TWiki> LHCb Web>LHCbTechnicalCoordination>ChannelBreakEfficiencyRUNII (2015-05-27, AlessandroCardini) EditAttachPDF
-- RolfLindner - 27-May-2011

Channel efficiency

Sub detectors

Sub Detector Total number of channels December 2012 December 2012 June 2015 June 2015
    missing efficiency [%] missing efficiency [%]
Velo 172032 1340 99.27 1340 99.27
RICH 1 (HPDs) 180 2 98.98 2 98.89
Tracker Turicensis 143360 560 99.61 3193 97.77
Inner Tracker 129024 1664 98.71 1077 99.17
Outer Tracker 53760 80 99.85 5 99.99
RICH 2* (HPDs) 269 0 100 0 100
SPD 6016 72 98.80 0 100
PS 6016 0 100 0 100
ECAL 6016 0 100 0 100
HCAL 1448 0 100 0 100
Muon M1 32256 0 100 0 100
Muon M2-M5 89856 78 99.92 144 99.84

  December 2012 June 2015
Velo 99.27 99.27
RICH 1* (HPDs) 98.98 98.89
Tracker Turicensis 99.61 97.77
Inner Tracker 98.71 99.17
Outer Tracker 99.85 99.99
RICH 2* (HPDs) 100 100
SPD 98.8 100
PS 100 100
ECAL 100 100
HCAL 100 100
Muon M1 100.00 100
Muon* M2-M5 99.92 99.85

*16 HPDs removed in the corners of RICH 1, 19 anodes in RICH 2, but all located on the periphery and therefore do no harm at all (June 2015). * For the muon chambers, now real front-end channels are counted, before any type of OR(ing) -- RolfLindner - 2015-05-13

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Topic revision: r8 - 2015-05-27 - AlessandroCardini
 
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