Observation of a complex multistage transition in the JT-60U -mode edge

Kamiya, Kensaku; Ida, Katsumi*; Sakamoto, Yoshiteru; Matsunaga, Go; Kojima, Atsushi; Urano, Hajime; Oyama, Naoyuki; Koide, Yoshihiko; Kamada, Yutaka

Transition between intermediate -phase and complete -phase is observed in JT-60U ELM-free -mode. The intermediate -phase is characterized by the large ion temperature gradients without significant poloidal rotation of impurity species (and with moderate magnitude of radial electric field), while the complete -phase is characterized by the large radial electric field where the both density and temperature (and hence, pressure) gradients could increase. This observation shows there are two discrete phases with different magnitude of radial electric field in the ELM-free -mode.

Language	:	English
Journal	:	Physical Review Letters
Volume	:	105
Number	:	4
Pages	:	p.045004_1 - 045004_4
Publication Year/Month	:	2010/07
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Paper URL	:	https://doi.org/10.1103/PhysRevLett.105.045004
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Keywords	:	no keyword
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Article of JAEA R&D Review	:	Observation of Multistage Transition in Radial Electric Field; A New Discovery Unexpected in the Case of the Standard Model[/]
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Registration No. : AA20090256
JAEA Abstracts No. :
Paper Submission No. : 9283

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