgOrder = 2 ;
77Double_t AliEMCAL::fgTimeMax = 2.56E-5 ; // each sample is over 100 ns fTimeMax/fTimeBins
78Double_t AliEMCAL::fgTimePeak = 4.1E-6 ; // 4 micro seconds
79Double_t AliEMCAL::fgTimeTrigger = 100E-9 ; // 100ns, just for a reference
2d5d9e60 80// some digitization constants
2d5d9e60 81Int_t AliEMCAL::fgThreshold = 1;
4884333f 82Int_t AliEMCAL::fgDDLPerSuperModule = 2; // 2 ddls per SuperModule
83
2012850d 84//____________________________________________________________________________
18a21c7c 85AliEMCAL::AliEMCAL()
86 : AliDetector(),
87 fBirkC0(0),
88 fBirkC1(0.),
89 fBirkC2(0.),
90 fHighCharge(0.),
91 fHighGain(0.),
92 fHighLowGainFactor(0.),
23ef18ac 93 fLowGainOffset(0),
94 fGeometry(0)
2012850d 95{
05a92d59 96 // Default ctor
046ae904 97 fName = "EMCAL" ;
7235aed2 98 InitConstants();
23ef18ac 99 // Should call AliEMCALGeometry::GetInstance(EMCAL->GetTitle(),"") for getting EMCAL geometry
2012850d 100}
05a92d59 101
2012850d 102//____________________________________________________________________________
18a21c7c 103AliEMCAL::AliEMCAL(const char* name, const char* title)
104 : AliDetector(name,title),
105 fBirkC0(0),
106 fBirkC1(0.),
107 fBirkC2(0.),
108 fHighCharge(0.),
109 fHighGain(0.),
110 fHighLowGainFactor(0.),
23ef18ac 111 fLowGainOffset(0),
112 fGeometry(0)
05a92d59 113{
114 // ctor : title is used to identify the layout
7235aed2 115 InitConstants();
0a4cb131 116}
117
118//____________________________________________________________________________
05a92d59 119AliEMCAL::~AliEMCAL()
120{
14ce0a6e 121 //dtor
2012850d 122}
123
124//____________________________________________________________________________
7235aed2 125void AliEMCAL::InitConstants()
0a4cb131 126{
127 //initialize EMCAL values
128 fBirkC0 = 1;
129 fBirkC1 = 0.013/1.032;
130 fBirkC2 = 9.6e-6/(1.032 * 1.032);
131
132 fHighCharge = 8.2 ; // adjusted for a high gain range of 5.12 GeV (10 bits)
133 fHighGain = 6.64 ;
134 fHighLowGainFactor = 16. ; // adjusted for a low gain range of 82 GeV (10 bits)
135 fLowGainOffset = 1 ; // offset added to the module id to distinguish high and low gain data
136}
137
138//____________________________________________________________________________
91e5f344 139void AliEMCAL::DefineMediumParameters()
05a92d59 140{
91e5f344 141 //
142 // EMCAL cuts (Geant3)
143 //
2012850d 144 Int_t * idtmed = fIdtmed->GetArray() - 1599 ;
b13bbe81 145// --- Set decent energy thresholds for gamma and electron tracking
2012850d 146
147 // Tracking threshold for photons and electrons in Lead
905263da 148 Float_t cutgam=10.e-5; // 100 kev;
149 Float_t cutele=10.e-5; // 100 kev;
150 TString ntmp(GetTitle());
151 ntmp.ToUpper();
152 if(ntmp.Contains("10KEV")) {
153 cutele = cutgam = 1.e-5;
154 } else if(ntmp.Contains("50KEV")) {
155 cutele = cutgam = 5.e-5;
156 } else if(ntmp.Contains("100KEV")) {
157 cutele = cutgam = 1.e-4;
158 } else if(ntmp.Contains("200KEV")) {
159 cutele = cutgam = 2.e-4;
160 } else if(ntmp.Contains("500KEV")) {
161 cutele = cutgam = 5.e-4;
162 }
2012850d 163
905263da 164 gMC->Gstpar(idtmed[1600],"CUTGAM", cutgam);
