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Proceedings Paper

Self-consistent analysis of wiggler imperfections in free-electron lasers
Author(s): Henry P. Freund; Robert H. Jackson
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Paper Abstract

A self-consistent analysis of weight field errors in free-electron lasers is described using the 3D simulation code WIGGLIN. The 3D wiggler field model chosen is able to treat gradients in the wiggler amplitude since both the divergence of the field as well as the axial component of the curl vanish identically while the transverse components of the curl are small. Hence, the field model is well-suited to the treatment of small imperfections in the wiggler amplitude. In order to describe the wiggler imperfections, a random variation is chosen to determine the pole-to-pole variations in the wiggler amplitude and a continuous map is used between the pole faces. The specific parameters chosen for study correspond to the high-power 35-GHz free- electron laser experiment conducted at Lawrence Livermore National Laboratory; however, the fundamental physics issues are relevant to the entire range of free-electron laser experiments.

Paper Details

Date Published: 29 November 1993
PDF: 7 pages
Proc. SPIE 2013, Electron-Beam Sources of High-Brightness Radiation, (29 November 1993); doi: 10.1117/12.164790
Show Author Affiliations
Henry P. Freund, Naval Research Lab. (United States)
Robert H. Jackson, Naval Research Lab. (United States)


Published in SPIE Proceedings Vol. 2013:
Electron-Beam Sources of High-Brightness Radiation
Henry P. Freund, Editor(s)

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