大電力通過による高周波窓の帯電現象 Surface Charging of RF Windows Caused by RF Operation

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Alumina rf windows are used in the output portion of the klystrons in order to isolate vacuum from atmosphere and pass rf power. The window breakdown is one of the difficulties to develop klystrons. The breakdown phenomena are considered that the stored electrons caused by the multipactoring (secondary electron multiplication in the rf field) and/or by the electron implantation into the alumina ceramics are dischareged at the threshold rf-power. In this study, surface potentials are measured in air for the some kinds of alumina ceramics after rf operations. High power rf tests are performed using an S-band (2856 MHz) resonant ring with the maximum transmission power of 220 MW (2μs, 50 pps). It revealed that the measured surface potentials are around some hundred volts and that the potential distributions are different in each alumina sample.

収録刊行物

  • 真空  

    真空 42(3), 333-336, 1999-03 

    The Vacuum Society of Japan

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各種コード

  • NII論文ID(NAID)
    10002476553
  • NII書誌ID(NCID)
    AN00119871
  • 本文言語コード
    JPN
  • 資料種別
    SHO
  • ISSN
    05598516
  • NDL 記事登録ID
    4716303
  • NDL 雑誌分類
    ZN15(科学技術--機械工学・工業--流体機械)
  • NDL 請求記号
    Z16-474
  • データ提供元
    CJP書誌  NDL  J-STAGE 
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