1 / 8

1545

1545. Tune 1545. Tune correction 1545. 1580: QPH correction. 1580: QPV correction. Naked versus correction. 1584 – no tune feedback. Observations. Tunes and chromaticities more-or-less identical for both beams

allie
Download Presentation

1545

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. 1545 LHC startup progress

  2. Tune 1545 LHC startup progress

  3. Tune correction 1545 LHC startup progress

  4. 1580: QPH correction

  5. 1580: QPV correction

  6. Naked versus correction

  7. 1584 – no tune feedback

  8. Observations • Tunes and chromaticities more-or-less identical for both beams • Watch carefully de-convolution of tune correction of tune modulation given by RF frequency modulation • Pseudo spikes at start of ramp; offset in estimate • b3 snapback correction 50% of total swing • Approx total swing: H -34.8 V 25.42 • Snapback time constant looks more or less OK • Most of it’s over after around 21 seconds

More Related