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