Kakuyūgō kenkyū
Online ISSN : 1884-9571
Print ISSN : 0451-2375
ISSN-L : 0451-2375
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Volume 40, Issue 2
Displaying 1-3 of 3 articles from this issue
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  • [title in Japanese]
    [in Japanese], [in Japanese], [in Japanese]
    1978 Volume 40 Issue 2 Pages 183-196
    Published: 1978
    Released on J-STAGE: March 04, 2011
    DOIhttps://doi.org/10.1585/jspf1958.40.183
    JOURNAL FREE ACCESS
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    The collisional-radiative model is applied to a recombining hydrogen plasma in order to find the plasma state in which the population inversion between energy levels of hydrogen can be generated.
    The population inversion is expected in a plasma where the three body recombination has a large contribution to the recombining processes and the effective recombination rate is beyond a certain value for a given electron density and temperature. Calculated results are presented in figures and tables.
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  • [title in Japanese]
    [in Japanese], [in Japanese]
    1978 Volume 40 Issue 2 Pages 197-218
    Published: 1978
    Released on J-STAGE: March 04, 2011
    DOIhttps://doi.org/10.1585/jspf1958.40.197
    JOURNAL FREE ACCESS
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  • DYNAMICS OF IMPLODING LINER FOR FLUX COMPRESSION
    T. Yamagishi, M.J. Schaffer
    1978 Volume 40 Issue 2 Pages 219-238
    Published: 1978
    Released on J-STAGE: March 04, 2011
    DOIhttps://doi.org/10.1585/jspf1958.40.219
    JOURNAL FREE ACCESS
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    A solution of nonlinear equation of imploding rotating liner is derived in the incompressible model. The solution is applied, in the early stage of compressible liner implosion, for computer calculations of both one layer and two layer liners, which makes possible a significant reduction in the computation time. Energy balance and wave phenomenon in the liner are examined with use made of compressible hydrodynamics computer codes developed. Although the energy delivered to the liner rotation is large at the maximum compression, it strongly depends on the liner thickness and the angular velocity. In a liner with the angular velocity-shear, the rotation energy is found to be much reduced. In a two layer liner, a pressure wave reflected from the interface is also found to give important consequence to the liner dynamics.
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