Slow Transition of Energy Transport in High-Temperature Plasmas | Zendy

K. Ida | Zendy; S. Inagaki | Zendy; R. Sakamoto | Zendy; K. Tanaka | Zendy; H. Funaba | Zendy; Y. Takeiri | Zendy; K. Ikeda | Zendy; C. Michael | Zendy; T. Tokuzawa | Zendy; H. Yamada | Zendy; Y. Nagayama | Zendy; K. Itoh | Zendy; O. Kaneko | Zendy; A. Komori | Zendy; O. Motojima | Zendy

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Slow Transition of Energy Transport in High-Temperature Plasmas

Author(s) -

K. Ida,

S. Inagaki,

R. Sakamoto,

K. Tanaka,

H. Funaba,

Y. Takeiri,

K. Ikeda,

C. Michael,

T. Tokuzawa,

H. Yamada,

Y. Nagayama,

K. Itoh,

O. Kaneko,

A. Komori,

O. Motojima

Publication year - 2006

Publication title -

physical review letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 3.688

H-Index - 673

eISSN - 1079-7114

pISSN - 0031-9007

DOI - 10.1103/physrevlett.96.125006

Subject(s) - plasma , materials science , atomic physics , high energy , physics , condensed matter physics , nuclear physics

A new slow transition process for energy transport in magnetically confined plasmas is reported. The slow transition is characterized by the change between two metastable transport conditions characterized by a weak and a strong electron temperature (T_e) dependence of normalized heat flux. These two branches are found to merge at the critical T_e gradient. In metastable transport, the derivative of normalized heat flux to the T_e gradient, [partial-derivative](Q_e/n_e)/[partial-derivative](-[del]T_e), is positive, while it becomes negative during the transition phase. The time for the transition increases as the normalized T_e gradient is increased and exceeds the transport time scale characterized by the global energy confinement time

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