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Surface Racks and BLM Planning Update for Installation Progress at LHC (January 2014)

This report outlines the latest progress regarding surface racks and BLM (Beam Loss Monitor) installation across various points at LHC. While some portions, including P1, P2, P5, P6, and P7, have been completed, others are in progress or pending. Key highlights include the installation of HV dividers, exchange of all backplanes, and the re-installation of CFC cards. The rollout of new cables and support systems for dipole-dipole BLM installation also stands out, alongside preparations for additional components like connectors and racks aimed at improving system performance.

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Surface Racks and BLM Planning Update for Installation Progress at LHC (January 2014)

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  1. LS1@LHC BLM planning 28/01/2014

  2. Surface racks P2 • P1, P2, P5, P6, P7, P8 (1/2): done (not complete…) • Pt3: February • Pt4: February, March (Bernd’s request) P6 • 6 Bars ( 2 for Pt8) - + • Cards

  3. Tunnel racks and HV divider • Arc: All backplanes was exchange • Arc: all CFC cards removed • LSS: CFC cards removed • LSS: HV divider installation: ~60% HV dividers was installed in 6 LSS, but rest of cases are special ( as example R5 - presentation) Pt6, where 3 HV dividers was installed

  4. BLM re-installation • New cables for dipole-dipole (DD) BLM installation was done in All Arc with the connectors, except sector 6-7 and L6 (no HV connectors) • L6 – BLMs re-installed in cells 7-21 with new DD support (except cell 8) • R6 – done from Q8-Q11 with connectors, except QBBI.8R6 • R5 – done from Q7 to Q7 with connectors, except for 3 open ICs • LSS: Pt3 re-installed • LSS: R5 - prepared but not installed 4 and 5 cells • DD supports: Germany: received 400long supports ( for 400 DD) CERN: received brides and int supports – 400 pcs (for 200DD), next delivery – middle of February • Connectors : 24.01 arrival 1300 HV connectors 400 signal connectors • New installations (collimators, AFP, TOTEM, Alice – 2 old + new) • Put (overhead) the empty labels on old slot label for displacement to DD BLM • Scotch for new DD supports: 8 (10) rouleaus, 528 euro/rouleau

  5. Divers • Slot Labels • Databases ( ~840 new expert names) • Test (electrical, battery) • Rad Source test ( 2 sources) • Label for new “short” cable (BJBDV - BJBAP) • ECR LHC-BLM-EC-0003 (BJBDV): Samy “Is it possible to change the name form BJBCT (IC High Voltage Box with Capacitor) to BJBCP) and BJSCT (for SEM) to BJSCP? • LIC’s (list and GIF results) for installation • William’s request: Booster IC Supports -> about 5 days Booster Rack -> about 1 day Linac4 Rack -> about 2 Days

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