Optics for coherent X-ray applications.
Makina Yabashi,Kensuke Tono,Hidekazu Mimura,Satoshi Matsuyama,Kazuto Yamauchi,Takashi Tanaka,Hitoshi Tanaka,Kenji Tamasaku,Haruhiko Ohashi,Shunji Goto,Tetsuya Ishikawa +10 more
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TLDR
Developments of optics for coherent X-ray applications and their role in diffraction-limited storage rings are described.Abstract:
Developments of X-ray optics for full utilization of diffraction-limited storage rings (DLSRs) are presented. The expected performance of DLSRs is introduced using the design parameters of SPring-8 II. To develop optical elements applicable to manipulation of coherent X-rays, advanced technologies on precise processing and metrology were invented. With propagation-based coherent X-rays at the 1 km beamline of SPring-8, a beryllium window fabricated with the physical-vapour-deposition method was found to have ideal speckle-free properties. The elastic emission machining method was utilized for developing reflective mirrors without distortion of the wavefronts. The method was further applied to production of diffraction-limited focusing mirrors generating the smallest spot size in the sub-10 nm regime. To enable production of ultra-intense nanobeams at DLSRs, a low-vibration cooling system for a high-heat-load monochromator and advanced diagnostic systems to characterize X-ray beam properties precisely were developed. Finally, new experimental schemes for combinative nano-analysis and spectroscopy realised with novel X-ray optics are discussed.read more
Citations
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Journal ArticleDOI
Diffraction-limited storage rings - a window to the science of tomorrow.
TL;DR: This article summarizes the contributions in this special issue on Diffraction-Limited Storage Rings and analyses the progress in accelerator technology enabling a significant increase in brightness and coherent fraction of the X-ray light provided by storage rings.
Journal ArticleDOI
Short-wavelength free-electron laser sources and science: a review
E. A. Seddon,E. A. Seddon,E. A. Seddon,J. A. Clarke,J. A. Clarke,David Dunning,David Dunning,Claudio Masciovecchio,Christopher J. Milne,Fulvio Parmigiani,Fulvio Parmigiani,D Rugg,John C. H. Spence,N.R. Thompson,N.R. Thompson,Kiyoshi Ueda,Sam Vinko,Justin Wark,Wilfried Wurth +18 more
TL;DR: This review is focused on free-electron lasers (FELs) in the hard to soft x-ray regime and provides newcomers to the area with insights into: the basic physics of FELs, the qualities of the radiation they produce, the challenges of transmitting that radiation to end users and the diversity of current scientific applications.
Journal ArticleDOI
Overview of the SACLA facility.
TL;DR: An overview of SACLA operating as a user facility and the updated status of the light source and the beamline is summarized.
Journal ArticleDOI
New developments in high-pressure X-ray diffraction beamline for diamond anvil cell at SPring-8
TL;DR: An overview of the recently renovated high-pressure X-ray diffraction (XRD) BL10XU beamline for the diamond anvil cell at SPring-8 is presented in this article.
Journal ArticleDOI
Design of the mirror optical systems for coherent diffractive imaging at the SPB/SFX instrument of the European XFEL
TL;DR: In this article, the authors present the design and simulated performance of two state-of-the-art Kirkpatrik-Baez mirror systems that form the primary foci of the single particles, clusters and biomolecules and serial femtosecond crystallography (SPB/SFX) instrument of the European XFEL.
References
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Proceedings ArticleDOI
Diamond Double‐Crystal Monochromator for SPring‐8 Undulator Beamlines
M. Yabashi,S. Goto,Yasuhiro Shimizu,K. Tamasaku,H. Yamazaki,Y. Yoda,Motohiro Suzuki,Y. Ohishi,M. Yamamoto,T. Ishikawa +9 more
TL;DR: In this paper, a diamond (111) double-crystal monochromators with indirect water cooling are tested at undulator beamlines of SPring-8 and it was found that the cooling capability is sufficient even for an incident power of 370 W (power density of 450 W/mm2) and measured photon flux was nearly equal to the theoretical value.
Journal ArticleDOI
Improvement in stability of SPring-8 X-ray monochromators with cryogenic-cooled silicon crystals
Hiroshi Yamazaki,Haruhiko Ohashi,Yasunori Senba,Tomoyuki Takeuchi,Yasuhiro Shimizu,Masayuki Tanaka,Yasuhisa Matsuzaki,Hikaru Kishimoto,Takanori Miura,Yasuko Terada,Motohiro Suzuki,Hiroo Tajiri,Shunji Goto,Masaki Yamamoto,Masaki Takata,Tetsuya Ishikawa +15 more
TL;DR: In this paper, a low-vibration flexible tube was devised to stabilize the coolant flow by covering the corrugations of the flexible tube with an alumina fiber textile to achieve thermal insulation.
Journal ArticleDOI
Stitching-angle measurable microscopic-interferometer: Surface-figure metrology tool for hard X-ray nanofocusing mirrors with large curvature
Hirokatsu Yumoto,Hidekazu Mimura,Hidekazu Mimura,Soichiro Handa,Takashi Kimura,Satoshi Matsuyama,Yasuhisa Sano,Haruhiko Ohashi,Kazuto Yamauchi,Tetsuya Ishikawa +9 more
TL;DR: In this paper, an optical profilometer system for evaluating mirrors that are used for hard X-ray nanofocusing is proposed, which is based on a stitching interferometer that can determine stitching angles between adjacent local surface profiles.
Proceedings ArticleDOI
Development of a numerically controlled elastic emission machining system for fabricating mandrels of ellipsoidal focusing mirrors used in soft x-ray microscopy
Yoshinori Takei,Takehiro Kume,Hiroto Motoyama,Kentaro Hiraguri,Hirokazu Hashizume,Hidekazu Mimura +5 more
TL;DR: In this paper, the authors proposed and developed a manufacturing process of the ellipsoidal mirror, which can focus X-rays to a nanometer size with a large aperture and no chromatic aberration.
Proceedings ArticleDOI
Characterization of Beryllium Windows for Coherent X-ray Optics
TL;DR: In this article, Beryllium foils fabricated by several processes were characterized using spatially coherent x rays at 1.8 km beamline of SPring 8, and it was found that speckles (bright x-ray spots) were due to voids with densities 103−104 mm−3 in powder foils and ingot foils.
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