Abstract:
A new tool for obtaining the frequency characteristics of the interaction of emission sites with adsorbates was developed. The technique is based on the use of a computerized field projector with online processing of patterns of the distribution of emission sites over the cathode surface. The resulting dependences reflect the frequency of fluctuations in the activity of individual sites. The influence of the choice of the threshold brightness parameter, the proximity of the sites to each other and the stability of the total emission current on the shape of these curves is considered. The coincidence of the shapes of curves constructed by various methods (in online mode, in post-processing mode and in the mode of random processes modeling) is analyzed.
Keywords:
field emission, emission current fluctuations, carbon nanotubes, registration of emission sites, adsorption processes on the surface.
Citation:
A. G. Kolosko, S. V. Filippov, E. O. Popov, “Dynamic registration of the number of emission centers as a tool for analyzing current fluctuations of field cathodes”, Fizika Tverdogo Tela, 63:11 (2021), 1934–1941
\Bibitem{KolFilPop21}
\by A.~G.~Kolosko, S.~V.~Filippov, E.~O.~Popov
\paper Dynamic registration of the number of emission centers as a tool for analyzing current fluctuations of field cathodes
\jour Fizika Tverdogo Tela
\yr 2021
\vol 63
\issue 11
\pages 1934--1941
\mathnet{http://mi.mathnet.ru/ftt7971}
\crossref{https://doi.org/10.21883/FTT.2021.11.51600.081}
\elib{https://elibrary.ru/item.asp?id=46636911}
Linking options:
https://www.mathnet.ru/eng/ftt7971
https://www.mathnet.ru/eng/ftt/v63/i11/p1934
This publication is cited in the following 1 articles:
Sergey V. Filippov, Anatoly G. Kolosko, Eugeni O. Popov, “Outgassing during large area field emitter operation in the diode system”, Journal of Vacuum Science & Technology B, 40:2 (2022)
Citation in format AMSBIB
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