Date

Summary

Link to report from morning meeting

Monday 11 June

• 01:50 Stable beams Fill 2719, 6.3E33 cm-2s-1. Beam dumped after 3 minutes by a vacuum spike in Pt3.
• Vac. expert increases thresholds in Pt3 from 1E-6 to 4E-6.
• 04:07 Stable beams Fill 2720, 6.3E33 cm-2s-1.
• 04:40 Beam dumped, RF B1 - circulator arc.  Integrated L 11 pb-1.
• Waiting for MKI8 to cool down.
• Refill.
• 08:10 Beam dumped in the ramp by OP. OFB did not start its function and kept the injection orbit.

08:30 meeting

Sunday 10 June

• 04:45 Beam dump, circuit breaker fault on RF klystron B2. Integrated L 199 pb-1.
• Short access for El and RF on Pt4.
• 07:30 Injecting again.
• 08:50 Stable beams Fill 2718, 6.3E33 cm-2s-1.
• 23:50 Dump fill 2718, Integrated L 199 pb-1.

08:30 meeting

Saturday 9 June

• 02:21 Test ramp with probes to check new electronics
• 08:45 Injection for physics
• 09:40 Beam dumped by BLMs while going into collisions, heavy losses in IR7.
• 11:0 Injecting physics beam.
• 13:00 Stable beams Fill 2717, 6.2E33 cm-2s-1.

08:30 meeting

LBDS

Friday 8 June

• 09:30 Adjust, Integrated L 160 pb-1.
• RF cavity tuner fine tuning, ADT gain.
• 10:01 Beam dump, FMCM RD1.LR5, electrical perturbation.
• Access for cryo, heater on lead of RQ7/.R1.
• 13:30 Injecting.
• 15:40 Stable beams Fill 2713, 6.4E33 cm-2s-1.
• 15:47 Beam dump, SIS interlock on CODs due to missing data (timeout). Integrated L 2 pb-1.
• 16:40 Injection
• 18:24 Stable beams Fill 2714, 6.5E33 cm-2s-1.
• 20:36 OP dump due to safety problem (LBDS).Integrated L 37 pb-1.
• preparing and testing mitigation electronics

08:30 meeting

Thursday 7 June

• 09:30 CMS VdM scan (+- 6 sigma total separation). ADT gain test.
• 10:30 Beam dump: access system in Pt5 (patrol lost). Integrated L 200 pb-1.
• Patrol in PM56, access to ALICE etc.
• 15:00 Injection.
• 17:04 Stable beams Fill 2711, 6.4E33 cm-2s-1.
• 19:40 Beam dumped, FMCM and circuit trip, electrical perturbations. Integrated L 51 pb-1.
• PS off...
•  21:15 Filling again.
• 22:50 Stable beams Fill 2712, 6.6E33 cm-2s-1.

08:30 meeting

Wednesday 6 June

• 03:20 UFO dump at 450 GeV with 12+144 bunches in the machine, B1.
• 05:00 Ramp, beam dumped due to water fault on RQ10.R1.
• Access for EPC, increased water pressure.
• Precycle. Trip of RB12.
• CMS and ATLAS will change their online luminosity calibration for the next fill: CMS -2.2%, ATLAS +0.25%. This will bring the luminosities closer together.
• Morning, afternoon: problems with beam from injectors, PSB RF problems.
• 17:00 Filling. RCBV18.L4B1 faulty - removed from operational set.
• 20:04 Stable beams Fill 2710, 6.6E33 cm-2s-1.

08:30 meeting

Tuesday 5 June

• 00:25 dump due to (false) vacuum alarm (short circuit in vac crate). Integrated L 89 pb-1.
• 03:55 new injection for physics
• 06:30 Stable beams Fill 2700, 6.3E33 cm-2s-1.
• 08:25 beam dump: trip of rcbxh2.L1. Probably SUE. Integrated L 33 pb-1.
• 11:30 Stable beams Fill 2701, 6.2E33 cm-2s-1.
• 23:20 End of fill, OP dump. Integrated L 160 pb-1.
• Access for CMS, ATLAS, ALICE.

08:30 meeting

Monday 4 June

• 02:18 TCTs in point 2 not executing the functions
• 02:25: Loss of communication with BLM in point 3 Beam dump
• Investigations for collimator problem
• 05:27 Trip of sector 12. RQ6.R1 (QPS)
• LBDS.B2 problem during pre-cycle. Access required for replacing a power supply and for the QPS
• 14:30 injection probe beam, check collimator alignment for TCSG (IR6)
• 16:40 injection for physics ... delayed due to SPS kicker problem
• 19:26 Stable beams Fill 2698.

08:30 meeting