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04fa961a | 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 | /* $Id$ */ | |
17 | ||
18 | /////////////////////////////////////////////////////////////////////////////// | |
19 | // // | |
20 | // This class creates and fills the monitor histograms for the ITS // | |
21 | // // | |
22 | /////////////////////////////////////////////////////////////////////////////// | |
23 | ||
5fe305fe | 24 | #include <TFolder.h> |
25 | #include <TTree.h> | |
26 | #include <TVector3.h> | |
04fa961a | 27 | |
7ba8900c | 28 | #include "AliLog.h" |
af885e0f | 29 | #include "AliESDEvent.h" |
7b4414a8 | 30 | #include "AliESDtrack.h" |
04fa961a | 31 | #include "AliITSRawStreamSDD.h" |
32 | #include "AliITSRawStreamSSD.h" | |
33 | #include "AliITSclusterV2.h" | |
5fe305fe | 34 | #include "AliITSgeom.h" |
35 | #include "AliMonitorHisto.h" | |
36 | #include "AliMonitorITS.h" | |
c6ba6205 | 37 | #include "AliRawReader.h" |
5fe305fe | 38 | #include "AliRunLoader.h" |
04fa961a | 39 | |
40 | ClassImp(AliMonitorITS) | |
41 | ||
42 | ||
43 | //_____________________________________________________________________________ | |
17c3cc9e | 44 | AliMonitorITS::AliMonitorITS(AliITSgeom* geom): |
45 | AliMonitor(), | |
46 | fGeom(geom), | |
47 | fSDDDigitsCharge(NULL), | |
48 | fSSDDigitsCharge(NULL), | |
49 | fSDDClustersCharge(NULL), | |
50 | fSSDClustersCharge(NULL), | |
51 | fSPDNClustersVsModule(NULL), | |
52 | fSDDNClustersVsModule(NULL), | |
53 | fSSDNClustersVsModule(NULL), | |
54 | fNClustersVsLayer(NULL), | |
55 | fNTracks(NULL), | |
56 | fNTracksITSTPC(NULL), | |
57 | fTrackPt(NULL), | |
58 | fTrackEta(NULL), | |
59 | fTrackPhi(NULL), | |
60 | fTrackDEdxVsP(NULL) | |
61 | ||
04fa961a | 62 | { |
63 | // create a ITS monitor object with the given geometry | |
64 | ||
04fa961a | 65 | } |
66 | ||
67 | ||
68 | //_____________________________________________________________________________ | |
69 | void AliMonitorITS::CreateHistos(TFolder* folder) | |
70 | { | |
71 | // create the ITS monitor histograms | |
72 | ||
73 | fFolder = folder->AddFolder("ITS", "ITS"); | |
74 | ||
75 | fSDDDigitsCharge = CreateHisto1("SDDDigitsCharge", | |
76 | "charge distribution of SDD digits", | |
77 | 128, 0, 256, "charge", "#Delta N/N", | |
78 | AliMonitorHisto::kNormEvents); | |
79 | ||
80 | fSSDDigitsCharge = CreateHisto1("SSDDigitsCharge", | |
81 | "charge distribution of SSD digits", | |
82 | 100, 0, 200, "charge", "#Delta N/N", | |
83 | AliMonitorHisto::kNormEvents); | |
84 | ||
85 | fSDDClustersCharge = CreateHisto1("SDDClustersCharge", | |
86 | "charge distribution of SDD clusters", | |
87 | 100, 0, 200, "charge", "#Delta N/N", | |
88 | AliMonitorHisto::kNormEvents); | |
89 | ||
90 | fSSDClustersCharge = CreateHisto1("SSDClustersCharge", | |
