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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 41, Iss. 1 — Jan. 1, 2002
  • pp: 245–257

Grazing-Incidence Monk-Gillieson Monochromator Based on Surface Normal Rotation of a Varied-Line-Spacing Grating

Masato Koike and Takeshi Namioka  »View Author Affiliations


Applied Optics, Vol. 41, Issue 1, pp. 245-257 (2002)
http://dx.doi.org/10.1364/AO.41.000245


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Abstract

A geometric theory of a grazing-incidence varied-line-spacing plane-grating monochromator system whose scanning is made by a simple grating rotation about the grating normal has been developed for designing Monk–Gillieson monochromators capable of covering an energy range of 0.6–2.5 keV. Analytic expressions are given for the grating equations, focal conditions, dispersion, spectral image shape, and optimization of groove parameters. On the basis of the theory, two monochromator systems have been designed: system I for moderate resolution and system II for relatively high resolution. The validity of the analytic formulas and the expected performance of the designed systems have been evaluated by means of ray tracing. The results show that the analytic formulas are sufficiently accurate for practical applications and that systems I and II would provide resolving power of approximately 1450–600 and 7500–2000, respectively, in the wavelength region of 0.5–2.0 nm.

© 2002 Optical Society of America

OCIS Codes
(050.2770) Diffraction and gratings : Gratings
(300.6170) Spectroscopy : Spectra
(300.6190) Spectroscopy : Spectrometers
(340.0340) X-ray optics : X-ray optics

Citation
Masato Koike and Takeshi Namioka, "Grazing-Incidence Monk-Gillieson Monochromator Based on Surface Normal Rotation of a Varied-Line-Spacing Grating," Appl. Opt. 41, 245-257 (2002)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-41-1-245

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