複数パルス電子照射法によるアルミナからの二次電子放出  [in Japanese] Secondary Electron Emission from Alumina with a Multi-pulse Irradiation Method  [in Japanese]

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Author(s)

Abstract

Surface flashover on the alumina ceramics is one of the most serious problems for developing the dielectric insulation. The flashover takes place by (1) multipactor, electron multiplication on the surface and/or (2) discharge of the accumulated charges (due to multipactor). Since the multipactor sometimes induces localized surface melting, surface charging is evaluated not only at room but also at high temperature. The alumina ceramics with higher purity show lower surface chargings at room temperature and non-chargings at 650°C. A sapphire (single crystal alumina) disk shows high surface charging even at 650°C. Considering the poor performance of the sapphire for the rf window usage, less charging materials at high temperature is indicated to be the promising candidates for the dielectric insulation.

Journal

  • Shinku

    Shinku 48(3), 145-147, 2005-03-20

    The Vacuum Society of Japan

References:  8

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  • Surface Charging on High-power rf Windows by UV Irradiation  [in Japanese]

    MICHIZONO Shinichiro , SAITO Yoshio

    Shinku 46(6), 516-519, 2003-06-20

    J-STAGE  References (7) Cited by (1)

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    DOI  Cited by (2)

Codes

  • NII Article ID (NAID)
    10015476546
  • NII NACSIS-CAT ID (NCID)
    AN00119871
  • Text Lang
    JPN
  • Article Type
    SHO
  • ISSN
    05598516
  • NDL Article ID
    7322212
  • NDL Source Classification
    ZN15(科学技術--機械工学・工業--流体機械)
  • NDL Call No.
    Z16-474
  • Data Source
    CJP  NDL  J-STAGE 
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