165 gMC->Gstpar(idtmed[1600],"CUTELE", cutele); // 1MEV -> 0.1MEV; 15-aug-05
166 gMC->Gstpar(idtmed[1600],"BCUTE", cutgam); // BCUTE and BCUTM start from GUTGUM
167 gMC->Gstpar(idtmed[1600],"BCUTM", cutgam); // BCUTE and BCUTM start from GUTGUM
2012850d 168 // --- Generate explicitly delta rays in Lead ---
89557f6d 169 gMC->Gstpar(idtmed[1600], "LOSS", 3) ;
170 gMC->Gstpar(idtmed[1600], "DRAY", 1) ;
905263da 171 gMC->Gstpar(idtmed[1600], "DCUTE", cutele) ;
172 gMC->Gstpar(idtmed[1600], "DCUTM", cutele) ;
05a92d59 173
a63e0d5e 174// --- in aluminium parts ---
905263da 175 gMC->Gstpar(idtmed[1602],"CUTGAM", cutgam) ;
176 gMC->Gstpar(idtmed[1602],"CUTELE", cutele) ;
177 gMC->Gstpar(idtmed[1602],"BCUTE", cutgam); // BCUTE and BCUTM start from GUTGUM
178 gMC->Gstpar(idtmed[1602],"BCUTM", cutgam); // BCUTE and BCUTM start from GUTGUM
b13bbe81 179 gMC->Gstpar(idtmed[1602], "LOSS",3.) ;
180 gMC->Gstpar(idtmed[1602], "DRAY",1.) ;
905263da 181 gMC->Gstpar(idtmed[1602], "DCUTE", cutele) ;
182 gMC->Gstpar(idtmed[1602], "DCUTM", cutele) ;
b13bbe81 183
ffa6d63b 184// --- and finally thresholds for photons and electrons in the scintillator ---
905263da 185 gMC->Gstpar(idtmed[1601],"CUTGAM", cutgam) ;
186 gMC->Gstpar(idtmed[1601],"CUTELE", cutele) ;// 1MEV -> 0.1MEV; 15-aug-05
187 gMC->Gstpar(idtmed[1601],"BCUTE", cutgam); // BCUTE and BCUTM start from GUTGUM
188 gMC->Gstpar(idtmed[1601],"BCUTM", cutgam); // BCUTE and BCUTM start from GUTGUM
89557f6d 189 gMC->Gstpar(idtmed[1601], "LOSS",3) ; // generate delta rays
190 gMC->Gstpar(idtmed[1601], "DRAY",1) ;
905263da 191 gMC->Gstpar(idtmed[1601], "DCUTE", cutele) ;
192 gMC->Gstpar(idtmed[1601], "DCUTM", cutele) ;
193
194 // S steel -
195 gMC->Gstpar(idtmed[1603],"CUTGAM", cutgam);
196 gMC->Gstpar(idtmed[1603],"CUTELE", cutele);
197 gMC->Gstpar(idtmed[1603],"BCUTE", cutgam); // BCUTE and BCUTM start from GUTGUM
198 gMC->Gstpar(idtmed[1603],"BCUTM", cutgam); // BCUTE and BCUTM start from GUTGUM
199 // --- Generate explicitly delta rays
89557f6d 200 gMC->Gstpar(idtmed[1603], "LOSS",3);
201 gMC->Gstpar(idtmed[1603], "DRAY",1);
905263da 202 gMC->Gstpar(idtmed[1603], "DCUTE", cutele) ;
203 gMC->Gstpar(idtmed[1603], "DCUTM", cutele) ;
1963b290 204
7235aed2 205 AliEMCALGeometry* geom = GetGeometry();
89557f6d 206 if(geom->GetILOSS()>=0) {
207 for(int i=1600; i<=1603; i++) gMC->Gstpar(idtmed[i], "LOSS", geom->GetILOSS()) ;
208 }
209 if(geom->GetIHADR()>=0) {
210 for(int i=1600; i<=1603; i++) gMC->Gstpar(idtmed[i], "HADR", geom->GetIHADR()) ;
211 }
7235aed2 212}
213
214//____________________________________________________________________________
215AliDigitizer* AliEMCAL::CreateDigitizer(AliRunDigitizer* manager) const
216{
217 //create and return the digitizer
218 return new AliEMCALDigitizer(manager);
219}
220
221//____________________________________________________________________________
222void AliEMCAL::CreateMaterials()
223{
224 // Definitions of materials to build EMCAL and associated tracking media.
225 // media number in idtmed are 1599 to 1698.
