Abstract
A plasma column is produced by diffusion along a steady magnetic field by a helical microwave discharge source located at one end of a linear machine. Waves in the plasma are electrostatically excited by a split-cylindrical, slow-wave structure. Movable well-balanced RF double probes are used to measure RF electric field amplitude as a function of frequency. This frequency domain includes the Trivelpiece-Gould (T-G) mode (fLH<f<f pe), surface wave mode, electrostatic ion cyclotron mode (f ci<f<fLH) and ion-acoustic mode (f<or approximately=fci). Experimentally observed resonances and dispersion curves of the bounded plasma system are in good agreement with theory for ion-acoustic waves, surface waves and T-G mode.
Original language | English |
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Article number | 004 |
Pages (from-to) | 525-540 |
Number of pages | 16 |
Journal | Plasma Physics |
Volume | 18 |
Issue number | 7 |
DOIs | |
Publication status | Published - 1976 |