Performance optimisation of a high pressure argon dielectric barrier discharge excimer lamp: transient behaviour of the VUV output

R. Carman, D. Kane, N. Goldberg, S. Hansen, N. Gore

    Research output: Chapter in Book/Report/Conference proceedingConference proceeding contribution

    Abstract

    We report an experimental study of the operating characteristics of an air-cooled, high-pressure argon excimer VUV lamp (~126nm), driven by a dielectric barrier discharge (DBD), in the regime of high electrical power loadings close to the thermal loading limit. Remarkably, under such conditions, the VUV output is seen to reach a maximum a few seconds after turn-on, and thereafter decrease by ~50% within a few minutes. Although the rate of decrease in the VUV output is shown to be matched in part to the thermally induced rate of gas expansion from the plasma region, we propose this VUV “spiking” behaviour is similar to that reported by Gerasimov (Opt. & Spectros. 83, 534, 1997) for an interrupted discharge in a liquid N2 cooled excimer lamp.
    Original languageEnglish
    Title of host publicationProceedings of the XXXIII International Conference on Phenomena in Ionized Gases
    EditorsLuís Lemos Alves, Antonio Tejero-del-Caz
    Place of PublicationLisboa
    PublisherUniversidade de Lisboa
    Pages347
    Number of pages1
    Publication statusPublished - 2017
    EventInternational conference on Phenomena in Ionized Gases - Estoril Congress Centre, Lisbon, Portugal
    Duration: 9 Jul 201714 Jul 2017
    Conference number: XXXIII
    http://icpig2017.tecnico.ulisboa.pt/

    Conference

    ConferenceInternational conference on Phenomena in Ionized Gases
    Abbreviated titleICPIG
    Country/TerritoryPortugal
    CityLisbon
    Period9/07/1714/07/17
    Internet address

    Keywords

    • Plasma physics
    • optical physics
    • Atomic processes

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