Zobrazeno 1 - 10
of 194
pro vyhledávání: '"Teruji Cho"'
Autor:
Shinji Kobayashi, H. Kawano, Tohru Mizuuchi, Katsumi Kondo, Mamoru Shoji, Yousuke Nakashima, Hiroyuki Okada, Fumimichi Sano, Yuta Higashizono, Teruji Cho, Kazunobu Nagasaki, H. Yabutani
Publikováno v:
Contributions to Plasma Physics. 48:141-146
Transport of neutral particles in a non-axisymmetric plasma device is described based on a Monte-Carlo simulation and of Dα line-emission measurements. DEGAS three-dimensional (3-D) Monte-Carlo code for neutral transport simulation has been applied
Autor:
Teruji Cho, M. K. Islam, Yuusuke Kubota, H. Kawano, Mamoru Shoji, Yuta Higashizono, M. Yoshikawa, Shiro Kobayashi, Nobuhiro Nishino, Yoshiyuki Mishima, Yousuke Nakashima, D. Mimura
Publikováno v:
Journal of Nuclear Materials. :616-621
Detailed results of edge plasma and neutral particle behavior are described in the gas puff imaging experiments performed in the GAMMA 10 tandem mirror for the first time. Visible imaging measurement by using a high-speed camera (Ultima-SE, Photron I
Autor:
Junko Kohagura, T. Numakura, N. Morimoto, Y. Miyake, S. Miyoshi, S. Tokioka, K. Shimizu, Teruji Cho, Takashi Kondoh, M. Ito, Mafumi Hirata
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 573:34-37
For the purpose of clarifying the spatial structures of plasma potentials and ion-current signals for plasma confinement studies in open-field plasma devices, multigridded electrostatic ion-energy spectrometers (IES) and compact-sized electrostatic i
Autor:
K. Shimizu, Y. Tomii, Junko Kohagura, Tsuyoshi Imai, Mafumi Hirata, T. Numakura, Y. Takahashi, N. Morimoto, S. Kiminami, Teruji Cho, S. Miyoshi
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 573:53-56
Tomographic reconstructions of X-ray emission from hot electrons having a temperature of several tens of keV and cold electrons having a temperature ranging below 100 eV have been carried out by the use of the novel position-sensitive X-ray diagnosti
Autor:
S. Miyoshi, N. Morimoto, T. Numakura, Yoshiaki Miyata, M. Ito, Teruji Cho, R. Minami, K. Hirai, Kazuo Ogura, S. Namiki, T. Kariya, Tsuyoshi Imai, T. Ikuno, Mafumi Hirata, T. Yamagishi, K. Shimizu, S. Kiminami, Y. Tomii, Junko Kohagura
Publikováno v:
Fusion Science and Technology. 51:204-207
Generalized scaling laws for the formation of plasma confining potentials are investigated to find the physics essentials common to representative tandem-mirror operational modes in GAMMA 10. These modes are characterized in terms of (i) a high-poten
Autor:
Masayuki Yoshikawa, Akiyosi Itakura, K. Matama, Teruji Cho, Takako Kato, Yuusuke Kubota, Takayuki Kobayashi, Yousuke Nakashima, Izumi Murakami
Publikováno v:
Fusion Science and Technology. 51:75-78
Impurity ion radiation intensity has been studied in the GAMMA 10 plasma using both a collisional-radiative model (CR-model) and spectroscopic measurements. We have constructed absolutely calibrated soft X-ray, vacuum ultraviolet, ultraviolet and vis
Autor:
Motoo Ishikawa, Teruji Cho, Y. Kurumatani, M. Hirata, Yuta Higashizono, Yasuyoshi Yasaka, T. Yamamoto, Y. Tomita, Hiromasa Takeno, Yousuke Nakashima
Publikováno v:
Fusion Science and Technology. 51:171-176
A direct energy converter (DEC) designed for thermal ions escaping from a fusion reactor consists of a cusp magnetic field and one or two stage decelerating electrodes. The electrons are deflected ...
Autor:
Yuusuke Yamaguchi, M. Ishikawa, I. Kozawa, Shinichi Moriyama, M. Katano, Makoto Ichimura, Tatsuya Suzuki, K. Nemoto, S. Kakimoto, Teruji Cho, H. Muro, Hiroyuki Higaki, Tomo-Hiko Watanabe
Publikováno v:
Fusion Science and Technology. 51:150-153
In magnetically confined plasmas, fluctuations in the ion cyclotron range of frequency (ICRF) will be driven by the presence of non-thermal ion energy distributions. In a typical discharge in the GAMMA 10 tandem mirror, Alfven-ion-cyclotron (AIC) mod
Autor:
Yuusuke Yamaguchi, Yoshiaki Miyata, Tsuyoshi Imai, Khairul Islam, Teruo Saito, T. Numakura, K. Shimizu, Maiko Yoshida, Yousuke Nakashima, W. Horton, V. P. Pastukhov, Yuusuke Kubota, T. Kariya, Keishi Sakamoto, Osamu Watanabe, M. Itou, Isao Katanuma, T. Ikuno, Makoto Ichimura, Hiroyuki Higaki, Junko Kohagura, H. Saimaru, Yasuyoshi Yasaka, Nobuhiro Nishino, Kameo Ishii, T. Kobayashi, Atsushi Kojima, S. Kiminami, Akiyosi Itakura, Yuta Higashizono, Yoshinori Tatematsu, S. Miyoshi, Mafumi Hirata, Hitoshi Hojo, Atsushi Mase, M. Yoshikawa, Kazuo Ogura, R. Minami, Teruji Cho
Publikováno v:
Fusion Science and Technology. 51:11-16
(1) Four-time progress in ion-confining potentials Φ c to 3.0 kV in comparison to Φ c attained 1992-2002 is achieved in the hot-ion mode (T i =several keV). A scaling of Φ c , which favorably increases with plug electron-cyclotron heating (ECH) po
Publikováno v:
Fusion Science and Technology. 51:122-125
The magnetic divertor in the GAMMA 10 tandem mirror is presented. Here non-axisymmetric base-ball coils and race-track coils in anchor region are replaced by the axisymmetric divertor coils. The analysis of the flute interchange mode stability and pl