Kakuyūgō kenkyū
Online ISSN : 1884-9571
Print ISSN : 0451-2375
ISSN-L : 0451-2375
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Volume 26, Issue 5
Displaying 1-3 of 3 articles from this issue
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  • Experiments on radiating xenon plasma flows in an arc driven shock tube
    Yuji Enomoto, Noriaki Gohda, Hiromichi Ezumi
    1971 Volume 26 Issue 5 Pages 263-273
    Published: 1971
    Released on J-STAGE: March 04, 2011
    DOIhttps://doi.org/10.1585/jspf1958.26.263
    JOURNAL FREE ACCESS
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    The electrical conductivity of xenon plasma in an arc driven shock tube was measured by means of a conductivity probe of magnetic induction type. The decay of continuous emission intensities was also measured at the two wavelengths 4425 Å and 3975Å. The initial xenon pressure (P1) ranged from 1.5 to 10 torr. The shock Mach number (Ms) ranged roughly from 15 to 24. The effect of radiation cooling on the decay of electrical conductivity and that of continuous emission intensity was studied together with our previous measurements in a pressure driven shock tube, (P1= 1-5 torr and Ms = 9-14).For higher. shock Mach numbers, the measured decrease of electrical conductivity and that of continuous emission intensity. could be correlated with continuum radiation loss. For lower shock Mach numbers at P1=1 and 2 torr, however, the decrease is much faster than the calculated value assuming continuum radiation loss alone. To obtain a possible explanation. for this discrepancy, the influence of line radiation loss was briefly discussed.
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  • Neutral Sheet Pinch Experiment
    Nobuki Kawashima, Nobuyoshi Ohayabu
    1971 Volume 26 Issue 5 Pages 274-289
    Published: 1971
    Released on J-STAGE: March 04, 2011
    DOIhttps://doi.org/10.1585/jspf1958.26.274
    JOURNAL FREE ACCESS
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    Neutral Sheet Pinch was studied experimentally in order to simulate the space physical phenomena (Solar flare, Geomagnetic tail). Neutral Sheet was produced by driving the plasma current at the neutral point of cusp and quadrupole magnetic field. Under the appropriate condition, sheet pinch collapses and plasma blobs are ejected along the magnetic field on the neutral plane, which is thought to be related to the ejection of plasma at solar flares. The mechanism of pinch collapses is also discussed concerned with the tearing mode of resistive instability.
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  • [title in Japanese]
    [in Japanese], [in Japanese], [in Japanese], [in Japanese], [in Japane ...
    1971 Volume 26 Issue 5 Pages 290-306
    Published: 1971
    Released on J-STAGE: March 04, 2011
    DOIhttps://doi.org/10.1585/jspf1958.26.290
    JOURNAL FREE ACCESS
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