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32/1-A24 (CERN)

32/1-A24

CERN

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Gas systems
Zoom Meeting ID
62095888225
Host
Beatrice Mandelli
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  • This is something reported or discussed
  • [ ] This is something to do
  • [x] This is something done

Maintenance

  • Presentation of Filippo

Recuperation systems

  • Presentation of Amin
    • [x] How much energy is required to recuperate a certain amount of SF6
    • [ ] Exercise: do estimation of power consumption also for R-134a
    • [ ] Exercise: estimate real consumptions
    • [ ] Check at which temperatures one should operate the R-134a recuperation system if we recover the 87 ln/h of
    • Discussion about low pressure and high reflux ratio
    • [ ] Electrical part to be finished and control system tested (Patrick, Andrea, Gianluca)
  • Presentation of MCA
    • [x] Check if 3% of Air is only N2 or also O2. The purifier should remove O2
    • [x] Once analysis is done to publish on analyses websites
    • [ ] Check if between 2022→2023 the Air amount was as current YETS
    • [x] Restart the R-134a one on Monday
    • Issue with R-134a recuperation on column 2, 3 not filling
    • [ ] Increase the temperature for the weekend and keep high flow
  • [ ] Test absorber 13X for SF6/N2 separation (MCA)
  • [ ] Check of using 256 RPC mixer to do the tests

RPC Lab 256

  • [x] Check empty bottles to send back
  • [x] Gas bottles: check for Ar + ppm of O2 or H2O for uRWELL characterization. Not ordering now, just to check availability (Stef)
  • [ ] For each bottle check the price (Stef)
  • [ ] Mixer check for speeding
  • All the gas from China arrived (Mattia)
  • Humidifier is dismounted for the moment to be put in the new rack (Mattia, Stef)
  • Review of the status of the gaps (Mattia, Stef)
  • Presentation of the ECOGAS RPC6 rate measured with pad (Mattia)
    • [x] Check again the plot for the pad
    • [x] Check for charge distribution
  • [ ] Start with 30% CO2 to check currents and efficiency for GIF detectors (Stef)
    • [ ] Compare the efficiency with last test beam
    • [ ] Compare the currents with the last HV scan done at GIF++
  • [x] HFC test: summary slides of R-32 (Stef)
  • [ ] Check about re-oiling ECOGAS RPC 6

Analyses

  • Test on RICH2 purifier done (MCA, Pieter)
  • [ ] ISE measurements in ALICE: start couple of weeks before the run for having a reference (MCA, Mattia)
  • [x] Check alternatives to Emerson for IR ⇒ Stef, MCA
  • [ ] Discuss with Ivan about presenting to the CMS mechanics conference
  • [ ] LHCB RICH1 check the results about the tests of how much Air was present during the purifier emptying
  • [ ] Software related: publish data from ALICE MID GC (Gian, PIeter)
  • [ ] Follow up with Florian for UV-VIS analyses → Gian to send invitation

Other

  • [x] Ask LPh for help to clean up 256 and organize the space
  • [x] GCMS: problems in connecting from PC. Ip address changed
  • [ ] Mixer from ETH ⇒ sending a volume filled instead
  • [ ] Check CPV water and eventually go with the endoscope

RPC GIF

  • Cables ordered
  • HV connectors ordered
  • [x] Test again F- accumulation on the gas system
  • No difference in F- accumulation at GIF
  • Accumulation was not 0 before christmas ⇒ there was the humidifier
  • [ ] To start flushing N2
  • [ ] Change HV cables ⇒ waiting to resolve
  • [x] Restart at GIF changing the HV module and board

uRWELL

  • [x] Finish commissioning of mixer/gas system and monitoring
  • [ ] Perform initial HV scans with premixed bottle ⇒ start with premixed bottle with CF4
  • [ ] Start using the available radioactive sources
  • [ ] Check with RP the implications of having an X ray gun (Stef)
  • [ ] Check for the reading of the signal

GLASS RPC

  • [ ] Make a summary of the material needed to build them

ISE R&D

  • [x] Take the material from 904
  • [ ] Follow up measurements of ATLAS RPC

uLOOP

  • [x] Check with Pieter and Stef the code
  • [x] Order the cheap filter ⇒ price quotation requested
  • [x] Start drawing the electrical schema for Jonathan (Stef)
  • [x] Mechanical support to be used for EEE (Pieter, Stef)
  • [ ] Ask Daniel which humidity sensor they have in DT (Gian)
  • [x] Check the filters for the Tracker GC in CMS (MCA)
  • [x] Set meeting with David
  • Ordered luminox

Novec humidity test setup

Software (from old meeting)

  • [ ] Organize the required work for a possible rewrite of the backend of olefin
    • [ ] Understand how to organize gitlab
  • [ ] Organize the storage of the data in a new dataframe
    • [ ] For muon signals
    • [ ] For gamma signals
  • [ ] Signal level calculations
    • [ ] Simple: simple baseline, time, charge of a peak
    • [ ] To study: advanced baseline calculation
    • [ ] After pulses count
    • [ ] Avalanche and streamer charge integration and separation
    • [ ] Try to calculate charge of each gamma signal
  • [ ] Aggregating statistics calculations
    • [ ] calculate features only from central strips
    • [ ] Gamma cluster rate calculations
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