エポキシ樹脂の真空中沿面放電特性と二次電子放出特性  [in Japanese] Vacuum Surface Flashover Characteristics and Secondary Electron Emission Characteristics of Epoxy Resin and FRP Insulator  [in Japanese]

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Author(s)

Abstract

Neutral beam injectors (NBI) used for JT-60 are required to generate negative ions of 500 keV energies. To produce such high-energy ions, the electrostatic accelerators consisting of 3-stage of electrodes and three insulator rings are applied. The insulators are made of Fiberglass Reinforced Plastic (FRP) which is composed of epoxy resin and glass fibers. The surface discharges along the insulators are one of the most serious problems in the development of NBI. To increase the hold-off voltage against surface flashover events, it is necessary to investigate the FRP and epoxy resin insulator properties related to surface discharges in vacuum. This paper describes surface flashover characteristics for epoxy resin, FRP and Alumina samples under vacuum condition. In addition, the measurements of secondary electron emission (SEE) characteristics are also reported. These are important parameters to analyze surface discharge characteristics of insulators in vacuum.

Journal

  • IEEJ Transactions on Fundamentals and Materials

    IEEJ Transactions on Fundamentals and Materials 130(12), 1067-1072, 2010-12-01

    The Institute of Electrical Engineers of Japan

References:  4

Cited by:  1

Codes

  • NII Article ID (NAID)
    10027457228
  • NII NACSIS-CAT ID (NCID)
    AN10136312
  • Text Lang
    JPN
  • Article Type
    Journal Article
  • ISSN
    03854205
  • NDL Article ID
    10895208
  • NDL Source Classification
    ZN31(科学技術--電気工学・電気機械工業)
  • NDL Call No.
    Z16-793
  • Data Source
    CJP  CJPref  NDL  J-STAGE 
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