ANOMALOUS TRANSPORT IN JET PLASMAS
Local thermal fluxes are determined experimentally for ohmic, RF wave and neutral beam heated JET plasmas through direct power balance calculations and through a modified application of "predictive" equilibrium transport codes. A realistic way of describing the RF- power deposition profile has been developed. Free boundary plasmas, important for magnetic limiter cases in JET, can now be computed fully self-consistently. The experimental local fluxes have been compared with available analytically derived ones but no acceptable agreement could be found. Many discharges can however, be modelled empirically by modifying the electron thermal transport equation so that the steady state T-e profile is constrained to fit the observed canonical shape, with both ohmic or additional heat sources.
Bibliographic Reference: 11TH INTERNATIONAL CONFERENCE ON PLASMA PHYSICS AND CONTROLLED NUCLEAR FUSION RESEARCH, KYOTO (JAPAN), NOV. 13-20, 1986 WRITE TO THE PUBLICATIONS OFFICER, JET JOINT UNDERTAKING, ABINGDON, OXON OX14 3EA (UK), MENTIONING REPORT JET-P(86)44, 1986
Record Number: 1989125079800 / Last updated on: 1987-12-01
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