Author:
Kovtun Yu.V.,Nagasaki K.,Kobayashi S.,Minami T.,Kado S.,Ohshima S.,Nakamura Y.,Ishizawa A.,Konoshima S.,Mizuuchi T.,Okada H.,Laqua H.,Stange T.
Abstract
The non-resonant microwave discharge in strong magnetic fields was investigated in Heliotron J under the condition, ωce/ωMW > 1 (ωce and ωMW are the angular electron cyclotron frequency and the angular microwave frequency, respectively). Following the production of a non-resonant microwave discharge plasma, it undergoes
several phases in sequence: breakdown and formation of pre-ionized plasma, increase in linear and nonlinear phases of plasma density, and quasi-stationary stage. Several modes of non-resonant microwave discharge were investigated. In the power-scanning mode in non-resonant microwave discharge, a higher plasma density than that in
the constant-power mode is achieved. The maximum average density achieved in the experiments is substantially greater than the critical density for O-wave (ordinary waves) 7.45 ⸱1016 m -3 and can reach the value of 2.5⸱10 18 m -3.
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Publisher
Problems of Atomic Science and Technology
Subject
Psychiatry and Mental health,Applied Psychology,Clinical Psychology,General Medicine,Psychiatry and Mental health,General Social Sciences,Behavioral Neuroscience,Psychiatry and Mental health,Endocrine and Autonomic Systems,Neuropsychology and Physiological Psychology,Physiology,Music,History,Education,Building and Construction,Mechanical Engineering,Mechanical Engineering,Mechanics of Materials,Control and Optimization,Computer Graphics and Computer-Aided Design,Computer Science Applications,Control and Systems Engineering,Software,Economics and Econometrics
Cited by
1 articles.
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