On stabilization of field emission and increase in the current density

What is it about?

The paper provides a justification and a comparative analysis of the scaling directions of the developed and investigated planar triode field emission cathode unit with the aim of increasing the maximum field current density up to 0.75 A-cm-2 without sacrificing durability. The design features of the vacuum device with a planar structure provided low-voltage control - at 150 V in the mode of long-term durability and not more than 250 V in the mode of the maximum permissible emission current.

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Why is it important?

Using experimental data on the creation of long-life cathodes with field emission, the analysis of ways to further increase the density of field emission without compromising the service life of vacuum electronic devices is given.

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