]>
Commit | Line | Data |
---|---|---|
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 | ||
102e9e9c | 37 | #include "AliLog.h" |
66d2ede1 | 38 | #include "AliFMDDigitizer.h" |
39 | #include "AliFMD.h" | |
66d2ede1 | 40 | #include "AliFMDhit.h" |
41 | #include "AliFMDdigit.h" | |
42 | #include "AliRunDigitizer.h" | |
43 | ||
44 | #include "AliRun.h" | |
88cb7938 | 45 | #include "AliLoader.h" |
46 | #include "AliRunLoader.h" | |
66d2ede1 | 47 | |
48 | #include <stdlib.h> | |
93bdec82 | 49 | #include <Riostream.h> |
50 | #include <Riostream.h> | |
66d2ede1 | 51 | |
52 | ClassImp(AliFMDDigitizer) | |
53 | ||
54 | //___________________________________________ | |
55 | AliFMDDigitizer::AliFMDDigitizer() :AliDigitizer() | |
56 | { | |
57 | // Default ctor - don't use it | |
58 | ; | |
59 | } | |
60 | ||
61 | //___________________________________________ | |
62 | AliFMDDigitizer::AliFMDDigitizer(AliRunDigitizer* manager) | |
63 | :AliDigitizer(manager) | |
64 | { | |
383238cf | 65 | // ctor which should be used |
66 | // fDebug =0; | |
102e9e9c | 67 | AliDebug(1," processed"); |
66d2ede1 | 68 | } |
69 | ||
70 | //------------------------------------------------------------------------ | |
71 | AliFMDDigitizer::~AliFMDDigitizer() | |
72 | { | |
73 | // Destructor | |
3d44ce66 | 74 | |
66d2ede1 | 75 | } |
76 | ||
77 | //------------------------------------------------------------------------ | |
88cb7938 | 78 | Bool_t AliFMDDigitizer::Init() |
66d2ede1 | 79 | { |
88cb7938 | 80 | // Initialization |
f540341d | 81 | // cout<<"AliFMDDigitizer::Init"<<endl; |
66d2ede1 | 82 | return kTRUE; |
83 | } | |
84 | ||
88cb7938 | 85 | |
66d2ede1 | 86 | //--------------------------------------------------------------------- |
87 | ||
383238cf | 88 | void AliFMDDigitizer::Exec(Option_t * /*option*/) |
66d2ede1 | 89 | { |
88cb7938 | 90 | |
ab256e65 | 91 | /* |
92 | Conver hits to digits: | |
93 | - number of detector; | |
94 | - number of ring; | |
95 | - number of sector; | |
96 | - ADC signal in this channel | |
97 | */ | |
66d2ede1 | 98 | |
88cb7938 | 99 | AliRunLoader *inRL, *outRL;//in and out Run Loaders |
3d44ce66 | 100 | AliLoader *pInFMD, *pOutFMD;// in and out ITSLoaders |
88cb7938 | 101 | |
102 | outRL = AliRunLoader::GetRunLoader(fManager->GetOutputFolderName()); | |
3d44ce66 | 103 | pOutFMD = outRL->GetLoader("FMDLoader"); |
104 | ||
66d2ede1 | 105 | |
102e9e9c | 106 | AliDebug(1," start..."); |
66d2ede1 | 107 | |
66d2ede1 | 108 | |
88cb7938 | 109 | Int_t volume, sector, ring, charge; |
4110645f | 110 | Float_t e; |
88cb7938 | 111 | Float_t de[10][50][520]; |
4110645f | 112 | Int_t hit; |
66d2ede1 | 113 | Int_t digit[5]; |
114 | Int_t ivol, iSector, iRing; | |
115 | for (Int_t i=0; i<10; i++) | |
116 | for(Int_t j=0; j<50; j++) | |
88cb7938 | 117 | for(Int_t ij=0; ij<520; ij++) |
118 | de[i][j][ij]=0; | |
3d44ce66 | 119 | Int_t numberOfRings[5]= {512,256,512,256,512}; |
120 | Int_t numberOfSector[5] = {20,40,20,40,20}; | |
66d2ede1 | 121 | |
4110645f | 122 | AliFMDhit *fmdHit=0; |
383238cf | 123 | TTree *tH=0; |
4110645f | 124 | TBranch *brHits=0; |
88cb7938 | 125 | TBranch *brD=0; |
4110645f | 126 | |
88cb7938 | 127 | inRL = AliRunLoader::GetRunLoader(fManager->GetInputFolderName(0)); |
3d44ce66 | 128 | |
88cb7938 | 129 | if (inRL == 0x0) |
130 | { | |
102e9e9c | 131 | AliError("Can not find Run Loader for input stream 0"); |
88cb7938 | 132 | return; |
133 | } | |
88cb7938 | 134 | |
f540341d | 135 | if (!inRL->GetAliRun()) inRL->LoadgAlice(); |
88cb7938 | 136 | |
137 | AliFMD * fFMD = (AliFMD *) inRL->GetAliRun()->GetDetector("FMD"); | |
3d44ce66 | 138 | |
88cb7938 | 139 | if (fFMD == 0x0) |
140 | { | |
102e9e9c | 141 | AliError("Can not get FMD from gAlice"); |
