Day

Summary

Link to report from morning meeting

• Official start of beams.

• RF capture setup.
• Beta-beat measurements, BI setup, BLM system checks.
• Q and Q' decay overnight.

• Access in the morning for QPS and EPC.
• Evening & night:
  • MKI synchronization with beam on TEDs.
  • B2 threading and splashes. Beam circulating at 22:30.
  • B1 threading and splashes. Beam circulating at 01:00.
  • Basic checks at 450 GeV.

• Access in the morning, handshake test.
• BETS tests at 450 GeV completed.
• Evening: move through nominal sequence.
  • Pre-cycle: OK for all circuits except RCD (dI/dt issue).
  • Machine to injection (OK except RCD), arm BIS loop. Dump tests.
  • Ramp to 3.5 TeV with BIS loop armed. Checked PM disable not possible above 450 GeV.
  • Squeeze to 1.5/10/1.5/3 m (sep/Xing to 0) OK. Beta* information correct. Checked MDI flag in beam dump mode. Beam dump at 3.5 TeV.
  • Overall pretty good, lot's of tasks to tune/adapt.
• 01:00 Heat run. Trip of S12.
• Beam to TI2 and TI8, test of trajectory dependence on SPS SC composition.

• 13:00-22:00: ring closed, close BIS loop for MKI/LBDS.
• 16:00: B2 permit loop closed, problems on B1 loop (BIS-LBDS link). Access, repair optical receiver on TSU.
• 20:00 Both BIS loops closed. Problems with link from LBDS to MKI. Ramp to 3.5 TeV (BETS PCs) and programmed dump test.
• 20:00-24:00: TI2 and TI8 transfer lines tests

8:30 meeting HWC, checkout

• 16:00-24:00: ring closed, close BIS loop for MKI/LBDS.
• Transfer line tests:
  • 15:00-02:00: beam to downstream TI8 TED
  • 17:00-02:00: beam to downstream TI2 TED

8:30 meeting HWC checkout

• SPS:
  • Probe bunch ready in the ring.
  • Extraction setting up. Beam to TT40 TED.
• 16:00:2400: Ring closed.
  • Energy tracking test to 3.5 TeV.

8:30 meeting

Monday 14th February

• Morning: handshake test and SMP (with simulated input E + b*)
• Afternoon: SMP connected to real energy inputs.
• 18:00-24:00: ring closed, attempt to close BIS loop for MKI/LBDS.