期刊
出版社
ELSEVIER
DOI: 10.1016/j.nima.2008.12.227
关键词
Soft X-ray; Spectrometer; Interferometer; RIXS; X-ray spectroscopy; Fourier transform spectrometer
类别
资金
- K&A Wallenberg Foundation
- Swedish Research Council
Two alternative instrument designs to the traditional Rowland grating spectrometer for high resolution ultra-soft X-ray spectroscopy are presented. The first instrument is a plane grating spectrometer using off-axis parabolic mirrors for collection and refocusing, and with a spatially resolving multichannel detector with delay line read-out. The instrument offers substantially higher performance in terms of resolution and sensitivity than traditional instruments. The second instrument is a Fourier transform spectrometer based on a grazing incidence Mach-Zehnder interferometer using wavefront dividing beamsplitters. The path length difference can be scanned over 0.1 mm, which corresponds to a resolution of 12 meV. (C) 2009 Elsevier B.V. All rights reserved.
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