Extreme Ultraviolet Spectra of Emtission From Plasma Focus. : I. Fe Ion Lines from 70 to 210 Å

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概要

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• Multiply-ionized Fe atoms were produced by discharges in a plasma focus apparatus with an Fe electrode in an ambient atmosphere of He, and the discharge condition for the most intense emission from Fe ions was found. The extreme ultraviolet spectrum was photographed under this condition with a grazing incidence spectrograph in the wavelength range between 70 and 500 Å. The spectrum has many strong emission lines in the range from 170 to 200 Å and is very similar to the spectrum of the quiet sun. Lines of FeVIII to XVIII ions are identified in the range between 90 and 210 Å and are tabulated together with the measured relative intensities. The results are discussed in relation to the solar and laboratory plasma spectra so far observed in the extreme ultraviolet range.

• 社団法人応用物理学会の論文
• 1981-12-05

著者

• Fukuda Kuniya

  Department Of Engineering Physics Faculty Engineering Kyoto University

• Hasama Toshifumi

  Department Of Engineering Physics Faculty Of Engineering Kyoto University

• UCHIIKE Masamitsu

  Department of Engineering Physics, Faculty of Engineering, Kyoto University

• HASAMA Toshifumi

  Department of Engineering Physics, Faculty of Engineering, Kyoto University(Present address) Electrotechical Laboratory, Tsukuba.

• ONISHI Yoshihiko

  Department of Engineering Physics, Faculty of Engineering, Kyoto University

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