Electron dynamics and transverse-kick elimination in a high-field short-period helical microwave undulator

Journal Article · Mon Oct 15 00:00:00 EDT 2012 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.4759002· OSTI ID:22080490

Chang, C; Shumail, M; Tantawi, S; Neilson, J; Pellegrini, C ^[1]

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1. SLAC National Accelerator Lab, Stanford University, Palo Alto, California 94309 (United States)

Single electron dynamics for a circular polarized standing wave (CPSW) undulator synthesized from a corrugated cavity operating with a very low-loss HE{sub 11} mode are analyzed. The mechanism of the transverse drift of the CPSW undulator and its elimination are researched, and the tapered-field ends are found effectively to suppress the kick. A prototype of the CPSW undulator with the characters of short undulating-period 1.4 cm, high field K {approx} 1, large aperture {approx} 5 cm, and variable polarization is designed and modeled, whose 3-dimensional electromagnetic fields are used to research the suppression of the transverse kick.

• OSTI ID: 22080490
• Journal Information: Applied Physics Letters, Vol. 101, Issue 16; Other Information: (c) 2012 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
CAVITIES
ELECTROMAGNETIC FIELDS
FREE ELECTRON LASERS
LOSSES
MICROWAVE RADIATION
POLARIZATION
STANDING WAVES
WIGGLER MAGNETS