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Neutrino Factory/Muon Collider Document 308-v1

Review of Current FFAG Lattice Studies in North America

Document #:
NFMCC-doc-308-v1
Document type:
MuCool Note
Submitted by:
John Urish
Updated by:
John Urish
Document Created:
24 Feb 2005, 12:00
Contents Revised:
24 Feb 2005, 12:00
Metadata Revised:
24 Feb 2005, 12:00
Actually Revised:
14 Sep 2006, 13:35
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Abstract:
There has been a revival of interest in the use of fixed field
alternating gradient accelerators (FFAGs) for many applications,
including muon accelerators, high-intensity proton sources, and
medical applications. The original FFAGs, and those recently built in
Japan, have been based on a so-called scaling FFAG design, for which
tunes are constant and the behavior in phase space is independent of
energy with the exception of a scaling factor. Activity in the US and
Canada has instead mostly focused on non-scaling designs, which, while
having the large energy acceptance that characterizes an FFAG, do not
obey the scaling relations of the scaling FFAG. Most of these designs
have been based on magnets with a linear midplane field profile. A
great deal of analysis, both theoretically and numerically, has
occurred on these designs, and they are very well understood at this
point. Some more recent work has occurred on designs with a nonlinear
field profile. Since no non-scaling FFAG has ever been built, there is
interest in building a small model which would accelerate electrons
and demonstrate our understanding of non-scaling FFAG design.

This is a PDF document
Posted by J. Scott Berg

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Keywords:
ACCELERATION
Notes and Changes:
J. Scott Berg, Robert Palmer, Dejan Trbojevic, Eberhard Keil, Carol Johnstone, Andrew Sessler, Shane Rupert Koscielniak, Michael Craddock
Publication Information:
To appear in the proceedings of CYCLOTRONS 2004.
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