Gyrotron collective Thomson scattering from plasma fluctuations in a Tara axicell

Collective Thomson scattering in the Tara Tandem Mirror axicell at MIT was accomplished with a 137‐GHz, ∼0.4‐kW, 75‐ms pulsed gyrotron. Ion cyclotron waves, ion Bernstein wave harmonics, and other plasma fluctuations possibly due to microinstabilities and magnetohydrodynamic (MHD) activity have been...

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Veröffentlicht in:	Rev. Sci. Instrum.; (United States) 1988-08, Vol.59 (8), p.1562-1564
Hauptverfasser:	Machuzak, J. S., Woskov, P. P., Myer, R. C., Mulligan, W. J., Cohn, D. R., Gerver, M., Golovato, S. N., Horne, S., Kubota, S., Post, R. S., Rhee, D., Sullivan, J., Temkin, R. J.
Format:	Artikel
Sprache:	eng
Schlagworte:	70 PLASMA PHYSICS AND FUSION TECHNOLOGY 700102 - Fusion Energy- Plasma Research- Diagnostics 700108 - Fusion Energy- Plasma Research- Wave Phenomena AMPLIFIERS BERNSTEIN MODE CYCLOTRON RESONANCE ELECTROMAGNETIC RADIATION ELECTRONIC EQUIPMENT FLUCTUATIONS HEATING HIGH-FREQUENCY HEATING ICR HEATING INELASTIC SCATTERING ION CYCLOTRON-RESONANCE MAGNETIC MIRRORS MICROWAVE AMPLIFIERS MICROWAVE EQUIPMENT MICROWAVE RADIATION OPEN PLASMA DEVICES OSCILLATION MODES PLASMA DIAGNOSTICS PLASMA HEATING RADIATIONS RESONANCE SCATTERING TANDEM MIRRORS TARA DEVICES THERMONUCLEAR DEVICES THOMSON SCATTERING VARIATIONS
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Zusammenfassung:	Collective Thomson scattering in the Tara Tandem Mirror axicell at MIT was accomplished with a 137‐GHz, ∼0.4‐kW, 75‐ms pulsed gyrotron. Ion cyclotron waves, ion Bernstein wave harmonics, and other plasma fluctuations possibly due to microinstabilities and magnetohydrodynamic (MHD) activity have been observed during ion cyclotron resonance frequency (ICRF) heating. The observation of ion Bernstein waves may be due to an enhanced ion thermal fluctuation spectrum in an ICRF heated plasma.
ISSN:	0034-6748 1089-7623
DOI:	10.1063/1.1140197