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Title: X-Band Microwave Undulators for Short Wavelength Free-Electron Lasers

Abstract

Microwave undulators have two features that make them attractive to use in free-electron lasers, when compared with conventional static magnetic undulators. One is that the beam aperture is larger than the period, and thus the undulator period is smaller than that achievable with static systems. The second is the possibility of easily producing both circular and planar polarization and dynamically controlling the polarization characteristic and the undulator field intensity. The recent development of high power klystrons and pulse compression techniques at X-band frequency, near 12 GHz, is making this type of undulators very attractive for use in short wavelength free-electron lasers operating in the few nanometers to the Angstrom spectral region. In this paper we discuss the choice of parameters for X-band microwave undulators, the effect of microwave energy losses in the waveguide walls and its possible compensation by tapering the waveguide geometry, and the characteristics of free-electron lasers based on these systems.

Authors:
 [1]
  1. University of California at Los Angeles, Department of Physics and Astronomy, 405 (United States)
Publication Date:
OSTI Identifier:
20787674
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 807; Journal Issue: 1; Conference: 7. workshop on high energy density and high power RF, Kalamata (Greece), 13-17 Jun 2005; Other Information: DOI: 10.1063/1.2158757; (c) 2005 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; APERTURES; ENERGY LOSSES; FREE ELECTRON LASERS; GEOMETRY; GHZ RANGE; KLYSTRONS; MICROWAVE RADIATION; POLARIZATION; WAVEGUIDES; WAVELENGTHS; WIGGLER MAGNETS

Citation Formats

Pellegrini, C. X-Band Microwave Undulators for Short Wavelength Free-Electron Lasers. United States: N. p., 2006. Web. doi:10.1063/1.2158757.
Pellegrini, C. X-Band Microwave Undulators for Short Wavelength Free-Electron Lasers. United States. doi:10.1063/1.2158757.
Pellegrini, C. Tue . "X-Band Microwave Undulators for Short Wavelength Free-Electron Lasers". United States. doi:10.1063/1.2158757.
@article{osti_20787674,
title = {X-Band Microwave Undulators for Short Wavelength Free-Electron Lasers},
author = {Pellegrini, C.},
abstractNote = {Microwave undulators have two features that make them attractive to use in free-electron lasers, when compared with conventional static magnetic undulators. One is that the beam aperture is larger than the period, and thus the undulator period is smaller than that achievable with static systems. The second is the possibility of easily producing both circular and planar polarization and dynamically controlling the polarization characteristic and the undulator field intensity. The recent development of high power klystrons and pulse compression techniques at X-band frequency, near 12 GHz, is making this type of undulators very attractive for use in short wavelength free-electron lasers operating in the few nanometers to the Angstrom spectral region. In this paper we discuss the choice of parameters for X-band microwave undulators, the effect of microwave energy losses in the waveguide walls and its possible compensation by tapering the waveguide geometry, and the characteristics of free-electron lasers based on these systems.},
doi = {10.1063/1.2158757},
journal = {AIP Conference Proceedings},
number = 1,
volume = 807,
place = {United States},
year = {Tue Jan 03 00:00:00 EST 2006},
month = {Tue Jan 03 00:00:00 EST 2006}
}