High-order dispersion suppression for FFAG-based optics

Fenning, R, Machida, S, Kelliher, D, Khan, A and Edgecock, R. (2012) High-order dispersion suppression for FFAG-based optics. Journal of Instrumentation, 7 (05). P05011-P05011. ISSN 1748-0221

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Abstract

The resurgence of interest in FFAG type magnets has motivated the desire for high-order dispersion suppression to aid the development of dispersion-free straight sections to currently circular designs. In scaling FFAGs, dispersion suppression can only be achieved over a limited momentum range and breaks down as high-order chromatic aberration terms become significant. However by breaking the scaling law and varying the individual multipole components, these can be compensated for and a design for high-order dispersion suppression achieved. This paper presents a process for doing so and discusses the impact on beta functions, as well as the effect of magnet positioning errors.

Item Type:	Article
Subjects:	Q Science > Q Science (General) Q Science > QC Physics
Schools:	School of Applied Sciences
Depositing User:	Sharon Beastall
Date Deposited:	02 Oct 2012 12:49
Last Modified:	02 Oct 2012 12:49
URI:	http://eprints.hud.ac.uk/id/eprint/15257

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