Abstract
A model is developed that describes the transition region between a quasineutral plasma and a planar negative electrode and in which the electron velocity distribution is represented as the sum of two Maxwellian distributions with different temperatures or as the sum of a Maxwellian distribution and distribution corresponding to an electron beam directed toward the electrode. Criteria for the formation of a sheath of positive space charge and a secondary plasma in the transition region are derived. An analysis is made of the dependence of the structure of the transition region on the parameters of the electron distribution, the space charge density distribution in the sheath, and the density of the ion current to the electrode. The criteria obtained are compared with the Bohm criterion.
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References
F. F. Chen, in Plasma Diagnostic Techniques, Ed. by R. H. Huddlestone and S. L. Leonard (Academic, New York, 1965; Mir, Moscow, 1967).
L. Schott, in Plasma Diagnostics, Ed. by W. Lochte-Holtgreven (Elsevier, New York, 1968; Mir, Moscow, 1971).
C. Lejeune, Applied Charged Particle Optics, Ed. by A. Septier (Academic, New York, 1983), Part C, pp. 207–293.
B. V. Alekseev and V. A. Kotel’nikov, Probe Method of Plasma Diagnostics (Énergoatomizdat, Moscow, 1988).
I. N. Morozov and A. F. Nastoyashchii, Teplofiz. Vys. Temp. 33, 179 (1995).
D. Bohm, P. H. E. Burhop, and H. S. M. Massey, The Characteristics of Electrical Discharges in Magnetic Fields, Ed. by A. Guthrie and R. K. Wakerling (McGraw-Hill, New York, 1949), pp. 360–366.
R. A. Demirkhanov, Yu. V. Kursanov, and L. P. Skripal’, Zh. Tekh. Fiz. 39(4), 666 (1969) [Sov. Phys. Tech. Phys. 14, 500 (1969)].
R. A. Demirkhanov, Yu. V. Kursanov, and L. P. Skripal’, Zh. Tekh. Fiz. 40, 1351 (1970) [Sov. Phys. Tech. Phys. 15, 1047 (1971)].
Yu. Ya. Volkolupov, A. Zh. Martinson, and P. I. Ryl’tsev, in Proceedings of the 8th All-Union Conference on Emission Electronics (Nauka, Moscow, 1981), pp. 262–263.
L. Sevarac, Nucl. Instrum. Methods 38, 12 (1965).
A. I. Karchevskii, V. G. Averin, and V. N. Bezmel’nitsyn, Zh. Éksp. Teor. Fiz. 58, 1131 (1970) [Sov. Phys. JETP 31, 605 (1970)].
R. A. Demirkhanov, Yu. V. Kursanov, and L. P. Skripal’, Zh. Tekh. Fiz. 44, 1424 (1974) [Sov. Phys. Tech. Phys. 19, 891 (1974)].
V. Ya. Martens, Zh. Tekh. Fiz. 66(5), 70 (1996) [Tech. Phys. 41, 444 (1996)].
Yu. E. Kreindel’, E. A. Litvinov, and E. Yu. Sadovskaya, Zh. Tekh. Fiz. 59(10), 47 (1989) [Sov. Phys. Tech. Phys. 34, 1119 (1989)].
M. Yu. Kreindel’ and E. A. Litvinov, Zh. Tekh. Fiz. 62(5), 159 (1992) [Sov. Phys. Tech. Phys. 37, 570 (1992)].
V. Ya. Martens, Zh. Tekh. Fiz. 72(11) (2002) (in press) [Tech. Phys. 47 (2002) (in press)].
A. S. Mustafaev, A. P. Mezentsev, V. Ya. Simonov, et al., Zh. Tekh. Fiz. 54, 2153 (1984) [Sov. Phys. Tech. Phys. 29, 1263 (1984)].
V. I. Demidov and V. Ya. Simonov, in Proceedings of 7th All-Union Conference on Physics of Low-Temperature Plasma, Tashkent, 1987, Part 2, p. 210.
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Translated from Zhurnal Tekhnichesko\(\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l} \) Fiziki, Vol. 72, No. 10, 2002, pp. 45–52.
Original Russian Text Copyright © 2002 by Martens.
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Martens, V.Y. Transition region between a nonequilibrium plasma and a negative electrode. Tech. Phys. 47, 1250–1257 (2002). https://doi.org/10.1134/1.1514803
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DOI: https://doi.org/10.1134/1.1514803