226 // --- Air ---
227 Float_t aAir[4]={12.0107,14.0067,15.9994,39.948};
228 Float_t zAir[4]={6.,7.,8.,18.};
229 Float_t wAir[4]={0.000124,0.755267,0.231781,0.012827};
230 Float_t dAir = 1.20479E-3;
231 AliMixture(0, "Air$", aAir, zAir, dAir, 4, wAir) ;
232
233 // --- Lead ---
234 AliMaterial(1, "Pb$", 207.2, 82, 11.35, 0.56, 0., 0, 0) ;
235
236
237 // --- The polysterene scintillator (CH) ---
238 Float_t aP[2] = {12.011, 1.00794} ;
239 Float_t zP[2] = {6.0, 1.0} ;
240 Float_t wP[2] = {1.0, 1.0} ;
241 Float_t dP = 1.032 ;
242
243 AliMixture(2, "Polystyrene$", aP, zP, dP, -2, wP) ;
244
245 // --- Aluminium ---
246 AliMaterial(3, "Al$", 26.98, 13., 2.7, 8.9, 999., 0, 0) ;
247 // --- Absorption length is ignored ^
248
249 // 25-aug-04 by PAI - see PMD/AliPMDv0.cxx for STEEL definition
250 Float_t asteel[4] = { 55.847,51.9961,58.6934,28.0855 };
251 Float_t zsteel[4] = { 26.,24.,28.,14. };
252 Float_t wsteel[4] = { .715,.18,.1,.005 };
253 AliMixture(4, "STAINLESS STEEL$", asteel, zsteel, 7.88, 4, wsteel);
254
255 // DEFINITION OF THE TRACKING MEDIA
256
257 // for EMCAL: idtmed[1599->1698] equivalent to fIdtmed[0->100]
258 Int_t isxfld = gAlice->Field()->Integ() ;
259 Float_t sxmgmx = gAlice->Field()->Max() ;
260
261 // Air -> idtmed[1599]
262 AliMedium(0, "Air$", 0, 0,
263 isxfld, sxmgmx, 10.0, 1.0, 0.1, 0.1, 10.0, 0, 0) ;
264
265 // The Lead -> idtmed[1600]
266
267 AliMedium(1, "Lead$", 1, 0,
268 isxfld, sxmgmx, 10.0, 0.1, 0.1, 0.1, 0.1, 0, 0) ;
269
270 // The scintillator of the CPV made of Polystyrene scintillator -> idtmed[1601]
91e5f344 271 float deemax = 0.1; // maximum fractional energy loss in one step (0 < DEEMAX â?¤ 1);i
7235aed2 272 AliMedium(2, "Scintillator$", 2, 1,
273 isxfld, sxmgmx, 10.0, 0.001, deemax, 0.001, 0.001, 0, 0) ;
274
275 // Various Aluminium parts made of Al -> idtmed[1602]
276 AliMedium(3, "Al$", 3, 0,
277 isxfld, sxmgmx, 10.0, 0.1, 0.1, 0.001, 0.001, 0, 0) ;
278
279 // 25-aug-04 by PAI : see PMD/AliPMDv0.cxx for STEEL definition -> idtmed[1603]
280 AliMedium(4, "S steel$", 4, 0,
281 isxfld, sxmgmx, 10.0, 0.1, 0.1, 0.001, 0.001, 0, 0) ;
282
89557f6d 283
ab37d09c 284 //set constants for Birk's Law implentation
285 fBirkC0 = 1;
286 fBirkC1 = 0.013/dP;
287 fBirkC2 = 9.6e-6/(dP * dP);
288
91e5f344 289 // Call just in case of Geant3; What to do in case of Geant4 ?
