Gas systems project

Europe/Zurich
155/R-047 (CERN)

155/R-047

CERN

10
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Beatrice Mandelli (CERN), Frederic Merlet (CERN)

GAS M&O meeting 28 October 2019

Present: Beatrice, Roberto, Michal, Fred, Patrick, Kacper, Andrea, LPh, Mara, Gianluca, Sabino, Federico, Fabio

Indico: https://indico.cern.ch/event/859067/

 

ALICE #no elog

  • MTR

Reminder:

    • Dummy chamber: Arturo will install the pipes in January, gas team will do weld
    • exhaust pressure regulation does not work
    • mixer pressure regulation does not work: Zimmerli not installed
  • TPC

Reminder:

    • LPh to prepare a summary on how the system is now —> this week
  • TRD
    • Rack 66 in error and not selected —> LPh to check

Reminder

    • Purifier: to review if keep the safety valve or the rupture disk
    • Purifier: safety valve at the input where we have Ar or Ar/H2 at high pressure —> LPh to check with safety

 

ATLAS #2036

  • CSC

Reminder:

    • After the power-cut there was not communication with PLC: damage of differential circuit breaker —> to repair
  • MDT

Reminder:

    • Rack 68 (ch 17): one channel is keeping going to zero —> try to change the ELMB
  • General
    • Power-cut due to smoke alarm in SGX1 due to external work
  • RPC
    • Andrei is finishing the pipes
    • This week to send everything to cleaning

 

CMS #2034

  • RPC
    • OFF
    • Anton asked to prepare all dummy chambers
    • Rack 85: problem of pressure sensors in error: problem in the cable (UX-US) —> contacted Anton to change it
    • Feedback valve in exhaust to check —> Patrick: the N2 was closed
    • Commissioning of the software on-going
    • To add filter for pump
  • DT

Reminder:

    • Test for power cut and re-start for the exhaust line —> to do other tests
  • CSC

Reminder:

    • Warning to set-up —> Beatrice/Michal/Roberto
  • GEM
    • Commissioning started: elog 2017
    • Start planned for 4th November: connection of 12 channels GE1/1- from tomorrow

Reminder:

    • To modify the réseaux socket for the GEMPLC (now it is with TOTEM) —> Andrea
    • Control rack: to modify power supply and electrical cable (still with TOTEM) —> Patrick/Michal
    • 1 chamber in purge in CO2
  • R134a recuperation
    • Added line of Air for the R134a recuperation
    • Add line for iC4H10 exhaust this week —> on-going
    • To check for supply of 220 V + 400 V (Lauda) —> Patrick
    • To understand logic in case of presence of leak/iC4H10 —> Roberto/Nicola Broca

 

LHCb #2035

  • RICH1
    • in Run with CO2
  • RICH2
    • need to instal filter but it will arrive mid November: to look for another place before the filter of the exhaust
  • GC
    • PC is working but not the GC —> today company will come to check
  • SciFi
    • Start electrical work
    • Need to stop all system to modify N2 line —> this week

 

PIQUET

  • elog  886
    • Alarm for HH temperature in cloud
  • elog 885
    • ALICE TRD too long injection time: Andrea changed the mixer flow injection to 5h but he said that alarm was still active
    • LPh to verify why we inject for such a long time

 

GENERAL

  • Discussion about to change filter in exhaust with 1 um everywhere
  • R134a presentation by Gianluca
  • Presentation of 3D drawings of CPV Humidifier by Sabino
    • LPh confirmed that all the material is available at the workshop except one festo volume
  • Presentation about regulation valves for CMS RPC by Sabino

 

There are minutes attached to this event. Show them.
    • 1
      R134a Recuperation @ CMS
      Speakers: Federico Consolaro (CERN), Gianluca Rigoletti (Universite Claude Bernard Lyon I (FR))
    • 2
      CMS RPC regulation valves
      Speaker: Sabino Zagaria (Universita & INFN Pisa (IT))
    • 3
      ALICE TPC status
      Speaker: Louis-Philippe De Menezes (CERN)
    • 4
      ALICE CPV Humidifier
      Speaker: Sabino Zagaria (Universita & INFN Pisa (IT))
    • 5
      Piquet interventions

      http://eloggas.cern.ch/GAS_PIQUET/

      Speakers: Andrea D'Auria (CERN), Beatrice Mandelli (CERN), Frederic Merlet (CERN), Louis-Philippe De Menezes (CERN), Patrick Carrie (CERN), Kacper Jerzy Kapusniak (CERN), Michal Zbigniew Zimny (CERN)
    • 6
      Activities on-going
      Speakers: Beatrice Mandelli (CERN), Frederic Merlet (CERN)
    • 7
      Plan of LS2 activities
      Speakers: Beatrice Mandelli (CERN), Frederic Merlet (CERN), Roberto Guida (CERN)
    • Gas systems for the LHC experiments
      • 8
        ALICE
        Speaker: Louis-Philippe De Menezes (CERN)
      • 9
        ATLAS
        Speaker: Kacper Jerzy Kapusniak (CERN)
      • 10
        CMS
        Speaker: Andrea D'Auria (CERN)
      • 11
        LHCb
        Speaker: Patrick Carrie (CERN)
      • 12
        Gas analysis: standard H2O/O2
        Speaker: Louis-Philippe De Menezes (CERN)
      • 13
        Gas web-page

        http://test-gasmonitoring.web.cern.ch
        https://ep-dt-gasanalysis.web.cern.ch

        Speaker: Beatrice Mandelli (CERN)
      • 14
        Software
        Speaker: Michal Zbigniew Zimny (CERN)
    • Gas System developments
      • 15
        Gas System Test-Bench
        Speakers: Fabio Bordon (CERN), Sabino Zagaria (Universita & INFN Pisa (IT))
      • 16
        CMS CF4 recovery
        Speakers: Fabio Bordon (CERN), Mara Corbetta (Universite Claude Bernard Lyon I (FR))
      • 17
        LHCb RICH2 CF4 recuperation
        Speakers: Federico Consolaro (CERN), Mara Corbetta (Universite Claude Bernard Lyon I (FR))
      • 18
        AoB
        Speakers: Fabio Bordon (CERN), Federico Consolaro (CERN), Gianluca Rigoletti (Universite Claude Bernard Lyon I (FR)), Mara Corbetta (Universite Claude Bernard Lyon I (FR)), Sabino Zagaria (Universita & INFN Pisa (IT))
    • 19
      FSU & Jobs status
      Speaker: Frederic Merlet (CERN)
    • 20
      AoB
      Speakers: Andrea D'Auria (CERN), Beatrice Mandelli (CERN), Frederic Merlet (CERN), Louis-Philippe De Menezes (CERN), Patrick Carrie (CERN), Roberto Guida (CERN)