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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)

      Previous week recap (by person) — week of this meeting

      Davide P.

      • Updated Fantini: they requested news on final designs; a copper machining slot may be available soon after Easter.
      • Informed Bussetti about successful gas-tightness tests.
      • Confirmed 3 Fan-in/Fan-out units at LNF.

      Davide F.

      • Assembled the first GEM stack at LNF and identified an inner/external frame alignment issue.
      • Defined the fix: slot external-frame holes by 2 mm per side on both stacks; Tecnoalarm to machine; Daniele to provide updated drawings by 23/03.
      • Flagged GEM3 critical issue (v-bond shorts protection resistors); CERN to ship new GEMs for the second stack and remake cathodes (team ready to contribute 400 CHF with rounding requirement for 50 kV safety).
      • Confirmed Hall F allows transport of the copper box already assembled; defined plan (remote crane + air cushion) with ~€5k estimate; started approvals/documentation checks with SPP and LNGS Technical Coordination.
      • Unblocked the copper drawing workflow.
      • Progressed field-cage and infrastructure topics: punching-tool option for missing closure holes; pre-commissioning infrastructure moving forward but some 30×30 Bosch profiles still missing.
      • Identified follow-ups: HV cable compatibility, thin PMT window option, and potential use of CERN transport on 01/04 for the second GEM shipment.

      Giorgio

      • Reported progress in digitization optimization (Luan) and ER/NR discrimination variables integration; analysis meeting set for Thursday.
      • Raised open PMT validation strategy; planned to ask Luigi to write on cathode modification.
      • Confirmed invitation to give a directional DM talk to CSN2 in April.

      Giulia

      • Made available cloud samples for dedicated 8 keV X-ray simulations from GEM copper; assigned digi-reco/analysis to Emanuele and Davide P.
      • Reported CNAF workflow exploration via dedicated account to replace notebook-based running.
    • 09:01 → 09:02
      DavideP report 1m
      Speaker: Davide Pinci (Istituto Nazionale di Fisica Nucleare)

      PMTs and sockets at LNF, ready to test

      Referees asked to organise a meeting to update about time schedule. We can do late April

    • 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)

      • NIER / PRA update: still awaiting feedback from NIER.

      • O₂ sensor procurement: still awaiting feedback from the vendor.

      • Pre-commissioning setup: cameras and PMTs are being transferred from LNGS to LNF.

      • First GEM stack: the required modifications for completing the assembly have been carried out; cleaning and installation are planned for this week.

      • Second GEM stack: ready for installation, with the aim of completing it this week.

      • V-bonded GEMs: out of the three available GEMs, one is suitable and will be used for the second GEM stack; the other two are ready to be sent back to CERN.

      • Field cage: a new test to mount the field cage onto the structure is planned for this week.

      • Copper drawings: Cesidio is accelerating the completion of the drawings. The most recent completed item is the PMT–copper interface. At present, both 3 mm PMMA and a thin window remain viable options.

      • Copper box movement quote: no update yet from Franco Tacca.

      • Fascicolo Tecnico: the first draft has been written and is now to be reviewed by Cesidio and DavideP.

      • Hall F logistics: measure the size and width of the copper pallet in Hall F and send the information to Elisabetta.

    • 09:04 → 09:05
      Giorgio report 1m
      Speaker: Giorgio Dho (Istituto Nazionale di Fisica Nucleare)

      Analysis

      • Meeting showed strong improvement for the fast CAM to PMT association
      • Implementation of Atul's variable by Luan is now complete
      • Luan has provided and shared a notebook with OPTUNA to automize the digitisation optimisation
      • Rob stated he will start working on Rn and Ali also will work one day per week

      Digitization

      • Tough bug found and corrected

      LNF

      • Black box and LED setup ready for PMT tests, to be done this week
    • 09:05 → 09:06
      Stefano report 1m
      Speaker: Stefano Piacentini (GSSI and INFN LNGS)
      • PMT calibration: test setup preparation in LNF
      • Trigger module: Hermann is working on that
      • Rb-83 source: no direct answer from supplier, Italian broken cannot provide it, but they are open to discuss other solution
    • 09:06 → 09:07
      Giulia report 1m
      Speaker: Giulia D'Imperio (Istituto Nazionale di Fisica Nucleare)
      • simulation meeting today 30/3 at 2 pm
        • recap of the PhD thesis work from Pietro and database of position of simulation files
        • simulations corrections developed by Emanuele
    • 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)