Photon escape probabilities for stark-broadened lyman series lines |
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| Authors: | Jon C Weisheit |
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| Institution: | Lawrence Livermore Laboratory, University of California Livermore, CA 94550, U.S.A. |
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| Abstract: | A simple formula is derived for the escape probability of photons in optically thick resonance lines of hydrogenic ions. The result is valid whenever quasi-static Stark broadening predominates in the line wings, a condition that is satisfied in most laser-produced plasmas. In contrast to impact (Lorentzian) broadening, Stark broadening tends to decrease the probability of photon escape as the plasma density increases. |
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