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Weekly Meeting

→ Europe/Rome
Davide Fiorina (GSSI & INFN)
Description

https://cern.zoom.us/j/9553247390

Rolling Report

    • 09:00 → 09:01
      Previous week recap 1m
      Speaker: Davide Fiorina (GSSI & INFN)

      Davide Pinci
      - CSN2: confirm first draft delivered (or remaining points).
      - CERN shipment: status/ETA of chips for Herman.
      - Bussetti gas-flange: channel diameter provided/confirmed.
      - GEM radioactivity: outcome of cross-check with Giulia.

      Davide Fiorina
      - Source flange: cross-check outcome with Filippo/Cesidio and next action.
      - Cathode frame (Nylon66): status after straightening attempt.
      - GEM stack assembly: result of Wednesday slot + remaining blockers.
      - Gas system: repeated test outcome (LIME-only leaks confirmation).
      - Hall F: progress on SS flange redesign, dewar wheel adapter, and HV cable procurement.
      - Procurement/admin: Nylon66 fittings ETA; humidity/O₂ sensors; Rometec + NIER PRA(LN) updates.
      - Polyethylene from DarkSide: status with A. Ianni.
      - Papers: HFO changes implemented + submitted to PubComm; directionality first draft completed.
      - Simulation: meeting with Giulia on CAD update path (done + concrete next steps).

      Giorgio Dho
      - Feedback from AU on limits code (Ciaran) + any new tasks.
      - GitHub task/subtask structure: status and how the team should use it.
      - Gas providers: any updates.
      - PMMA screw-tightening: confirmation of procedure/test results + documentation.

      Stefano Piacentini
      - WP5 weekly meeting: first Tuesday meeting happened? key outcomes/actions.
      - Krypton source feasibility: preliminary results / next steps.
      - “Single module both sides”: status/timeline from Herman.
      - LIME data upload to cloud: progress/what is still missing.

      Giulia D'Imperio
      - HPGe vs ICP-MS inconsistency: current understanding and proposed resolution path.
      - CAD-to-Geant4 update: status with Davide F. (version, changes needed, timeline).
      - Fiducialization simulations requested by Giorgio: plan + any first results.
      - Simulation meeting outcomes (today 14:00): key decisions/action items.

    • 09:01 → 09:02
      DavideP report 1m
      Speaker: Davide Pinci (Istituto Nazionale di Fisica Nucleare)
      • CSN2: by today a second draft will be online.
      • CERN shipment for Herman: 
        • first tranche on his way to CERN (http://wwwapps.ups.com/WebTracking/track?track=yes&trackNums=1Z5482R70401106023),
        • second tranche will be ordered today. Luigi could bring them back.
      •  Bussetti:
        • gas-flange: drawing diameter provided;
        • source and HV flange to be machined this week (11/02 or 12/02);
        • discovered that only 6 mm optical windows were provided by mistake;
      • Rometech: news on gas fitting hopefully by this week and then we organise a panda-based pick-up
      • PE: custom documents found, we can start the custom procedure to send them to Fantini for polishing
      • Ok from RM1 director to host 1 ton of LIME copper
    • 09:02 → 09:03
      Elisabetta report 1m
      Speaker: Elisabetta Baracchini (Istituto Nazionale di Fisica Nucleare)
    • 09:03 → 09:04
      DavideF report 1m
      Speaker: Davide Fiorina (GSSI & INFN)

      Minutes – Weekly Meeting

      Procurement / Contracts / Logistics

      • Order of humidity and O₂ sensors: still need to collect quotes.
      • GSSI concluded the procedure with NIER to start the update of the Preliminary Risk Analysis (PRA).
      • Next step: I will contact NIER to start the evaluation.
      • The affidamento a consumo process with Rometec has finally started.
      • No news on the delivery date for the urgent fitting needed for the PMMA box test.
      • DarkSide polyethylene: thanks to DavideP we finally obtained the customs (“douane”) documents.
      • Next steps: agree with Fantini on dates for cleaning the polyethylene and start the customs procedure for the material.

      Infrastructure / Hall F Works

      • This week the LNGS workshop will start to work on the HallF gas system flanges and the dewar wheels adapter
      • Water pool, polyethylene design, and installation of the copper box: first draft is in place thanks to Cesidio’s work.
      • Next steps: fill the technical report and update the Technical Design Report to be validated.
      • First step: informal meeting with the Environmental Service tomorrow at 10:00.

      Mechanics / Drawings / CAD

      • Copper drawings (source flange): still to be validated by Filippo (still on sick leave).
      • Copper drawings (service flange): still to be understood/clarified.
      • No time this week to discuss with Giulia the next steps on CAD; no availability from technicians as well.

      Detector Hardware / Commissioning

      • Bent cathode frame: investigation at LNF from the company that produced it on Tuesday.
      • GEM installation issue:
      • One oxidized GEM was lost; we do not have a spare.
      • Investigating shipment to CERN to produce a new oxidized GEM and recover the damaged one.
      • Inner Nylon66 frames are bent too, making GEM foil mounting difficult.
      • Workaround solution under test these days.
      • Schedule impact/delay still under evaluation.

      Gas Stock

      • CF₄ stock at LNGS is enough for full commissioning (5 bottles available).
      • Some He bottles still need to be purchased (Stefano).
    • 09:04 → 09:05
      Giorgio report 1m
      Speaker: Giorgio Dho (Istituto Nazionale di Fisica Nucleare)

      No news from analysis as meeting was canceled

      This week the new analysis task management tool to be presented at general meeting

    • 09:05 → 09:06
      Stefano report 1m
      Speaker: Stefano Piacentini (GSSI and INFN LNGS)
      • Nothing to report from the labs
      • Tomorrow first WP5 meeting of 2026
      • I am investigating the possibility of borrowing Rb-83 source belonging to XENON
    • 09:06 → 09:07
      Giulia report 1m
      Speaker: Giulia D'Imperio (Istituto Nazionale di Fisica Nucleare)

      - inconsistency in GEM radioactivity measurements explained (found a typo in HPGe table of the db, fixed)
       - last week sim meeting (02/02): presentation by Emanuele on MC corrections with normalising flow
      - CYGNO-04 simulations in progress
      - Check if the geometry in geant4 is up-to-date with the final CAD

    • 09:07 → 09:08
      Fabrizio report 1m
      Speaker: Fabrizio Petrucci (Istituto Nazionale di Fisica Nucleare)
    • 09:08 → 09:09
      Andrea report 1m
      Speaker: Andrea Messina (Istituto Nazionale di Fisica Nucleare)