Issues

 / 

2002

 / 

October

  

Reviews of topical problems


Mechanism of anomalous ion generation in vacuum arcs

 a,  b
a Lebedev Physical Institute, Russian Academy of Sciences, Leninsky prosp. 53, Moscow, 119991, Russian Federation
b Institute of Electrophysics, Ural Branch of the Russian Academy of Sciences, ul. Amundsena 106, Ekaterinburg, 620016, Russian Federation

A model for the generation of an ion flow in a vacuum arcs is proposed, based upon the analysis of electron processes. It is shown that the charge states and the velocities of directed motion of the ions result from cathode microsections being explosively destroyed by Joule heating with a high-density current. In this case, the ionization processes occur within a narrow (of the order of a micrometer) region near the cathode, and thereafter the ionic composition of the plasma remains unchanged. For arc currents of up to a kiloampere, a current increase simply increases the number of simultaneously operating ectons, thus explaining the weak experimental dependence of ion flow parameters on the vacuum arc current.

Fulltext pdf (1.3 MB)
Fulltext is also available at DOI: 10.1070/PU2002v045n10ABEH001247
PACS: 52.40.Mj, 52.75.Pv, 52.80.Mg, 52.80.Vp (all)
DOI: 10.1070/PU2002v045n10ABEH001247
URL: https://ufn.ru/en/articles/2002/10/a/
000181011300001
Citation: Mesyats G A, Barengol’ts S A "Mechanism of anomalous ion generation in vacuum arcs" Phys. Usp. 45 1001–1018 (2002)
BibTexBibNote ® (generic)BibNote ® (RIS)MedlineRefWorks

Оригинал: Месяц Г А, Баренгольц С А «Механизмы генерации аномальных ионов вакуумной дуги» УФН 172 1113–1130 (2002); DOI: 10.3367/UFNr.0172.200210a.1113

References (87) Cited by (78) Similar articles (20) ↓

  1. G.A. Mesyats “Ecton or electron avalanche from metalPhys. Usp. 38 567–590 (1995)
  2. G.A. Lyubimov, V.I. Rakhovskii “The cathode spot of a vacuum arcSov. Phys. Usp. 21 693–718 (1978)
  3. E.A. Litvinov, G.A. Mesyats, D.I. Proskurovskii “Field emission and explosive electron emission processes in vacuum dischargesSov. Phys. Usp. 26 138–159 (1983)
  4. S.P. Bugaev, E.A. Litvinov et alExplosive emission of electronsSov. Phys. Usp. 18 51–61 (1975)
  5. E.D. Korop, B.E. Meierovich et alMicropinch in a high-current diodeSov. Phys. Usp. 22 727–741 (1979)
  6. A.V. Gurevich, K.P. Zybin “Runaway breakdown and electric discharges in thunderstormsPhys. Usp. 44 1119–1140 (2001)
  7. Yu.I. Bychkov, Yu.D. Korolev, G.A. Mesyats “Pulse discharges in gases under conditions of strong ionization by electronsSov. Phys. Usp. 21 944–958 (1978)
  8. V.P. Krainov, B.M. Smirnov, M.B. Smirnov “Femtosecond excitation of cluster beamsPhys. Usp. 50 907–931 (2007)
  9. B.M. Smirnov “Cluster plasmaPhys. Usp. 43 453–491 (2000)
  10. B.M. Smirnov “Processes in expanding and condensing gasesPhys. Usp. 37 621–657 (1994)
  11. N.S. Erokhin, S.S. Moiseev “Problems of the theory of linear and nonlinear transformation of waves in inhomogeneous mediaSov. Phys. Usp. 16 64–81 (1973)
  12. Yu.P. Raizer “Breakdown and heating of gases under the influence of a laser beamSov. Phys. Usp. 8 650–673 (1966)
  13. B.M. Smirnov “Processes in plasma and gases involving clustersPhys. Usp. 40 1117–1147 (1997)
  14. A.V. Eletskii, B.M. Smirnov “Properties of cluster ionsSov. Phys. Usp. 32 763–782 (1989)
  15. B.M. Smirnov “Observational properties of ball lightningSov. Phys. Usp. 35 (8) 650–670 (1992)
  16. V.P. Kovalenko “Electron bunches in nonlinear collective beam-plasma interactionSov. Phys. Usp. 26 116–137 (1983)
  17. M.D. Gabovich “Ion-beam plasma and the propagation of intense compensated ion beamsSov. Phys. Usp. 20 134–148 (1977)
  18. É.D. Lozanskii “Development of electron avalances and streamersSov. Phys. Usp. 18 893–908 (1975)
  19. G.V. Ostrovskaya, A.N. Zaidel’ “Laser spark in gasesSov. Phys. Usp. 16 834–855 (1974)
  20. S.A. Kukushkin, A.V. Osipov “Thin-film condensation processesPhys. Usp. 41 983–1014 (1998)

The list is formed automatically.

© 1918–2024 Uspekhi Fizicheskikh Nauk
Email: ufn@ufn.ru Editorial office contacts About the journal Terms and conditions