Kakuyūgō kenkyū
Online ISSN : 1884-9571
Print ISSN : 0451-2375
ISSN-L : 0451-2375
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Volume 23, Issue 4
Displaying 1-4 of 4 articles from this issue
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  • [title in Japanese]
    [in Japanese], [in Japanese], [in Japanese]
    1969 Volume 23 Issue 4 Pages 192-205
    Published: 1969
    Released on J-STAGE: March 04, 2011
    DOIhttps://doi.org/10.1585/jspf1958.23.192
    JOURNAL FREE ACCESS
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    The plasma source explored in this experiments is one of the back-diffusion type plasma sources. The working gas is argon and helium in the present work, but other gases can also be used. The pressure is as low as 10-4-10-3Torr. The electron density is 105-108 cm-3.
    The electron temperature can be changed from 0.4 to 1.4 eV. The electron drift velocity may also be controlled. Its increase lead S to a decrease of the damping of the ion waves. The ion temperature is estimated to be 0.27 ± 0.02 eV from the Landau damping of the ion wave. The ion beam with low energy is easily produced, and its energy can be controlled.
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  • [title in Japanese]
    [in Japanese], [in Japanese], [in Japanese]
    1969 Volume 23 Issue 4 Pages 206-219
    Published: 1969
    Released on J-STAGE: March 04, 2011
    DOIhttps://doi.org/10.1585/jspf1958.23.206
    JOURNAL FREE ACCESS
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    [in Japanese]
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  • [title in Japanese]
    [in Japanese], [in Japanese]
    1969 Volume 23 Issue 4 Pages 220-230
    Published: 1969
    Released on J-STAGE: March 04, 2011
    DOIhttps://doi.org/10.1585/jspf1958.23.220
    JOURNAL FREE ACCESS
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  • Characteristics of the Toroidal Heliotron P Field
    Akihiro MOHRI
    1969 Volume 23 Issue 4 Pages 231-247
    Published: 1969
    Released on J-STAGE: March 04, 2011
    DOIhttps://doi.org/10.1585/jspf1958.23.231
    JOURNAL FREE ACCESS
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    An Average minimum B field of a toroidal configuration for plasma confinement can be produced by immersing current carrying ring conductors in a toroidal magnetic field. The rings encircle the minor axis of the torus. Owing to the toroidal effect, positions of null-field lines, soparatrix and the magnetic axis all shift from their original positions in case of the linear
    Configuration. These deviations are examined with a digital computer as a function of the ring current over the wide range of the geometrical parameters such as the aspect ratio (6-64) and number of the rings (4-64). The fine structure of the field configuration much depends on these parameters. Average magnetic well are certainly formed around the separatrix and also local magnetic shear appears due to the toroidal effect. Equipotential, surfaces defined by_??_dl/B= const. close themselves, except those far from the minor axis of the torus. The critical surface where δ_??_dl/B=0 exists in the bad region of the torus and it does not coincide with the equiDotential surface.
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