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October schedule update

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cleta
7 diapositives · 216 Views · Sep 13, 2014

This update outlines essential considerations for the October schedule regarding scrubbing and technical stops, focusing on radiation protection and operational efficiency. Key points include the potential activation impacts during scrubbing, the gap between operational phases, and the importance of expert availability. It highlights the priority of 25ns operations, the integration of multi-bunch tests, and specific tasks for LHC experiments like LHCb and TOTEM. Attention is directed towards minimizing operational disruptions and ensuring effective resource management during the schedule adjustments.

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October schedule update
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  1. October schedule update Mike Lamont GianluigiArduini

  2. Requirements October schedule update

  3. Consideration • Radiation protection (Stefan Roseler) • Scrubbing typically means losses and additional activation which is inconvenient prior to a Technical Stop- consider the impact on activation and the Technical Stop • Note: losses will be mainly at 450 GeV • Gap between MD4 and scrubbing (Giulia Papotti) • Some time in between the two blocks would allow proper result analysis and re-prioritization if required • Recovery after MD3 was almost transparent (had only 1 problem possibly related to the MD block), so impact on physics operation is minimal. • The same machine experts would be working for the 4-day MD block, the scrubbing run, the 25ns MDs... This does not go in the direction of having efficient nor alert experts. • Contingency • 25 ns regarded as high priority (see last week’s LMC), some breathing space required in case of poor availability… October schedule update

  4. Proposed timetable October schedule update

  5. On the schedule October schedule update

  6. October schedule update

  7. Also on the list • Proton-lead: • multi-bunch ramp test • squeeze commissioning • LHCb: aperture at 450 GeV • TOTEM: in physics with TCLAs out • EOF: transverse profile – scraping with collimators • EOF: bunch flattening • Shorter bunches at injection with adiabatic voltage increase after filling (to LMC) • Fill(s) with shorter bunch length (impedance, heating…). Strategy to be defined. Ideally down to 1 ns. (to LMC) October schedule update