FFAGS for rapid acceleration

Conference · Mon Sep 30 00:00:00 EDT 2002

OSTI ID:801544

Carol J. Johnstone and Shane Koscielniak

When large transverse and longitudinal emittances are to be transported through a circular machine, extremely rapid acceleration holds the advantage that the beam becomes immune to nonlinear resonances because there is insufficient time for amplitudes to build up. Uncooled muon beams exhibit large emittances and require fast acceleration to avoid decay losses and would benefit from this style of acceleration. The approach here employs a fixed-field alternating gradient or FFAG magnet structure and a fixed frequency acceleration system. Acceptance is enhanced by the use only of linear lattice elements, and fixed-frequency rf enables the use of cavities with large shunt resistance and quality factor.

• Research Organization: Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
• Sponsoring Organization: USDOE Office of Energy Research (ER) (US)
• DOE Contract Number: AC02-76CH03000
• OSTI ID: 801544
• Report Number(s): FERMILAB-Conf-02/223-T; TRN: US0301901
• Resource Relation: Conference: ICFA-HB2002, Workshop on ''High Intensity and High Brightness Hadron Beams'', Batavia, IL (US), 04/08/2002--04/12/2002; Other Information: PBD: 30 Sep 2002
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
ACCELERATION
AMPLITUDES
BRIGHTNESS
BYPASSES
CAVITIES
DECAY
HADRONS
MAGNETS
MUON BEAMS
QUALITY FACTOR