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VOLUME 25 (1977) | ISSUE 3 | PAGE 158
Modulation instability of Langmuir waves excited in a plasma by an electron beam
It is demonstrated by experiment that Langmuir waves produced in a magnetized collisionless plasma by an electron beam are subject to a modulation instability that leads to soliton formation. The large-amplitude solitons have a width not larger than 25-30 electron Debye radii and a self-consistent well of density δη/η^(5-10)Χΐ0~2.