Relaxation of pressure anisotropy due to Alfvén-ion-cyclotron fluctuations observed in ion-cyclotron-range-of-frequency–heated mirror plasmas | Zendy

M. Ichimura | Zendy; M. Inutake | Zendy; R. Katsumata | Zendy; N. Hino | Zendy; Hajime Hojo | Zendy; K. Ishii | Zendy; T. Tamano | Zendy; S. Miyoshi | Zendy

Open Access

Relaxation of pressure anisotropy due to Alfvén-ion-cyclotron fluctuations observed in ion-cyclotron-range-of-frequency–heated mirror plasmas

Author(s) -

M. Ichimura,

M. Inutake,

R. Katsumata,

N. Hino,

Hajime Hojo,

K. Ishii,

T. Tamano,

S. Miyoshi

Publication year - 1993

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.70.2734

Subject(s) - physics , anisotropy , cyclotron , diamagnetism , atomic physics , ion , relaxation (psychology) , beta (programming language) , condensed matter physics , plasma , electron , nuclear physics , magnetic field , optics , quantum mechanics , social psychology , psychology , computer science , programming language

Alfvén-ion-cyclotron modes are generated over a wide range of anisotropy parameter β⊥(T⊥/T∥)2 in ICRF-heated central cell plasmas of the GAMMA 10 tandem mirror. The fluctuations are observed at a small driving force in the convectively unstable region predicted theoretically in an infinite plasma. Before reaching the β limit of β⊥=3.52×(T∥/T⊥)2, above which the absolute instability is predicted, relaxation of pressure anisotropy is observed for the first time by use of an array of diamagnetic loops together with a Faraday cup and secondary-electron emission detectors

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