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  • An assessment of theoretical models based on observations in the JET tokamak : Part II : Heat transport due to electron drift waves, electro-magnetic and resistive fluid turbulence, and magnetic islands


Theoretical estimates of the electron thermal diffusivity, driven by some of the different instabilities to which tokamak plasmas are prone, are surveyed and their regions of validity specified. The prediction for a typical set of JET profiles, where applicable, is compared with the experimental local diffusivity. The predicted and experimental scalings of the thermal diffusivity with key parameters are also compared. Although no one model reproduces the magnitude, radial variation, and parameter scalings of the experimental thermal diffusivity, several models correctly predict some of the experimental behaviour.

Additional information

Authors: TIBONE F, JET Joint Undertaking, Abingdon, Oxon. (GB);STRINGER T E, JET Joint Undertaking, Abingdon, Oxon. (GB);CONNOR J W, AEA Fusion, Culham Laboratory, Abingdon, Oxon. (GB);WILSON H R, AEA Fusion, Culham Laboratory, Abingdon, Oxon. (GB)
Bibliographic Reference: Report: JET-P(93)61 EN (1993)
Availability: Available from the Publications Officer, JET Joint Undertaking, Abingdon, Oxon. OX14 3EA (GB)
Record Number: 199311634 / Last updated on: 1994-11-28
Original language: en
Available languages: en