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Archive for the ‘Rube Goldberg’ Category

LHC IS FAULTY

Posted by feww on March 10, 2010

Large Hadron Collider (LHC) Construction Flawed: Director

Dr Steve Myers LHC cannot be operated at full  potential for [at least] two years.

In September 2008 after about 100 of the LHC’s super-cooled magnets heated up to more than 100°C, the system was shut down. It took 14 months to repair.

Soon the machine must close down again for about a year to make the tunnel safe for high energy proton collisions.

“It’s something that, with a lot more resources and with a lot more manpower and quality control, possibly could have been avoided but I have difficulty in thinking that this is something that was a design error.” Myers said, BBC reported.

“The standard phrase is that the LHC is its own prototype. We are pushing technologies towards their limits.” He added.

“You don’t hear about the thousands or hundreds of thousands of other areas that have gone incredibly well. [REALLY?]

“With a machine like the LHC, you only build one and you only build it once.”

The $10 to $14 billion “White Elephant” is buried up to 100m below the French-Swiss border region.

Must Read Background:

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Large Hadron Collider Crashes

Posted by feww on September 20, 2008

LHC Crashes, Fire Engines Called

Engineers hoping to smash particles at the Large Hadron Collider (LHC) were forced to stop work, after about 100 of the LHC’s super-cooled magnets heated up to more than 100°C.

The failure, called a quench, in this case a “massive” quench, occurred  in sector 3-4 of the accelerator, at a point between Alice and CMS detectors, at about 09:30UTC/GMT on September 19, 2008.


The CMS “superconducting” magnet is meant to create a powerful magnetic field [when it works!] Source: CMS magnet, CERN. Image may be subject to copyright.

Tons of liquid helium leaked into the Collider’s 27-km tutunnel at Cern, near Geneva, Switzerland. Some 20 years after the construction began, and about $10 billion later, this was the second reported incident since last week which stopped work on the giant white elephant.


Photo of the Alice Detector in early 2008. Source: Alice website. Imaga may be subject to copyright.

The quench occurred when liquid helium leaked out of the LHC’s cooling system which keeps the super-cooled magnets at 1.9ºK above absolute zero ( 0ºK is -273.15ºC). LHC engineers also reported a loss of vacuum condition in the cooling system.

A faulty transformer delayed work at LHC throughout last week, and was replaced only a day before the quench occurred.

Will Be Back in November, Possibly December!

CERN spokesperson,  James Gillies said the repairs would be expensive.

“A full investigation is still under way but the most likely cause seems to be a faulty electrical connection between two of the magnets which probably melted, leading to a mechanical failure.

“We’re investigating and we can’t really say more than that now.

“But we do know that we will have to warm the machine up, make the repair, cool it down, and that’s what brings you to two months of downtime for the LHC.”

Related Links:

[Note: No photos of the fire engines called to LHC were available at the time of publishing!]

FEWW

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