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Inclusion of the electrostatic potential is found to increase the electron neoclassical heat flux by an order of magnitude, while producing only a modest increase in the ion heat flux. The analysis is done for the plateau regime, though a similar behaviour is expected in the banana regime. The poloidally varying potential, determined by quasi-neutrality, is predominantly due to ion Landau damping. The resulting E x B drift introduces terms into the electron heat flux which are comparable to those previously derived for the ion heat flux. Similar terms enter the particle flux, but cancel due to momentum balance.

Additional information

Authors: STRINGER T E, JET Joint Undertaking, Abingdon, Oxon. (GB)
Bibliographic Reference: Report: JET-P(90) 29 EN (1990) 25 pp.
Availability: Available from the Publications Officer, JET Joint Undertaking, Abingdon, Oxon. OX14 3EA (GB)
Record Number: 199011469 / Last updated on: 1994-12-02
Original language: en
Available languages: en