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487d9746 | 1 | /************************************************************************** |
66d2ede1 | 2 | * Copyright(c) 1998-2000, 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 | ||
383238cf | 16 | ////////////////////////////////////////////////////////////////////////////// |
17 | // // | |
18 | // Forward Multiplicity Detector based on Silicon plates // | |
19 | // This class contains the procedures simulation ADC signal for // | |
20 | // the Forward Multiplicity detector : hits -> digits // | |
21 | // ADC signal consists // | |
22 | // - number of detector; // | |
23 | // - number of ring; // | |
24 | // - number of sector; // | |
25 | // - ADC signal in this channel // | |
26 | // // | |
27 | ////////////////////////////////////////////////////////////////////////////// | |
66d2ede1 | 28 | |
29 | #include <TTree.h> | |
30 | #include <TVector.h> | |
31 | #include <TObjArray.h> | |
32 | #include <TFile.h> | |
33 | #include <TDirectory.h> | |
34 | #include <TRandom.h> | |
35 | ||
36 | ||
37 | #include "AliFMDDigitizer.h" | |
38 | #include "AliFMD.h" | |
66d2ede1 | 39 | #include "AliFMDhit.h" |
40 | #include "AliFMDdigit.h" | |
41 | #include "AliRunDigitizer.h" | |
42 | ||
43 | #include "AliRun.h" | |
88cb7938 | 44 | #include "AliLoader.h" |
45 | #include "AliRunLoader.h" | |
66d2ede1 | 46 | |
47 | #include <stdlib.h> | |
93bdec82 | 48 | #include <Riostream.h> |
49 | #include <Riostream.h> | |
66d2ede1 | 50 | |
51 | ClassImp(AliFMDDigitizer) | |
52 | ||
53 | //___________________________________________ | |
54 | AliFMDDigitizer::AliFMDDigitizer() :AliDigitizer() | |
55 | { | |
56 | // Default ctor - don't use it | |
57 | ; | |
58 | } | |
59 | ||
60 | //___________________________________________ | |
61 | AliFMDDigitizer::AliFMDDigitizer(AliRunDigitizer* manager) | |
62 | :AliDigitizer(manager) | |
63 | { | |
383238cf | 64 | // ctor which should be used |
65 | // fDebug =0; | |
355f0d50 | 66 | #ifdef DEBUG |
3d44ce66 | 67 | Info("AliFMDDigitizer"," processed"); |
487d9746 | 68 | #endif |
66d2ede1 | 69 | } |
70 | ||
71 | //------------------------------------------------------------------------ | |
72 | AliFMDDigitizer::~AliFMDDigitizer() | |
73 | { | |
74 | // Destructor | |
3d44ce66 | 75 | |
66d2ede1 | 76 | } |
77 | ||
78 | //------------------------------------------------------------------------ | |
88cb7938 | 79 | Bool_t AliFMDDigitizer::Init() |
66d2ede1 | 80 | { |
88cb7938 | 81 | // Initialization |
f540341d | 82 | // cout<<"AliFMDDigitizer::Init"<<endl; |
66d2ede1 | 83 | return kTRUE; |
84 | } | |
85 | ||
88cb7938 | 86 | |
66d2ede1 | 87 | //--------------------------------------------------------------------- |
88 | ||
383238cf | 89 | void AliFMDDigitizer::Exec(Option_t * /*option*/) |
