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