LHC milestones

CERN

Published 2008 | Version v1

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LHC milestones

CERN

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vol48-issue8-p019-e.pdf

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vol48-issue8-p019-e.pdf md5:416230e132af88d5ebe7c676c92debf9	1.7 MB	Preview Download
The designers of the LEP electron–positron collider were far-sighted enough to leave enough room for a possible second machine. md5:8f4b119f23c45c2b866787d7339f31c6	121.8 kB	Preview Download
A field map of the superconducting dipole design for the LHC proton collider for CERN’s LEP tunnel, showing the ‘two-in-one’ design with the two beam pipes held in a single cryostat. md5:6f6a1ecf69769ffd1143af5b32354f04	172.8 kB	Preview Download
In April 1994 the fist LHC dipole prototype was successfully powered for the first time. md5:f43b1320eec7a1375cdffa918ff5e7b3	286.0 kB	Preview Download
At the Council meeting on 24 June, 17 of the 19 member states agreed that the LHC proton collider should be CERN’s next major machine. md5:ae4bd7bd2e847967d0d9f7da19208526	267.8 kB	Preview Download
The LHC string test gives encouraging results. md5:3b8268800112dafa6c46db9d99897177	383.6 kB	Preview Download
Civil engineering for LHC goes on above and below ground. New surface buildings for the LHC are here shown shaded, alongside the existing ones. Crosses mark the Franco-Swiss border. md5:bc939c64ea1e58483b932fd4183096ca	170.2 kB	Preview Download
vol48-issue8-p024figb.png md5:52d2de82516f34cd3aa1d88c37811f40	107.7 kB	Preview Download
A protoype cryomodule housing superconducting accelerating cavities for the LHC. md5:ba87c3621af9a80548b6f5d729f83f25	249.7 kB	Preview Download
A short straight section, containing a prototype LHC main quadrupole, on its testbench at CERN. md5:d70d0f75c04868a8b3bfda06170fca1f	239.6 kB	Preview Download
Lyn Evans (left) and Luciano Maiani at the breakthrough of a new transfer tunnel to the LHC on 15 May 2001. md5:70c54e22c86b78ec0adedf7d00db9300	103.3 kB	Preview Download
A complete LHC cell of six dipoles, straight sections, a prototype cryogenic distribution line and an electrical feedbox began tests in the full String 2 June 2002. md5:a1c4269619b92e26cf1a1bd8c3007db9	203.5 kB	Preview Download
The first US-built magnet, came 6000 km by land and sea from the Brookhaven National Laboratory in New York to arrive at CERN in its container on 21 January 2003. md5:424db7c428ebbb987bcdd3436f722e97	214.7 kB	Preview Download
More than 80 dipole cold masses had arrived at CERN by late summer 2003. This one is being installed in the robotic “crab”, designed to carry the magnets around the site. md5:eaeba30628f771df6fdd833c418d2f18	217.6 kB	Preview Download
The cryogenic unit at Point 8 has reached its nominal temperature of 1.8 K. md5:51b727dc1f81f6af63c8276e590ee6e9	326.5 kB	Preview Download
On 7 March the first of the superconducting dipole magnets was lowered into the accelerator tunnel. The dipoles will be lowered 50 m below the surface via a special oval shaft and then taken through a transfer tunnel to their final destination for careful positioning in the LHC tunnel. md5:cbb33267bf8c05b8bec933fe44938228	259.0 kB	Preview Download
The first 800 jacks for one sector of the LHC had arrived at CERN from India in autumn 2003. They are designed to adjust the positions of the 32 tonne magnets to 0.05 mm precision. md5:316efdd8e94315e5ce9d61017525e266	185.8 kB	Preview Download
By December 2003 the industrial production of the superconducting dipoles was in full swing. md5:c68b5340fc66eadcdea8be326c6b1e8f	119.0 kB	Preview Download
Repair of faulty elements in the cryogenic distribution line discovered in June 2004 got under way at CERN in November, allowing installation to proceed with help from other accelerator laboratories. md5:8c05f0a412b2e2bbef567e809d3b1d98	202.7 kB	Preview Download
The first section of the cryogenic distribution line, corresponding to an eighth of the accelerator, has been tested at a temperature of 10 K since the end of November 2005. md5:d138ac2b7206107778b7248d51c0b492	249.8 kB	Preview Download
The magnet temperature profile along sector 7-8 during the final phase of the cool down. md5:5fd2b7d8164591339a124b779337ef94	242.2 kB	Preview Download
Installation of pulse-forming networks for the LHC injection kickers, built and tested at TRIUMF (above) as part of the Canadian contribution to the LHC, began in May 2005. md5:fa360f6e5baada3704105f8a3a28445e	196.8 kB	Preview Download
Industrial production of the superconducting dipoles was set for completion in November 2006. md5:bcd4e2badf284d4ba51f8164c6c1c044	99.9 kB	Preview Download
On 5 September 2006 the 1000th superconducting magnet system was installed in sector 3-4. During the same week, the final system for sector 8-1 was also installed. md5:3a4febd3ee8d43f37630c7d1ddfe212f	218.6 kB	Preview Download
The final superconducting magnet system, 15 m long and weighing 34 tonnes, made its descent into the accelerator tunnel on 26 April 2007. md5:959409b86bf8abef798711fbb03cd5d1	331.7 kB	Preview Download
A screen shot shows the successful passage of beam in the TI 8 transfer line. md5:a1733d9fceb45b1d3f62fd2f918b15a7	162.1 kB	Preview Download
In electrical tests for sector 4-5 in February, 138 superconducting circuits ramped in unison to a current equivalent to a beam energy of 5.3 TeV. md5:fb3669e8e49ec099719c806b16c8095b	69.3 kB	Preview Download
On 13 July 2007, an inner triplet assembly of quadrupole magnets passed its pressure test in the tunnel after strengthening modifications. md5:1735fde21bb0c35c8532509b7867d82c	345.1 kB	Preview Download
Director-general Robert Aymar sealed the last interconnect between the main magnets on 7 November 2007, at the end of two years of work involving 123 000 connections. md5:be0bd7c1c810a7d658cb38b96f8528b4	220.2 kB	Preview Download
The LHC is on course to start up in 2008, with the machine components fully installed and commissioning well underway. md5:c247e25bf1ee75308b7be62b39f80661	96.5 kB	Preview Download
Particles in the LHC! A bunch of protons arrives at point 3 on the very first attempt during synchronization tests on 8 August 2008. md5:7b09e84fd3b81ccb29cacd4673ae62f2	92.5 kB	Preview Download
The new market-launched TURBOVAC SL turbomolecular pumps product line. md5:71ef447b03e99815a2ddc536d76174e2	207.5 kB	Preview Download

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Issued: 2008-10

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vol48-issue8-p019-e.pdf

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