Details

Autor(en) / Beteiligte

• Wolf, N. S.
• Majeski, R.
• Lashinsky, H.
• Tripathi, V.
• Liu, C. S.

Titel

Stabilization of the Current-Driven Electrostatic Ion-Cyclotron Instability by Lower-Hybrid Waves

Ist Teil von

• Physical review letters, 1980-09, Vol.45 (10), p.799-802

Erscheinungsjahr

1980

Quelle

American Physical Society

Beschreibungen/Notizen

• The current-driven electrostatic ion-cyclotron instability in a Q machine operated in the low-density regime the square of the ratio of the electron plasma frequency to the electron cyclotron frequency is much less than 1 is stabilized by externally generated RF electrostatic fields in the lower-hybrid range. Stabilization is due to a resonant ponderomotive force, which reduces the instability frequency, thus increasing the ion-cyclotron damping. The experimental results are in good agreement with an analysis which describes the effect of RF power on the instability frequency shift and growth rate.