Design of FFAGs based on a FODO lattice

Author

Berg, J. Scott ; Johnstone, Carol

Author_Institution

Brookhaven Nat. Lab., Upton, NY, USA

Volume

4

fYear

2003

fDate

12-16 May 2003

Firstpage

2216

Abstract

An FFAG is a lattice with fixed magnetic fields that has an extremely wide energy acceptance. One particularly simple type of FFAG is based on a FODO lattice, where both quads can be combined-function bending/quadrupole magnets. The spaces between the combined-function magnets are left open for RF cavities and other hardware. This paper describes a general method for creating lattice designs for this type of lattice which gives the lattice optimal properties for an FFAG accelerator. The properties of this lattice as a function of input parameters are explored. The use of sextupoles to improve lattice properties is also explored.

Keywords

accelerator RF systems; accelerator cavities; accelerator magnets; linear accelerators; FFAG accelerator design; FODO lattice; RF cavities; combined-function bending/quadrupole magnets; fixed magnetic fields; fixed-field alternating gradient; lattice optimal properties; linac; quads; sextupoles; Acceleration; Compaction; Frequency synchronization; Lattices; Linear particle accelerator; Magnets; Radio frequency; Resonance; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Particle Accelerator Conference, 2003. PAC 2003. Proceedings of the

ISSN

1063-3928

Print_ISBN

0-7803-7738-9

Type

conf

DOI

10.1109/PAC.2003.1289070

Filename

1289070