Impurity influx model of fast tokamak disruptionsFunded under: FP2-FUSION 10C
The high plasma resistance observed in tokamak disruptions with a very rapid current decay is attributed to cooling by a rapid influx of neutral atoms from the wall or limiter. It is suggested that this influx proceeds as a narrow front, propagating from the edge to the centre of the plasma. The result of such a cooling, with carbon as the limiting material, is a drop in temperature to about 5 eV and an increase in electron density by a factor of approximately 5.
Bibliographic Reference: Report: JET-P(91)10 EN (1991) 17 pp.
Availability: Available from the Publications Officer, JET Joint Undertaking, Abingdon, Oxon. OX14 3EA (GB)
Record Number: 199110899 / Last updated on: 1994-12-02
Original language: en
Available languages: en