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Proceedings Paper

Analysis of insertion device magnet measurements for the advanced light source
Author(s): Steve Marks; David E. Humphries; Brian M. Kincaid; Ross D. Schlueter; Chunxi Wang
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Paper Abstract

The Advanced Light Source (ALS), which is currently being commissioned at Lawrence Berkeley Laboratory, is a third generation light source designed to produce XUV radiation of unprecedented brightness. To meet the high brightness goal the storage ring has been designed for very small electron beam emittance and the undulators installed in the ALS are built to a high degree of precision. The allowable magnetic field errors are driven by electron beam and radiation requirements. Detailed magnetic measurements and adjustments are performed on each undulator to qualify it for installation in the ALS. The first two ALS undulators, IDA and IDB, have been installed. This paper describes the program of measurements, data analysis, and adjustments carried out for these two devices. Calculations of the radiation spectrum, based upon magnetic measurements, are included. Final field integral distributions are also shown. Good field integral uniformity has been achieved using a novel correction scheme, which is also described.

Paper Details

Date Published: 29 November 1993
PDF: 11 pages
Proc. SPIE 2013, Electron-Beam Sources of High-Brightness Radiation, (29 November 1993); doi: 10.1117/12.164798
Show Author Affiliations
Steve Marks, Lawrence Berkeley Lab. (United States)
David E. Humphries, Lawrence Berkeley Lab. (United States)
Brian M. Kincaid, Lawrence Berkeley Lab. (United States)
Ross D. Schlueter, Lawrence Berkeley Lab. (United States)
Chunxi Wang, Lawrence Berkeley 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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