LHC 2010 - latest news

Week 28: Machine coordinators: Mike Lamont and Joerg Wenninger

Main aims of the week:

Leading into a technical stop - aim to dump beams at 06:00 Monday 19th.

Day Summary Link to report from morning meeting
Monday 19th Technical stop Report from 8:30 meeting
Sunday 18th
  • 01:00 Beam dumped - Q6.L5 trip (PC).
  • 03:00 Control problems - server had to be replaced.
  • 07:00 Filling for physics 13_8_8_8.
  • 10:50 : Stable beams. Fill satyed in 19 h until the start of the technical stop.
Report from 8:30 meeting
Saturday 17th
  • 04:40 Beam dumped - LBDS B2 internal trigger (vacuum MKB - false interlock).
  • 08:00 Access S56 for QHPS.
  • 11:00 Filling for physics 13_8_8_8.
  • 12::20 Beam lost in ramp - FMCM trigger on network glitch.
  • 15:00 Filling for physics 13_8_8_8.
  • 19:00 Stable beams.
Report from 8:30 meeting
Friday 16th
  • 10:00 Access for QPS S45.
  • 15:30 Trip of S81.
  • 19:00 Filling for physics 13_8_8_8.
  • 00:40 Stable beams.
Report from 8:30 meeting
Thursday 15th July
  • Stable beam established around 04:00.
  • Beam dumped at 13:00.
  • 15:30 Hump studies (GSM network in tunnel).
  • 18:00 Setup for 13 1/2 bunches.
  • 23:00 Access CMS (cavern pressure).
  • 00:30 Injection - problems..

Report

Ghost bunches (Philippe Baudrenghien)

Wednesday 14th July
  • Physics all morning, beams lost around 17:00 to electrical glitch
  • Access
  • Delay refilling due to booster power supply problem
Report
Tuesday 13th July
  • 02:00 : Refill for physics 12_8_8_8
  • 05:20 : Stable beams
  • 14:00 : Beam dump
  • 15:30 : Access
  • 18:00 : Refill for physics
Report from 8:30 meeting
Monday July 12th
  • Until 12:00 : Physics
  • 12:00 - 13:30 : Ramp down
  • 14:00 - 16:00 : Access
  • 16:00 - 17:30 : Pre-cycle
  • 18:00 : Refill for physics
  • 21:30 : Beam lost on Flat Top. OFB problem in V plane.

Report from 8:30 meeting

Report from Serge Claudet