CERN Magnet Division
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| CERN Magnet Division | |
|---|---|
| Name | CERN Magnet Division |
| Established | 1950s |
| Location | Geneva, Switzerland |
| Parent | CERN |
| Focus | Superconducting magnet design and production |
CERN Magnet Division is the specialized unit within CERN responsible for the design, development, testing, and production of large superconducting and conventional magnets used in particle accelerators and detectors. The Division has supported major installations and experiments, contributing to advances in particle physics, accelerator physics, and applied technologies for institutions and industries worldwide. It operates as an interdisciplinary center linking materials science, cryogenics, mechanical engineering, and instrumentation.
History
The Division traces roots to the magnet workshops that supported the construction of the Proton Synchrotron and Intersecting Storage Rings in the 1950s and 1960s, evolving alongside projects such as the Super Proton Synchrotron and the Large Electron–Positron Collider. Development accelerated with the advent of superconductivity in accelerator magnets during the Tevatron era and the design phase of the Large Hadron Collider, where pioneering work on niobium-titanium magnets influenced global magnet programs. Over decades the Division contributed to milestones at facilities including Fermilab, Brookhaven National Laboratory, DESY, and KEK, while responding to technological challenges exemplified by collaborations on the ITER project and the European Spallation Source.
Organization and Facilities
The Division is organized into teams specializing in magnet design, prototyping, cryogenics, power systems, and quality assurance, integrating expertise from groups linked to ATLAS, CMS, ALICE, and LHCb detector programs. Facilities include state-of-the-art winding bays, cleanrooms, cold-testing cryostats, and mechanical assembly halls colocated with the CERN Meyrin site workshops. Instrumentation laboratories interface with groups from the Engineering Department and the Technology Department, while management coordinates with the Scientific Computing and Project Management offices for procurement, standards, and safety oversight.
Research and Development
R&D spans superconducting conductor development, quench protection, cryogenic systems, and structural mechanics, often in collaboration with materials centers such as CERN Materials Department and national laboratories including CNR institutes and INRIM. Projects address high-field magnet performance with research on niobium–tin conductors, high-temperature superconductors like REBCO tapes, and novel winding techniques inspired by work at University of Oxford, MIT, and École Polytechnique Fédérale de Lausanne. The Division contributes to accelerator upgrade studies such as the High-Luminosity Large Hadron Collider upgrade and conceptual designs for future colliders like the Future Circular Collider and the Compact Linear Collider.
Major Projects and Contributions
The Division led design and delivery efforts for key LHC magnet systems including main dipoles, quadrupoles, corrector magnets, and specialized magnets for Beam Dump systems and insertion regions serving experiments such as ATLAS and CMS. It played critical roles in the construction of superconducting magnet strings for HERA experiments and supported replacement and upgrade campaigns at CERN SPS and injector complexes like the PS Booster. Notable contributions include magnet designs enabling the discovery programs associated with the Higgs boson and precision measurements pursued by collaborations such as LHCb and ALICE.
Technology and Engineering
Engineering advances include precision coil winding, advanced insulation techniques, vacuum impregnation methods, and integrated quench detection systems developed alongside industry partners such as Alstom-era teams and specialist firms in Switzerland, France, and Germany. Cryogenic engineering integrates with suppliers of helium refrigeration systems used in projects at CERN and external facilities including Paul Scherrer Institute and TRIUMF. The Division adopts finite-element modeling tools from suppliers like ANSYS and collaborates with academic groups at Imperial College London and Université de Genève for mechanical and thermal simulations.
Collaborations and Partnerships
The Division maintains extensive partnerships with national laboratories—Fermilab, Brookhaven National Laboratory, Rutherford Appleton Laboratory, CEA Saclay—and universities including University of Cambridge, Karlsruhe Institute of Technology, Tsinghua University, and University of Tokyo. It engages in European framework programs and technology transfer initiatives with companies in the magnet manufacturing and cryogenics sectors, supports international projects such as ITER and the European XFEL, and contributes expertise to consortia for next-generation accelerator proposals like the Linear Collider Collaboration.
Outreach and Education
Technical outreach includes hosting internships, doctoral theses co-supervised with universities such as Universität Zürich and Università di Milano, and participating in public events like Open Days and exhibition programs tied to CERN visitor engagement. Educational activities extend to training courses for engineers from partner laboratories, collaborative summer student projects with institutions such as EPFL and ETH Zurich, and dissemination of technical reports used by the broader accelerator community and industry partners.