H
H. Ego
Publications - 36
Citations - 1632
H. Ego is an academic researcher. The author has contributed to research in topics: SACLA & Beam (structure). The author has an hindex of 9, co-authored 34 publications receiving 1459 citations.
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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.
Journal ArticleDOI
Beam monitor system for an x-ray free electron laser and compact laser
Yuji Otake,Hirokazu Maesaka,Shinichi Matsubara,Shinobu Inoue,Kenichi Yanagida,H. Ego,Chikara Kondo,Tatsuyuki Sakurai,Toshihiro Matsumoto,Hiromitsu Tomizawa +9 more
TL;DR: In this article, a beam-monitor system for XFEL/SPring 8, ''SACLA'' has been constructed to satisfy the spatial and temporal stability and resolution criteria.
Journal ArticleDOI
Sub-micron resolution rf cavity beam position monitor system at the SACLA XFEL facility
Hirokazu Maesaka,H. Ego,S. Inoue,Shinichi Matsubara,Takashi Ohshima,Tsumoru Shintake,Yuji Otake +6 more
TL;DR: In this paper, a C-band cavity beam position monitor (RF-BPM) system for the XFEL facility at SPring-8, SACLA is presented.
Journal ArticleDOI
Transverse C-band deflecting structure for longitudinal electron-bunch-diagnosis in XFEL “SACLA”
TL;DR: In this article, a high-gradient C-band RF deflecting structure 1.8m long and periodically loaded with racetrack-shaped irises was used to measure the longitudinal profile of an ultrashort electron bunch and verify the compression.
Journal ArticleDOI
Low-emittance thermionic-gun-based injector for a compact free-electron laser
Takao Asaka,H. Ego,H. Hanaki,Toru Hara,Taichi Hasegawa,Teruaki Hasegawa,Takahiro Inagaki,T. Kobayashi,Chikara Kondo,Hirokazu Maesaka,Shinichi Matsubara,Sakuo Matsui,Takashi Ohshima,Yuji Otake,Tatsuyuki Sakurai,Shinsuke Suzuki,Yasuyuki Tajiri,Shinichiro Tanaka,Kazuaki Togawa,Hitoshi Tanaka +19 more
TL;DR: In this paper, a low-emittance thermionic-gun-based injector was developed for the x-ray free-electron laser (XFEL) facility known as the SPring-8 angstrom compact free electron laser (SACLA), which has the advantages of maintainability, reliability, and stability over a photocathode radio-frequency (rf) gun because of its robust thermionic cathode.