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Is the LHC online?

MattusMaximus

Intellectual Gladiator
MattusMaximus
Joined
Jan 26, 2006
Messages
15,948
Howdy all,

What's the current status of the LHC? Has it been reactivated? I ask because in the last couple of days my LHC@home program has started to chunk data.

Cheers - MM
 
I think I did that the other night after compiling too much Guinness.
 
According to the last article I read, they're going to beef up some of the bits that failed, so as to avoid a repeat. They won't be running it again for several months now.
 
The LHC isn't scheduled to run during winter due to the increased cost of power. Moreover because of the bad quench back in September, they're currently engaged in checking everything very carefully to make sure there are no more faulty parts that might cause a repeat. That process could take well into the spring or even later.

I'm not sure why your LHC@home is active, but I suppose it could be a simulation.
 
sol invictus said:
The LHC isn't scheduled to run during winter due to the increased cost of power. Moreover because of the bad quench back in September, they're currently engaged in checking everything very carefully to make sure there are no more faulty parts that might cause a repeat. That process could take well into the spring or even later.

I'm not sure why your LHC@home is active, but I suppose it could be a simulation.
Click to expand...

I was near a vent once when the Tevatron quenched at Fermilab. It was very much like being near a rocket engine test as the helium blew off. VERY loud.
 
I don't think LHC@Home ever touches real detector data---most of that work involves huge data-transfer challenges in addition to merely needing CPU cycles. LHC@Home is only working on CPU-intensive but data-light problems: the trajectories of protons in the LHC accelerator itself, and the paths of electrons and ions in gas-filled detector structures.
 
ben m said:
I don't think LHC@Home ever touches real detector data---most of that work involves huge data-transfer challenges in addition to merely needing CPU cycles. LHC@Home is only working on CPU-intensive but data-light problems: the trajectories of protons in the LHC accelerator itself, and the paths of electrons and ions in gas-filled detector structures.
Click to expand...

Well, Fermi designed a built a huge multi-processor whose individual machines were about as powerful as a modern PC, and a full detector event from the CDF detector was only about 4 MB in size. HUGE back when I was working there, as a 65 MB disk drive was about $80,000...
 
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