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Journal Articles

Method for detection of separatrix surface using differential double probe

Amemiya, Hiroshi*; Uehara, Kazuya

Japanese Journal of Applied Physics, Part 1, 45(1A), p.247 - 249, 2006/01

 Times Cited Count:4 Percentile:16.27(Physics, Applied)

A method for detecting the separatrix surface in the edge plasma in Tokamak is presented. Two sets of double probes whose front surfaces are shifted by a small distance are mounted and the difference of the currents is measured using a differential amplifier. When the separatrix surface reaches the probes, a current increment appears in the differential amplifier, giving a signal of the arrival of the separatrix. Procedures of obtaining plasma parameters including the ion temperature are described.

Journal Articles

Stability of ideal MHD ballooning modes and its stabilization by toroidal rotation shear near separatrix

Furukawa, Masaru; Tokuda, Shinji; Wakatani, Masahiro*

Plasma Physics and Controlled Fusion, 46(2), p.409 - 421, 2004/02

 Times Cited Count:7 Percentile:21.86(Physics, Fluids & Plasmas)

In the H-mode (high-confinement mode) pedestal region of a static or a toroidally rotating D-shaped tokamak plasma, the separatrix or the X-point affects the high-n ballooning stability (n: toroidal mode number) only in a thin layer in the pedestal region. Therefore, D-shaping effectively stabilizes the ballooning modes even for a toroidally rotating plasma with a separatrix.

JAEA Reports

Structural design of shield-integrated thin-wall vacuum vessel and manufacturing qualification tests for International Thermonuclear Experimental Reactor(ITER)

Shimizu, Katsusuke*; ; Koizumi, Koichi; ; Nishio, Satoshi; Sasaki, Takashi*; Tada, Eisuke

JAERI-M 92-135, 139 Pages, 1992/09

JAERI-M-92-135.pdf:3.74MB

no abstracts in English

Journal Articles

Separatrix sweeping by in-vessel coils on a fusion reactor

Nishio, Satoshi; Araki, Masanori; Shinya, K.*; Shimizu, Katsusuke*; Kuroda, Toshimasa*; Sugihara, Masayoshi; Shimomura, Yasuo

Fusion Engineering and Design, 19, p.203 - 211, 1992/00

 Times Cited Count:2 Percentile:26.93(Nuclear Science & Technology)

no abstracts in English

Journal Articles

Ergodic behavior of magnetic field lines in a poloidal divertor tokamak

Yoshida, H.; ;

Japanese Journal of Applied Physics, 21(7), p.1068 - 1074, 1982/00

 Times Cited Count:1 Percentile:12.22(Physics, Applied)

no abstracts in English

JAEA Reports

Magnetic Structure of Poloidal Divertor Configuration with Non-Axisymmetric Perturbed Field in JT-60

Yoshida, H.; ; ; Sengoku, Seio; ; ; ;

JAERI-M 9789, 28 Pages, 1981/11

JAERI-M-9789.pdf:0.64MB

no abstracts in English

JAEA Reports

Loss Mechanism of the Superthermal Electrons Across the Separatrix into the Scrape-off Laver in DIVA

; Sengoku, Seio; ; ; Maeda, Hikosuke; ; ; ;

JAERI-M 7309, 22 Pages, 1977/10

JAERI-M-7309.pdf:0.76MB

no abstracts in English

Journal Articles

Plasma confinement in toroidal ringless quadrupole

;

Phys.Lett.,A, 42(1), p.81 - 82, 1972/01

no abstracts in English

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