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This article is cited in 2 scientific papers (total in 2 papers)
XXV International Symposium on Nanophysics and Nanoelectronics, Nizhny Novgorod, March 9--12, 2021
Photonics
Design of a high-resolution VLS monochromator for synchrotron radiation
A. N. Shatokhina, E. A. Vishnyakova, A. O. Kolesnikova, A. D. Nikolenkobc, E. N. Ragozina a P. N. Lebedev Physical Institute of the Russian Academy of Sciences, Moscow
b G I. Budker Institute of Nuclear Physics, Siberian Branch of the Russian Academy of Sciences, Novosibirsk
c Boreskov Institute of Catalysis SB RAS, Novosibirsk
Abstract:
A high-resolution monochromator with a broad spectral range of 125 – 4200 $\mathring{\mathrm{A}}$ is designed for the measuring beamline for the projected synchrotron radiation source “SKIF” (Novosibirsk). The optical configuration of the monochromator comprises a grazing-incidence concave mirror, a plane VLS grating, and an exit slit. It is planned to use two replaceable VLS gratings with central line frequencies of 600 mm$^{-1}$ and 150 mm$^{-1}$ intended for subranges of 125 – 1000 $\mathring{\mathrm{A}}$ and 900 – 4200 $\mathring{\mathrm{A}}$, respectively. Wavelength tuning in each of the two subranges is effected by only the rotation of the VLS-gratings. Due to the proper choice of $p_1$ VLS-grating coefficients, the focal distance varies only slightly over the entire spectral range, and the $p_2$ VLS-grating coefficients are used to suppress the aberrations of the mirror and the gratings. The resolving power of the configuration obtained by numerical ray tracing exceeds 1000 in the 125 – 1000 $\mathring{\mathrm{A}}$ range and 2000 in the 900 – 4200 $\mathring{\mathrm{A}}$ range.
Keywords:
VUV, spectroscopy, VLS-grating, synchrotron radiation.
Received: 29.03.2021 Revised: 29.03.2021 Accepted: 29.03.2021
Citation:
A. N. Shatokhin, E. A. Vishnyakov, A. O. Kolesnikov, A. D. Nikolenko, E. N. Ragozin, “Design of a high-resolution VLS monochromator for synchrotron radiation”, Zhurnal Tekhnicheskoi Fiziki, 91:10 (2021), 1548–1554
Linking options:
https://www.mathnet.ru/eng/jtf4925 https://www.mathnet.ru/eng/jtf/v91/i10/p1548
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