Chapter 8
Accelerator Engineering and Technology:
Accelerator Technology
F. Bordry, L. Bottura, A. Milanese, D. Tommasini, E. Jensen, Ph. Lebrun,
L. Tavian, J. P. Burnet, M. Cerqueira Bastos, V. Baglin, J. M. Jimenez,
R. Jones, T. Lefevre, H. Schmickler, M. J. Barnes, J. Borburgh, V. Mertens,
R. W. Aβmann, S. Redaelli, and D. Missiaen
8.1 Magnets, Normal and Superconducting
L. Bottura · A. Milanese · D. Tommasini
8.1.1 Introduction
Magnets are at the core of both circular and linear accelerators. The main function
of a magnet is to guide the charged particle beam by virtue of the Lorentz force,
given by the following expression:
F = q v × B,
(8.1)
where q is the electrical charge of the particle, v its velocity, and B the magnetic
field induction. The trajectory of a particle in the field depends hence on the particle
Coordinated by F. Bordry
F. Bordry () · L. Bottura · A. Milanese · D. Tommasini · E. Jensen · P. Lebrun · L. Tavian · J. P.
Burnet · M. C. Bastos · V. Baglin · J. M. Jimenez · R. Jones · T. Lefevre · H. Schmickler · M. J.
Barnes · J. Borburgh · V. Mertens · S. Redaelli · D. Missiaen
CERN (European Organization for Nuclear Research)Meyrin, Genève, Switzerland
e-mail: Frederick.Bordry@cern.ch; Davide.Tommasini@cern.ch; Erk.Jensen@cern.ch;
Laurent.Jean.Tavian@cern.ch; Vincent.Baglin@cern.ch; Rhodri.Jones@cern.ch;
Jan.Borburgh@cern.ch; Dominique.Missiaen@cern.ch
R. W. Aβmann
DESY, Hamburg, Germany
e-mail: ralph.assmann@desy.de
© The Author(s) 2020
S. Myers, H. Schopper (eds.), Particle Physics Reference Library,
https://doi.org/10.1007/978-3-030-34245-6_8
337