Extreme ultraviolet emission lines of Ni XII in laboratory and solar spectra

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Keenan, Francis; Botha, Gert; Matthews, A.; Lawson, K. D.; Coffey, Ivor;

Wavelengths for emission lines arising from 3s23p5-3s3p6 and 3s23p5-3s23p43d transitions in Ni XII have been measured in extreme ultraviolet spectra of the Joint European Torus(JET) tokamak. The 3s23p5 2P1/2-3s23p4(3P)3d 2D3/2 line is found to lie at 152.90 ± 0.02 A, a ... View more
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