Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Last LHC Superconducting Main Magnet Completes the Suite at CERN

29.11.2006
CERN took delivery of the last superconducting main magnet for the Large Hadron Collider (LHC) on 27 November. This completes the full set of 1624 main magnets required to build the world’s largest and most powerful particle accelerator.

Constructing this gigantic scientific machine is a technological and logistical challenge for CERN and its industrial partners. The LHC accelerator was initially conceived 22 years ago and approved for build 10 years later. Its realisation involved more than 200 manufacturers around the world, producing vast quantities of complex components to tight precision.

The LHC is located inside a circular underground tunnel of 27km circumference approximately 100 metres beneath Switzerland and France. When fully operational, it will reach seven times more energy than the most powerful particle accelerator currently in use. Scientists will use the LHC to recreate the conditions just after the Big Bang, by colliding two beams of protons travelling in opposite directions at close to the speed of light.

Thousands of magnets of different varieties and sizes will be used to navigate the beams of particles around the accelerator. These include the superconducting main magnets, of which 1232 ‘dipole’ magnets of 15 metre lengths are used to guide the beams, and 392 ‘quadrupole’ magnets of 5 to 7 metre lengths are used to focus the beams.

“The present achievement is an essential milestone. The successful completion of all main magnets for the LHC accelerator results from the dedication and efficient collaboration of teams from CERN, other laboratories and many European industries. This is a promising step towards achieving the three pillars of the LHC – the accelerator, experiments, and computing – and the ultimate goal of scientific discoveries,” summarised CERN’s Director General Robert Aymar.

Turning a scientific plan on paper into reality is an immensely complex task. The design of the magnets presented one of the most important technological challenges for the LHC. A high magnetic field is required to bend the path of the particle beam around the accelerator. To achieve this, the magnets must perform at the most efficient ‘superconducting’ state without loss of energy, which requires chilling to a temperature of -271°C throughout the LHC’s operation – this is even colder than outer space!

CERN led the design and production processes of the dipole magnets, assembled by three European partners: Babcock Noell GmbH (Germany), Alstom MSA-Jeumont (a French consortium), and Ansaldo Superconduttori (Italy). “We introduced new techniques that were not yet standard in industry, including a new welding method for special stainless steel. We worked closely with industrial partners to adapt state of the art technologies for large-scale productions, while maintaining stringent standards and economic efficiency,” said Lucio Rossi, head of the Magnets, Cryostats and Superconductors group at CERN. Lyn Evans, LHC project leader, added, “This is the end of more than six years of industrial production under very tight quality control. It has required a very close collaboration between the magnet manufacturers and CERN.” The quadrupole main magnets were designed by CEA-DAPNIA laboratory (France), within the framework of the French special contribution to the LHC, and assembled by ACCEL Instruments (Germany) with similar challenges.

CERN’s industrial partners have also benefited from the project to build the LHC. The processes of research and development, coupled with the knowledge transfer from expertise only found in a world-class particle physics laboratory, have resulted in innovations they can reapply to other products in industry, from magnetic resonance imaging (MRI) machines to car manufacturing.

Assembly processes to complete the LHC are expected to finish by mid-2007, in preparation for the start-up in November 2007. The LHC will be central to the next generation of experiments at CERN, enabling scientific investigations that have never been possible before. A new frontier of knowledge will shed light on the unresolved questions of science, such as the search for the elusive Higgs boson to explain the origin of particle mass, investigating the make up of dark matter, and the existence of extra dimensions of space.

James Gillies | alfa
Further information:
http://www.cern.ch
http://press.web.cern.ch/press/PressReleases/Releases2006/PR18.06E.html

More articles from Physics and Astronomy:

nachricht Breakthrough with a chain of gold atoms
17.02.2017 | Universität Konstanz

nachricht New functional principle to generate the „third harmonic“
16.02.2017 | Laser Zentrum Hannover e.V.

All articles from Physics and Astronomy >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Breakthrough with a chain of gold atoms

In the field of nanoscience, an international team of physicists with participants from Konstanz has achieved a breakthrough in understanding heat transport

In the field of nanoscience, an international team of physicists with participants from Konstanz has achieved a breakthrough in understanding heat transport

Im Focus: DNA repair: a new letter in the cell alphabet

Results reveal how discoveries may be hidden in scientific “blind spots”

Cells need to repair damaged DNA in our genes to prevent the development of cancer and other diseases. Our cells therefore activate and send “repair-proteins”...

Im Focus: Dresdner scientists print tomorrow’s world

The Fraunhofer IWS Dresden and Technische Universität Dresden inaugurated their jointly operated Center for Additive Manufacturing Dresden (AMCD) with a festive ceremony on February 7, 2017. Scientists from various disciplines perform research on materials, additive manufacturing processes and innovative technologies, which build up components in a layer by layer process. This technology opens up new horizons for component design and combinations of functions. For example during fabrication, electrical conductors and sensors are already able to be additively manufactured into components. They provide information about stress conditions of a product during operation.

The 3D-printing technology, or additive manufacturing as it is often called, has long made the step out of scientific research laboratories into industrial...

Im Focus: Mimicking nature's cellular architectures via 3-D printing

Research offers new level of control over the structure of 3-D printed materials

Nature does amazing things with limited design materials. Grass, for example, can support its own weight, resist strong wind loads, and recover after being...

Im Focus: Three Magnetic States for Each Hole

Nanometer-scale magnetic perforated grids could create new possibilities for computing. Together with international colleagues, scientists from the Helmholtz Zentrum Dresden-Rossendorf (HZDR) have shown how a cobalt grid can be reliably programmed at room temperature. In addition they discovered that for every hole ("antidot") three magnetic states can be configured. The results have been published in the journal "Scientific Reports".

Physicist Dr. Rantej Bali from the HZDR, together with scientists from Singapore and Australia, designed a special grid structure in a thin layer of cobalt in...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Booth and panel discussion – The Lindau Nobel Laureate Meetings at the AAAS 2017 Annual Meeting

13.02.2017 | Event News

Complex Loading versus Hidden Reserves

10.02.2017 | Event News

International Conference on Crystal Growth in Freiburg

09.02.2017 | Event News

 
Latest News

Switched-on DNA

20.02.2017 | Materials Sciences

Second cause of hidden hearing loss identified

20.02.2017 | Health and Medicine

Prospect for more effective treatment of nerve pain

20.02.2017 | Health and Medicine

VideoLinks
B2B-VideoLinks
More VideoLinks >>>