Design of a High-Resolution VLS Monochromator for Synchrotron Radiation

被引：0
|
作者：
Shatokhin, A. N. [1 ]
Vishnyakov, E. A. [1 ]
Kolesnikov, A. O. [1 ]
Nikolenko, A. D. [2 ,3 ]
Ragozin, E. N. [1 ]
机构：
[1] Russian Acad Sci, Lebedev Phys Inst, Moscow 119991, Russia
[2] Russian Acad Sci, Budker Inst Nucl Phys, Siberian Branch, Novosibirsk 630090, Russia
[3] RAS, Boreskov Inst Catalysis, Siberian Branch, Novosibirsk 630090, Russia
来源：
TECHNICAL PHYSICS | 2024年 / 69卷 / 02期
关键词：
VUV; spectroscopy; VLS-grating; synchrotron radiation; IMAGING SPECTROMETER; WAVELENGTH RANGE; GRATINGS;
D O I：
10.1134/S1063784224010365
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
A high-resolution monochromator with a broad spectral range of 125-4200 angstrom is designed for a measuring beamline of 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 groove frequencies of 600 and 150 mm(-1) intended for subranges of 125-1000 angstrom and 900-4200 angstrom, respectively. Wavelength tuning in each of the two subranges is carried out by solely 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 angstrom range and 2000 in the 900-4200 angstrom range.
引用
收藏
页码：392 / 398
页数：7
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