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Journal Articles

Investigation of advanced divertor magnetic configuration for DEMO tokamak reactor

Asakura, Nobuyuki; Shinya, Kichiro*; Tobita, Kenji; Hoshino, Kazuo; Shimizu, Katsuhiro; Uto, Hiroyasu; Someya, Yoji; Nakamura, Makoto; Ono, Noriyasu*; Kobayashi, Masahiro*; et al.

Fusion Science and Technology, 63(1T), p.70 - 75, 2013/05

no abstracts in English

Journal Articles

Investigation of advanced divertor magnetic configuration for Demo tokamak reactor

Asakura, Nobuyuki; Shinya, Kichiro*; Tobita, Kenji; Hoshino, Kazuo; Shimizu, Katsuhiro; Uto, Hiroyasu; Someya, Yoji; Nakamura, Makoto; Ono, Noriyasu*; Kobayashi, Masahiro*; et al.

Fusion Science and Technology, 63(1T), p.70 - 75, 2013/05

 Times Cited Count:13 Percentile:69.84(Nuclear Science & Technology)

Design study of poloidal field coil (PFC) locations and current distribution for the advanced divertor in the Demo tokamak reactor was presented. Concept of the super-X divertor (SXD) for Demo reactor has an outer divertor leg longer than the conventional divertor, and it extends outboard to increase both the target wetted area and connection length to the outer target ($$L_{//}$$). Equilibrium calculation code, TOSCA, was developed by introducing two parameters, i.e. super-X null radius ($$R_{SX}$$) and a ratio of the poloidal flux at the super-X null to that at the separatrix ($$f_{SX}$$). Some SXD magnetic configurations with minimal number of PFCs located outside toroidal field coil (TFC) were Demonstrated. Locations of the divertor target were also investigated. It was found that the flux expansion can be increased up to 4-10 depending on the target location and $$f_{SX}$$, and that SXD has an advantage to increase $$L_{//}$$ with $$f_{SX}$$. Thus, the divertor plasma temperature is expected to decrease at the same upstream plasma density. On the other hand, large currents for the divertor PFCs were necessary. Other arrangements of PFCs such as (1) larger $$R_{SX}$$ and (2) inside TFC, can reduce the PFC currents.

Journal Articles

Investigation of the helical divertor function and the future plan of a closed divertor for efficient particle control in the LHD plasma periphery

Shoji, Mamoru*; Masuzaki, Suguru*; Kobayashi, Masahiro*; Goto, Motoshi*; Morisaki, Tomohiro*; Yamada, Hiroshi*; Komori, Akio*; Iwamae, Atsushi; Sakaue, Atsushi*; LHD Experimental Group*

Fusion Science and Technology, 58(1), p.208 - 218, 2010/07

 Times Cited Count:9 Percentile:53.03(Nuclear Science & Technology)

Journal Articles

Interaction of externally applied helical field with tokamak plasma

Tsuda, Takashi; Kobayashi, M.*; Kurita, Genichi; Takamura, Shuichi*

Contributions to Plasma Physics, 40(3-4), p.256 - 259, 2000/06

 Times Cited Count:4 Percentile:14.83(Physics, Fluids & Plasmas)

no abstracts in English

Journal Articles

Interaction of externally applied rotating helical field with tokamak plasma

Kobayashi, M.*; Tsuda, Takashi; Tashiro, Kenji*; Kojima, H.*; Zhai, K.*; Takamura, Shuichi*

Nuclear Fusion, 40(2), p.181 - 193, 2000/02

 Times Cited Count:27 Percentile:63.23(Physics, Fluids & Plasmas)

no abstracts in English

JAEA Reports

None

Ouchi, Yoshifusa; ; *; ; *; *; *; *

PNC TN841 82-61, 78 Pages, 1982/10

PNC-TN841-82-61.pdf:1.65MB

no abstracts in English

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