Backgrounds Information: progress

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Backgrounds Informationprogress

• Roger Barlow and Dave Bailey
• (mostly Daves work)

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PVSS

• Set up system at Manchester
• Makes development easier
• Working remotely at CERN is possible but
  painfully slow
• Learning will go on course when available
• Set up duplicates of LHCCOM and LHCBBM

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Just to show
Collimator position with trend lines
Working now on an overview panel using CAD
drawing of the beamline to integrate the expert
panels.
Will add correct position marks when we know
what they are
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And also from PAC09

• SIMULATION OF THE LHC COLLIMATION SYSTEM USING
  MERLIN
• A. Toader , R. Appleby, R. Barlow, H. Owen, S.
  AlShammari University of Manchester The
  Cockcroft Institute, United Kingdom
• Abstract The LHC Collimators are designed to
  remove halo par- ticles such that they do not
  impinge onto either detectors or other vulnerable
  regions of the storage ring. However, the very
  high 7 TeV energy means that their design is
  critical, as is the modelling of the absorption,
  scattering and wake?eld effects upon the passing
  bunches. Existing simulations are performed using
  Sixtrack and K2. We report preliminary results
  using the MERLIN code, which allows a fuller
  description of the scattering and wake?eld
  processes, and in principle other physics
  processes.

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More questions

• Are the vertical collimator positions available?
• Are there other projects we should be running to
  make datapoints available?
• Are there any diagrams of BLS etc? Would be
  useful to know the layout in order to make
  sensible panels.
• Is there documentation on which datapoint to read
  out to get rates etc?

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Future

• DB and RB will be out for the Wed-Fri part of
  this meeting
• Further trips planned (June 15-19 for RB) short
  and longer term