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Doping of graphite by an alkaline-earth metal to reduce the work function

  • Electron and Ion Beams, Accelerators
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Abstract

A technique for reducing the work function of a field-emission graphite cathode by doping it by an alkaline-earth metal (barium) is suggested. A model of formation of a barium monolayer on the cathode surface is proposed. Field-emission tests show that the operating voltage of the doped cathode is lower than that of the undoped one with the same emission current.

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Authors and Affiliations

  1. Moscow Physicotechnical Institute (State University), Institutskii pr. 9, Dolgoprudnyi, Moscow Oblast, 141700, Russia

    A. S. Baturin, K. N. Nikolski, A. I. Knyazev, R. G. Tchesov & E. P. Sheshin

Authors
  1. A. S. Baturin
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  2. K. N. Nikolski
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  3. A. I. Knyazev
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  4. R. G. Tchesov
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  5. E. P. Sheshin
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__________

Translated from Zhurnal Tekhnichesko\(\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l} \) Fiziki, Vol. 74, No. 3, 2004, pp. 62–64.

Original Russian Text Copyright © 2004 by Baturin, Nikolski, Knyazev, Tchesov, Sheshin.

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Baturin, A.S., Nikolski, K.N., Knyazev, A.I. et al. Doping of graphite by an alkaline-earth metal to reduce the work function. Tech. Phys. 49, 342–344 (2004). https://doi.org/10.1134/1.1688422

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  • DOI: https://doi.org/10.1134/1.1688422

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