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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 | 45 | class 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 | |
71 | ClassImp(AliEMCAL) | |
56088960 | 72 | Double_t AliEMCAL::fgCapa = 1.; // 1pF |
73 | Int_t AliEMCAL::fgOrder = 2 ; | |
74 | Double_t AliEMCAL::fgTimeMax = 2.56E-5 ; // each sample is over 100 ns fTimeMax/fTimeBins | |
75 | Double_t AliEMCAL::fgTimePeak = 4.1E-6 ; // 4 micro seconds | |
76 | Double_t AliEMCAL::fgTimeTrigger = 100E-9 ; // 100ns, just for a reference | |
2d5d9e60 | 77 | // some digitization constants |
2d5d9e60 | 78 | Int_t AliEMCAL::fgThreshold = 1; |
4884333f | 79 | Int_t AliEMCAL::fgDDLPerSuperModule = 2; // 2 ddls per SuperModule |
80 | ||
2012850d | 81 | //____________________________________________________________________________ |
18a21c7c | 82 | AliEMCAL::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 | 98 | AliEMCAL::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 | ||
2012850d | 113 | //____________________________________________________________________________ |
05a92d59 | 114 | AliEMCAL::~AliEMCAL() |
115 | { | |
14ce0a6e | 116 | //dtor |
2012850d | 117 | } |
118 | ||
0a4cb131 | 119 | //____________________________________________________________________________ |
7235aed2 | 120 | void 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 | ||
8367ce9a | 133 | //____________________________________________________________________________ |
91e5f344 | 134 | void 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 | //____________________________________________________________________________ | |
210 | AliDigitizer* AliEMCAL::CreateDigitizer(AliRunDigitizer* manager) const | |
211 | { | |
212 | //create and return the digitizer | |
213 | return new AliEMCALDigitizer(manager); | |
214 | } | |
215 | ||
216 | //____________________________________________________________________________ | |
217 | void 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 | 288 | void 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 | ||
2d5d9e60 | 409 | //____________________________________________________________________________ |
410 | void 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 | //____________________________________________________________________________ | |
513 | void 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 | ||
8367ce9a | 577 | //____________________________________________________________________________ |
578 | void 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 | ||
8367ce9a | 588 | //____________________________________________________________________________ |
5dee926e | 589 | |
8367ce9a | 590 | AliLoader* 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 | //__________________________________________________________________ |
599 | Double_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 | 623 | Double_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 | //__________________________________________________________________ | |
631 | Bool_t AliEMCAL::RawSampledResponse( | |
632 | const 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 | } |