Monday 14:00 beam dump Access:

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Presentation transcript:

Monday 14:00 beam dump Access: 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. 03-07-12 LHC status

Monday afternoon 17:30 Injecting 19:24 Stable beams Fill 2798 - 852 bunches 20:01 Beams dumped – big UFO MKI2 03-07-12 LHC status

Monday evening Access prepared for LHCb. 22:00 Access finished ready for injection Beam quality problems from the SPS. The vertical emittances were 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 03-07-12 LHC status

Familiar picutres 03-07-12 LHC status

Tuesday morning 05:30 Access start for Atlas 07:10 Atlas finished 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 03-07-12 LHC status

03-07-12 LHC status

03-07-12 LHC status