1 / 4

LHC Status

LHC Status. Eric Prebys/LARP. …within the limits of CERN information policy. Official information still very limited Last press release (Sept. 23) refers to “large helium leak” No pictures. Logbook entries noticeably terse. Other sources of information….

damara
Download Presentation

LHC Status

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 Status Eric Prebys/LARP

  2. …within the limits of CERN information policy • Official information still very limited • Last press release (Sept. 23) refers to “large helium leak” • No pictures. • Logbook entries noticeably terse. Eric Prebys - All Experimenters' Meeting

  3. Other sources of information… • Italian newspapers are very poetic (at least as translated by “Babel Fish”): "the black cloud of the bitterness still has not     been dissolved on the small forest in which     they are dipped the candid buildings of the CERN" “Lyn Evans, head of the plan, support that it was better to wait for before igniting the machine and making the verifications of the parts.“* • Or you can Google “What really happened at CERN”: ** * “Big Bang, il test bloccato fino all primavera 2009”, Corriere dela Sera, Sept. 24, 2008 **http://www.rense.com/general83/IncidentatCERN.pdf Eric Prebys - All Experimenters' Meeting

  4. What we (sort of) know • Tunnel secure, and safety systems up and running • Crew went in today for first inspection of interconnect at “ground zero”. • No details yet • Level of visible damage not clear • Still no pictures released, but those that have seen them describe them as “dramatic”. • Estimates are that “on the order of a dozen” magnets will need to be replaced: • Unconfirmed Lyn Evans quote: “8 dipoles and 4 quadrupoles”. • Big questions: • Why didn’t quench protection system work? • What went wrong with the pressure relief system? • Is there a simple fix to make it work in the future? • Assuming the answer to the third question is yes, the current schedule for beam is May 1 or June 1, 2009 • If the answer is no, it’s too early to come up with a schedule. Eric Prebys - All Experimenters' Meeting

More Related