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Abstract

The general problem of thermal equilibrium and stability of tokamaks was first considered by Furth et al. More recently, Ohyabu and Neuhauser have considered specific equilibrium and stability problems posed when the peripheral region radiates strongly. This note also considers the thermal stability of the peripheral plasma when impurity radiation is a major loss mechanism; it complements previous work which dealt with loss of equilibrium. It is concluded that the thermal stability of the peripheral plasma depends on the details of the radiation mechanism. Whereas simple coronal equilibrium can lead to instability both charge-exchange states are stabilizing influences; neither greatly enhances the magnitude of the impurity radiation.

Additional information

Authors: ASHBY D E T F, CULHAM LABORATORY, ABINGDON, OXON. (UK);HUGHES M H CULHAM LABORATORY, ABINGDON, OXON. (UK), CULHAM LABORATORY, ABINGDON, OXON. (UK)
Bibliographic Reference: JOURNAL OF NUCLEAR MATERIALS, VOL. 111 & 112 (1982), PP. 454-456
Record Number: 1989122019600 / Last updated on: 1987-01-01
Category: PUBLICATION
Available languages: en
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