• 00h50: Start ramp, 1b per beam, 9e10 per bunch. Heavy losses. B1 lost in ramp.
• 01h38: Beam 2 at 3.5 TeV: loss map tests.
• 02h08: Requested beam dump.
• 03h00: Injection.
• 04h36: Start ramp, 1b per beam, 9e10 per bunch. Heavy losses. B1 lost in ramp.
• 05h19: RCS.A45B1 tripped again twice (second time at 06h07). Need access for repair.
• 08h00: Access for RCS.A45B1 repair and repair of temperature sensor on RQD.A23.

• 00h34: Beam dump test at 3.5 TeV with pilot bunch.
• 02h15: Injection studies, interupted by various HW problems. Beta beat measurement after new 10 A/s cycling.
• 07h00: Reset of P2 compensator (problem during night) and pre-cycle.
• 09h30: Prepare for test ramp with pilot bunch (fix chromaticity and orbit problems).
• 10h26: Start of ramp.
• 11h23: Requested beam dump at 3.5 TeV. Rampdown and precycle. CMS cosmic run. Ramp up of ALICE solenoid. Work on BLM crate in IR7.
• 13h00: Injection. Orbit feedback problem (uncontrolled trims).
• 15h12: Start ramp, 1b per beam, 9e10 per bunch. Heavy losses.
• 16h12: SMP tests completed, including 3.5 TeV check. Requested dump.
• 17h38: Work on BLM crate in IR7: temporary measures (autmoatic reboot) implemented.
• 17h39: Trip RCS.A45B1. Access for repair. Temperature sensor on RQTL9.R7B2. Pre-cycle.
• 23h15: Injection setup.

• 04h00: SPS magnet intervention completed. CMS access.
• 08h00: PS RF problem.
• 12h30: Beam back at LHC. Injection setup for pilot bunch.
• 14h23: Beam dump check - IR6 BPM interlock
• 17h05: Injection check for nominal bunch.
• 18h20: Repair attempt for BLM crate "cfv-sr7-blmr".
• 23h12: Prepare ramp.
• 23h41: Test ramp for beam dump (pilot bunch).

• 06h30: Start of LHC dry runs with 10 A/s.
• 08h00: End of SPS MD's.
• 11h00: Short in SPS main dipole diagnosed. Need to replace main dipole in SPS. NO BEAM for LHC. Continuing LHC dry runs.

• 18h00: LHC machine closed. End of technical stop for LHC.
• LHC recovery. Requalification of various magnet circuits (following interventions during technical stop).
• No beam from SPS: MD's until 08h00 Friday morning.

Technical stop

No slides during technical stop
Slides from LMC report

Technical stop (news Katy Foraz):

• Activities are progressing according to schedule, and even ahead of schedule: Non conformities on cryo valves are fixed, the "electrical un-lock-out phase 2" is done at points 1, 3 and 5
• Problems which occured
  • Leaks in UA63 - inside a power converter - normal situation will be back on wednesday morning
  • PM45 lift unavailable during morning,
  • Patrols lost !!

Technical stop (news Katy Foraz):

• The RP surveys are completed. The LHC machine tunnel is classified as Supervised Radiation Area. Exceptions are LSS3, LSS7 and the UD caverns at Point 6 which are classified as Simple Controlled Area with local postings at the most radioactive elements. No surveys have been performed in TI2/8.
• Electrical lock-out are done
• All the activities are progressing according to schedule
• Problems:
  • Unforeseen lost of patrols: arc 45, arc 34, RUX45, UX45, arc 78 due to a fault of the access system !!!
  • Problem with server – unavailability of access system