66d2ede1 | 90 | { |
88cb7938 | 91 | |
ab256e65 | 92 | /* |
93 | Conver hits to digits: | |
94 | - number of detector; | |
95 | - number of ring; | |
96 | - number of sector; | |
97 | - ADC signal in this channel | |
98 | */ | |
66d2ede1 | 99 | |
88cb7938 | 100 | AliRunLoader *inRL, *outRL;//in and out Run Loaders |
3d44ce66 | 101 | AliLoader *pInFMD, *pOutFMD;// in and out ITSLoaders |
88cb7938 | 102 | |
103 | outRL = AliRunLoader::GetRunLoader(fManager->GetOutputFolderName()); | |
3d44ce66 | 104 | pOutFMD = outRL->GetLoader("FMDLoader"); |
105 | ||
66d2ede1 | 106 | |
107 | #ifdef DEBUG | |
3d44ce66 | 108 | Info("Hits2Digits Exec"," start..."; |
66d2ede1 | 109 | #endif |
110 | ||
66d2ede1 | 111 | |
88cb7938 | 112 | Int_t volume, sector, ring, charge; |
4110645f | 113 | Float_t e; |
88cb7938 | 114 | Float_t de[10][50][520]; |
4110645f | 115 | Int_t hit; |
66d2ede1 | 116 | Int_t digit[5]; |
117 | Int_t ivol, iSector, iRing; | |
118 | for (Int_t i=0; i<10; i++) | |
119 | for(Int_t j=0; j<50; j++) | |
88cb7938 | 120 | for(Int_t ij=0; ij<520; ij++) |
121 | de[i][j][ij]=0; | |
3d44ce66 | 122 | Int_t numberOfRings[5]= {512,256,512,256,512}; |
123 | Int_t numberOfSector[5] = {20,40,20,40,20}; | |
66d2ede1 | 124 | |
4110645f | 125 | AliFMDhit *fmdHit=0; |
383238cf | 126 | TTree *tH=0; |
4110645f | 127 | TBranch *brHits=0; |
88cb7938 | 128 | TBranch *brD=0; |
4110645f | 129 | |
88cb7938 | 130 | inRL = AliRunLoader::GetRunLoader(fManager->GetInputFolderName(0)); |
3d44ce66 | 131 | |
88cb7938 | 132 | if (inRL == 0x0) |
133 | { | |
134 | Error("Exec","Can not find Run Loader for input stream 0"); | |
135 | return; | |
136 | } | |
88cb7938 | 137 | |
f540341d | 138 | if (!inRL->GetAliRun()) inRL->LoadgAlice(); |
88cb7938 | 139 | |
140 | AliFMD * fFMD = (AliFMD *) inRL->GetAliRun()->GetDetector("FMD"); | |
3d44ce66 | 141 | |
88cb7938 | 142 | if (fFMD == 0x0) |
143 | { | |
144 | Error("Exec","Can not get FMD from gAlice"); | |
145 | return; | |
146 | } | |
66d2ede1 | 147 | // Loop over files to digitize |
148 | ||
4110645f | 149 | Int_t nFiles=GetManager()->GetNinputs(); |
88cb7938 | 150 | for (Int_t inputFile=0; inputFile<nFiles;inputFile++) |
151 | { | |
3d44ce66 | 152 | |
153 | #ifdef DEBUG | |
154 | Info(" Digitizing event number ",fManager->GetOutputEventNr()) ; | |
155 | #endif | |
156 | ||
4110645f | 157 | if (fFMD) |
88cb7938 | 158 | { |
159 | ||
160 | inRL = AliRunLoader::GetRunLoader(fManager->GetInputFolderName(inputFile)); | |
3d44ce66 | 161 | pInFMD = inRL->GetLoader("FMDLoader"); |
162 | pInFMD->LoadHits("READ"); | |
88cb7938 | 163 | |
164 | ||
3d44ce66 | 165 | tH = pInFMD->TreeH(); |
383238cf | 166 | if (tH == 0x0) |
88cb7938 | 167 | { |
3d44ce66 | 168 | pInFMD->LoadHits("read"); |
169 | tH = pInFMD->TreeH(); | |
88cb7938 | 170 | } |
