MO型フランジの加速器ビームダクトへの応用その2 : 実機へ適用 Application of MO-type Vacuum Flange to Accelerator Beam Duct 2 : Application to the KEK B-Factory Ring

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  The MO (Matsumoto-Ohtsuka)-type vacuum flange was applied to a beam duct of the KEK B-Factory (KEKB) positron ring, following a previous basic experiment<sup>1)</sup>. The aperture was complicated, i.e., a circular beam channel with two rectangular antechambers, but a stable vacuum sealing was achieved with a reasonable fastening torque of 14-15 Nm. The final gap between flanges was larger than that in the case of a test with a blank flange. Welding of the flange to a beam duct seemed to increase its mechanical strength. Up to the stored beam current of 1700 mA, no problem, such as excess heating or arcing, was found. A copper-ally MO-type flange was also examined, considering a case of connecting to a copper beam duct. The vacuum sealing was successfully achieved at a fastening torque of 12-144Nm, even with a baking at 150°C for 24 hours.<br>

収録刊行物

  • 真空 = JOURNAL OF THE VACUUM SOCIETY OF JAPAN  

    真空 = JOURNAL OF THE VACUUM SOCIETY OF JAPAN 49(3), 135-137, 2006-03-20 

    The Vacuum Society of Japan

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各種コード

  • NII論文ID(NAID)
    10018133482
  • 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
    7930778
  • 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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