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Friday

Friday. 8h20: Beam back. Injection set-up for 4 x 2e10 per beam. Ramp to 3.5 TeV . Squeeze to 2m. 12h58: Stable beams, double intensity, new record luminosity: > 3e28 cm -2 s -1 in all IR’s . Lumi scans. 23h41: Beams dumped. RF cavity tripped due to quench.

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Friday

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  1. Friday • 8h20: Beam back. Injection set-up for 4 x 2e10 per beam. Ramp to 3.5 TeV.Squeeze to 2m. • 12h58: Stable beams, double intensity, new record luminosity: > 3e28 cm-2 s-1 in all IR’s. Lumi scans. • 23h41: Beams dumped. • RF cavity tripped due to quench. • RF piquet called for recovery. Cryo back rapidly, but checking in detail. • 2h20: Fully back, including resynchronization. • 2h20: Recovery and injection setup: 4 x 2e10. • 6h03: Start of ramp for stable beams. • 6h27: Both beams dumped with interlock from BPM at P6. • Orbit excursion happened 10 min earlier and beam was dumped when setup beam flag went false (masks unmasked). LHC planning

  2. Double Intensity and Luminosity LHC planning

  3. Luminosity History LHC planning

  4. RF cavity quench LHC planning

  5. Loss of last ramp Beam Dump(mask removed) Orbit ExcursionInterlock Not caused by orbit feedback. Reason to be analyzed. OK at time of dump. LHC planning

  6. Ahead NOW (advance by 5 hours) LHC planning

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