M. Koike   T. Hatano   A. S. Pirozhkov   Y. Ueno   M. Terauchi   
Review of Scientific Instruments 95(2) 2024年2月 [査読有り]
A soft x-ray varied-line-spacing (VLS) laminar-type spherical grating with a super-mirror-type (SMT) multilayer was designed for a soft x-ray high resolution flat-field spectrograph in a region of 2–4 keV. The effective groove density of the desig...
Review of Scientific Instruments 94(12) 2023年12月 [査読有り]
Laminar-type spherical diffraction gratings overcoated with carbon-based materials were designed, fabricated, and evaluated for the purpose of enhancing the analytical sensitivity of the flat-field spectrograph in a vacuum ultraviolet region of 35...
M. Koike   T. Hatano   A. S. Pirozhkov   Y. Ueno   M. Terauchi   
Review of Scientific Instruments 94(4) 045109-045109 2023年4月 [査読有り]
Soft x-ray diffraction gratings coated with a supermirror-type multilayer were designed to enhance diffraction efficiency in the energy range of 2–4 keV by means of numerical calculations. The optimized groove depth and incidence angle are 2.05 nm...