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
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
Carbon removal from a mirror-like gold surface by UV light, RF plasma, and IR laser exposure: a comparative study.
TL;DR: Detailed relative effects on a gold surface after cleaning experiments with three techniques suggest that all three techniques are capable of removing carbon contamination with certain limitations.
Proceedings ArticleDOI
Development of contamination-free x-ray optics for next-generation light sources
Haruhiko Ohashi,Yasunori Senba,Hirokatsu Yumoto,Takahisa Koyama,Takanori Miura,Hikaru Kishimoto +5 more
TL;DR: In this article, typical forms of contamination on X-ray mirrors that cause degradation of beam quality, investigated techniques to remove the contaminants, and proposed methods to eliminate the sources of the contamination.
Book ChapterDOI
Imaging of Objects by Coherent Diffraction of X-Ray Free-Electron Laser Pulses
Shaukat Khan,R.A. Kirian,Henry N. Chapman,Eberhard Jaeschke,Jerome B. Hastings,Jochen R. Schneider +5 more
Book ChapterDOI
Imaging of Objects by Coherent Diffraction of X-Ray FEL Pulses
R.A. Kirian,Henry N. Chapman +1 more
Proceedings ArticleDOI
Binary pseudo-random array standards for calibration of 3D optical surface profilers used for metrology with aspheric x-ray optics
Keiko Munechika,Weilun Chao,Scott Dhuey,Ian Lacey,Carlos Pina-Hernandez,Simon M. Rochester,Valeriy V. Yashchuk +6 more
TL;DR: In this article , the authors propose a technique for calibrating the instrument's transfer function (ITF) of 3D optical surface profilers to the metrology with significantly curved x-ray optics.
References
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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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