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Monday

Monday. 14:00 beam dump End fill 2797 after 7h 2m of stable beams 480 bunches, ATLAS toroid OFF. Access: ATLAS change of the PC of RCVBV24.L4B1, repair of QPS/EE on RCS.A23B1 intervention on the crates of the BPMD in P6 . ATLAS toroid ramped up

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Monday

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  1. Monday • 14:00 beam dump • End fill 2797 after 7h 2m of stable beams 480 bunches, ATLAS toroid OFF. • Access: • ATLAS • change of the PC of RCVBV24.L4B1, • repair of QPS/EE on RCS.A23B1 • intervention on the crates of the BPMD in P6. • ATLAS toroid ramped up • The collimator vistar display was fixed and the DIP processes are being restarted (timestamp problem). • The sequence for setting the XRP thresholds for TOTEM was fixed by Stefano. • The vacuum solenoids around the injection kickers have been switched back ON; they had been left OFF after the technical stop. • unmasked all three masks in RF monitoring in Big Sister. They were all dating back from 2011. LHC status

  2. Monday afternoon • 17:30 Injecting • 19:24 Stable beams • Fill 2798 - 852 bunches • 20:01 Beams dumped – big UFO MKI2 LHC status

  3. Monday evening • Access prepared for LHCb. • 22:00 Access finished ready for injection • Beam quality problems from the SPS. • The vertical emittanceswere measured to be 2 um (instead of 1.5). • 00:53 lose 2799 in the squeeze • trip of RQ7.L7B1 – QPS trigger • 02:00 Back around at injection • 03:38 Fill 2800 - beam dumped by high losses on Q4.L6 on RS 5.2s after 1 minute into the collisions BP. • Tune signal for beam 1 show instabilities in H LHC status

  4. Familiar picutres LHC status

  5. Tuesday morning • 05:30 Access start for Atlas • Compressor – Torroid • 07:10 Atlas finished • 08:10 – lose test ramp to un-masked interlocks • Try test ramp again – chromaticity and then another shot at 854 bunches • SPS working on beam quality in the meantime LHC status

  6. LHC status

  7. LHC status

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