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Emergency dump update 2

This emergency protocol update outlines strategies to open the BIS loop, induce faults in the LBDS system, and scrape the beam for imperative actions. Key steps are detailed for LHC Machine Coordinator, OP LHC Section Leader, OP Group Leader, and LHC MPP Chairman. Important pre-requisites for BIS loop, LBDS actions, and beam scraping are specified, emphasizing the need for direct access to FECs. This updated version contains essential information that is crucial during emergency situations.

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Emergency dump update 2

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  1. Emergency dump update 2

  2. Goal • GENERAL STRATEGY • Force open the BIS loop • Generate an internal fault in the LBDS • Scrape the beam away • Information flow • LHC Machine coordinator • OP LHC section leader • OP group leader • LHC MPP chairman • Nota Bene: Details for all SW based actions are not contained in the EDMS procedure, but only in the version stored on TN: • NOT accessible anymorefrom the OP sequence • A paper copy must be available in CCC

  3. Actions PRE REQUISITES BIS LOOP LBDS SCRAPING

  4. Actions on LBDS Before LS1 • VME crate containing: • BLMDD • TSU • RF freq receiver After LS1 • Crate containing: • BLMDD • RF freq receiver TSU-A TSU-B

  5. Comments • Nice pyramidal approach • What is the added values of trying several (equivalent) operations (once one doesn’t work) if the following action is not destructive? • We should remove the complex actions (especially if no real added value) • Before direct action on LBDS, an attempt to trigger the LBDS via the access system should be carried out

  6. Proposal PRE REQUISITES BIS LOOP LBDS The possibility to have a direct access to the FECs should be considered SCRAPING

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