Feedback Control of an Unstable Plasma.
Final rept. 16 Sep 69-15 Jun 71,
ILLINOIS UNIV URBANA DEPT OF ELECTRICAL ENGINEERING
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The report describes the application of feedback to the flute modes expected to arise in the ELMAX plasma, a rotating, cylindrical plasma confined in a magnetic mirror device. A guiding center model of the plasma is formulated and used in a normal mode feedback analysis to investigate the stability of the plasma as the characteristics of the feedback loop change. Among the characteristics studied are the exciter geometry, the detector placement, the gain of the feedback amplifier, and the resistor and capacitor values in the compensation circuit. Based on the study, a design procedure for the control of the m1 flute mode is formulated and illustrated. Author
- Fusion Devices (Thermonuclear)
- Plasma Physics and Magnetohydrodynamics