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