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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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
Surface figure correction with roughness reduction using carbon-doped platinum film for high-precision X-ray mirror fabrication.
TL;DR: In this paper , the authors used differential deposition to obtain the surface shape of an X-ray mirror with high precision, instead of a direct removal method, and they used a co-deposition method to suppress the increase in surface roughness.
Proceedings ArticleDOI
Design and fabrication of diamond-based coherent x-ray compound refractive lens
TL;DR: In this paper, a simulation modal for compound refractive lens and fabricate a diamond based Compound Refractive Lens access to high repetition rate extremely brilliant coherent X-ray source is presented.
Journal ArticleDOI
X-ray adaptive zoom condenser utilizing an intermediate virtual focus.
Satoshi Matsuyama,Hiroyuki Yamaguchi,Takato Inoue,Yuka Nishioka,Jumpei Yamada,Yasuhisa Sano,Yoshiki Kohmura,Makina Yabashi,Tetsuya Ishikawa,Kazuto Yamauchi +9 more
TL;DR: In this article, an extended X-ray adaptive zoom condenser that can form an intermediate virtual focus is proposed, which comprises two deformable mirrors for focusing within a single dimension and can vary its numerical aperture without changing the positions of the light source, mirrors, or final focus.
Book ChapterDOI
Visualization of Intracellular Elements Using Scanning X-Ray Fluorescence Microscopy
TL;DR: A scanning X-ray fluorescence microscopy system is described, which can reliably determine the cellular distribution of multiple elements by a sub-100-nm focusing approach, together with its applications.
Journal ArticleDOI
Soft X-ray grating monochromators as a source of spatial coherence degradation: A wave-optical approach
TL;DR: In this paper , a coherence analysis of the photon beam transported through a soft X-ray beamline, paying particular attention to a focusing varied line spacing (VLS) plane grating monochromator (PGM), is presented.
References
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TL;DR: Hanbury-Brown and Twiss as mentioned in this paper showed that photon detections in the two daughter beams were correlated: the photons were bunching together, which corresponded to a correlation in the intensity of light in two beams, which could be used to infer the angular size of distant stars.
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Journal Article
Correlation between photons in two coherent beams of light
R. H. Brown,R. Q. Twiss +1 more
Journal ArticleDOI
A compact X-ray free-electron laser emitting in the sub-ångström region
Tetsuya Ishikawa,Hideki Aoyagi,Takao Asaka,Yoshihiro Asano,Noriyoshi Azumi,T. Bizen,H. Ego,Kenji Fukami,Toru Fukui,Yukito Furukawa,Shunji Goto,Hirofumi Hanaki,Toru Hara,Teruaki Hasegawa,Takaki Hatsui,Atsushi Higashiya,T. Hirono,Naoyasu Hosoda,Miho Ishii,Takahiro Inagaki,Yuichi Inubushi,Toshiro Itoga,Yasumasa Joti,Masahiro Kago,Takashi Kameshima,Hiroaki Kimura,Yoichi Kirihara,Akio Kiyomichi,T. Kobayashi,Chikara Kondo,Togo Kudo,Hirokazu Maesaka,Xavier Maréchal,Takemasa Masuda,Shinichi Matsubara,Takahiro Matsumoto,Tomohiro Matsushita,Sakuo Matsui,Mitsuru Nagasono,Nobuteru Nariyama,Haruhiko Ohashi,Toru Ohata,Takashi Ohshima,Shun Ono,Yuji Otake,Choji Saji,Tatsuyuki Sakurai,Takahiro Sato,Kei Sawada,T. Seike,Katsutoshi Shirasawa,Takashi Sugimoto,Shinsuke Suzuki,Sunao Takahashi,Hideki Takebe,Kunikazu Takeshita,Kenji Tamasaku,Hitoshi Tanaka,Ryotaro Tanaka,Takashi Tanaka,Tadashi Togashi,Kazuaki Togawa,Atsushi Tokuhisa,Hiromitsu Tomizawa,Kensuke Tono,Shukui Wu,Makina Yabashi,Mitsuhiro Yamaga,Akihiro Yamashita,Kenichi Yanagida,Chao Zhang,Tsumoru Shintake,Hideo Kitamura,Noritaka Kumagai +73 more
TL;DR: In this paper, the SPring-8 Angstrom Compact Free-Electron Laser (CFEL) was used for sub-angstrom fundamental-wavelength lasing at the Tokyo National Museum.
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