A generalized criterion has been derived for the directed velocities of charged particles at the boundary of a plasma. The well-known Bohm criterion is a special case of the condition obtained. The applicability of the generalized criterion is shown by the example of a calculation of the characteristics of the plasma in a lowpressure discharge with a hollow cathode.
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Translated from Izvestiya Vysshikh Uchebnykh Zavedenii, Fizika, No. 4, pp. 3–6, April, 2011.
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Nikulin, S.P. Velocities of charged particles at a plasma boundary. Russ Phys J 54, 393–397 (2011). https://doi.org/10.1007/s11182-011-9629-9
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DOI: https://doi.org/10.1007/s11182-011-9629-9