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Japan Synchrotron Radiation Research Institute: Sayo, Hyogo, JP

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Takahisa Koyama

Works (8)

Double-multilayer monochromators for high-energy and large-field X-ray imaging applications with intense pink beams at SPring-8 BL20B2

Journal of Synchrotron Radiation
2022-09-01 | Journal article
DOI: 10.1107/S1600577522006610
Contributors: Takahisa Koyama; Yasunori Senba; Hiroshi Yamazaki; Tomoyuki Takeuchi; Masayuki Tanaka; Yasuhiro Shimizu; Koji Tsubota; Yasuhisa Matsuzaki; Hikaru Kishimoto; Takanori Miura et al.
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Stable sub-micrometre high-flux probe for soft X-ray ARPES using a monolithic Wolter mirror

Journal of Synchrotron Radiation
2020-09-01 | Journal article
DOI: 10.1107/S1600577520007274
Contributors: Yasunori Senba; Hikaru Kishimoto; Yoko Takeo; Hirokatsu Yumoto; Takahisa Koyama; Hidekazu Mimura; Haruhiko Ohashi
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Crossref

Generation of an X-ray nanobeam of a free-electron laser using reflective optics with speckle interferometry

Journal of Synchrotron Radiation
2020-07-01 | Journal article
DOI: 10.1107/S1600577520006980
Contributors: Takato Inoue; Satoshi Matsuyama; Jumpei Yamada; Nami Nakamura; Taito Osaka; Ichiro Inoue; Yuichi Inubushi; Kensuke Tono; Hirokatsu Yumoto; Takahisa Koyama et al.
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Intense sub-micrometre focusing of soft X-ray free-electron laser beyond 1016 W cm−2 with an ellipsoidal mirror

Journal of Synchrotron Radiation
2019-09-01 | Journal article
DOI: 10.1107/S1600577519007057
Contributors: Hiroto Motoyama; Shigeki Owada; Gota Yamaguchi; Takehiro Kume; Satoru Egawa; Kensuke Tono; Yuichi Inubushi; Takahisa Koyama; Makina Yabashi; Haruhiko Ohashi et al.
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Crossref

Effective protocol for realizing contamination-free X-ray reflective optics

Review of Scientific Instruments
2019-02 | Journal article
DOI: 10.1063/1.5063262
Contributors: Haruhiko Ohashi; Yasunori Senba; Yoshinori Kotani; Takanori Miura; Hikaru Kishimoto; Takahisa Koyama
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Crossref

Systematic-error-free wavefront measurement using an X-ray single-grating interferometer

Review of Scientific Instruments
2018-04 | Journal article
DOI: 10.1063/1.5026440
Contributors: Takato Inoue; Satoshi Matsuyama; Shogo Kawai; Hirokatsu Yumoto; Yuichi Inubushi; Taito Osaka; Ichiro Inoue; Takahisa Koyama; Kensuke Tono; Haruhiko Ohashi et al.
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Crossref

Damage threshold of coating materials on x-ray mirror for x-ray free electron laser

Review of Scientific Instruments
2016-05 | Journal article
DOI: 10.1063/1.4950723
Contributors: Takahisa Koyama; Hirokatsu Yumoto; Takanori Miura; Kensuke Tono; Tadashi Togashi; Yuichi Inubushi; Tetsuo Katayama; Jangwoo Kim; Satoshi Matsuyama; Makina Yabashi et al.
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Crossref

Stitching interferometry for ellipsoidal x-ray mirrors

Review of Scientific Instruments
2016-05 | Journal article
DOI: 10.1063/1.4950714
Contributors: Hirokatsu Yumoto; Takahisa Koyama; Satoshi Matsuyama; Kazuto Yamauchi; Haruhiko Ohashi
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Crossref
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