290 if(gMC->InheritsFrom("TGeant3")) DefineMediumParameters(); // Feb 20, 2007
2012850d 291}
4884333f 292 //____________________________________________________________________________
f51151a0 293void AliEMCAL::Digits2Raw()
294{
56088960 295 // convert digits of the current event to raw data
4884333f 296
56088960 297 AliEMCALLoader * loader = dynamic_cast<AliEMCALLoader*>(fLoader) ;
4884333f 298
f51151a0 299 // get the digits
00d03c2f 300 loader->LoadDigits("EMCAL");
811570e1 301 loader->GetEvent();
56088960 302 TClonesArray* digits = loader->Digits() ;
4884333f 303
f51151a0 304 if (!digits) {
305 Error("Digits2Raw", "no digits found !");
306 return;
307 }
4884333f 308
56088960 309 // get the digitizer
310 loader->LoadDigitizer();
311 AliEMCALDigitizer * digitizer = dynamic_cast<AliEMCALDigitizer *>(loader->Digitizer()) ;
312
4884333f 313 // get the geometry
314 AliEMCALGeometry* geom = GetGeometry();
315 if (!geom) {
316 AliError(Form("No geometry found !"));
317 return;
318 }
319
f51151a0 320 AliAltroBuffer* buffer = NULL;
321 Int_t prevDDL = -1;
14ce0a6e 322 Int_t adcValuesLow[fgkTimeBins];
323 Int_t adcValuesHigh[fgkTimeBins];
4884333f 324
325 //Load Mapping RCU files once
326 TString path = gSystem->Getenv("ALICE_ROOT");
327 path += "/EMCAL/mapping/RCU";
328 TString path0 = path+"0.data";//This file will change in future
329 TString path1 = path+"1.data";//This file will change in future
330 AliAltroMapping * mapping[2] ; // For the moment only 2
331 mapping[0] = new AliCaloAltroMapping(path0.Data());
332 mapping[1] = new AliCaloAltroMapping(path1.Data());
333
f51151a0 334 // loop over digits (assume ordered digits)
335 for (Int_t iDigit = 0; iDigit < digits->GetEntries(); iDigit++) {
56088960 336 AliEMCALDigit* digit = dynamic_cast<AliEMCALDigit *>(digits->At(iDigit)) ;
2d5d9e60 337 if (digit->GetAmp() < fgThreshold)
f51151a0 338 continue;
4884333f 339
340 //get cell indeces
341 Int_t nSM = 0;
342 Int_t nIphi = 0;
343 Int_t nIeta = 0;
344 Int_t iphi = 0;
345 Int_t ieta = 0;
2bb3725c 346 Int_t nModule = 0;
347 geom->GetCellIndex(digit->GetId(), nSM, nModule, nIphi, nIeta);
348 geom->GetCellPhiEtaIndexInSModule(nSM, nModule, nIphi, nIeta,iphi, ieta) ;
4884333f 349
350 //Check which is the RCU of the cell.
351 Int_t iRCU = -111;
352 //RCU0
353 if (0<=iphi&&iphi<8) iRCU=0; // first cable row
354 else if (8<=iphi&&iphi<16 && 0<=ieta&&ieta<24) iRCU=0; // first half;
355 //second cable row
356 //RCU1
357 else if(8<=iphi&&iphi<16 && 24<=ieta&&ieta<48) iRCU=1; // second half;
358 //second cable row
359 else if(16<=iphi&&iphi<24) iRCU=1; // third cable row
360
361 //Which DDL?
362 Int_t iDDL = fgDDLPerSuperModule* nSM + iRCU;
363
f51151a0 364 // new DDL
365 if (iDDL != prevDDL) {
366 // write real header and close previous file
4884333f 367
f51151a0 368 if (buffer) {
369 buffer->Flush();
370 buffer->WriteDataHeader(kFALSE, kFALSE);
371 delete buffer;
372 }
4884333f 373
f51151a0 374 // open new file and write dummy header
4884333f 375 TString fileName = AliDAQ::DdlFileName("EMCAL",iDDL);
376 buffer = new AliAltroBuffer(fileName.Data(),mapping[iRCU]);
f51151a0 377 buffer->WriteDataHeader(kTRUE, kFALSE); //Dummy;
f51151a0 378 prevDDL = iDDL;
379 }
4884333f 380
f51151a0 381 // out of time range signal (?)
