放射線による圧力測定異常の実験的研究 Experimental Research of Misreading of Pressure Measurement by Radiation

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抄録

  In the SPring-8 storage ring, we could not make an accurate measurement of pressure using a Bayard-Alpert vacuum gauge near the photon-absorber due to the irradiation of the scattered X-ray to a gauge head. Therefore the effect of X-ray irradiation to a gauge head has been investigated experimentally. As the results, the ion current of the collector electrode was detected without emission current from the filament. It was confirmed that the causes of the ion current were photoelectric effect and Compton scattering to the collector electrode and the ionization of gases. Especially, the ion current caused by ionization of air between the gauge head and the connector was extremely large. With these experiments, we identified main cause and its mechanism.<br>

収録刊行物

  • 真空  

    真空 51(6), 386-391, 2008-06-20 

    The Vacuum Society of Japan

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各種コード

  • NII論文ID(NAID)
    10021157722
  • NII書誌ID(NCID)
    AN00119871
  • 本文言語コード
    JPN
  • 資料種別
    SHO
  • ISSN
    18822398
  • NDL 記事登録ID
    9571186
  • 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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