• Report from meetings
  • MEB -> MG
  • Large batch of dipole approved, continuing with SSS and SpSSS.
  • Slots allocated for warm dipole magnets (second batch of MBXWs and MBW) in progress.
  • Still struggling with the MQTL field quality
  • SLM-> MG
    • By 2010 CERN personnel should be reduced to ~ 2000 staff members (without considering ~ 200 local staff).
    • A reduction of 28% is foreseen for AB and of 42% for AT department.
• Impact of experimental solenoids on LHC optics -> AK (pdf file)
  • Small coupling effect for ATLAS and CMS solenoids at injection
  • Solenoid effect can be included in the sequence. MG argues that it is preferable to have a script installing the solenoids without touching the sequence. This point will e discussed with TR.
  • A question was raised about the availability of solenoids in SIXTRACK and the conversion from MADX to SIXTRACK input.
  • The solenoids induce a small beta-beating (0.1%) and small orbit change (100 μm) in the quads
  • Global decoupling works (automatic routine by SF)
  • Analytical quasi-local decoupling approach to be checked
• Status of field quality of LHC corrector magnets -> YP (pdf file)
  • A summary is given for the SSS correctors and the strategy of the error evaluation
  • Apart from the comparison with the scaled multipoles of MQ and MB, it is important to check  the orthogonality of knobs (impact in orbit, tune, coupling and chromaticity) for the low order multi-poles
  • The most important multipoles are
    • the systematic b₃ of MCBH/V
    • the systematic b₁₀/a₁₀ of MQT/MQS
    • the random b₁,a₁ of MS.
  • Especially for the b₁₀/a₁₀ of MQT/MQS error tables are worth to be included in MADX sequence. This will also imply preparing the corresponding error routines (Action: YP, TR).

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