91 | "charge distribution of SSD clusters", | |
92 | 100, 0, 400, "charge", "#Delta N/N", | |
93 | AliMonitorHisto::kNormEvents); | |
94 | ||
95 | Int_t nModulesSPD = fGeom->GetLastSPD() - fGeom->GetStartSPD() + 1; | |
96 | fSPDNClustersVsModule = CreateHisto1("SPDNClustersVsModule", | |
97 | "mean number of clusters per SPD module", | |
98 | nModulesSPD, -0.5, nModulesSPD-0.5, | |
99 | "module", "<N_{clusters}>", | |
100 | AliMonitorHisto::kNormEvents); | |
101 | ||
102 | Int_t nModulesSDD = fGeom->GetLastSDD() - fGeom->GetStartSDD() + 1; | |
103 | fSDDNClustersVsModule = CreateHisto1("SDDNClustersVsModule", | |
104 | "mean number of clusters per SDD module", | |
105 | nModulesSDD, -0.5, nModulesSDD-0.5, | |
106 | "module", "<N_{clusters}>", | |
107 | AliMonitorHisto::kNormEvents); | |
108 | ||
109 | Int_t nModulesSSD = fGeom->GetLastSSD() - fGeom->GetStartSSD() + 1; | |
110 | fSSDNClustersVsModule = CreateHisto1("SSDNClustersVsModule", | |
111 | "mean number of clusters per SSD module", | |
112 | nModulesSSD, -0.5, nModulesSSD-0.5, | |
113 | "module", "<N_{clusters}>", | |
114 | AliMonitorHisto::kNormEvents); | |
115 | ||
116 | Int_t nLayer = fGeom->GetNlayers(); | |
117 | fNClustersVsLayer = CreateHisto1("NClustersVsLayer", | |
118 | "mean number of clusters per layer", | |
119 | nLayer, 0.5, nLayer+0.5, | |
120 | "layer", "<N_{clusters}>", | |
121 | AliMonitorHisto::kNormEvents); | |
122 | ||
123 | fNTracks = CreateHisto1("NTracks", "number of tracks per event", | |
124 | 300, 0, 30000, "N_{tracks}", "#Delta N/N", | |
125 | AliMonitorHisto::kNormEvents); | |
126 | ||
127 | fNTracksITSTPC = CreateHisto2("NTracksTPCITS", | |
128 | "correlation of number of ITS and TPC tracks per event", | |
129 | 30, 0, 30000, 30, 0, 30000, | |
130 | "N_{tracks}(ITS)", "N_{tracks}(TPC)", | |
131 | "#Delta N/N", AliMonitorHisto::kNormEvents); | |
132 | ||
133 | fTrackPt = CreateHisto1("TrackPt", "pt distribution of tracks", | |
134 | 90, 0, 3, "p_{t} [GeV/c]", "#Delta N/N", | |
135 | AliMonitorHisto::kNormEntries); | |
136 | ||
137 | fTrackEta = CreateHisto1("TrackEta", "eta distribution of tracks", | |
138 | 100, -2, 2, "#eta", "#Delta N/N", | |
139 | AliMonitorHisto::kNormEntries); | |
140 | ||
141 | fTrackPhi = CreateHisto1("TrackPhi", "phi distribution of tracks", | |
b6a3610d | 142 | 120, -180, 180, "#phi [#circ]", "#Delta N/N", |
04fa961a | 143 | AliMonitorHisto::kNormEntries); |
144 | ||
145 | fTrackDEdxVsP = CreateHisto2("TrackDEdxVsP", "dE/dx of tracks", | |
146 | 100, 0, 3, 100, 0, 150, | |
147 | "p [GeV/c]", "dE/dx", "#Delta N/N", | |
148 | AliMonitorHisto::kNormEntries); | |
149 | } | |
150 | ||
151 | ||
152 | //_____________________________________________________________________________ | |
153 | void AliMonitorITS::FillHistos(AliRunLoader* runLoader, | |
