Accession Number:

AD0751341

Title:

Feedback Control of an Unstable Plasma.

Descriptive Note:

Final rept. 16 Sep 69-15 Jun 71,

Corporate Author:

ILLINOIS UNIV URBANA DEPT OF ELECTRICAL ENGINEERING

Personal Author(s):

Report Date:

1972-06-01

Pagination or Media Count:

82.0

Abstract:

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

Subject Categories:

  • Fusion Devices (Thermonuclear)
  • Plasma Physics and Magnetohydrodynamics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE