LHC portal

As far as I know, anything accessible via this site has been confirmed as alright for the public to see by CERN by Chris. He has also got a few notes on the site stating that any CERN employee with concerns amount the links/info here can contact him and have it removed - CERN also has the power to r...

Which forum board and thread is the appropriate place to chat about short-term LNC news -- for example, asking if anybody knows more about the current Sector 4 refrigerator shutdown? Each such event doesn't deserve its own thread, but I haven't spotted one yet with a suitable subject. Thanks much f...

Hola wonderful LCH Watchers, apologies for the lack of updates. Monday: -- Comments: Fairly large cryo problem at Point 4/Sector 45 (cryo screen has plenty of red). Page 1 predicts midnight for cryo to be back to normal - so this schedule probably went into the bin a while back. -- - Access till 19:...

Yup, certainly don't want to stand in front of those beams!

100 000 000 TeV is 10e20 eV, so they're just a bit more powerful than the LHC...

Xymox wrote:DANNY I see you online !!!!

Ssh, I'm lurking!

Saturday/Sunday Schedule -- Comments: Who knows what they'll actually do? ;) -- Evening/night: - RF rearrange from 4 cavities to 6 cavities for B1. - Flip polarity of ALICE solenoid to positive with at least one beam circulating to check effect (and correct if needed). - Finish B1/B2 injection/dump ...

CERN's internal certificates are known to cause problems. However, it's perfectly safe to tell your browser to ignore these problems - unless you think CERN are trying to take over your computer!

I thought we had a topic giving info on this, but it seems to have gone for a walk...

Hmm, I'm doubting any collisions have taken place. The LHC OP eLogBook mentions nothing about collisions - and the timetable for today's collisions has been moved back to 2000 (2 hours time). Edit: Well the pictures on CMS's blog seem to be fairly conclusive in saying they did collide... oh CERN, wh...

First 450 GeV collision of the day moved to 20:00 GTM. CERN runs on GMT+1, actually :-) Saturday/Sunday Timetable -- Comments: Multi-bunch beam and collision testing this weekend. Collisions happened 1300-1400, so no idea what's planned this evening. -- Morning: - Finish beta beating and dump tests...

An even bigger thanks to you for the site, Chris :) The amount of work you must've put in to find all those pages that were here when I joined is astounding - and I'm glad I've got involved in the whole thing, too! It's been good to meet all the people here and the members from CERN (as well as seei...

Hmmm....... What you want is someplace in the EDMS server... You will need a Cern External Account. See the link for external accounts and then check the EDMS for what you want.. Also if you use site:cern.ch in google and then your search you can find amazing things. http://www.google.com/#hl=en&so...

Also, of note is that the collisions this weekend will be the first multi-bunch collisions. The Saturday + Midnight ones are planned to be 4x4 - 4 bunches in each beam. The Sunday one will be 2x2, but at higher intensity. A "bunch" is a group of particles orbiting in the LHC - previously, only one b...

Friday Night Schedule: -- Comments: The LHC team have successfully put 2 bunches into one beam for the first time - each bunch is a group of particles orbiting in the LHC. In the end, they intend to use 2800 bunches. Problems with the RF system in the LHC have held up further multi-bunch progress. T...

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