PPPL-4173 is available in pdf format (1.1 MB).

A Hypothesis of Inductive Drive to Explain TEXTOR's Sawtooth Measurements

Author: T.K. Chu

Date of PPPL Report: June 2006

Accepted for publication in: Physics of Plasmas 13:7 (July 2006)

A hypothesis, based on the current density profile determined from the principle of minimum dissipation of magnetic energy, is applied to explain the measurement of q(0) and current variation in a sawtooth cycle in TEXTOR [Plasma Physics and Controlled Nuclear Fusion Research (IAEA, Vienna, 1985), Vol. I, p. 193]. A sawtooth oscillation in triggered when the on-axis current density in a configuration with m=0 and n=0 symmetry is driven inductively to a limit.