1 / 10

LHC Machine Protection Review Is the LHC ready to Increase Beam power from 3 to 30 MJ

Summary of the LHC Machine Protection Review by Jerry Annala and Dean Still, discussing the readiness of the LHC to increase beam power. Covers operating parameters, protections in place, and areas of improvement.

eisenhower
Download Presentation

LHC Machine Protection Review Is the LHC ready to Increase Beam power from 3 to 30 MJ

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. LHC Machine Protection ReviewIs the LHC ready to Increase Beam power from 3 to 30 MJ Summary of Review Jerry Annala Dean Still

  2. Operating Parameters

  3. Some Protections LHC has the Tevatron does not • Almost everything can abort the beam • Collimators set near the beam at all times • Cannot inject “unsafe beam” into an empty LHC • Orbit feedback at 25 Hz on the ramp and squeeze • Tune feedback

  4. Last two weeks QPS/UPS Cryogenics CC Pt6 Electrical perturbation Bunch trains Access/SPS Bunch trains 25b 48b 50b 4

  5. Ramp - collimators 6.9.2010 LHC operations 5

  6. Sequencer 6.9.2010 LHC operations 6

  7. & 6 pages of procedure 6.9.2010 LHC operations 7

  8. Injection sequencer 6.9.2010 LHC operations 8

  9. Findings • Hardware protection systems are well designed and tested. These are mostly in very good shape. • Biggest weakness is sequencer stability, operating procedures, and switching between HEP operation and commissioning.

  10. Points of Interest • Not much mention of going below 3.5 m b* • Loss events (dust falling through beam?) • Not a single quench with circulating beam. • Sequencing (and other important software) cannot do things in parallel • Many people asking us if we are going to run 3 more years. • United Airlines does not keep spare APUs for the Boeing 757 in Geneva.

More Related