Abstract
The approximate threshold electron energy, below which the free-electron energy (FEL) design would not be considered optimal in the sense that a slight increase of the beam energy would make the FEL much more efficient, to generate a given wavelength FEL for a given magnet undulator strength is estimated by analyzing the FEL parameter, ρ, with the help of the undulator resonance condition. This threshold energy is converted to the threshold value of the undulator parameter, K.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
J. Madey, J. Appl. Phys. 42, 1906 (1971).
R. Bonifacio, C. Pellegrini and L. Narducci, Opt. Commun. 50, 373 (1984).
K.-J. Kim, AIP Conference Proceedings 184, 565 (1989).
T. Shintake, Proceedings of 2007 FEL Conference (Novosibirsk, Russia, 2007), p. 216.
P. Emma, Proceedings of PAC 09 (British Columbia, Canada, 2009), p. 3115.
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Lee, TY., Lee, H.S. Analysis of the X-ray free-electron laser parameter and determination of the optimal electron energy and undulator. Journal of the Korean Physical Society 63, 1728–1730 (2013). https://doi.org/10.3938/jkps.63.1728
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.3938/jkps.63.1728