The spectra of helium-like ions in laser-produced plasmas |
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Authors: | Jon C Weisheit CBruce Tarter James H Scofield Leland M Richards |
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Institution: | Lawrence Livermore Laboratory, University of California, Livermore, CA 94550, U.S.A. |
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Abstract: | We calculate intensities of lines arising from the n = 2 and n = 3 levels of highly-charged, helium-like ions in very dense plasmas. We determine the importance of recombination and cascading, and of radiation trapping, on certain line-intensity ratios, and we illustrate the relevance of these calculations to laser-plasma diagnostics. Finally, we outline the pitfalls inherent, at very high densities, in some other techniques commonly used to interpret plasma spectra. |
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