The Roles of plasma rotation and toroidal field ripple on the H-mode pedestal structure in JT-60U

Urano, Hajime; Kamiya, Kensaku; Koide, Yoshihiko; Takizuka, Tomonori; Oyama, Naoyuki; Kamada, Yutaka; JT-60 Team

The characteristics of the H-mode pedestal structure were investigated by conducting the power scans for a variation of the toroidal momentum sources at different toroidal field ripple in JT-60U. It was found that the pedestal pressure is increased by reduced loss power of fast ions, independently of toroidal rotation. However, the energy confinement is improved with the CO-directed toroidal momentum source at H-mode plasmas with small ripple loss.

Language	:	English
Journal	:	Plasma Physics and Controlled Fusion
Volume	:	48
Number	:	5A
Pages	:	p.A193 - A199
Publication Year/Month	:	2006/05
Meeting title	:	10th IAEA Technical Meeting on H-mode Physics and Transport Barriers
Held date	:	2005/09
Location (city)	:	St. Petersburg
Location (country)	:	Russia
Patent information	:
PDF	:
Paper URL	:	https://doi.org/10.1088/0741-3335/48/5A/S18
DOI for research data	:
Keywords	:	Rotation; Toroidal Field Ripple; H-mode; Pedestal; JT-60U; Ripple Loss; Fast Ion
Research Facility	:	JT-60(臨界プラズマ試験装置)
Press Release	:
Article of JAEA R&D Review	:
Cooperating Institute	:

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Registration No. : B20050387
JAEA Abstracts No. : 34000827
Paper Submission No. : 945

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