Chapter 4

Superconducting Magnets

John R. Hull

John R. Hull

Boeing, Advanced Physics Applications, P.O. Box 3707, MC 2T-50, Seattle, WA 98124-2207, USA

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Martin N. Wilson

Martin N. Wilson

33 Lower Radley, OX14 3AY, Abingdon, United Kingdom

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Luca Bottura

Luca Bottura

CERN, TE-MSC, M24500, CH-1211 Geneva, 23, Switzerland

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Lucio Rossi

Lucio Rossi

CERN—European Organization for Nuclear Research, Technology Department, 385 Route de Meyrin, 1217, Meyrin, Switzerland

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Michael A. Green

Michael A. Green

Lawrence Berkeley National Laboratory, Engineering Division, M/S 46-0161, 1 Cyclotron Road, Berkeley, CA 94720, USA

FRIB Michigan State University, 640 South Shaw, East Lansing, MI 48824, USA

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Yukikazu Iwasa

Yukikazu Iwasa

Massachusetts Institute of Technology, Francis Bitter Magnet Laboratory, Plasma Science and Fusion and Center, 170 Albany Street, Cambridge, MA 02139, USA

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Seungyong Hahn

Seungyong Hahn

Massachusetts Institute of Technology, Francis Bitter Magnet Laboratory, Plasma Science and Fusion and Center, 170 Albany Street, Cambridge, MA 02139, USA

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Jean-Luc Duchateau

Jean-Luc Duchateau

CEA/IRFM, Institute for Magnetic Fusion Research, 13108 St Paul lez Durance Cedex, France

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Swarn Singh Kalsi

Swarn Singh Kalsi

Consulting Engineer, Kalsi Green Power Systems, LLC, 46 Renfield Drive, Princeton, NJ 08540, USA

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First published: 07 January 2015
Citations: 5

Summary

This chapter discusses several general comments on superconducting magnets and presents the details of how levitation is implemented in a superconducting bearing. It reviews the main features of superconducting magnets used for particle accelerators and colliders. Magnet design, mechanical structure, training behavior, stability and protection of the magnets used for present and past accelerators are also discussed. The chapter contains superconducting detector magnets for particle physics. It outlines general remarks on magnetic resonance (NMR) and magnetic resonance imaging (MRI), their unique field requirements, both spatial and temporal, and types of superconducting coils that constitute NMR and medical diagnostic MRI magnets. The chapter describes high-temperature superconductor (HTS) applications. The need for superconducting magnets in large fusion devices was already recognized in the middle of the 1970s, associated with several development programs for the conductor and the coils. The most emblematic project is now International Thermonuclear Experimental Reactor (ITER).

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