Abstract
The influence of the escape of fast plasma electrons on the electron distribution function (EDF) in a low-voltage cesium Knudsen arc is discussed. It is shown that even with a large Knudsen parameter l e /h∼5–10 (where h is the gap and l e is the mean free path of electrons with energy of the order of the anode barrier) the electron flux from the plasma to the anode is virtually identical to that calculated with a Maxwellian EDF.
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Zh. Tekh. Fiz. 68, 61–64 (May 1998)
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Alekseev, N.I. Kinetic electron reflection coefficient in a low-voltage Knudsen arc. Tech. Phys. 43, 535–538 (1998). https://doi.org/10.1134/1.1259034
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DOI: https://doi.org/10.1134/1.1259034