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The LHC has experience more issues, further delaying its restart. This time leaks were found in its insulating layer's vacuum.  (Source: Flickr)

The Large Hadron Collider consists of a 17 mile, electronics-packed tunnel on the Swiss-French border. The collider will accelerate particles to unprecedented speeds and should unlock physics mysteries.  (Source: CERN)
Problems continue at the CERN project

For a project as ambitious and complex as CERN's Large Hadron Collider (LHC), setbacks are likely, in fact almost inevitable.  However, the delay would be worth it according to Bob Cousins, deputy to the scientific leader of one of the sensor experiments as it would allow the sensors to be made "even more perfect than before". 

While the sensor may indeed be nearing perfection, the overall design is still experiencing problems.  Leaks in the insulating layer's vacuum were discovered in
sectors 8-1 and 2-3 that would prevent it from properly operating.  This new problem will delay the restart from October to November.

The leaky sectors will be needed to be warmed from their current temperature of 80K to room temperature in order to plug the leaks.  The near-vacuum of the beam pipe will not be impacted. 

The LHC is cooled with liquid helium injected into an insulating layer which surrounds the beam tube and is kept at near-vacuum.  This allows the LHC beam tube to be cooled to temperatures colder than that of outer space.  Last fall the particle collider was briefly turned on, but a cooling circuit melted leading to the damage to the electrical and cooling systems.  Scientists initially wanted to restart the LHC in April, but the large extent of the damages necessitated more repairs.

The cost of all the repairs thus far, though, have been small compared to the $10B USD estimated cost of building the LHC.  Current repairs have run over $35M USD, according to reports.

The LHC sits on the border between Switzerland and France and consists of a 17 mile long ring.  The ring is capable of imparting energies of
7 TeV onto particles, making for potential collisions at unprecedented energies.  Scientists hope these collisions will help them unlock physics secrets including understanding how dark matter and energy work and the discovery of the law theorized "God Particle" -- the Higgs boson.

The accelerator, when active will continue to close each winter, to avoid the prohibitively high energy costs.  The accelerator requires massive amounts of power to operate.

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RE: So...
By DeepBlue1975 on 7/22/2009 7:40:13 PM , Rating: 4
Japanese is still more practical and logical:


And as for the imperial units... I don't know why the US keeps using it. If you are a physicist or an engineer, most likely you'll end up using metric units when doing serious calculations.

Working on equations with ten-based quantities and units that can not be treated as ten based is really annoying.

RE: So...
By DonkeyRhubarb on 7/23/2009 7:44:50 AM , Rating: 3
Why is the Japanese system more logical?

When I look at my phone to get the date, there's a bloody good chance I know what year it is, I just want the day, thus it should be first!

RE: So...
By JediJeb on 7/23/2009 10:35:06 AM , Rating: 2
In our lab we just changed over to using yyyy/mm/dd because it makes sorting and searching data so much easier when you have data spanning multiple years. If you sort without the year first you usually end up with 12 december 2008 right before 12 december 2009 and if you want files on three consecutive days you have to hunt and search because they are not contiguous.

RE: So...
By Ratinator on 7/23/2009 12:14:44 PM , Rating: 2
So you pick one instance where you actually know the year and consider the other as not being more minded.

RE: So...
By DeepBlue1975 on 8/7/2009 11:04:23 AM , Rating: 2

Wow, that's a lot of time you loose reading at a one tiny simple date! What a waste of time, man! 30 milliseconds to skip the year?

And what's worse, then comes another wasted 30 milliseconds reading the month, which you also already know!!!

60 whole milliseconds trashed once a day!!! What a painful thing!!!


"Nowadays, security guys break the Mac every single day. Every single day, they come out with a total exploit, your machine can be taken over totally. I dare anybody to do that once a month on the Windows machine." -- Bill Gates

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