Recent results on plasma behaviour in the W VII-A Stellarator

W Vii-A Team, X. Zhang, K. Büchl, NI Group, R. Wilhelm, G. Janzen, G. Müller, P. G. Schüller, K. Schwörer, M. Thumm

Plasma Physics and Controlled Fusion · 1984 · 12 citations · 1 references

Concepts

Abstract

A wider parameter range with Bo : 2.5 T - 3.5 T and rotational transform XO = 0.25 - 0.55 became accessible for operation with neutral beam injection. Depending on the rotational transform t and a residual current Ip, which appears related to the plasma pressure, maxima and minima of the confinement are observed. The minima coincides with rational numbers of the transform T= m/n; e.g. 1/2, l/3. First results of ECRH using a 28 GHz/200 kW gyrotron will be presented. The transport within the currentless plasma will be discussed.

References

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