First application of data assimilation-based control to fusion plasma

Autor: Yuya Morishita, Sadayoshi Murakami, Naoki Kenmochi, Hisamichi Funaba, Ichihiro Yamada, Yoshinori Mizuno, Kazuki Nagahara, Hideo Nuga, Ryosuke Seki, Masayuki Yokoyama, Genta Ueno, Masaki Osakabe

Publikováno v: Scientific Reports, Vol 14, Iss 1, Pp 1-11 (2024)

Abstract Magnetic fusion plasmas, which are complex systems comprising numerous interacting elements, have large uncertainties. Therefore, future fusion reactors require prediction-based advanced control systems with an adaptive system model and cont

Externí odkaz: https://doaj.org/article/63e455de52fe42378329afec9f5375d4

Development of prototype real-time Thomson scattering diagnostic in KSTAR

Autor: Jong-ha Lee, Seung Ju Lee, Ha Jin Kim, Sang Hee Hahn, Ichihiro Yamada, H. Funaba

Publikováno v: Fusion Engineering and Design. 190:113532

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::d7e55808131607e16ff71164279b2db1
https://doi.org/10.1016/j.fusengdes.2023.113532

Initial operation and data processing on a system for real-time evaluation of Thomson scattering signals on the Large Helical Device

Autor: G. Tchilinguirian, S. Doskoczynski, Hisamichi Funaba, Ryo Yasuhara, Z.A. Xing, Ahmed Diallo, G. Zimmer, R. Rozenblat, Florian Laggner, Kenneth Hammond, David Gates, Egemen Kolemen, Ichihiro Yamada, Chris B. Freeman

Publikováno v: The Review of scientific instruments. 92(6)

A scalable system for real-time analysis of electron temperature and density based on signals from the Thomson scattering diagnostic, initially developed for and installed on the NSTX-U experiment, was recently adapted for the Large Helical Device (L

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bb51dd6714c05b54e17e9b4cfb0fc893
https://pubmed.ncbi.nlm.nih.gov/34243539

Isotope effects on transport in LHD

Autor: Tsuyoshi Akiyama, Motoshi Goto, Tuomas Tala, Tokihiko Tokuzawa, Clive Michael, Hideaki Yamada, Haruhisa Nakano, Mamoru Shoji, Katsumi Ida, Toru Ii Tsujimura, Kenji Tanaka, Yasuo Yoshimura, Y. Ohtani, Sadayoshi Murakami, Suguru Masuzaki, Hiroto Takahashi, Felix Warmer, Shinsuke Satake, Y. Takemura, Hisamichi Funaba, Kiyofumi Mukai, L. N. Vacheslavov, Masaki Osakabe, Kenichi Nagaoka, Gen Motojima, Tomohiro Morisaki, Ryuichi Sakamoto, Motoki Nakata, Masayuki Yokoyama, S. Morita, Shin Kubo, Ryo Yasuhara, T. Kobayashi, Mikiro Yoshinuma, Toshiki Kinoshita, Ichihiro Yamada, Masanori Nunami, Hiroe Igami, Ryosuke Seki, T. Oishi, Takashi Shimozuma

Publikováno v: Plasma Physics and Controlled Fusion
Tanaka, K, Nagaoka, K, Ida, K, Yamada, H, Kobayashi, T, Satake, S, Nakata, M, Kinoshita, T, Ohtani, Y, Tokuzawa, T, Takahashi, H, Warmer, F, Mukai, K, Murakami, S, Sakamoto, R, Nakano, H, Osakabe, M, Morisaki, T, Nunami, M, Tala, T, Tsujimura, T, Takemura, Y, Yokoyama, M, Seki, R, Igami, H, Yoshimura, Y, Kubo, S, Shimozuma, T, Akiyama, T, Yamada, I, Yasuhara, R, Funaba, H, Yoshinuma, M, Goto, M, Oishi, T, Morita, S, Motojima, G, Shoji, M, Masuzaki, S, Michael, C A & Vacheslavov, L N 2021, ' Isotope effects on transport in LHD ', Plasma Physics and Controlled Fusion, vol. 63, no. 9, 094001 . https://doi.org/10.1088/1361-6587/abffb6
K Tanaka et al 2021 Plasma Phys. Control. Fusion 63 094001

Isotope effects are one of the most important issues for predicting future reactor operations. Large helical device (LHD) is the presently working largest stellarator/helical device using super conducting helical coils. In LHD, deuterium experiments

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d40532fa0b84afc77a603bd1b7c9e885
https://hdl.handle.net/21.11116/0000-0008-FC96-321.11116/0000-0008-FC98-1

Extended investigations of isotope effects on ECRH plasma in LHD

Autor: Mamoru Shoji, Katsumi Ida, Ryosuke Seki, Gen Motojima, Ichihiro Yamada, Masanori Nunami, S. Satake, Hiroto Takahashi, Hisamichi Funaba, Masayuki Yokoyama, Tuomas Tala, Hiroshi Yamada, Clive Michael, Suguru Masuzaki, Shin Kubo, L. N. Vacheslavov, Y. Ohtani, Motoki Nakata, Masaki Osakabe, Tomohiro Morisaki, Tokihiko Tokuzawa, Kenji Tanaka, Toru Ii Tsujimura, Motoshi Goto, Ryo Yasuhara, Yasuo Yoshimura, Mikiro Yoshinuma, Felix Warmer, Y. Takemura, Tsuyoshi Akiyama, Hiroe Igami, Toshiki Kinoshita, Takashi Shimozuma

Publikováno v: Plasma Physics and Controlled Fusion
Citation K Tanaka et al 2020 Plasma Phys. Control. Fusion 62 024006
Tanaka, K, Nakata, M, Ohtani, Y, Tokuzawa, T, Yamada, H, Warmer, F, Nunami, M, Satake, S, Tala, T, Tsujimura, T, Takemura, Y, Kinoshita, T, Takahashi, H, Yokoyama, M, Seki, R, Igami, H, Yoshimura, Y, Kubo, S, Shimozuma, T, Akiyama, T, Yamada, I, Yasuhara, R, Funaba, H, Yoshinuma, M, Ida, K, Goto, M, Motojima, G, Shoji, M, Masuzaki, S, Michael, C A, Vacheslavov, L N, Osakabe, M, Morisaki, T & LHD experiment group 2020, ' Extended investigations of isotope effects on ECRH plasma in LHD ', Plasma Physics and Controlled Fusion, vol. 62, no. 2, 024006 . https://doi.org/10.1088/1361-6587/ab5bae

Isotope effects of ECRH plasma in LHD were investigated in detail. A clear difference of transport and turbulence characteristics in H and D plasmas was found in the core region, with normalized radius ρ < 0.8 in high collisionality regime. On the o

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f38b5cff5e7094f4deb2ae6fdc66fb09
https://hdl.handle.net/21.11116/0000-0006-9803-B21.11116/0000-0006-8F00-921.11116/0000-0006-8F02-7