E. I. Glushkov, A. A. Akhsakhalyan, P. A. Veprev, I. G. Zabrodin, M. V. Zorina, I. V. Malyshev, M. S. Mikhailenko, A. E. Pestov, E. V. Petrakov, R. S. Pleshkov, E. S. Antushin, V. N. Polkovnikov, D. G. Reunov, A. B. Ulasevich, A. K. Chernyshev, N. I. Chkhalo, R. A. Shaposhnikov, Ya. V. Rakshun, Yu. V. Khomyakov, V. A. Chernov, I. P. Dolbnya, “Double-mirror monochromator for the 4+ generation “SKIF” synchrotron light source”, Zhurnal Tekhnicheskoi Fiziki, 2025, Volume 95, Issue 10,Pages <nobr>1963

XXIX Symposium "Nanophysics and Nanoelectronics" in Nizhny Novgorod, March 10-14, 2025
Experimental instruments and technique

Double-mirror monochromator for the 4+ generation “SKIF” synchrotron light source

E. I. Glushkov^a, A. A. Akhsakhalyan^a, P. A. Veprev^a, I. G. Zabrodin^a, M. V. Zorina^a, I. V. Malyshev^a, M. S. Mikhailenko^a, A. E. Pestov^a, E. V. Petrakov^a, R. S. Pleshkov^a, E. S. Antushin^a, V. N. Polkovnikov^a, D. G. Reunov^a, A. B. Ulasevich^a, A. K. Chernyshev^a, N. I. Chkhalo^a, R. A. Shaposhnikov^a, Ya. V. Rakshun^bc, Yu. V. Khomyakov^bd, V. A. Chernov^b, I. P. Dolbnya^e

^a Institute for Physics of Microstructures, Russian Academy of Sciences, Nizhnii Novgorod
^b G I. Budker Institute of Nuclear Physics, Siberian Branch of the Russian Academy of Sciences, Novosibirsk
^c Sobolev Institute of Geology and Mineralogy, Siberian Branch of the Russian Academy of Sciences, Novosibirsk
^d SRF "SKIF"
^e Diamond Light Source Ltd, Didcot

Abstract: For the fourth-generation synchrotron radiation light source “SKIF” at IPM RAS, a double-mirror monochromator has been developed for the working photon energy range of 10–30 keV. The monochromatization of synchrotron radiation is carried out using multilayer X-ray mirrors. The working range of the device is divided into three subranges: 10–19 keV, 19–30 keV, and 19–30 keV with high spectral resolution. To enable this mode of operation, three strips of multilayer X-ray mirrors Mo/B$_4$C, W/B$_4$C, and Cr/Be, each 6 mm high, are deposited on the substrates. Depending on the photon energy and subrange, the spectral resolution varies from 0.35% to 1.5%. The mirror reflectivity coefficients exceed 60%. Adjustment of subranges is performed by vertical movement of the mirrors. The paper describes the operating principle and design of the device, the methods used for manufacturing high-precision substrates, and the main characteristics of the device and its components.

Keywords: X-ray optics, synchrotron radiation, two-mirror monochromator, multilayer X-ray mirrors.

Received: 06.06.2025
Revised: 06.06.2025
Accepted: 06.06.2025

DOI: 10.61011/JTF.2025.10.61350.125-25