LHC planning

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).

11-05-10

LHC planning

Double Intensity and Luminosity

11-05-10

LHC planning

Luminosity History

11-05-10

LHC planning

RF cavity quench

11-05-10

LHC planning

Loss of last ramp

11-05-10

Orbit ExcursionInterlock

Beam Dump(mask removed)

Not caused by orbit feedback. Reason to be analyzed. OK at time of dump.

LHC planning

Ahead

11-05-10

NOW (advance by 5 hours)