Efforts to stabilize the M = 2 helical instability in ATC

Conference · Wed Jan 01 00:00:00 EST 1975

OSTI ID:4085654

Bol, K; Ellis, Jr, R A; Hsuan, H

Experiments show that there is no difficulty about interacting with a 2/ 1 mode in ATC, and that given sufficient gain and a harmonic-free control winding the probability of stabilizing it is good. Control by steadily applied, DC quadrupole fields, on the other hand, on the basis of experiments with ATC as well as Pulsator, would seem at this juncture to have a small chance of success. Finally, the high currents achieved in gettered discharges offer the possibility that if control of wall emission can be achieved--e.g., with a divertor--one may simultaneously achieve a measure of control of the 2/1 and higher modes. (auth)

• Research Organization: Princeton Univ., N.J. (USA). Plasma Physics Lab.
• NSA Number: NSA-33-019892
• OSTI ID: 4085654
• Report Number(s): CONF-7509104-1
• Resource Relation: Conference: Soviet-American seminar on feedback and dynamic stabilization of high temperature plasmas, Sukhuric, Union of Soviet Socialist Republics (USSR), 23 Sep 1975; Other Information: Orig. Receipt Date: 30-JUN-76
• Country of Publication: United States
• Language: English

Related Subjects

N70700* -Physics-Controlled Thermonuclear Research- Stability
700107* -Fusion Energy-Plasma Research-Plasma Instabilities
*ATC DEVICES- HELICAL INSTABILITY
*PLASMA MACROINSTABILITIES- HELICAL INSTABILITY
FEEDBACK
PLASMA DRIFT
TOROIDAL CONFIGURATION