Kakuyūgō kenkyū
Online ISSN : 1884-9571
Print ISSN : 0451-2375
ISSN-L : 0451-2375
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Volume 17, Issue 6
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  • Measurements of BSG Plasmawith a 2mm Microwave Interferometer (BSG-4)
    Junji Fujita, Yukio Okamoto, Kenro Miyamoto, Sunao Kawasaki, Nobuyuki ...
    1966 Volume 17 Issue 6 Pages 540-551
    Published: 1966
    Released on J-STAGE: March 04, 2011
    DOIhttps://doi.org/10.1585/jspf1958.17.540
    JOURNAL FREE ACCESS
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    A 2mm microwave transmission interferometer is used to measure the electron density, collision frequency and electron temperature in order to study the expanding plasma of BSG I device. The electron density is above 2.5×1020m-3 at the peak and the microwave beam is cut off. The density decay below cut off is obtained from the phase shift and the density profile measured by floating double probes. Oversized waveguide of 10Ge/s, standard pyramidal horns of 25db gain andteflon lenses about 60mm infocal distance are used.
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