Zobrazeno 1 - 10
of 10
pro vyhledávání: '"Akiyoshi ITAKURA"'
Autor:
Isao Katanuma, Akiyoshi Itakura, Hitoshi Hojo, Mafumi Hirata, Yoshinori Tatematsu, Junko Kohagura, Masayuki Yoshikawa, Kameo Ishii, Y. Ishimoto, Teruji Cho, M. K. Islam, Yousuke Nakashima, Teruo Saito, Hiroyuki Higaki, Makoto Ichimura, Kiyoshi Yatsu
Publikováno v:
Fusion Science and Technology. 43:10-15
After the attainment of the density doubling due to the potential confinement in 1998, GAMMA 10 experiments have been directed to realization of a high density plasma with potential confinement and also to study dependencies between plasma parameters
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2802502a0355ed63e2a2c83684bdf1aa
https://doi.org/10.13182/fst03-a11963556
https://doi.org/10.13182/fst03-a11963556
Autor:
Teruji Cho, Teruo Saito, Isao Katanuma, Hitoshi Hojo, Junko Kohagura, Masayuki Yoshikawa, Hiroyuki Higaki, Kameo Ishii, Kiyoshi Yatsu, Md. Khairul Islam, Yoshinori Tatematsu, Yousuke Nakashima, Mafumi Hirata, Akiyoshi Itakura, Makoto Ichimura
Publikováno v:
Journal of Advanced Science. 14:139-142
The plasma confinement in the GAMMA 10 tandem mirror is studied. The mirror confinement is much improved owing to the potential confinement. The high density plasma confinement was recently attained. Relations between confinement time and confining p
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b83fb3bb581433e41adc830ddd61788b
https://doi.org/10.2978/jsas.14.139
https://doi.org/10.2978/jsas.14.139
Autor:
Mafumi Hirata, Teruji Cho, Akiyoshi Itakura, Kameo Ishii, Teruo Tamano, Yousuke Nakashima, Yoshinori Tatematsu, Isao Katanuma, Hitoshi Hojo, Makoto Ichimura, Satoshi Tanaka, Junko Kohagura, Teruo Saito, Kiyoshi Yatsu, Masayuki Yoshikawa
Publikováno v:
Fusion Technology. 39:3-9
After the last Novosibirsk Conference (1998), GAMMA 10 experiments have advanced in long sustainment of confining potential and higher density experiments. An experiment which attained doubling of ...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a14c2654ec337d93d8bc9b417beac6a1
https://doi.org/10.13182/fst01-a11963408
https://doi.org/10.13182/fst01-a11963408
Autor:
Junko Kohagura, Hitoshi Hojo, Leonid G. Bruskin, Isao Katanuma, Makoto Ichimura, Teruji Cho, Yasuhito Kiwamoto, T. Tokuzawa, Yoshinori Tatematsu, Shigeyuki Kubota, Teruo Saito, Akiyoshi Itakura, Kiyoshi Yatsu, Minoru Hamada, Atsushi Mase, Yousuke Nakashima, Mafumi Hirata, Masayuki Yoshikawa, Khairul Islam, Yoshiteru Sakamoto, Teruo Tamano, Kameo Ishii
Publikováno v:
Fusion Technology. 35:52-59
Potential confinement of an ICRF-heated high-ion temperature plasma in GAMMA 10 is experimentally studied. The potential confinement was shown from data of one-end plugging and both-end plugging. The waveform of end loss current and an analysis of en
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6673855fe971267f60aaaf0ca724d733
https://doi.org/10.13182/fst99-a11963826
https://doi.org/10.13182/fst99-a11963826
Autor:
Teruji CHO, Maiko YOSHIDA, Hiroyuki HIGAKI, Mafumi HIRATA, Hitoshi HOJO, Makoto ICHIMURA, Kameo ISHII, Md. Khairul ISLAM, Akiyoshi ITAKURA, Isao KATANUMA, Junko KOHAGURA, Yousuke NAKASHIMA, Tomoharu NUMAKURA, Teruo SAITO, Yoshinori TATEMATSU, Masayuki YOSHIKAWA, Yuichiro TAKEMURA, Vladimir P. PASTUKHOV, Syoichi MIYOSHI, null GAMMA 10 GROUP