af885e0f | 154 | AliRawReader* rawReader, AliESDEvent* esd) |
04fa961a | 155 | { |
156 | // fill the ITS monitor histogrms | |
157 | ||
158 | rawReader->Reset(); | |
159 | AliITSRawStreamSDD inputSDD(rawReader); | |
160 | while (inputSDD.Next()) { | |
161 | fSDDDigitsCharge->Fill(inputSDD.GetSignal()); | |
162 | } | |
163 | ||
164 | rawReader->Reset(); | |
165 | AliITSRawStreamSSD inputSSD(rawReader); | |
166 | while (inputSSD.Next()) { | |
167 | fSSDDigitsCharge->Fill(inputSSD.GetSignal()); | |
168 | } | |
169 | ||
170 | AliLoader* itsLoader = runLoader->GetLoader("ITSLoader"); | |
171 | if (!itsLoader) return; | |
172 | ||
173 | ||
174 | itsLoader->LoadRecPoints(); | |
175 | TTree* clustersTree = itsLoader->TreeR(); | |
176 | if (!clustersTree) return; | |
177 | TClonesArray* clusters = new TClonesArray("AliITSclusterV2"); | |
178 | clustersTree->SetBranchAddress("Clusters", &clusters); | |
179 | ||
180 | for (Int_t iModule = 0; iModule < clustersTree->GetEntries(); iModule++) { | |
181 | clustersTree->GetEntry(iModule); | |
182 | Int_t iLayer, iLadder, iDetector; | |
183 | fGeom->GetModuleId(iModule, iLayer, iLadder, iDetector); | |
184 | ||
185 | for (Int_t j = 0; j < clusters->GetEntriesFast(); j++) { | |
186 | AliITSclusterV2* cluster = (AliITSclusterV2*) clusters->At(j); | |
187 | switch (iLayer) { | |
188 | case 1: case 2: { | |
189 | fSPDNClustersVsModule->Fill(iModule - fGeom->GetStartSPD()); | |
190 | break; | |
191 | } | |
192 | case 3: case 4: { | |
193 | fSDDClustersCharge->Fill(cluster->GetQ()); | |
194 | fSDDNClustersVsModule->Fill(iModule - fGeom->GetStartSDD()); | |
195 | break; | |
196 | } | |
197 | case 5: case 6: { | |
198 | fSSDClustersCharge->Fill(cluster->GetQ()); | |
199 | fSSDNClustersVsModule->Fill(iModule - fGeom->GetStartSSD()); | |
200 | break; | |
201 | } | |
202 | } | |
203 | fNClustersVsLayer->Fill(iLayer); | |
204 | } | |
205 | } | |
206 | ||
207 | delete clusters; | |
208 | itsLoader->UnloadRecPoints(); | |
209 | ||
210 | ||
b6a3610d | 211 | Int_t nTracks = 0; |
212 | Int_t nTPCTracks = 0; | |
213 | for (Int_t i = 0; i < esd->GetNumberOfTracks(); i++) { | |
214 | AliESDtrack* track = esd->GetTrack(i); | |
215 | if (!track) continue; | |
216 | if ((track->GetStatus() | AliESDtrack::kTPCin) != 0) nTPCTracks++; | |
217 | if ((track->GetStatus() | AliESDtrack::kITSin) == 0) continue; | |
218 | nTracks++; | |
219 | ||
220 | Double_t pxyz[3]; | |
221 | track->GetPxPyPz(pxyz); | |
222 | TVector3 pTrack(pxyz); | |
223 | fTrackPt->Fill(pTrack.Pt()); | |
224 | fTrackEta->Fill(pTrack.Eta()); | |
225 | fTrackPhi->Fill(pTrack.Phi() * TMath::RadToDeg()); | |
226 | fTrackDEdxVsP->Fill(pTrack.Mag(), track->GetITSsignal()); | |
04fa961a | 227 | } |
b6a3610d | 228 | fNTracks->Fill(nTracks); |
229 | fNTracksITSTPC->Fill(nTracks, nTPCTracks); | |
04fa961a | 230 | } |