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RPC project status. Muon IB 28 February 2012 Pigi Paolucci INFN Napoli & CERN. 2012 Detector start-up. RPC system is ON since a week, how it is working ?. Hardware status. At the moment we have 11 Chambers OFF, same number of 2011 One new single gap chamber in the barrel.

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Rpc project status

RPC project status

Muon IB

28 February 2012

Pigi Paolucci

INFN Napoli & CERN


2012 detector start up

2012 Detector start-up

RPC system is ON since a week, how it is working ?

Muon IB - Pigi Paolucci


Hardware status

Hardware status

  • At the moment we have 11 Chambers OFF, same number of 2011

  • One new single gap chamber in the barrel.

  • 3.5% of dead and masked channels

Muon IB - Pigi Paolucci


Rpc project status

Muon IB - Pigi Paolucci


Current stability during mwgr

Current stability during MWGR

Muon IB - Pigi Paolucci


Noise results from mwgr

Noise results from MWGR

  • Run 185984 (last night, long run): ~1.0% masked channels, ~1.3% dead channels

  • 18 chambers off (5 in the barrel, 13 in the endcap)

  • Average noise ~3 Hz/cm2 (barrel), ~0.3 Hz/cm2 (endcap)

Muon IB - Pigi Paolucci


Few noisy strips in barrel region

Few noisy strips in Barrel region

Muon IB - Pigi Paolucci


Noisy strips from dqm yes is possible

Noisy strips from DQM ? YES is possible

Run 185 984

All hits Plots

ENDCAP

BARREL

from 2 to 25  noise

Muon IB - Pigi Paolucci


Rpc project status

BARREL

Run 185 984

Similar in the 5 wheels

Bottom trigger

Noisy strips/chamber

from DQM tool

Muon IB - Pigi Paolucci


Trigger correlation

Trigger correlation

Muon IB - Pigi Paolucci


2012 open issues and organization

2012 – Open Issues and organization

  • Deputy DPG

    • Karol confirmed, Silvia Costantini (Ghent) new

  • PVT group

    • Marcello Abbrescia is the new coordinator

  • Task force

    • Efficiency method validation

    • HV scan

    • Bakelite production

    • Gas leak studies

Muon IB - Pigi Paolucci


Upgrade summary report

Upgrade Summary Report

  • First batch of Bakelite sheets, produced and tested in Pavia, washed at General Tecnica, is now in Korea

  • Most of the sheets show a dirty surface and cannot be used to produce gaps – Second batch will be followed step by step by our experts (March)

  • 3 Test sites are almost ready

  • New link and control boards have been successfully tested at 904 and installed in the Barrel – We will keep them running

  • Database work is proceeding very well, thanks to Anton, Daniela and new Pakistan experts.

Muon IB - Pigi Paolucci


2011 summary table

2011 Summary table

  • Data Loss for RPC19 pb‐1 – 0.37%

  • Overall Operating Channels98.4%

  • Average Efficiency95%

  • Average Cluster Size< 2

  • Average Noise rate (3 ·1033 cm-2 s-1)1.3 Hz/cm2

  • Max Noise rate (3 ·1033 cm-2 s-1)RE-2/2/C< 7 Hz/cm2

  • Average intrinsic noise (no-beam) ~ 0.1 Hz/cm2

  • Average current (no-beam) ~ 1 mA

  • Average current (with beam) ~ 1.5 mA

  • Temperature< 21.5 oC

Muon IB - Pigi Paolucci


2012 goals and milestones no news

2012 goals and milestones (no news)

  • New efficiency method; test and then in DQM

  • 2012 HV scan and comparison with 2011

  • Background studies at high luminosity (1-5 1033)

  • Background summary results in WBM

  • Automatic PVT

  • Long 2013-2104 shut-down plan definition (July 2012)

  • Gaps and chambers production

  • 904 cosmic stand and laboratory start-up

  • Link and Control board preproduction and test (Feb)

Muon IB - Pigi Paolucci


Dates to remember

Dates to remember

  • Muon Week – 18-21 March – CERN

  • Bakelite production validation – March

  • HV scan – April

  • Long Shut-down workshop – June

Muon IB - Pigi Paolucci


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