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    27th WP8 Bi-weekly meeting (2015-17) [services, JTT, Q1-TAXS connection]

    → Europe/Zurich
    530/R-030 - BE-EA Conference Room (CERN)

    530/R-030 - BE-EA Conference Room

    CERN

    35
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    Description
    Proposals about the HL-LHC TAXS vacuum lay-out in ATLAS and CMS. Services routing, alignment & space allocations. Status of the Q1 to TAS connection
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    Attendance (clockwise): I. Efthymiopoulos (EN-MEF), B. Feral (EN-HE), M. Czech (EN-HE), A. Gaddi (PH-CMX), C. Boccard (BE-BI), J. Albertone (BE-BI), D. Brethoux (EN-MEF), A. Tsinganis (EN-STI), L. Krzempek (TE-VSC), J. Perez Espinos (TE-VSC), C. Adorisio (DGS-RP), M. Raymond (PH-ADO), F. Sanchez Galan (EN-MEF)

    • The PDR is finished, everybody should have received it .
    • Jaime pointed out that the current design is based on standard components in order to give a robust solution
    • TAXS alignment should not be limited by bellows capabilities, in the current lay-out the range of movements is in the order of 2-3 mm.
    • Q1-TAS. Dome providing He thighteness and Z-stops should be included in the design
    • A. Gaddi asked if the size of the lines coud be reduced (either injection r pumping down)
    • Ilias pointed that the integration of the services above ATLAS chimney should be looked in detail.
    • Michel Raymond- Vertical movement of the JFS should be checked (could be a cash with the services running at  bottom part of the new support structure).  Radiation data around 18600 (monoblock) and 12880 (JTT) are needed for evaluation of personal doses in case of interventions.
    • The rollers could bring troubles if the bridge is misaligned respect to the JTT during installation, effort should be put on that.

    ACTIONS

    1. ​Send model Q1-ATLAS to M. Raymond (F. Sanchez Galan)
    2. Send model Q1-CMS to J. Perez Espinos, L. Krzempek ( F. Sanchez Galan)
    3. ​Reduce length of vacuum equipment @ IP side (J. Perez Espinos, L. Krzempek)

     

     

    Notes by Francisco Sanchez Galan

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