I used to think that nothing would happen with the Large Hadron Collider. I even made fun of the nutters saying it's going to destroy the world. After reading CERN Director for Accelerators's latest statement, I'm not so sure:
The LHC is a far better understood machine than it was a year ago. We've learned from our experience, and engineered the technology that allows us to move on. That's how progress is made.
Wait wait wait. WAIT, Mr. Director for Accelerators Steve Myers Sir. What do you mean that the machine is "far better understood" now? How could they spend a billion brazillion dollars in this thing and don't understand it in the first place? Do we really know what are we up to here? Should I book a ticket to Costa Rica and go watch the end of the world from the beach?
The LHC is now circulating beams for the first time since September 2008, when it suffered a serious malfunction. It has taken them a year to repair it, which will explain the origin of the Universe or kick all our atomic asses out of it.
The LHC is back
Geneva, 20 November 2009. Particle beams are once again circulating in the world's most powerful particle accelerator, CERN*'s Large Hadron Collider (LHC). This news comes after the machine was handed over for operation on Wednesday morning. A clockwise circulating beam was established at ten o'clock this evening. This is an important milestone on the road towards first physics at the LHC, expected in 2010.
"It's great to see beam circulating in the LHC again," said CERN Director General Rolf Heuer. "We've still got some way to go before physics can begin, but with this milestone we're well on the way."
The LHC circulated its first beams on 10 September 2008, but suffered a serious malfunction nine days later. A failure in an electrical connection led to serious damage, and CERN has spent over a year repairing and consolidating the machine to ensure that such an incident cannot happen again.
"The LHC is a far better understood machine than it was a year ago," said CERN's Director for Accelerators, Steve Myers. "We've learned from our experience, and engineered the technology that allows us to move on. That's how progress is made."
Recommissioning the LHC began in the summer, and successive milestones have regularly been passed since then. The LHC reached its operating temperature of 1.9 Kelvin, or about -271 Celsius, on 8 October. Particles were injected on 23 October, but not circulated. A beam was steered through three octants of the machine on 7 November, and circulating beams have now been re-established. The next important milestone will be low-energy collisions, expected in about a week from now. These will give the experimental collaborations their first collision data, enabling important calibration work to be carried out. This is significant, since up to now, all the data they have recorded comes from cosmic rays. Ramping the beams to high energy will follow in preparation for collisions at 7 TeV (3.5 TeV per beam) next year.
Particle physics is a global endeavour, and CERN has received support from around the world in getting the LHC up and running again.
"It's been a herculean effort to get to where we are today," said Myers. "I'd like to thank all those who have taken part, from CERN and from our partner institutions around the world."