383238cf | 171 | brHits = tH->GetBranch("FMD"); |
4110645f | 172 | if (brHits) { |
88cb7938 | 173 | fFMD->SetHitsAddressBranch(brHits); |
4110645f | 174 | }else{ |
88cb7938 | 175 | Fatal("Exec","EXEC Branch FMD hit not found"); |
46501dfb | 176 | } |
383238cf | 177 | TClonesArray *fFMDhits = fFMD->Hits (); |
46501dfb | 178 | |
383238cf | 179 | Int_t ntracks = (Int_t) tH->GetEntries(); |
3d44ce66 | 180 | |
88cb7938 | 181 | for (Int_t track = 0; track < ntracks; track++) |
182 | { | |
183 | brHits->GetEntry(track); | |
383238cf | 184 | Int_t nhits = fFMDhits->GetEntries (); |
3d44ce66 | 185 | |
88cb7938 | 186 | for (hit = 0; hit < nhits; hit++) |
187 | { | |
383238cf | 188 | fmdHit = (AliFMDhit *) fFMDhits->UncheckedAt(hit); |
88cb7938 | 189 | |
190 | volume = fmdHit->Volume (); | |
191 | sector = fmdHit->NumberOfSector (); | |
192 | ring = fmdHit->NumberOfRing (); | |
193 | e = fmdHit->Edep (); | |
194 | de[volume][sector][ring] += e; | |
3d44ce66 | 195 | |
88cb7938 | 196 | } //hit loop |
197 | } //track loop | |
198 | } | |
199 | //if FMD | |
66d2ede1 | 200 | |
4110645f | 201 | |
66d2ede1 | 202 | // Put noise and make ADC signal |
383238cf | 203 | Float_t mipI = 1.664 * 0.04 * 2.33 / 22400; // = 6.923e-6; |
88cb7938 | 204 | for ( ivol=1; ivol<=5; ivol++){ |
383238cf | 205 | for ( iSector=1; iSector<=numberOfSector[ivol-1]; iSector++){ |
206 | for ( iRing=1; iRing<=numberOfRings[ivol-1]; iRing++){ | |
88cb7938 | 207 | digit[0]=ivol; |
208 | digit[1]=iSector; | |
209 | digit[2]=iRing; | |
383238cf | 210 | charge = Int_t (de[ivol][iSector][iRing] / mipI); |
88cb7938 | 211 | Int_t pedestal=Int_t(gRandom->Gaus(500,250)); |
212 | // digit[3]=PutNoise(charge); | |
213 | digit[3]=charge + pedestal; | |
214 | if(digit[3]<= 500) digit[3]=500; | |
66d2ede1 | 215 | //dynamic range from MIP(0.155MeV) to 30MIP(4.65MeV) |
216 | //1024 ADC channels | |
88cb7938 | 217 | Float_t channelWidth=(22400*50)/1024; |
218 | digit[4]=Int_t(digit[3]/channelWidth); | |
219 | if (digit[4]>1024) digit[4]=1024; | |
220 | fFMD->AddDigit(digit); | |
221 | } //ivol | |
222 | } //iSector | |
223 | } //iRing | |
224 | ||
3d44ce66 | 225 | TTree* treeD = pOutFMD->TreeD(); |
226 | ||
88cb7938 | 227 | if (treeD == 0x0) { |
3d44ce66 | 228 | pOutFMD->MakeTree("D"); |
229 | treeD = pOutFMD->TreeD(); | |
230 | ||
88cb7938 | 231 | } |
3d44ce66 | 232 | |
88cb7938 | 233 | treeD->Reset(); |
234 | fFMD->MakeBranchInTreeD(treeD); | |
235 | brD = treeD->GetBranch("FMD"); | |
3d44ce66 | 236 | |
88cb7938 | 237 | |
238 | treeD->Fill(); //this operator does not work for events >1 | |
3d44ce66 | 239 | |
240 | pOutFMD->WriteDigits("OVERWRITE"); | |
241 | pOutFMD->UnloadHits(); | |
242 | inRL->GetAliRun() ->ResetDigits(); | |
88cb7938 | 243 | } |
66d2ede1 | 244 | } |
88cb7938 | 245 | |
246 | ||
247 | ||
248 | ||
66d2ede1 | 249 |