Zobrazeno 1 - 10
of 14
pro vyhledávání: '"Takayuki Yokodo"'
Autor:
Kunpei Nojiri, Mizuki Sakamoto, Naomichi Ezumi, Akihiro Terakado, Takaaki Iijima, Satoshi Togo, Takayuki Yokodo, Yosuke Kinoshita, Tomohiro Mikami, Tsubasa Yoshimoto, Sotaro Yamashita, Junko Kohagura, Masayuki Yoshikawa, Yousuke Nakashima
Publikováno v:
Nuclear Materials and Energy, Vol 20, Iss , Pp - (2019)
Gas puff and pump experiments on the plasma applied in a divertor simulation were conducted in the GAMMA 10/PDX tandem mirror. Additional hydrogen gas was supplied to the plasma with and without a pump in the region of the divertor simulation. To dec
Externí odkaz:
https://doaj.org/article/53d5930a0c0a4567a2c4b6802b85bd9d
Autor:
Md. Shahinul Islam, Naomichi Ezumi, G. Lee, Yousuke Nakashima, K. Fukui, Akiyoshi Hatayama, Tsuyoshi Imai, Satoshi Togo, Kazuya Ichimura, Mizuki Sakamoto, M. M. Islam, M. Ohuchi, Takayuki Yokodo
Publikováno v:
Fusion Engineering and Design. 125:216-221
This research investigates the effect of Argon (Ar) and Neon (Ne) injection on the plasma parameters in the end-cell of GAMMA 10/PDX numerically by using a multi-fluid code. Reduction in the temperature of the electrons and ions is observed according
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8203fee11e234e0fa8e5462db818ddd0
https://doi.org/10.1016/j.fusengdes.2017.05.132
https://doi.org/10.1016/j.fusengdes.2017.05.132
Autor:
Naomichi Ezumi, Junko Kohagura, Masayuki Yoshikawa, Mizuki Sakamoto, Sotaro Yamashita, Yousuke Nakashima, Takaaki Iijima, Kunpei Nojiri, A. Terakado, Takayuki Yokodo, Satoshi Togo, Tsubasa Yoshimoto, Yosuke Kinoshita, Tomohiro Mikami
Publikováno v:
Nuclear Materials and Energy, Vol 20, Iss, Pp-(2019)
Gas puff and pump experiments on the plasma applied in a divertor simulation were conducted in the GAMMA 10/PDX tandem mirror. Additional hydrogen gas was supplied to the plasma with and without a pump in the region of the divertor simulation. To dec
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::59a55b4610e5d0541e840c8644ffaef1
https://doi.org/10.1016/j.nme.2019.100691
https://doi.org/10.1016/j.nme.2019.100691
Autor:
Kunpei Nojiri, Masayuki Yoshikawa, Md. Shahinul Islam, Kazuya Ichimura, Yousuke Nakashima, Mizuki Sakamoto, M. M. Islam, Tsubasa Yoshimoto, Takaaki Iijima, A. Terakado, Naomichi Ezumi, Akiyoshi Hatayama, Hiroto Matsuura, Toshiki Hara, Takayuki Yokodo, Sotaro Yamashita
Publikováno v:
Plasma and Fusion Research. 14:2402016-2402016
This paper investigates the impact of Krypton (Kr) seeding on plasma parameters in the D-module of GAMMA 10/PDX experimentally based on the calorimeter, Langmuir probe and high-speed camera measurements. The heat flux distribution along the V-shaped
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0cf1d9e5e2a445de920c3b02c08ae455
https://doi.org/10.1585/pfr.14.2402016
https://doi.org/10.1585/pfr.14.2402016
Autor:
Naomichi Ezumi, Hiroto Matsuura, Takayuki Yokodo, K. Tsumura, M. Sakamoto, G. Lee, M. M. Islam, Kazuya Ichimura, Md. Shahinul Islam, M. Ohuchi, K. Fukui, Tsuyoshi Kariya, R. Minami, T. Imai, Yousuke Nakashima
Publikováno v:
AIP Conference Proceedings.
