ANALYSIS OF CURRENT AND TEMPERATURE PROFILE FORMATION IN JET
The evolution of current and temperature profiles in JET may be understood in terms of the trajectory of the discharges in the (q-o,q-a) plans. It is found that the plasma evolves through regions in this plane which are predicted to be MHD unstable. While substantial MHD activity is observed, which is correlated with rapid current penetration, the occurrence of MHD instabilities generally has no deleterious effect on the flat top performance. As the MHD activity decays, current penetration approaches the neoclassical value, and becomes neoclassical as the current plateau value is reached. Generally the plasma current flat top is reached with q-o -> 1, and this state is maintained into the decay phase.
Bibliographic Reference: 13TH EUROPEAN CONFERENCE ON CONTROLLED FUSION AND PLASMA HEATING, SCHLIERSEE (GERMANY), APRIL 14-18, 1986 PP. 45-48 WRITE TO THE PUBLICATIONS OFFICER, JET JOINT UNDERTAKING, ABINGDON, OXON, OX14 3EA (UK) MENTIONING REPORT JET-P(86)15, 1986
Record Number: 1989125011200 / Last updated on: 1987-01-01
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