Aperture in the LHC On-Line Model

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Aperture in the LHC On-Line Model

• What the hell is the LHC On-Line model?
• What is the complete LHC model?
• Example for the SPS

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What the hell is the LHC On-Line model?

• Exploiting all MAD-X features to simulate the LHC
  commissioning tasks
• Collect all available magnet measurements and
  construct a complete model
• Complement model with beam-based measurements and
  statistical analysis
• Supply applications for the LHC commissioning
• ? Clear interfaces to the control system to
  exchange strength and knobs settings

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What is the complete LHC model?

• Proper Optics taken from the CAMIF CVS
  repository of Cerns accelerators
• Field errors from Fidel/Wise
• Misalignments
• Aperture (taken from CAMIF)
• Refined Model using PTC

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Summary about Aperture in the LHC On-Line Model

• The complete model of LHC includes a model of the
  aperture
• The aperture model is an integral part of the
  On-line applications
• In Commissioning this will allow to compare the
  aperture with beam size, bumps, trajectories