Hydrogen removal by electron cyclotron wall conditioning with neon gas and its impact of tokamak plasma start-up on the QUEST spherical tokamak

Autor: Masakatsu Fukumoto, Qilin Yue, Kazuaki Hanada, Shinichiro Kojima, Tomohide Nakano, Naoaki Yoshida, Ryuya Ikezoe, Yoshihiko Nagashima, Takeshi Ido, Takumi Onchi, Hiroshi Idei, Hiroki Iguchi, Takumi Komiyama, Taiichi Shikama, Akira Ejiri, Suguru Masuzaki, Mizuki Sakamoto, Yoshio Ueda, Kengoh Kuroda, Kaori Kono, Shun Shimabukuro, Aki Higashijima

Publikováno v: Nuclear Fusion, Vol 64, Iss 6, p 066022 (2024)

Electron cyclotron wall conditioning with neon gas (Ne-ECWC) has been performed on the normal conducting spherial tokamak QUEST with metal walls under a trapped particle configuration with O-mode EC waves including X-mode polarization with a frequenc

Externí odkaz: https://doaj.org/article/dc7328719089407c8a782f4e964d75b1

ITPA(国際トカマク物理活動)会合報告(76)

Autor: Satoshi, Yamamoto, Nobuhiko, Hayashi, Masao, Ishikawa, Masakatsu, Fukumoto, Nobuyuki, Aiba

Publikováno v: プラズマ核融合学会誌. 97(10)

国際トカマク物理活動（ITPA）の「高エネルギー粒子物理」、「統合運転シナリオ」、「計測」、「スクレイプオフ層とダイバータ物理」、「周辺ペデスタル物理」の各トピカルグループ

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=jairo_______::913bff061ffa1be9fb9a527c61e606d2
https://repo.qst.go.jp/records/85745

Impact of additional plasma heating on detached plasma formation in divertor simulation experiments using the GAMMA 10/PDX tandem mirror

Autor: Nakashima, Y., Islam, M.S., Iijima, T., Sakamoto, M., Ezumi, N., M.Yoshikawa, Asakura, Nobuyuki, Fukumoto, Masakatsu, Hatayama, A., Hirata, M., Ichimura, M., Ikezoe, R., Imai, T., Islam, M.M., Kariya, T., Kohagura, J., Masuzaki, S., Minami, R., Nakano, T., Nojiri, K., Numakura, T., Sawada, K., Shoji, M., Terakado, A., Togo, S., Yamashita, S., Yoshimoto, T., Nobuyuki, Asakura, Masakatsu, Fukumoto

Publikováno v: Nuclear Materials and Energy. 18:216-221

The transition of a detached to attached plasma experiment has been performed in GAMMA 10/PDX by applying an additional plasma heating pulse of electron cyclotron heating (ECH). In a plasma detachment experiment, a short pulse (25 ms) of ECH was appl

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=jairo_______::c280d9d2f83af987a603e6be6d3cc64b
https://repo.qst.go.jp/records/77560

Risk Factors for Collisions and Near-Miss Incidents Caused by Drowsy Bus Drivers

Autor: Masahito Hitosugi, Masakatsu Fukumoto, Ritsuko Kamegaya, Genta Miyama

Publikováno v: International Journal of Environmental Research and Public Health
Volume 17
Issue 12
International Journal of Environmental Research and Public Health, Vol 17, Iss 4370, p 4370 (2020)

Serious accidents have been caused by drowsy bus drivers and have necessitated an examination of the risk factors involved. A questionnaire survey among employees of a bus company was conducted in Ibaraki Prefecture, Japan in September 2014. Responde

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cc541abdb0f4384ee79c810c5c0c261e
http://europepmc.org/articles/PMC7345026

In-vessel components for initial operation of JT-60SA

Autor: Takechi, Manabu, Tsuru, Daigo, Fukumoto, Masakatsu, Sasajima, Tadayuki, Matsunaga, Go, Nakamura, Shigetoshi, Yamamoto, Satoshi, Itashiki, Yutaro, Hayashi, Takao, Isayama, Akihiko, Manabu, Takechi, Daigo, Tsuru, Masakatsu, Fukumoto, Tadayuki, Sasajima, Go, Matsunaga, Shigetoshi, Nakamura, Satoshi, Yamamoto, Yutaro, Itashiki, Takao, Hayashi, Akihiko, Isayama

Publikováno v: Fusion Engineering and Design. 168:112572

JT-60SAのファーストプラズマに向けて真空容器内機器の製作と設置を行った。真空容器内機器は、プラズマ対向壁、保護リミタ、グロー電極、および磁気センサーで構成される。これらは

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=jairo_______::352d71684f66cba3fa0da513257d681e
https://repo.qst.go.jp/records/83520