Spectra emitted from plasmas produced through focusing the output of a 4-GW neodymium-glass laser onto plane solid targets of potassium, calcium, scandium, titanium, and vanadium were recorded with a 2-m grazing incidence spectrograph as were argon spectra emitted from a theta-pinch plasma. The analysis of the spectrograms yielded line classifications for the 2s2 2pn-2s2pn+ 1 and 2s 2pn+ 1-2pn+ 2 transition arrays. Identifications include those of beryllium i-like 2s 2p-2p2 spectra. The data is used to complete the tabulation of energy-level values for the 2s2 2pn, 2s 2pn+ 1, and 2pn+ 2 configurations of these elements.
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Fawcett et al. (1980) studied this question.
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