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VOLUME 31 (1980) | ISSUE 9 | PAGE 551
Collapse of the electric field in double layers
By means of a numerical modeling of the Buneman instability it is shown that short-lived, nonstationary double layers with a potential differential of Αφ <270 T/e [Tis the plasma temperature and e is the electron charge) are produced spontaneously in a quiescent plasma with an electron current. Self-similar solutions of the hydrodynamic equations are found. These equations describe the development of the plasma cavity in which a strong acceleration of the electron and ion components of the plasma occurs, and also the explosive buildup of the electric field with a characteristic distribution of a double layer.