Tomography of (2, 1) and (3, 2) magnetic island structures on Tokamak Fusion Test Reactor | Zendy

Y. Nagayama | Zendy; G. Taylor | Zendy; E. D. Fredrickson | Zendy; R. Budny | Zendy; A. Janos | Zendy; D.K. Mansfield | Zendy; K. McGuire | Zendy; M. Yamada | Zendy

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Tomography of (2, 1) and (3, 2) magnetic island structures on Tokamak Fusion Test Reactor

Author(s) -

Y. Nagayama,

G. Taylor,

E. D. Fredrickson,

R. Budny,

A. Janos,

D.K. Mansfield,

K. McGuire,

M. Yamada

Publication year - 1996

Publication title -

physics of plasmas

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.75

H-Index - 160

eISSN - 1089-7674

pISSN - 1070-664X

DOI - 10.1063/1.871534

Subject(s) - physics , tokamak , tokamak fusion test reactor , plasma , sawtooth wave , toroid , ohmic contact , atomic physics , cyclotron , plasma diagnostics , electron , nuclear physics , fusion , nuclear magnetic resonance , electrode , linguistics , philosophy , quantum mechanics , computer science , computer vision

High-resolution electron cyclotron emission (ECE) image reconstruction has been used to observe (m,n)=(2,1) and (3, 2) island structures on Tokamak Fusion Test Reactor [Plasma Phys. Controlled. Fusion 33, 1509 (1991)], where m and n are the poloidal and the toroidal mode number, respectively. The observed island structure is compared with other diagnostics, such as soft x-ray tomography and magnetic measurements. A cold elliptic island is observed after lithium pellet injection. Evidence for the enhancement of the heat transfer due to the island is observed. A relaxation phenomenon due to the m=2 mode is newly observed in Ohmic plasmas

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