The LHC is clear!

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Beams have now circulated in both directions around the LHC (different beam-pipes), so the tubes have been verified to be empty (nothing demonstrates that better than a beam), the magnets are all well aligned and stay cold, and the focusing optics are tuned.  No show-stoppers!

The counter-clockwise direction took a little longer; they had more trouble controlling the beam on the first or second try (it wiggled back and forth around the center of the beamline until they re-tuned the optics), but it has been successfully demonstrated now.  On the whole, it has been a very good day for the storage ring— I don’t think anyone expected it to be so successful so early (6 hours from the first injection to complete success).

If anyone involved is reading this, congratulations!!!

Updates:

  • time estimates for getting one beam to go in one direction had been as much as 12 hours
  • semi-official date for first collisions is Oct 21 (that can be changed, perhaps earlier)
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One Response to “The LHC is clear!”

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