Quenching thermal instability in the body of a thermionic arc cathode

Almeida, P. G. C.; Benilov, M. S.; Cunha, M. D.; Gomes, J. G. L.

http://hdl.handle.net/10400.13/4545

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Resumo(s)

The possibility of quenching the instability causing the appearance of spots on thermionic cathodes of high-pressure arc discharges is demonstrated by means of numerical simulations and experimentally. This possibility stems from the fact that the instability is of a thermal nature and therefore slow. While of significant interest by itself, this possibility may be exploited to prevent in real time the formation of cathode spots in arc devices.

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Thermionic arc cathode Quenching thermal instability . Faculdade de Ciências Exatas e da Engenharia

URI

http://hdl.handle.net/10400.13/4545

Citação

Almeida, P. G. C., Benilov, M. S., Cunha, M. D., & Gomes, J. G. L. (2013). Quenching thermal instability in the body of a thermionic arc cathode. Plasma Sources Science and Technology, 22(1), 012002. DOI: 10.1088/0963-0252/22/1/012002