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Inward Turbulent Transport Produced by Positively Sheared Radial Electric Field in Stellarators

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Date

2000

Authors

Shats, Michael
Toi, K
Ohkuni, K
Yoshimura, Yasuo
Osakabe, M
Matsunaga, G
Isobe, M
Nishimura, S
Okamura, Satoshi
Matsuoka, K

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Publisher

American Physical Society

Abstract

Inward turbulent particle transport observed in the rf heated plasma of the H-1 toroidal heliac is reproduced in the CHS heliotron/torsatron by generating a region of positive radial electric field shear (E'r > 0) using electron cyclotron resonance heating of the plasma edge. Empirical condition of the radial reversal of the turbulent flux derived from two experiments indicates that the shear electric field might be universally responsible for the recorrelation of the density and plasma potential fluctuations leading to the inward transport.

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Citation

URI

http://hdl.handle.net/1885/94724

Collections

ANU Research Publications

Source

Physical Review Letters

Type

Journal article

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