56088960 382 if (digit->GetTimeR() > GetRawFormatTimeMax() ) {
4884333f 383 AliInfo("Signal is out of time range.\n");
384 buffer->FillBuffer((Int_t)digit->GetAmp());
56088960 385 buffer->FillBuffer(GetRawFormatTimeBins() ); // time bin
4884333f 386 buffer->FillBuffer(3); // bunch length
387 buffer->WriteTrailer(3, ieta, iphi, nSM); // trailer
56088960 388 // calculate the time response function
f51151a0 389 } else {
4884333f 390
391 Double_t energy = digit->GetAmp() * digitizer->GetECAchannel() + digitizer->GetECApedestal() ;
56088960 392
393 Bool_t lowgain = RawSampledResponse(digit->GetTimeR(), energy, adcValuesHigh, adcValuesLow) ;
394
395 if (lowgain)
4884333f 396 buffer->WriteChannel(ieta, iphi, 0, GetRawFormatTimeBins(), adcValuesLow, fgThreshold);
56088960 397 else
4884333f 398 buffer->WriteChannel(ieta,iphi, 1, GetRawFormatTimeBins(), adcValuesHigh, fgThreshold);
399
f51151a0 400 }
401 }
56088960 402
f51151a0 403 // write real header and close last file
404 if (buffer) {
405 buffer->Flush();
406 buffer->WriteDataHeader(kFALSE, kFALSE);
407 delete buffer;
408 }
4884333f 409 mapping[0]->Delete();
410 mapping[1]->Delete();
56088960 411 loader->UnloadDigits();
f51151a0 412}
413
414//____________________________________________________________________________
2d5d9e60 415void AliEMCAL::Raw2Digits(AliRawReader* reader)
416{
4800667c 417 // convert raw data of the current event to digits
4884333f 418 AliEMCALGeometry * geom = GetGeometry();
2d5d9e60 419 AliEMCALLoader * loader = dynamic_cast<AliEMCALLoader*>(fLoader) ;
420
421 // get the digits
422 loader->CleanDigits(); // start from scratch
00d03c2f 423 loader->LoadDigits("EMCAL");
2d5d9e60 424 TClonesArray* digits = loader->Digits() ;
425 digits->Clear(); // yes, this is perhaps somewhat paranoid.. [clearing an extra time]
426
427 if (!digits) {
428 Error("Raw2Digits", "no digits found !");
429 return;
430 }
431 if (!reader) {
432 Error("Raw2Digits", "no raw reader found !");
433 return;
434 }
435
436 // and get the digitizer too
437 loader->LoadDigitizer();
438 AliEMCALDigitizer * digitizer = dynamic_cast<AliEMCALDigitizer *>(loader->Digitizer()) ;
439
440 // Use AliAltroRawStream to read the ALTRO format. No need to
441 // reinvent the wheel :-)
4884333f 442 AliCaloRawStream in(reader,"EMCAL");
362c9d61 443 // Select EMCAL DDL's;
444 reader->Select("EMCAL");
2d5d9e60 445
446 // reading is from previously existing AliEMCALGetter.cxx
447 // ReadRaw method
448 Bool_t first = kTRUE ;
449
450 TF1 * signalF = new TF1("signal", RawResponseFunction, 0, GetRawFormatTimeMax(), 4);
451 signalF->SetParNames("Charge", "Gain", "Amplitude", "TimeZero");
452
2d5d9e60 453 Bool_t lowGainFlag = kFALSE ;
4884333f 454 Int_t id = -1;
2d5d9e60 455 Int_t idigit = 0 ;
456 Int_t amp = 0 ;
457 Double_t time = 0. ;
458 Double_t energy = 0. ;
459
460 TGraph * gLowGain = new TGraph(GetRawFormatTimeBins()) ;
461 TGraph * gHighGain= new TGraph(GetRawFormatTimeBins()) ;
462
463 while ( in.Next() ) { // EMCAL entries loop
4884333f 464 if ( in.IsNewRow() ) {//phi
465 if ( in.IsNewColumn() ) {//eta
466 id = geom->GetAbsCellIdFromCellIndexes(in.GetModule(), in.GetRow(), in.GetColumn()) ;
467 if (!first) {
468 FitRaw(lowGainFlag, gLowGain, gHighGain, signalF, energy, time) ;
469
470 if (time == 0. && energy == 0.) {
471 amp = 0 ;
