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Author(s):
I. Murakami, T. Kato and J. Dubau
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Title:
UV and X-Ray Spectral Lines of Be-Like Fe Ion for Plasma Diagnostics
Date of publication:
Apr. 1996
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Key words:
FeXXIII, excitation rate coefficients, population densities, spectral lines, intensity ratios, plasma diagnostics
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Abstract:
We have calculated X-ray and UV spectra of the Be-like Fe (FeXXIII) ion using collisional-radiative model including all fine-structure transitions among the 2s^2, 2s2p, 2p^2, 2snl, and 2pnl levels where n=3 and 4, adopting data for the collision strengths by Zhang & Sampson (1992) and by Sampson, Goett, & Clark (1984). Some line intensity ratios can be used for the temperature diagnostic. We show 5 ratios in UV region and 9 ratios in X-ray region as functions of electron temperature and density at 0.3 keV leq T_e leq 10 keV and n_e =1- 10^{25} cm^{-3}. The effect of cascade in these line ratios is discussed.
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