Zobrazeno 1 - 10
of 25
pro vyhledávání: '"Tomohiko, Ushiki"'
Autor:
Hiroki Natsume, Kunpei Nojiri, Shin Kajita, Makoto Fukuda, Tomohiko Ushiki, Hirohiko Tanaka, Tatsuo Sugie, Sin-iti Kitazawa, Takanori Kikuchi, Tomohiro Yokozuka, Noriyasu Ohno, Koichiro Ezato, Takaki Hatae
Publikováno v:
Nuclear Materials and Energy, Vol 33, Iss , Pp 101243- (2022)
The bidirectional reflectance distribution function (BRDF) of recrystallized tungsten mono-blocks exposed to cyclic heat loading for ITER divertor outer vertical target was measured using a goniophotometer at a wavelength of 473 nm. Laser microscope
Externí odkaz:
https://doaj.org/article/48d3116edc9a485591bfa2a2aa390943
Autor:
Tomohiko Ushiki, Ryota Imazawa, Hidetoshi Murakami, Kosuke Shimizu, Tatsuo Sugie, Takaki Hatae
Publikováno v:
The Review of scientific instruments. 93(8)
A new temperature measurement method—the dual two-color method—was developed to accurately measure the temperature over an ultra-wide temperature range (200–3600 °C) for ITER divertor infrared thermography. This novel method introduces a third
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c4418ca81ddf4adc326acfcd78feb335
https://pubmed.ncbi.nlm.nih.gov/36050116
https://pubmed.ncbi.nlm.nih.gov/36050116
Autor:
Sin-iti KITAZAWA, Eiichi YATSUKA, Masao ISHIKAWA, Tomohiko USHIKI, Toshihiro OIKAWA, Hiroaki OGAWA, Ryota IMAZAWA, Kunpei NOJIRI, Takanori KIKUCHI, Tomohiro YOKOZUKA, Hidetoshi MURAKAMI, Kosuke SHIMIZU, Tatsuo SUGIE, Kazuhiro TORIMOTO, Moriyoshi INAMINE, Shigehiro KONO, Yoshihiko NUNOYA
Publikováno v:
Plasma and Fusion Research. 18:2405014-2405014
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::920a571d88ca2beb77af195a45bd1582
https://doi.org/10.1585/pfr.18.2405014
https://doi.org/10.1585/pfr.18.2405014
Autor:
Tomohiko, Ushiki, Ryota, Imazawa, Hidetoshi, Murakami, Kosuke, Shimizu, Tatsuo, Sugie, Hiroyuki, Okazaki, Kitazawa, Sin-iti, Masao, Ishikawa, Takaki, Hatae
ITERダイバータ赤外サーモグラフィでは高い放射線環境下にミラー及びレンズを配置し光を伝送する。そのため、ITERでの全運転期間を通して顕著な光学特性の劣化がない光学材料の選定
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=jairo_______::4d185a37822179fc4ff8e1b0053041bf
https://repo.qst.go.jp/records/84297
https://repo.qst.go.jp/records/84297
Autor:
Hiroki, Natsume, Kunpei, Nojiri, Makoto, Fukuda, Tomohiko, Ushiki, Tatsuo, Sugie, Kitazawa, Sin-iti, Takanori, Kikuchi, Tomohiro, Yokozuka, Koichiro, Ezato, Takaki, Hatae
ITERではタングステン(W)ダイバータ板等で反射した光の混入によるプラズマ発光計測の精度悪化が問題視されており、この反射特性は壁面の表面状態に依存する。本研究では、様々な熱負
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=jairo_______::6a47cd5c1311dfbaffe68368c3f6697a
https://repo.qst.go.jp/records/84409
https://repo.qst.go.jp/records/84409
Autor:
Hiroki, Natsume, Kunpei, Nojiri, Tomohiko, Ushiki, Tatsuo, Sugie, Kitazawa, Sin-iti, Takanori, Kikuchi, Tomohiro, Yokozuka, Takaki, Hatae
ITERのダイバータは光の反射率の高いタングステン（W）で製造されるため、プラズマ分光計測器の測定光にダイバータ表面からの反射光が混入し、プラズマ発光量評価の精度が低下する
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=jairo_______::9954e7a654a08c4bc9da4e8064127918
https://repo.qst.go.jp/records/84410
https://repo.qst.go.jp/records/84410
Publikováno v:
プラズマ・核融合学会誌. 97(3):P210-P212
1.令和2年12月22日にITER/BA成果報告会2020が、開催され、ITER計画とBA活動に関して、核融合エネルギーの実現に向けた最新の成果と進捗が紹介された。初の試みとなるYouTubeライブ配信では570
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=jairo_______::0665548f2565ea030e417ef795bb152f
https://repo.qst.go.jp/records/82491
https://repo.qst.go.jp/records/82491
Autor:
Hiroki NATSUME, Kunpei NOJIRI, Shin KAJITA, Tomohiko USHIKI, Tatsuo SUGIE, Sin-iti KITAZAWA, Takanori KIKUCHI, Tomohiro YOKOZUKA, Hirohiko TANAKA, Noriyasu OHNO, Takaki HATAE
Publikováno v:
Plasma and Fusion Research. 17:2405041-2405041
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9e67efd2c088c187e8250459b4ac0fcb
https://doi.org/10.1585/pfr.17.2405041
https://doi.org/10.1585/pfr.17.2405041
Autor:
Shinichi, Kitazawa, Takaki, Hatae, Masao, Ishikawa, Toshihiro, Oikawa, Ryota, Imazawa, Eiichi, Yatsuka, Hiroaki, Ogawa, Tomohiko, Ushiki, Suguru, Tanaka, Sugie, Tatsuo, Hidetoshi, Murakami, Kosuke, Shimizu, Yokozuka, Tomohiro, Takanori, Kikuchi
量研ITERプロジェクト部では、マイクロフィッションチェンバー(MFC)、ポロイダル偏光計(PoPola)、周辺トムソン散乱計測(ETS)、ダイバータ不純物モニター(DIM)、ダイバータ赤外線サーモグラ
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=jairo_______::701ce3402831743b4c341cedab9560d5
https://repo.qst.go.jp/records/82234
https://repo.qst.go.jp/records/82234
Autor:
Kosuke Shimizu, Ryota Imazawa, Tomohiko Ushiki, Hidetoshi Murakami, Takaki Hatae, Tatsuo Sugie
Publikováno v:
Fusion Engineering and Design. 168:112665
This study developed a new correction method to reduce errors in temperature measurement caused by temperature-dependent emissivity for ITER divertor infrared (IR) thermography. In order to develop the method, we measured the spectral emissivity of t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::92dbc1d014f8f0f2732b07764dc8b855
https://doi.org/10.1016/j.fusengdes.2021.112665
https://doi.org/10.1016/j.fusengdes.2021.112665