472 }
473 else {
474 amp = static_cast<Int_t>( (energy - digitizer->GetECApedestal()) / digitizer->GetECAchannel() + 0.5 ) ;
475 }
476
477 if (amp > 0) {
478 new((*digits)[idigit]) AliEMCALDigit( -1, -1, id, amp, time) ;
479 idigit++ ;
480 }
481 Int_t index ;
482 for (index = 0; index < GetRawFormatTimeBins(); index++) {
483 gLowGain->SetPoint(index, index * GetRawFormatTimeMax() / GetRawFormatTimeBins(), 0) ;
484 gHighGain->SetPoint(index, index * GetRawFormatTimeMax() / GetRawFormatTimeBins(), 0) ;
485 }
486 } // not first
487 first = kFALSE ;
488 id = geom->GetAbsCellIdFromCellIndexes(in.GetModule(), in.GetRow(), in.GetColumn()) ;
489 if (in.GetModule() == GetRawFormatLowGainOffset() ) {
490 lowGainFlag = kTRUE ;
2d5d9e60 491 }
4884333f 492 else {
493 lowGainFlag = kFALSE ;
2d5d9e60 494 }
4884333f 495 } //new column-eta
496 }// new row-phi
2d5d9e60 497 if (lowGainFlag) {
498 gLowGain->SetPoint(in.GetTime(),
499 in.GetTime()* GetRawFormatTimeMax() / GetRawFormatTimeBins(),
500 in.GetSignal()) ;
501 }
502 else {
503 gHighGain->SetPoint(in.GetTime(),
504 in.GetTime() * GetRawFormatTimeMax() / GetRawFormatTimeBins(),
505 in.GetSignal() ) ;
506 }
507 } // EMCAL entries loop
508 digits->Sort() ;
4884333f 509
2d5d9e60 510 delete signalF ;
511 delete gLowGain;
512 delete gHighGain ;
4884333f 513
2d5d9e60 514 return ;
515}
516
517//____________________________________________________________________________
518void AliEMCAL::FitRaw(Bool_t lowGainFlag, TGraph * gLowGain, TGraph * gHighGain, TF1* signalF, Double_t & energy, Double_t & time)
519{
520 // Fits the raw signal time distribution; from AliEMCALGetter
521
522 const Int_t kNoiseThreshold = 0 ;
523 Double_t timezero1 = 0., timezero2 = 0., timemax = 0. ;
524 Double_t signal = 0., signalmax = 0. ;
525 energy = time = 0. ;
526
527 if (lowGainFlag) {
528 timezero1 = timezero2 = signalmax = timemax = 0. ;
529 signalF->FixParameter(0, GetRawFormatLowCharge()) ;
530 signalF->FixParameter(1, GetRawFormatLowGain()) ;
531 Int_t index ;
532 for (index = 0; index < GetRawFormatTimeBins(); index++) {
533 gLowGain->GetPoint(index, time, signal) ;
534 if (signal > kNoiseThreshold && timezero1 == 0.)
535 timezero1 = time ;
536 if (signal <= kNoiseThreshold && timezero1 > 0. && timezero2 == 0.)
537 timezero2 = time ;
538 if (signal > signalmax) {
539 signalmax = signal ;
540 timemax = time ;
541 }
542 }
543 signalmax /= RawResponseFunctionMax(GetRawFormatLowCharge(),
544 GetRawFormatLowGain()) ;
545 if ( timezero1 + GetRawFormatTimePeak() < GetRawFormatTimeMax() * 0.4 ) { // else its noise
546 signalF->SetParameter(2, signalmax) ;
547 signalF->SetParameter(3, timezero1) ;
548 gLowGain->Fit(signalF, "QRON", "", 0., timezero2); //, "QRON") ;
549 energy = signalF->GetParameter(2) ;
550 time = signalF->GetMaximumX() - GetRawFormatTimePeak() - GetRawFormatTimeTrigger() ;
551 }
552 } else {
553 timezero1 = timezero2 = signalmax = timemax = 0. ;
554 signalF->FixParameter(0, GetRawFormatHighCharge()) ;
555 signalF->FixParameter(1, GetRawFormatHighGain()) ;
556 Int_t index ;
557 for (index = 0; index < GetRawFormatTimeBins(); index++) {
558 gHighGain->GetPoint(index, time, signal) ;
559 if (signal > kNoiseThreshold && timezero1 == 0.)
560 timezero1 = time ;
561 if (signal <= kNoiseThreshold && timezero1 > 0. && timezero2 == 0.)
