Shinku
Online ISSN : 1880-9413
Print ISSN : 0559-8516
ISSN-L : 0559-8516
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Volume 7, Issue 9
Displaying 1-5 of 5 articles from this issue
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  • Electrical Breakdown in Vacuum
    Kaizo TAKAMISAWA, Kichinosuke YAHAGI
    1964 Volume 7 Issue 9 Pages 314-320
    Published: September 20, 1964
    Released on J-STAGE: September 29, 2009
    DOIhttps://doi.org/10.3131/jvsj.7.314
    JOURNAL FREE ACCESS
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  • The Diaphragm Manometer
    Osamu TSUKAKOSHI, Masashi KIRIYA
    1964 Volume 7 Issue 9 Pages 321-327
    Published: September 20, 1964
    Released on J-STAGE: September 29, 2009
    DOIhttps://doi.org/10.3131/jvsj.7.321
    JOURNAL FREE ACCESS
    Download PDF (841K)
  • [title in Japanese]
    [in Japanese], [in Japanese]
    1964 Volume 7 Issue 9 Pages 328-329
    Published: September 20, 1964
    Released on J-STAGE: September 29, 2009
    DOIhttps://doi.org/10.3131/jvsj.7.328
    JOURNAL FREE ACCESS
    Download PDF (302K)
  • [title in Japanese]
    [in Japanese]
    1964 Volume 7 Issue 9 Pages 329-330
    Published: September 20, 1964
    Released on J-STAGE: September 29, 2009
    DOIhttps://doi.org/10.3131/jvsj.7.329
    JOURNAL FREE ACCESS
    Download PDF (257K)
  • An Orifice System for Vacuum Gauge Calibration (1)
    Shigemi NARITA
    1964 Volume 7 Issue 9 Pages 331-333
    Published: September 20, 1964
    Released on J-STAGE: September 29, 2009
    DOIhttps://doi.org/10.3131/jvsj.7.331
    JOURNAL FREE ACCESS
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    An orifice system capable of producting the steady-state conditions of known pressures from 10-3 to 10-6 Torr has been made for the practical calibration of vacuum gauges. In such a system, the pressures can be theoretically estimated from the geometrical dimensions of the orifice system and the throughput of the gas introduced into the test dome. The conductance of the orifice was calculated according to Eq. 8, proposed by Bureau, Laslett, and Keller.
    It has been ensured that the calibration factors of an identical gauge obtained by changing the orifices of different diameters are in fair agreement. However, the estimated pressures in this system seem slightly to differ from the values observed with a sub-standard ionization gauge, the ratio being of 1.08. The discrepancy may be due to the conductance estimation of the orifice system.
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