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Abstract

The usual resistive reconnection models of the sawtooth phenomenon in tokamaks are inconsistent with recent experimental data from the large devices such as JET. A more likely description involves an ideal motion during the collapse phase, associated with an almost flat q-profile. In this paper a non-linear calculation of the final plasma configuration resulting from any initial equilibrium having q = 1 over some central region is presented. The problem is formulated both in cylindrical and toroidal geometry, and solved for example profiles.

Additional information

Authors: BISHOP C M, CULHAM LABORATORY, ABINGDON, UK;COWLEY S C CULHAM LABORATORY, ABINGDON, UK, CULHAM LABORATORY, ABINGDON, UK
Bibliographic Reference: REPORT CLM-P838, 1988, AVAILABILITY: UKAEA, ABINGDON, UK
Record Number: 1989126098000 / Last updated on: 1989-05-01
Category: PUBLICATION
Available languages: en