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The emission spectrum of krypton (injected into TFR tokamak plasmas) has been recorded photographically in the 15-300 Å spectral range by means of a 2 m grazing incidence spectrograph. Preliminary identification work, based on isoelectronic regularities from known spectra of other ions and ionization equilibrium calculations, has allowed 48 lines (belonging to the O I, F I, Na I, Mg I, Al I, Ar I and K I sequences) to be identified.
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Wyart et al. (1985) studied this question.
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