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Abstract

During long (up to 14 ms) constant current discharges in the HBTX1A reversed field pinch, the density falls until a plateau is reached whose value, in the neighbourhood of 2 x 10**19 m**-3, depends linearly on the current. Associated with the density decrease are increases in electron temperature T-e (up to about 400 eV), resistivity anomaly, Z*-eff, and streaming parameter, xi. The product n-eT-e (or beta-theta) remains approximately constant throughout. The Z*-eff often rises to values considerably in excess of 10, in contrast with the much lower value of effective ion charge measured spectroscopically.

Additional information

Authors: ALPER B, CULHAM LABORATORY, ABINGDON (UK);EVANS D E, CULHAM LABORATORY, ABINGDON (UK);STOREY D P, CULHAM LABORATORY, ABINGDON (UK);TSUI H CULHAM LABORATORY, ABINGDON (UK), CULHAM LABORATORY, ABINGDON (UK)
Bibliographic Reference: 27TH ANNUAL MEETING OF THE DIVISION OF PLASMA PHYSICS, SAN DIEGO (USA), NOV. 4-8, 1985 PAPER 2R44, PROCEEDINGS P. 1406
Record Number: 1989124130000 / Last updated on: 1987-01-01
Category: PUBLICATION
Available languages: en
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