Kakuyūgō kenkyū
Online ISSN : 1884-9571
Print ISSN : 0451-2375
ISSN-L : 0451-2375
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Volume 50, Issue 6
Displaying 1-5 of 5 articles from this issue
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  • Features and Usages of New Computer System of the Institute of Plasma Physics
    M-200 & VP-100 computer system
    Kenzo TSUDA
    1983 Volume 50 Issue 6 Pages 665-675
    Published: 1983
    Released on J-STAGE: March 04, 2011
    DOIhttps://doi.org/10.1585/jspf1958.50.665
    JOURNAL FREE ACCESS
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    Features, functions and usages of new computer system of the Institute Plasma Physics, Nagoya University are described. New computer system is consisted of M-200 and VP-100 computer, the latter is a special processor designed for vector operations with higher speed.
    And then some notes used it are described here.
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  • An Outline of New Vector Processor
    For the Use of FACOM-VP-100
    Yoshihiko Abe
    1983 Volume 50 Issue 6 Pages 677-699
    Published: 1983
    Released on J-STAGE: March 04, 2011
    DOIhttps://doi.org/10.1585/jspf1958.50.677
    JOURNAL FREE ACCESS
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    The Computer Center will install a new computer complex which will be made up of one FACOM VP-100 vector processor and one FACOM M-200 processor in December 1983.
    In this article, I try to survery the utility and characteristics of the FACOM VP-100 super computer. And the new computer system will provide the wide range of available computational power in the areas of simulation studies, plasma physics, nuclear fusion research and other important related fields.
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  • Theory of Clumps in Turbulent Plasmas
    Mitsuo Kono, Mistuhiro Nanbu
    1983 Volume 50 Issue 6 Pages 701-714
    Published: 1983
    Released on J-STAGE: March 04, 2011
    DOIhttps://doi.org/10.1585/jspf1958.50.701
    JOURNAL FREE ACCESS
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    The theory of microstructures in phase space called clumps is reviewed. Based on the behavior of the short range correlation (intra-clump correlation), the clump formation and disintegration are discussed. A clump kinetic equation is derived by eliminating the intra-lump degrees of freedom. Clump effects in expectation are also discussed.
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  • Solitary Wave in Electrolyte Plasma
    Taro DODO
    1983 Volume 50 Issue 6 Pages 715-718
    Published: 1983
    Released on J-STAGE: March 04, 2011
    DOIhttps://doi.org/10.1585/jspf1958.50.715
    JOURNAL FREE ACCESS
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    Posibility of the propagation of solitary wave in electrolyte has been investigated. Configuration of rectangular cages in NaCl electrolyte solution simulates the double layer plasma apparatus of Ikezi and others. Electrical pulse is applied to the cages and the electrical signal is picked up by a single probe inserted into the electrolyte. The signals picked up by the probe are an electrostatic displacement current in a dielectric (water) and an ion current flowing into the probe by the electrical potential difference between the electrolyte and the probe. The signal, delayed from the applied electrical pulse, indicating the solitary wave in the electrolyte plasma could not be detected by the probe. Investigations on the behaviour of the ion indicate that the collision frequency between the ion and the water molecule is so high that the ion acoustic wave decays extremely rapidly and the solitary wave cannot be formed.
    The interaction between the ion in electrolyte and the water molecule is much stronger than the interaction between the ion and the neutral gas molecule in gaseous plasma, and the dehaviour of the ion in the electrolyte plasma is different from that in the gaseous plasma.
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  • Laser-Produced Plasma Confinement by Surface Magnetic Field with Geometric Mirrors
    Shigeyuki TAKAGI, Hiroyuki ISHIHARA, Hidenori AKIYAMA, Chobei YAMABE, ...
    1983 Volume 50 Issue 6 Pages 719-730
    Published: 1983
    Released on J-STAGE: March 04, 2011
    DOIhttps://doi.org/10.1585/jspf1958.50.719
    JOURNAL FREE ACCESS
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    Laser plasma has been produced within the surmac with geometric mirrors, by focussing the output beam of TEA CO2 laser (10.6 μm, 1 J) on the cross-linked polyethylen target. The production process of laser plasma has been observed by image converter camera. The result indicates that two groups of laser-produced plasma are formed during the production process. In the experiments of laser plasma confinement by surmac, maximum plasma potential of +20 V is formed with time. The potential difference between different points spatially is produced at the same time and it gradually becomes the value of the ambipolar potential.
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