Fusion theory and computations

Cu(In1-xGax)S2 Thin-Film Solar Cells with Efficiency above 12%, Fabricated by Sulfurization

“…<p(x) -0.96 x 2 + 0.48 x 3 We then obtain 0.48 V (2 6 The electric field required for instability would then be -(Mi/M e ) (r/R) 3/2 E which is much less than E run only if r/R « (M e /Mi) 2/3 .…”

“…The electron density and electron temperature are assumed to be such that the electron collision frequency is in the "banana regime" of neoclassical transport theory [ 2]. The possibility that toroidal plasmas may be heated to such temperatures by anomalous resistance accompanying ion-sound turbulence has attracted considerable interest [3], Our main conclusion is that, rather than merely providing small corrections to the growth rate, toroidicity has the effect of making ion sound instability virtually impossible in a banana-regime plasma. This conclusion obtains under circumstances most favourable to the instability: large temperature ratio T e /T t and large parallel electric field E. (Of course, for the sake of consistency, we must assume that E is smaller than the runaway field.)…”