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Journal Articles

Feasibility of electron density measurement using relativistic downshift frequency effect of electron cyclotron emission in tokamak plasmas

Sato, Masayasu; Isayama, Akihiko; Iwama, Naofumi*; Kawahata, Kazuo*

Japanese Journal of Applied Physics, Part 2, 44(21), p.L672 - L675, 2005/05

 Times Cited Count:1 Percentile:4.7(Physics, Applied)

no abstracts in English

Journal Articles

Relativistic downshift frequency effects on ECE measurements of electron temperature and density in torus plasmas

Sato, Masayasu; Isayama, Akihiko; Inagaki, Shigeru*; Nagayama, Yoshio*; Kawahata, Kazuo*; Iwama, Naofumi*

Europhysics Conference Abstracts (CD-ROM), 29C, 4 Pages, 2005/00

no abstracts in English

Journal Articles

Relativistic downshift frequency effects on electron cyclotron emission measurement; Measurements of electron density in tokamak and electron temperature in LHD

Sato, Masayasu; Isayama, Akihiko; Inagaki, Shigeru*; Nagayama, Yoshio*; Kawahata, Kazuo*; Iwama, Naofumi*

Proceedings of 13th Joint Workshop on Electron Cyclotron Emission and Electron Cyclotron Resonance Heating, p.89 - 94, 2005/00

no abstracts in English

Journal Articles

Temporal evolution of temperature and density profiles of a laser compressed core

Ochi, Yoshihiro; Golovkin, I.*; Mancini, R.*; Uschmann, I.*; Sunahara, Atsushi*; Nishimura, Hiroaki*; Fujita, Kazuhisa*; Louis, S.*; Nakai, Mitsuo*; Shiraga, Hiroyuki*; et al.

Review of Scientific Instruments, 74(3), p.1683 - 1687, 2003/03

 Times Cited Count:10 Percentile:49.39(Instruments & Instrumentation)

no abstracts in English

Journal Articles

Application of CVD diamond window in infrared laser diagnostics for fusion plasmas

Kawano, Yasunori; Chiba, Shinichi; Inoue, Akira*

Proceedings of 30th EPS Conference on Controlled Fusion and Plasma Physics (CD-ROM), 4 Pages, 2003/00

It has been successful to apply CVD diamond plate as the vacuum window for infrared CO$$_{2}$$ laser interferometry and polarimetry for electron density measurement in the JT-60U tokamak. In comparison with using the conventional zinc-selenide windows, the Faraday rotation component at diamond windows was small as negligible. This resulted in the improvement of the Faraday rotation measurement for a tokamak plasma by polarimetry.

Journal Articles

Diagnostics for fusion plasma control in JT-60U

Kawano, Yasunori; JT-60 Team

Proceedings of 30th EPS Conference on Controlled Fusion and Plasma Physics (CD-ROM), 4 Pages, 2003/00

Diagnostics play essential roles both in understanding of the plasma physics and in control of the plasma itself. JT-60U has plenty of developments and thus experiences in concepts of the real-time feedback control. The parameters concerned are averaged electron density, neutron emission rate, plasma stored energy, central electron temperature, temperature gradient, temperature fluctuations, current density profile, plasma radiation, outer gap distance, neutral gas pressure, etc., and those combinations. In JT-60U, production of high-performance fusion plasmas and their sustainment owed to such the real-time feedback control. In this paper, the overview of diagnostics equipped for the real-time feedback control in JT-60U is presented.

Journal Articles

The Resonance raman effect of UO$$_{2}$$L$$_{2}$$ (L=NO$$_{3}$$, CH$$_{3}$$COO or Cl) type uranyl compounds in dimethyl sulfoxide

Soga, Takeshi

Journal of Nuclear Science and Technology, 39(Suppl.3), p.433 - 436, 2002/11

no abstracts in English

JAEA Reports

Development of control and data processing system for CO$$_{2}$$ laser interferometer

Chiba, Shinichi; Kawano, Yasunori; Tsuchiya, Katsuhiko; Inoue, Akira*

JAERI-Research 2001-050, 59 Pages, 2001/11

JAERI-Research-2001-050.pdf:15.28MB

no abstracts in English

JAEA Reports

A Study on rare gas-oxygen reactions excited by low temperature plasma

Ogawa, Hiroaki; Kiuchi, Kiyoshi; Saburi, Tei; Fukaya, Kiyoshi

JAERI-Research 2001-023, 21 Pages, 2001/03

JAERI-Research-2001-023.pdf:1.98MB

no abstracts in English

Journal Articles

Compact toroid injection as fueling in the JFT-2M tokamak

Ogawa, Toshihide; Ogawa, Hiroaki; Miura, Yukitoshi; Niimi, Hironobu*; Kimura, Haruyuki; Kashiwa, Yoshitoshi; Shibata, Takatoshi; Yamamoto, Masahiro; Fukumoto, Naoyuki*; Nagata, Masayoshi*; et al.

