plasma cathode

plasma cathode

[′plaz·mə ′kath‚ōd]
(electronics)
A cathode in which the source of electrons is a gas plasma rather than a solid.
References in periodicals archive ?
A pseudospark plasma cathode can overcome current density limitations imposed by thermionic emission as well as being able to generate a sheet electron beam without the need to use an external magnetic field.
Compton et al., "Continuous and pulsed electron beam production from an uninterrupted plasma cathode," Surface & Coatings Technology, vol.
Kaigorodov, "Diamondlike a-C:H coatings deposited in a non-self-sustained discharge with plasma cathode," Technical Physics Letters, vol.
Plasma cathode electron sources; physics, technology, applications.
Key to the operation of the PASOTRON is the generation of a high-energy electron beam from a plasma cathode, and transmission of that beam through a plasma-filled slow-wave structure without the use of an externally produced magnetic field.
The work will develop and integrate a novel plasma cathode electron source with an EBM machine focusing on realising the enhanced capabilities of low maintenance, consistent manufacturing performance and higher productivity.