Direct observation of potential profiles with a 200 keV heavy ion beam probe on the Compact Helical System | Zendy

A. Fujisawa | Zendy; H. Iguchi | Zendy; S. Lee | Zendy; T. P. Crowley | Zendy; Y. Hamada | Zendy; S. Kubo | Zendy; H. Idei | Zendy; H. Sanuki | Zendy; K. Itoh | Zendy; T. Minami | Zendy; K. Tanaka | Zendy; Satoshi Nishimura | Zendy; K. Ida | Zendy; S. Hidekuma | Zendy; M. Kojima | Zendy; C. Takahashi | Zendy; S. Okamura | Zendy; K. Matsuoka | Zendy

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Direct observation of potential profiles with a 200 keV heavy ion beam probe on the Compact Helical System

Author(s) -

A. Fujisawa,

H. Iguchi,

S. Lee,

T. P. Crowley,

Y. Hamada,

S. Kubo,

H. Idei,

H. Sanuki,

K. Itoh,

T. Minami,

K. Tanaka,

Satoshi Nishimura,

K. Ida,

S. Hidekuma,

M. Kojima,

C. Takahashi,

S. Okamura,

K. Matsuoka

Publication year - 1997

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 - 10.1063/1.872310

Subject(s) - physics , atomic physics , plasma , cyclotron , ion , beam (structure) , plasma diagnostics , toroid , nuclear physics , optics , quantum mechanics

In this paper we present space potential profiles directly observed in a toroidal helical plasma of the Compact Helical System (CHS) [K. Matsuoka et al., Proceedings, 12th International Conference on Plasma Physics and Controlled Nuclear Fusion, Nice, 1988 (International Atomic Energy Agency, Vienna, 1989), Vol. 2, p. 411], using a 200 keV heavy ion beam probe. The potential profiles exhibit widely varied characteristics, including positive and negative polarities for electron cyclotron and neutral beam-heated plasmas, respectively. The behavior of high-energy particles in the CHS plasmas are deduced from loss cone diagrams evaluated from the observed potential profiles

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