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Message 27178 - Posted: 23 Feb 2015, 11:07:59 UTC

From here. One month to go... We LHC@home crunchers have played a small part in this. (Don't really like "crunchers", but "participants" sounds too formal... all those syllables...)

"LHC 2015 - latest news
15th February 2015

Steady progress with powering tests and quench training of main dipoles (see below). Three sectors are now fully trained to 6.5 TeV. One is in progress, the rest will come soon. Updated schedule has first beam on 23rd March 2015."
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Message 27190 - Posted: 28 Feb 2015, 13:12:14 UTC

An update:-

"LHC 2015 - latest news

27th February 2015

5 sectors now at 6.5 TeV. Sector 23 should be finished with one more quench, sector 78 has just started training, and preparatory tests are ongoing in sectors 34 and 45.

On the weekend of 7th/8th March we hope to perform a sector test with low intensity bunches and bring the clockwise beam into sector 23, and the anti-clockwise beam into sectors 78 and 67."
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Message 27193 - Posted: 3 Mar 2015, 11:33:46 UTC

Nice! We are at last approaching restart. It's also nice to see that we are computing FCC WUs now.
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Message 27198 - Posted: 6 Mar 2015, 10:47:06 UTC

One of several articles from the BBC in the UK leading up to the restart. Exciting times ahead. Good eye-catching photographs.
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Eric Mcintosh
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Message 27202 - Posted: 6 Mar 2015, 15:40:19 UTC

The majority of our current studies are actually
aimed at the upgrade to high luminosity LHC.

Incidentally the tracking studies for the current
LHC are in excellent agreement with the measured
numbers. Eric.
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Message 27203 - Posted: 6 Mar 2015, 15:40:19 UTC

The majority of our current studies are actually
aimed at the upgrade to high luminosity LHC.

Incidentally the tracking studies for the current
LHC are in excellent agreement with the measured
numbers. Eric.
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Message 27213 - Posted: 12 Mar 2015, 11:57:08 UTC
Last modified: 12 Mar 2015, 12:11:23 UTC

LHC 2015 - latest news

12th March 2015

Start of beam commissioning now scheduled for Wednesday 25th March.

The majority of our current studies are actually
aimed at the upgrade to high luminosity LHC.

Find out about it here.
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Message 27218 - Posted: 17 Mar 2015, 13:41:38 UTC

LHC 2015 - latest news

17th March 2015

6 sectors fully trained, last 2 (S34, S45) in progress. S45 is putting up a fight.
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Message 27243 - Posted: 30 Mar 2015, 11:47:45 UTC

LHC 2015 - latest news


21st March 2015

Machine checkout of all systems underway (magnet circuits plus collimators, RF, interlock system, controls, instrumentation etc.).

Training still ongoing in sector 34 (very nearly there) and sector 45 (taking longer than expected. We will not put beam in until all sectors are fully trained to 6.5 TeV. This may well push first beam by a couple of days.


24th March 2015

The best-laid schemes o' mice an' men
Gang aft agley...

The machine checkout is progressing well. Sector 45's main dipole circuit is slowly getting there and has been trained to a current of 10,875 A (target 11,080 A).

However, during the ramp-down of sector 34 following a training quench on Saturday morning, an earth fault developed in the main dipole circuit. All protection systems functioned properly and no harm was done. The fault has been localized. Further measurements are ungoing before deciding on the strategy to be adopted but there will be certainly be some delay to programme.


28th March 2015

Sector 45 is finally trained to the required level for 6.5 TeV operation after around 50 training quenches. Machine checkout continues to stress test all systems in preparation for beam.

However, we still have a short to ground in sector 34, almost certainly due to a small piece of metallic debris in what is now a well established location. An attempt will be made early next week to vaporise the offending object by injectly a current pulse locally.
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Message 27583 - Posted: 19 Aug 2015, 1:01:11 UTC

Weirdly, it seems that CERN will destroy the world on September 25.
Oh well, better finish up my current jobs...
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