Perveance of a planar diode with explosive emission finite-diameter cathodes

Y M Saveliev, W Sibbett, D M Parkes

Research output: Contribution to journalArticlepeer-review

24 Citations (Scopus)

Abstract

Perveance of a planar diode with explosive emission velvet cathodes of 20-100 mm diameters in a range of diode gaps of 0.5-5 cm is investigated experimentally. An empirical universal curve linking the diode perveance and the cathode radius-to-diode gap ratio is determined thus allowing application of a Child-Langmuir model to diodes of finite dimensions. Comparison of experimental results with two-dimensional (2D) computational models is made and a simple method to translate 2D simulation results to the three-dimensional diode configurations is suggested.

Original languageEnglish
Pages (from-to)2343-2345
Number of pages3
JournalApplied Physics Letters
Volume81
DOIs
Publication statusPublished - 23 Sept 2002

Keywords

  • ELECTRON

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