Electrical Breakdown Mechanisms in Vacuum Diodes

• Authors: P. Osmokrović , D. Ilić , K. Stanković , M. Vujisić , B. Lončar
• Languages of publication: EN

Abstracts

EN

This paper investigates the roles of different mechanisms constituting the process of electrical breakdown in vacuum. Random variable "vacuum breakdown voltage" was measured for pulse breakdowns in five types of vacuum diodes, with different values of vacuum pressure and inter-electrode gap. Conclusions about the influence of vacuum pressure and inter-electrode distance on the parameters of theoretical statistical distributions have been drawn. Based on the distribution to which the "vacuum breakdown voltage" random variable adheres, the dominance of certain breakdown mechanisms has been established for specific ranges of vacuum pressure. The observed absence of anode vacuum breakdown at small inter-electrode gaps has been given a theoretical interpretation.

Keywords

EN

51.50.+v

Discipline

• 51.50.+v: Electrical properties (ionization, breakdown, electron and ion mobility, etc.)(see also 52.80.-s Electric discharges in physics of plasmas)

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2010
• Volume: 118
• Issue: 4
• Pages: 585-588

Dates

published

2010-10

received

2010-05-04

Contributors

author

P. Osmokrović

• Faculty of Electrical Engineering, University of Belgrade, Bulevar Kralja Aleksandra 73, P.O. Box 3554, 11000 Belgrade, Serbia

author

D. Ilić

• Mektronik Zemun, 11080 Zemun, Serbia

author

K. Stanković

• Faculty of Electrical Engineering, University of Belgrade, Bulevar Kralja Aleksandra 73, P.O. Box 3554, 11000 Belgrade, Serbia

author

M. Vujisić

• Faculty of Electrical Engineering, University of Belgrade, Bulevar Kralja Aleksandra 73, P.O. Box 3554, 11000 Belgrade, Serbia

author

B. Lončar

• Faculty of Technology and Metallurgy, University of Belgrade, Karnegijeva 4, 11120 Belgrade, Serbia

References

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Identifiers

DOI

10.12693/APhysPolA.118.585