88cb7938 | 142 | return; |
143 | } | |
66d2ede1 | 144 | // Loop over files to digitize |
145 | ||
4110645f | 146 | Int_t nFiles=GetManager()->GetNinputs(); |
88cb7938 | 147 | for (Int_t inputFile=0; inputFile<nFiles;inputFile++) |
148 | { | |
3d44ce66 | 149 | |
102e9e9c | 150 | AliDebug(1,Form(" Digitizing event number %d",fManager->GetOutputEventNr())); |
3d44ce66 | 151 | |
4110645f | 152 | if (fFMD) |
88cb7938 | 153 | { |
154 | ||
155 | inRL = AliRunLoader::GetRunLoader(fManager->GetInputFolderName(inputFile)); | |
3d44ce66 | 156 | pInFMD = inRL->GetLoader("FMDLoader"); |
157 | pInFMD->LoadHits("READ"); | |
88cb7938 | 158 | |
159 | ||
3d44ce66 | 160 | tH = pInFMD->TreeH(); |
383238cf | 161 | if (tH == 0x0) |
88cb7938 | 162 | { |
3d44ce66 | 163 | pInFMD->LoadHits("read"); |
164 | tH = pInFMD->TreeH(); | |
88cb7938 | 165 | } |
383238cf | 166 | brHits = tH->GetBranch("FMD"); |
4110645f | 167 | if (brHits) { |
88cb7938 | 168 | fFMD->SetHitsAddressBranch(brHits); |
4110645f | 169 | }else{ |
102e9e9c | 170 | AliFatal("Branch FMD hit not found"); |
46501dfb | 171 | } |
383238cf | 172 | TClonesArray *fFMDhits = fFMD->Hits (); |
46501dfb | 173 | |
383238cf | 174 | Int_t ntracks = (Int_t) tH->GetEntries(); |
3d44ce66 | 175 | |
88cb7938 | 176 | for (Int_t track = 0; track < ntracks; track++) |
177 | { | |
178 | brHits->GetEntry(track); | |
383238cf | 179 | Int_t nhits = fFMDhits->GetEntries (); |
3d44ce66 | 180 | |
88cb7938 | 181 | for (hit = 0; hit < nhits; hit++) |
182 | { | |
383238cf | 183 | fmdHit = (AliFMDhit *) fFMDhits->UncheckedAt(hit); |
88cb7938 | 184 | |
185 | volume = fmdHit->Volume (); | |
186 | sector = fmdHit->NumberOfSector (); | |
187 | ring = fmdHit->NumberOfRing (); | |
188 | e = fmdHit->Edep (); | |
189 | de[volume][sector][ring] += e; | |
3d44ce66 | 190 | |
88cb7938 | 191 | } //hit loop |
192 | } //track loop | |
193 | } | |
194 | //if FMD | |
5d77991f | 195 | } |
66d2ede1 | 196 | |
4110645f | 197 | |
66d2ede1 | 198 | // Put noise and make ADC signal |
383238cf | 199 | Float_t mipI = 1.664 * 0.04 * 2.33 / 22400; // = 6.923e-6; |
88cb7938 | 200 | for ( ivol=1; ivol<=5; ivol++){ |
383238cf | 201 | for ( iSector=1; iSector<=numberOfSector[ivol-1]; iSector++){ |
202 | for ( iRing=1; iRing<=numberOfRings[ivol-1]; iRing++){ | |
88cb7938 | 203 | digit[0]=ivol; |
204 | digit[1]=iSector; | |
205 | digit[2]=iRing; | |
383238cf | 206 | charge = Int_t (de[ivol][iSector][iRing] / mipI); |
88cb7938 | 207 | Int_t pedestal=Int_t(gRandom->Gaus(500,250)); |
208 | // digit[3]=PutNoise(charge); | |
209 | digit[3]=charge + pedestal; | |
210 | if(digit[3]<= 500) digit[3]=500; | |
66d2ede1 | 211 | //dynamic range from MIP(0.155MeV) to 30MIP(4.65MeV) |
212 | //1024 ADC channels | |
88cb7938 | 213 | Float_t channelWidth=(22400*50)/1024; |
214 | digit[4]=Int_t(digit[3]/channelWidth); | |
215 | if (digit[4]>1024) digit[4]=1024; | |
216 | fFMD->AddDigit(digit); | |
217 | } //ivol | |
218 | } //iSector | |
219 | } //iRing | |
220 | ||
5d77991f | 221 | pOutFMD->LoadDigits("update"); |
3d44ce66 | 222 | TTree* treeD = pOutFMD->TreeD(); |
223 | ||
88cb7938 | 224 | if (treeD == 0x0) { |
3d44ce66 | 225 | pOutFMD->MakeTree("D"); |
226 | treeD = pOutFMD->TreeD(); | |
227 | ||
88cb7938 | 228 | } |
3d44ce66 | 229 | |
88cb7938 | 230 | treeD->Reset(); |
231 | fFMD->MakeBranchInTreeD(treeD); | |
232 | brD = treeD->GetBranch("FMD"); | |
3d44ce66 | 233 | |
88cb7938 | 234 | |
5d77991f | 235 | treeD->Fill(); |
3d44ce66 | 236 | |
237 | pOutFMD->WriteDigits("OVERWRITE"); | |
238 | pOutFMD->UnloadHits(); | |
5d77991f | 239 | pOutFMD->UnloadDigits(); |
240 | fFMD->ResetDigits(); | |
66d2ede1 | 241 | } |
88cb7938 | 242 | |
243 | ||
244 | ||
245 | ||
66d2ede1 | 246 |