1970
DOI: 10.1088/0029-5515/10/2/008
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Anomalous resistance of plasmas in sub-critical electric fields

Abstract: On the basis of the theory of weak turbulence it is shown that the principal mechanism limiting the development of ion-acoustic instability in a current-carrying plasma in an electric field can be the non-linear scattering of oscillations by electrons. The energy density of turbulent ion-acoustic pulsations is of the order W∼(2me/mi)n0 Te, where n0 is the plasma density, Te the electron temperature and m6ij the electron and ion mass.Electron scattering by turbulent pulsations occurs with an effective frequency… Show more

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Cited by 28 publications
(14 citation statements)
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“…Field penetration into plasma with varying particle temperatures over time has been considered in a number of papers. In [3][4][5][6][7], skin effect is described under conditions of turbulent heating of electrons. Nonlinear penetration of monochromatic field into plasma with ion-acoustic turbulence was studied in [8,9].…”
Section: Introductionmentioning
confidence: 99%
“…Field penetration into plasma with varying particle temperatures over time has been considered in a number of papers. In [3][4][5][6][7], skin effect is described under conditions of turbulent heating of electrons. Nonlinear penetration of monochromatic field into plasma with ion-acoustic turbulence was studied in [8,9].…”
Section: Introductionmentioning
confidence: 99%
“…These conditions agree qualitatively with theory, which states that the high-energy ion component arises from linear damping of ion-acoustic waves, 3 and that the ultimate temperature depends directly upon the heating duration T H , when the energy decay time T L is long. 5 We know from previous microwave scattering measurements of the turbulence spectrum that the ion-acoustic wave level is high during the unstable period (between a and c in Fig. I), 2 and from transport measurements that the loss rate during heating is only about the Bohm diffusion rate.…”
mentioning
confidence: 94%
“…Using the equation for skin depth 6,5 (jj pe \ 00 / W 0 W the two initial conditions should lead to currentpenetration depths of 10 and 3 cm, respectively, where a> = 2TT(3X10 5 ) = 1.9X10 6 .…”
mentioning
confidence: 99%
“…T.~(i Jpe t) 3/2 m e u 2 (2 m e /m.) 2 i.e. if t increases the ions start being heated up more quickly than the electrons 2 .…”
mentioning
confidence: 99%
“…As the value of v s increases, the ratio T / r becomes greater than unity and increases with time until the value of u c /u approaches unity (the region on the a(E) curve, where a ~ l / E [2,9]). Further heating of the plasma occurs close to the boundary of the stable region (u«u c ).…”
mentioning
confidence: 99%