LINE BROADENING OF NE-LIKE XENON AS A DIAGNOSTIC FOR HIGH-DENSITY IMPLOSION EXPERIMENTS

The broadening of x-ray spectral lines has become an established diagnostic of Ne in high-density plasmas, particularly those of interest in inertial confinement fusion (ICF). Work to date has concentrated mostly on the broadening of K-shell lines in moderate Z (Z∼10-20) ions in plasmas with electron densities up to 1024 cm-3. In this paper we report on calculations of line broadening for Ne-like Xe (Xe44+) appropriate for diagnosis of higher density plasmas with Ne∼ 1025 cm-3. These calculations have been performed with a recently developed state of the art computer code which treats the ion and electron broadening in the quasi-static and impact approximations, respectively. In this paper, we summarize recent work examining the behavior of the width of the Ne-like Xe 3-2 and 4-2 transitions with electron density. The broadening of the 1s-3p line in H-like Ar and the 1s2-1s3p transition in He-like Ar is also studied in order to benchmark the code used in the calculations.