562 timezero2 = time ;
563 if (signal > signalmax) {
564 signalmax = signal ;
565 timemax = time ;
566 }
567 }
568 signalmax /= RawResponseFunctionMax(GetRawFormatHighCharge(),
569 GetRawFormatHighGain()) ;;
570 if ( timezero1 + GetRawFormatTimePeak() < GetRawFormatTimeMax() * 0.4 ) { // else its noise
571 signalF->SetParameter(2, signalmax) ;
572 signalF->SetParameter(3, timezero1) ;
573 gHighGain->Fit(signalF, "QRON", "", 0., timezero2) ;
574 energy = signalF->GetParameter(2) ;
575 time = signalF->GetMaximumX() - GetRawFormatTimePeak() - GetRawFormatTimeTrigger() ;
576 }
577 }
578
579 return;
580}
581
582//____________________________________________________________________________
8367ce9a 583void AliEMCAL::Hits2SDigits()
584{
585// create summable digits
586
ddca522a 587 GetGeometry();
4d33c797 588 AliEMCALSDigitizer emcalDigitizer(fLoader->GetRunLoader()->GetFileName().Data()) ;
589 emcalDigitizer.SetEventRange(0, -1) ; // do all the events
590 emcalDigitizer.ExecuteTask() ;
da480a28 591}
592
593//____________________________________________________________________________
5dee926e 594
8367ce9a 595AliLoader* AliEMCAL::MakeLoader(const char* topfoldername)
596{
597//different behaviour than standard (singleton getter)
598// --> to be discussed and made eventually coherent
599 fLoader = new AliEMCALLoader(GetName(),topfoldername);
600 return fLoader;
601}
602
046ae904 603//__________________________________________________________________
604Double_t AliEMCAL::RawResponseFunction(Double_t *x, Double_t *par)
605{
606 // Shape of the electronics raw reponse:
56088960 607 // It is a semi-gaussian, 2nd order Gamma function of the general form
608 // v(t) = n**n * Q * A**n / C *(t/tp)**n * exp(-n * t/tp) with
609 // tp : peaking time par[0]
610 // n : order of the function
611 // C : integrating capacitor in the preamplifier
612 // A : open loop gain of the preamplifier
613 // Q : the total APD charge to be measured Q = C * energy
046ae904 614
56088960 615 Double_t signal ;
616 Double_t xx = x[0] - ( fgTimeTrigger + par[3] ) ;
046ae904 617
56088960 618 if (xx < 0 || xx > fgTimeMax)
619 signal = 0. ;
620 else {
621 Double_t fac = par[0] * TMath::Power(fgOrder, fgOrder) * TMath::Power(par[1], fgOrder) / fgCapa ;
622 signal = fac * par[2] * TMath::Power(xx / fgTimePeak, fgOrder) * TMath::Exp(-fgOrder * (xx / fgTimePeak)) ;
623 }
624 return signal ;
046ae904 625}
626
627//__________________________________________________________________
56088960 628Double_t AliEMCAL::RawResponseFunctionMax(Double_t charge, Double_t gain)
629{
14ce0a6e 630 //compute the maximum of the raw response function and return
56088960 631 return ( charge * TMath::Power(fgOrder, fgOrder) * TMath::Power(gain, fgOrder)
632 / ( fgCapa * TMath::Exp(fgOrder) ) );
633
634}
635//__________________________________________________________________
636Bool_t AliEMCAL::RawSampledResponse(
637const Double_t dtime, const Double_t damp, Int_t * adcH, Int_t * adcL) const
046ae904 638{
639 // for a start time dtime and an amplitude damp given by digit,
56088960 640 // calculates the raw sampled response AliEMCAL::RawResponseFunction
046ae904 641
642 const Int_t kRawSignalOverflow = 0x3FF ;
56088960 643 Bool_t lowGain = kFALSE ;
644
645 TF1 signalF("signal", RawResponseFunction, 0, GetRawFormatTimeMax(), 4);
646
647 for (Int_t iTime = 0; iTime < GetRawFormatTimeBins(); iTime++) {
648 signalF.SetParameter(0, GetRawFormatHighCharge() ) ;
649 signalF.SetParameter(1, GetRawFormatHighGain() ) ;
650 signalF.SetParameter(2, damp) ;
651 signalF.SetParameter(3, dtime) ;
652 Double_t time = iTime * GetRawFormatTimeMax() / GetRawFormatTimeBins() ;
653 Double_t signal = signalF.Eval(time) ;
654 if ( static_cast<Int_t>(signal+0.5) > kRawSignalOverflow ){ // larger than 10 bits
655 signal = kRawSignalOverflow ;
656 lowGain = kTRUE ;
657 }
658 adcH[iTime] = static_cast<Int_t>(signal + 0.5) ;
659
660 signalF.SetParameter(0, GetRawFormatLowCharge() ) ;
661 signalF.SetParameter(1, GetRawFormatLowGain() ) ;
662 signal = signalF.Eval(time) ;
663 if ( static_cast<Int_t>(signal+0.5) > kRawSignalOverflow) // larger than 10 bits
664 signal = kRawSignalOverflow ;
665 adcL[iTime] = static_cast<Int_t>(0.5 + signal ) ;
666
046ae904 667 }
56088960 668 return lowGain ;
046ae904 669}