Journal of Nuclear Materials, 290-293, p.454 - 458, 2001/03

 Times Cited Count:7 Percentile:48.68(Materials Science, Multidisciplinary)

no abstracts in English

Journal Articles

Infrated laser polarimetry for electron density pleasurement in tokamak plasmas

Kawano, Yasunori; Chiba, Shinichi; Inoue, Akira*

Review of Scientific Instruments, 72(1), p.1068 - 1072, 2001/01

 Times Cited Count:35 Percentile:82.21(Instruments & Instrumentation)

no abstracts in English

Journal Articles

Polarimetry on JT-60U

Kawano, Yasunori

Purazuma, Kaku Yugo Gakkai-Shi, 76(9), p.855 - 859, 2000/09

no abstracts in English

Journal Articles

Electron density measurement for steady state plasmas

Kawano, Yasunori; Chiba, Shinichi; Inoue, Akira*

Journal of Plasma and Fusion Research SERIES, Vol.3, p.397 - 401, 2000/00

no abstracts in English

Journal Articles

Control of fusion power in a steady-state tokamak reactor

Kurihara, Ryoichi; Nishio, Satoshi; Ueda, Shuzo; Polevoi, A. R.; Aoki, Isao; Ajima, Toshio*; Okada, Hidetoshi*; Hasegawa, Mitsuru*; Ushigusa, Kenkichi

Journal of Plasma and Fusion Research SERIES, Vol.3, p.553 - 557, 2000/00

no abstracts in English

Journal Articles

Compact toroid injection experiment in JFT-2M

Ogawa, Toshihide; Fukumoto, Naoyuki*; Nagata, Masayoshi*; Ogawa, Hiroaki; Maeno, Masaki; Hasegawa, Koichi; Shibata, Takatoshi; Uyama, Tadao*; Miyazawa, Junichi*; Kasai, Satoshi; et al.

Nuclear Fusion, 39(11Y), p.1911 - 1915, 1999/11

 Times Cited Count:32 Percentile:69.23(Physics, Fluids & Plasmas)

no abstracts in English

Journal Articles

First measurement of tangential Faraday rotation of CO$$_{2}$$ laser wave in a tokamak plasma

Kawano, Yasunori; Chiba, Shinichi; Shirai, Hiroshi; *; Nagashima, Akira

Review of Scientific Instruments, 70(2), p.1430 - 1434, 1999/02

 Times Cited Count:11 Percentile:61.16(Instruments & Instrumentation)

no abstracts in English

JAEA Reports

Technical development and operation of TV Thomson scattering system on JFT-2M tokamak

; Yamauchi, Toshihiko; *; *; Yoshida, Hidetoshi; Kozawa, Teruo; *; *; D.Dimock*; B.LeBlanc*; et al.

JAERI-Tech 98-048, 49 Pages, 1998/10

JAERI-Tech-98-048.pdf:2.16MB

no abstracts in English

Journal Articles

Hollow density profile on electron cyclotron resonance heating JFT-2M plasma

Yamauchi, Toshihiko; Hoshino, Katsumichi; Kawashima, Hisato; Ogawa, Toshihide; Kawakami, Tomohide; ; *

Japanese Journal of Applied Physics, Part 1, 37(10), p.5735 - 5741, 1998/10

 Times Cited Count:3 Percentile:18.91(Physics, Applied)

no abstracts in English

Journal Articles

Two-color polarimeter for electron density measurement on large tokamaks

Kawano, Yasunori; Nagashima, Akira

Review of Scientific Instruments, 68(11), p.4035 - 4037, 1997/11

 Times Cited Count:10 Percentile:62(Instruments & Instrumentation)

no abstracts in English

Journal Articles

Study of carbon impurity generation by chemical sputtering in JT-60U

Higashijima, Satoru; Kubo, Hirotaka; Sugie, Tatsuo; Shimizu, Katsuhiro; Asakura, Nobuyuki; Itami, Kiyoshi; Hosogane, Nobuyuki; Sakasai, Akira; Konoshima, Shigeru; Sakurai, Shinji; et al.

Journal of Nuclear Materials, 241-243, p.574 - 578, 1997/02

 Times Cited Count:10 Percentile:63.12(Materials Science, Multidisciplinary)

no abstracts in English

40 (Records 1-20 displayed on this page)