Publikováno v:
Journal of Plasma and Fusion Research. 80:81-82
Remarkable effects of radially produced shear of electric fields dEr⁄dr on both turbulent fluctuations and drift waves are experimentally demonstrated with improvement in plasma confinement for the first time in the tandem mirror GAMMA 10. These el
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d5f9d6ee667c7400d806ecfe0fff0428
https://doi.org/10.1585/jspf.80.81
https://doi.org/10.1585/jspf.80.81
Autor:
Yousuke Nakashima, Akiyoshi Itakura, Isao Katanuma, Hitoshi Hojo, Junko Kohagura, Khairul Islam, Noboru Yokoyama, Makoto Ichimura, Mafumi Hirata, Hiroyuki Higaki, Masayuki Yoshikawa, Tuyosi Imai, Y. Kojima, V. P. Pastukhov, T. Numakura, Suguru Tokioka, Kameo Ishii, M. Yoshida, Yamato Tomii, Yoshinori Tatematsu, Teruo Saito, Teruji Cho, S. Miyoshi
Publikováno v:
Physical review letters. 94(8):085002
application/pdf
Vortexlike turbulent structures in hot-ion mode plasmas with several keV are observed in the case with a radially produced weak shear of electric fields Er. However, a strong Er shear formation due to a high ion-confining potenti
Vortexlike turbulent structures in hot-ion mode plasmas with several keV are observed in the case with a radially produced weak shear of electric fields Er. However, a strong Er shear formation due to a high ion-confining potenti
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::971dce162c1bd6901c340d536f594b21
https://tsukuba.repo.nii.ac.jp/records/18513
https://tsukuba.repo.nii.ac.jp/records/18513
Publikováno v:
Journal of the Physical Society of Japan. 28:1565-1570
The width of electron plasma oscillations is measured with a spectrum analyzer. An autocorrelation function of the oscillation is also measured with a standing wave detector and delay lines. The measured oscillations are set up as a standing wave bet
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ce1d7c4080cb6ae9b7ae5f3e98984c5f
https://doi.org/10.1143/jpsj.28.1565
https://doi.org/10.1143/jpsj.28.1565
Publikováno v:
Kakuyūgō kenkyū. 29:14-29
Plasma production was studied using a 1 KW 130 MNz electromagnetic wave, a coupling coil placed in a metal vacuum-chamber, and a uniform magnetic field. Plasma densities higher than 1012 cm-3 were obtained in helium for gas pressures above about 10-3
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::993dd2e83e76139c7143e928e9b87768
https://doi.org/10.1585/jspf1958.29.14
https://doi.org/10.1585/jspf1958.29.14
Autor:
Takaya Kawabe, Kiyoshi Yatsu, Shoji Kojima, Akiyoshi Itakura, Hiroshi Ishizuka, Shigeo Hagiwara, Kameo Ishii, Syoichi Miyoshi
Publikováno v:
Journal of the Physical Society of Japan. 43:357-358
Thermalization of energetic (0.7∼3 keV) ion beam in a turbulent plasma was studied experimentally. A helium ion beam was injected into the fluctuating plasma along the longitudinal magnetic field, and analysed by an electrostatic energy analyser co
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::44fef7b6a68a675c412d29fdef6e6f64
https://doi.org/10.1143/jpsj.43.357
https://doi.org/10.1143/jpsj.43.357
Publikováno v:
Journal of the Physical Society of Japan. 28:270-270
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3ec50172f46439b21c6a54bf1dbdb4f6
https://doi.org/10.1143/jpsj.28.270
https://doi.org/10.1143/jpsj.28.270