In this paper, detailed results of the heat flux measurements are presented and the improvement of heat flux evaluation method is also discussed. We measured the heat flux in the case that additional heating with electron cyclotron resonance heating
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5257b9cc5368febf095420daae61f75c
https://doi.org/10.1063/1.4964205
https://doi.org/10.1063/1.4964205
Autor:
Kazuya Ichimura, Md. Shahinul Islam, Yousuke Nakashima, Naomichi Ezumi, K. Shimizu, Akiyoshi Hatayama, Mizuki Sakamoto, K. Fukui, Ryoko Tatsumi, M. M. Islam, T. Imai, M. Ohuchi, G. Lee, Takayuki Yokodo
Publikováno v:
AIP Conference Proceedings.
The effect of neutral Ar injection on the plasma parameters is investigated numerically by using a multi-fluid code in this research. Reduction of electron and ion temperature has been observed according to the increment in injected neutral Ar densit
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d3b832ec9e10a5a7c21a23c74dc0e856
https://doi.org/10.1063/1.4964223
https://doi.org/10.1063/1.4964223
Autor:
Kazuya Ichimura, K. Ohkawa, Takayuki Yokodo, Shinji Nagata, Yousuke Nakashima, M. M. Islam, M. Ohuchi, K. Fukui, K. Shimizu, Md. Shahinul Islam, M. Arai
Publikováno v:
AIP Conference Proceedings.
In this research, the effect of beam convergence with magnetic field of GAMMA 10/PDX has been investigated. The hydrogen ion beam is injected to the tungsten target under the various strength of magnetic field. The spatial distribution of emission li
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f460d13c4acdd5cf7f0983d8095b91dd
https://doi.org/10.1063/1.4964219
https://doi.org/10.1063/1.4964219
Autor:
M. Hirata, Junko Kohagura, K. Hosoi, Md. Shahinul Islam, M. M. Islam, Masayuki Yoshikawa, G. Lee, M. Ohuchi, Shinji Kobayashi, Nobuhiro Nishino, K. Shimizu, Kazuya Ichimura, M. Arai, Yousuke Nakashima, Ryuya Ikezoe, K. Fukui, Mizuki Sakamoto, Takayuki Yokodo, T. Imai, Makoto Ichimura
Publikováno v:
AIP Conference Proceedings.
Results of supersonic molecular bean injection (SMBI) with Laval nozzle has been carried out in the GAMMA 10 tandem mirror. The neutral transport during SMBI was investigated by the two-dimensional image of the light emission captured by the high-spe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::82059649b501830c4a309d32e80c26e4
https://doi.org/10.1063/1.4964174
https://doi.org/10.1063/1.4964174
Autor:
Kunpei Nojiri, Md. Shahinul Islam, A. Terakado, Yousuke Nakashima, Takayuki Yokodo, Masayuki Yoshikawa, M. M. Islam, T. Imai, K. Fukui, M. Ohuchi, K. Shimizu, Kazuya Ichimura, Mizuki Sakamoto, Naomichi Ezumi
Publikováno v:
AIP Conference Proceedings.
In this study, spectroscopic measurement at the plug/barrier-cell, near the midplane in GAMMA 10/PDX was carried out for the first time. From the comparison of the spectroscopic data measured in the end-cell and plug/barrier-cell, transport of impuri
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d72c6935c022b028e321e1f88bfb43be
https://doi.org/10.1063/1.4964192
https://doi.org/10.1063/1.4964192
Autor:
Tomohiro Mikami, Takaaki Iijima, Shinichiro Kado, Yousuke Nakashima, A. Terakado, Naomichi Ezumi, Kunpei Nojiri, Mizuki Sakamoto, Keiji Sawada, Takayuki Yokodo, Satoshi Togo
Publikováno v:
Plasma and Fusion Research. 13:3402096
Hydrogen recycling with a high-temperature W target has been studied in GAMMA 10/PDX. The V-shaped target with W plates was heated up to 573 K and then exposed to the end-loss plasma. When the target temperature was increased from room temperature to
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::99d6c8e4a46e29a8c4891e0405246cd3
https://tsukuba.repo.nii.ac.jp/records/49210
https://tsukuba.repo.nii.ac.jp/records/49210