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Large Hadron Collider Halted Until Next Year  
User currently offlineMadameConcorde From San Marino, joined Feb 2007, 10897 posts, RR: 37
Posted (5 years 12 months 1 day 9 hours ago) and read 1492 times:

The Large Hadron Collider near Geneva will be shut off until spring 2009 while engineers probe a magnet failure.

The incident on 19 September caused a tonne of liquid helium to leak out into the experiment's 27km-long tunnel.

Officials said the time required to fully investigate the problem precluded a re-start before the lab's winter maintenance period.

http://news.bbc.co.uk/2/hi/in_depth/7632408.stm

http://public.web.cern.ch/public/en/LHC/WhyLHC-en.html


There was a better way to fly it was called Concorde
6 replies: All unread, jump to last
 
User currently offlineScrubbsYWG From Canada, joined Mar 2007, 1495 posts, RR: 0
Reply 1, posted (5 years 12 months 1 day 9 hours ago) and read 1481 times:

that's too bad. i was waiting for the day to watch all the doomsday people say 'dammit, no black hole, i guess we were wrong'

User currently offlineMD11Engineer From Germany, joined Oct 2003, 14026 posts, RR: 62
Reply 2, posted (5 years 12 months 1 day 9 hours ago) and read 1476 times:

Well, those magnets are not mailorder items. They are unique pieces, made to customer specifications.
With the quench I assume that all coils inside have burnt through.

Jan


User currently offlineMadameConcorde From San Marino, joined Feb 2007, 10897 posts, RR: 37
Reply 3, posted (5 years 12 months 1 day 9 hours ago) and read 1473 times:

I hope they will have no more major breakdowns after the helium leaks and heated up magnets but who knows?

I am surprised that they had not figured all this out before they started up the big machine. The heck only knows what might happen lnext!!

The Higgs Boson will have to wait.  dopey 



There was a better way to fly it was called Concorde
User currently offlineMD11Engineer From Germany, joined Oct 2003, 14026 posts, RR: 62
Reply 4, posted (5 years 12 months 1 day 9 hours ago) and read 1463 times:



Quoting MadameConcorde (Reply 3):
I hope they will have no more major breakdowns after the helium leaks and heated up magnets but who knows?

Don't worry about the helium leaks, this is just a plumbing problem (anyway, ALL helium systems leak, because helium atoms are so small that they can actually like hydrogen, diffund though the empty spaces in the cristalline structure of metals).

Jan


User currently offlineNA From Germany, joined Dec 1999, 10735 posts, RR: 9
Reply 5, posted (5 years 12 months 1 day 9 hours ago) and read 1463 times:

Such an ambitious project, one of the biggest, and next to the Apollo missions the biggest science project ever, surely needs to be done right, so I´m not surprised that repair will take its time. I´m only surprised that the failure happened so early during the testruns.

User currently offlineKlaus From Germany, joined Jul 2001, 21462 posts, RR: 53
Reply 6, posted (5 years 12 months 10 hours ago) and read 1346 times:



Quoting MD11Engineer (Reply 2):
Well, those magnets are not mailorder items. They are unique pieces, made to customer specifications.
With the quench I assume that all coils inside have burnt through.

As far as I've heard it wasn't the actual coil but the connection between two coils which hadn't been soldered/welded well enough so it melted and ultimately arced. The coils themselves might actually have survived, but unless they've warmed the assembly up and looked inside we probably can't know for sure.


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