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Proceedings Paper

Arbitrary order maps, remainder terms, and long-term stability in particle accelerators
Author(s): Martin Berz; Kyoko Makino
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Paper Abstract

It is reviewed how transfer maps of arbitrary order can be calculated in a convenient way using differential algebraic (DA) techniques. Such high-order maps are of use for high- precision optical systems, as well as for the case of repetitive particle accelerators, where nonlinear effects often have a tendency to build up over many turns. It is shown how the methods can be extended to also allow a rigorous treatment of the Lagrange remainder term of the Taylor expansion. The methods can be applied for the estimation of the effects going beyond the aberration order; it is also for the study of the repetitive motion where, leaning on ideas of Lyapunov, Nekhoroshev and others, it for the first time allows a rigorous determination of guaranteed particle survival times.

Paper Details

Date Published: 25 September 1997
PDF: 7 pages
Proc. SPIE 3155, Charged Particle Optics III, (25 September 1997);
Show Author Affiliations
Martin Berz, Michigan State Univ. (United States)
Kyoko Makino, Michigan State Univ. (United States)

Published in SPIE Proceedings Vol. 3155:
Charged Particle Optics III
Eric Munro, Editor(s)

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