Zobrazeno 1 - 10
of 3 670
pro vyhledávání: '"Y., Nagashima"'
Autor:
T. Onchi, H. Idei, K. Hanada, O. Watanabe, R. Miyata, Y. Zhang, Y. Koide, Y. Otsuka, T. Yamaguchi, A. Higashijima, T. Nagata, I. Sekiya, S. Shimabukuro, I. Niiya, K. Kono, F. Zennifa, K. Nakamura, R. Ikezoe, M. Hasegawa, K. Kuroda, Y. Nagashima, T. Ido, T. Kariya, A. Ejiri, S. Murakami, A. Fukuyama, Y. Kosuga
Publikováno v:
Nuclear Fusion, Vol 64, Iss 10, p 106020 (2024)
The plasma current start-up experiment is conducted through electron cyclotron (EC) heating in the QUEST spherical tokamak. During the EC heating, the application of a toroidal electric field in the opposite direction to the plasma current effectivel
Externí odkaz:
https://doaj.org/article/258d9e9d10284ffe9883674e852468ae
Autor:
N. Yoneda, T. Shikama, F. Scotti, K. Hanada, H. Iguchi, H. Idei, T. Onchi, A. Ejiri, T. Ido, K. Kono, Y. Peng, Y. Osawa, G. Yatomi, A. Kidani, M. Kudo, R. Hiraka, K. Takeda, R.E. Bell, A. Maan, D.P. Boyle, R. Majeski, V.A. Soukhanovskii, M. Groth, A.G. McLean, R.S. Wilcox, C. Lasnier, K. Nakamura, Y. Nagashima, R. Ikezoe, M. Hasegawa, K. Kuroda, A. Higashijima, T. Nagata, S. Shimabukuro, I. Niiya, I. Sekiya, M. Hasuo
Publikováno v:
Nuclear Fusion, Vol 63, Iss 9, p 096004 (2023)
Spatially resolved rotational temperature of ground state hydrogen molecules desorbed from plasma-facing surface was measured in QUEST, LTX-β, and DIII-D tokamaks, and the increases of the rotational temperature with the surface temperature and due
Externí odkaz:
https://doaj.org/article/bf97637ea3bb4163ad7e7fa577e2f358
Autor:
K. Hanada, N. Yoshida, I. Takagi, T. Hirata, A. Hatayama, K. Okamoto, Y. Oya, T. Shikama, Z. Wang, H. Long, C. Huang, M. Oya, H. Idei, Y. Nagashima, T. Onchi, M. Hasegawa, K. Nakamura, H. Zushi, K. Kuroda, S. Kawasaki, A. Higashijima, T. Nagata, S. Shimabukuro, Y. Takase, S. Murakami, X. Gao, H. Liu, J. Qian, R. Raman, M. Ono
Publikováno v:
Nuclear Materials and Energy, Vol 19, Iss , Pp 544-549 (2019)
This research investigated fuel particle balance during long duration discharge in an all-metal plasma facing wall (PFW) through intensive QUEST execution. A simple wall model including the plasma-induced deposition layer that creates hydrogen (H) ba
Externí odkaz:
https://doaj.org/article/56927c3303804e94a4424d1658ba3b18
Autor:
K. Hanada, N. Yoshida, M. Hasegawa, M. Oya, Y. Oya, I. Takagi, A. Hatayama, T. Shikama, H. Idei, Y. Nagashima, R. Ikezoe, T. Onchi, K. Kuroda, S. Kawasaki, A. Higashijima, T. Nagata, S. Shimabukuro, K. Nakamura, S. Murakami, Y. Takase, X. Gao, H. Liu, J. Qian
Publikováno v:
Nuclear Materials and Energy, Vol 27, Iss , Pp 101013- (2021)
QUEST (Q-shu university experiment with steady state spherical tokamak) is a midsize spherical tokamak capable of steady-state operation, comprising all-metal plasma-facing walls and a hot wall (HW) to address issues pertaining to fuel particle balan
Externí odkaz:
https://doaj.org/article/795e274f8d144051ba4fe3714f849314
Autor:
A. Kuzmin, M. Kobayashi, K. Hanada, H. Idei, T. Onchi, S. Mori, N. Yoneda, T. Shikama, M. Hasuo, T. Ido, Y. Nagashima, R. Ikezoe, M. Hasegawa, K. Kuroda, K. Kono, S. Matsuo, T. Nagata, S. Shimabukuro, A. Higashijima, I. Niiya, H. Zushi
Publikováno v:
Nuclear Materials and Energy, Vol 26, Iss , Pp 100872- (2021)
To study radial distribution of hydrogen flux in peripheral plasma in long duration tokamak discharges, permeation and Langmuir reciprocate probes are used. The atomic hydrogen flux to the walls at several radial positions is deduced from the permeat
Externí odkaz:
https://doaj.org/article/c4734445d0ec4ba7b719f26dd6163de7
Autor:
N. Yoneda, T. Shikama, K. Hanada, S. Mori, T. Onchi, K. Kuroda, M. Hasuo, A. Ejiri, K. Matsuzaki, Y. Osawa, Y. Peng, Y. Kawamata, S. Sakamoto, H. Idei, T. Ido, K. Nakamura, Y. Nagashima, R. Ikezoe, M. Hasegawa, A. Higashijima, T. Nagata, S. Shimabukuro
Publikováno v:
Nuclear Materials and Energy, Vol 26, Iss , Pp 100905- (2021)
A spectroscopic system with multiple viewing chords was developed for QUEST (Q-shu University Experiment with Steady-State Spherical Tokamak) to measure the spatial distribution of ion toroidal velocities in discharges sustained by electron cyclotron
Externí odkaz:
https://doaj.org/article/059c78f1eef64056bb481156a4a0bfdd
Publikováno v:
Brain and Spine, Vol 1, Iss , Pp 100425- (2021)
Externí odkaz:
https://doaj.org/article/531a187bb660464889c10a7f0de82dc5
Autor:
T. Toshio, S. Morita, M. Toguchi, Y. Ogawa, K. Yoshida, J. Iizuka, T. Kondo, H. Fukuda, H. Ishihara, Y. Nagashima, K. Tanabe
Publikováno v:
European Urology Open Science, Vol 19, Iss , Pp e749- (2020)
Externí odkaz:
https://doaj.org/article/b35f565c6d2240c78486f59a70360791
Autor:
A. Kuzmin, H. Zushi, I. Takagi, S.K. Sharma, M. Kobayashi, Y. Hirooka, T. Onchi, K. Hanada, N. Yoshida, K. Nakamura, A. Fujisawa, H. Idei, Y. Nagashima, M. Hasegawa, T. Mutoh, K. Mishra, H. Ohwada
Publikováno v:
Nuclear Materials and Energy, Vol 12, Iss , Pp 627-632 (2017)
In order to understand the atomic hydrogen distribution in different kinds of plasma and its influence on the recycling, two kinds of plasmas were used: non-confined annular electron cyclotron resonance (ECR) and confined long duration plasmas. The p
Externí odkaz:
https://doaj.org/article/8a60ea8c93594e53960291f15432832a
Publikováno v:
Reviews of Modern Plasma Physics. 7
This memorial note for Professor Sanae-I Itoh presents her specific achievements in physics research alongside her wider record of accomplishment in the field of magnetically confined plasmas. The topics include bifurcation phenomena (e.g., H-mode an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c9b8d51a7fbdea20834c7f04e33edef5
https://doi.org/10.1007/s41614-023-00123-6
https://doi.org/10.1007/s41614-023-00123-6