Message boards :
Cafe LHC :
Nearly there
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Send message Joined: 6 Sep 08 Posts: 118 Credit: 12,926,585 RAC: 7,282   
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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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Send message Joined: 6 Sep 08 Posts: 118 Credit: 12,926,585 RAC: 7,282
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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." |
 yo2013 Send message Joined: 16 Oct 13 Posts: 59 Credit: 342,408 RAC: 0 |
Nice! We are at last approaching restart. It's also nice to see that we are computing FCC WUs now. |
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Send message Joined: 6 Sep 08 Posts: 118 Credit: 12,926,585 RAC: 7,282
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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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Send message Joined: 12 Jul 11 Posts: 857 Credit: 1,619,050 RAC: 0 |
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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Send message Joined: 12 Jul 11 Posts: 857 Credit: 1,619,050 RAC: 0 |
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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Send message Joined: 6 Sep 08 Posts: 118 Credit: 12,926,585 RAC: 7,282
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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 Find out about it here. |
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Send message Joined: 6 Sep 08 Posts: 118 Credit: 12,926,585 RAC: 7,282
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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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Send message Joined: 6 Sep 08 Posts: 118 Credit: 12,926,585 RAC: 7,282
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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. |
 Send message Joined: 26 Jul 05 Posts: 63 Credit: 4,083,755 RAC: 0 
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Weirdly, it seems that CERN will destroy the world on September 25. Oh well, better finish up my current jobs... |
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