Conversation

Notices

1. Bernie (codewiz@mstdn.io)'s status on Sunday, 31-Jul-2022 20:31:08 UTC Bernie

   What is CERN's LHC doing right now?
   https://op-webtools.web.cern.ch/vistar/vistars.php?usr=LHC1

   #physics #cern #lhc

   • Bernie (codewiz@mstdn.io)'s status on Sunday, 31-Jul-2022 20:50:59 UTC Bernie

     in reply to

     Earlier today they were going through setup procedures like "CYCLING" and "CIRCULATE AND DUMP".

     #cern #lhc

   • Bernie (codewiz@mstdn.io)'s status on Sunday, 31-Jul-2022 21:01:53 UTC Bernie

     in reply to

     These QFTs are clearly a CIRCULATE AND DUMP scheme 😏

   • Bernie (codewiz@mstdn.io)'s status on Sunday, 31-Jul-2022 21:07:52 UTC Bernie

     in reply to

     Found a better explanation:

     "The extremely high destructive power of such a beam imposes an external dump [...].
     Each beam dump absorber consists of a 7m long segmented carbon cylinder of 700mm diameter, contained in a steel cylinder, comprising the dump core. This is water cooled, and surrounded by about 750 tonnes of concrete and iron shielding. The dump is housed in a dedicated cavern at the end of the transfer tunnels."

     https://lhc-machine-outreach.web.cern.ch/components/beam-dump.htm

   • Bernie (codewiz@mstdn.io)'s status on Monday, 01-Aug-2022 18:00:59 UTC Bernie

     in reply to

     • penguin42

     @penguin42 Booo!

   • penguin42 (penguin42@mastodon.org.uk)'s status on Monday, 01-Aug-2022 18:01:00 UTC penguin42

     in reply to

     @codewiz Not looked at those pages for quite a while; all good fun, but I think they removed a lot of the postmortem/failure/engineering pages which is a shame, since those were fun to read (but they made them private after they got a bit too much press)