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deanna-levine

Fri day 11.6 - PowerPoint PPT Presentation

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Fri day 11.6
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  1. Friday 11.6 • Initial plan for the Friday: • Morning: Collimator setup at 3.5 TeV. • Afternoon: controlled longitudinal emittance blow-up. • Night: Transverse feedback system commissioning. • 09:00 : Cold compressor failure in Pt2 • Recovery not expected before 15:00. Giving access until noon: QPS boards RCD.A45B2 and RCBXH1.R1. RQS.A12B2 QPS cable repair in IR1. MKI timing in Pt8. Cryo in Pt2 and Pt4. Noisy reading of temperature at current lead of DFBX.R8 – RD1.  BI in Pt4 for installing new photo multiplier for abort gap monitor. RF in Pt4 • Finishing 10 A/s commissioning test in S78. 8:30 meeting

  2. Friday 11.6 • 15:30: Cryo back in Pt2  revised planning: • Transverse damper studies for afternoon. • Ramp and Squeeze with separated beams at night. • Collimator setup at 3.5 TeV Saturday morning • 16:00 : Pre-Cycle: • RCBXH2.R8 trip during recycle. • Access needed in UX45 for a problem on the BQM crates power supply. • Vacuum fault on the dilution kicker, acknowledged by the kicker piquet. • 18:30: Cryoproblems in sectors 78 and 81 (turbine in Pt8)  bothsectors need to be switched off. • 02:45 :Cryo back in S78 and S81: • Starting pre-cycle in both sectors. • 03:13: Lost cryo maintain in arc 81. 8:30 meeting

  3. Transverse damper studies • 02:45 : Cryo maintain back for arc in S81: • Starting pre-cycle of sector 81. • RCS.A45B1 QPS not OK; need to switch to board B. • 05:45 : Ready for injection: • 06:00: Problem with power converter in TI 8 (RBIH.80407). The DCCT returns zero, even though it is on and the correct function is loaded. • Injecting Beam1 only for the time being. • Revised planning after loss of 30 hours (tbc): • Collimator setup at 3.5 TeV Saturday morning • Transverse damper studies for afternoon. • Ramp and Squeeze with separated beams at night. 8:30 meeting

  4. TI8 Transfer Line Fault ✔ LMC report

  5. Program for the next 2 weeks ✔ LMC report