1981•Unpublished venueOpen access

Active tokamak limiters; symmetrizing the edge plasma

R.W. Motley

Abstract

The surface layers of tokamak plasmas are strongly unstable to low frequency oscillations. The limiter, by imposing a non-axisymmetric state in the plasma scrape-off layer, may be the source of the free energy driving the instabilities. An active, two-faced sandwich limiter is proposed to symmetrize the scrape-off layer, thereby minimizing the mismatch between the inner and outer tokamak states.

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Available abstract

Key concepts: Limiter, Tokamak, Plasma, Rotational symmetry, Enhanced Data Rates for GSM Evolution, Layer (electronics), Atomic physics, Physics