Line broadening of Ne-like xenon as a diagnostic for high-density implosion experiments
- Lawrence Livermore National Laboratory, University of California, Livermore, CA (USA)
- Universite de Provence, Center St. Jerome, Marseille (France)
The broadening of x-ray spectral lines has become an established diagnostic of {ital N}{sub {ital e}} in high-density plasmas, particularly those of interest in inertial confinement fusion (ICF). Work to date has concentrated mostly on the broadening of {ital K}-shell lines in moderate {ital Z} ({ital Z}{approximately}10--20) ions in plasmas with electron densities up to 10{sup 24} cm{sup {minus}3}. In this paper we report on calculations of line broadening for Ne-like Xe (Xe{sup 44+}) appropriate for diagnosis of higher density plasmas with {ital N}{sub {ital e}}{approximately}10{sup 25} cm{sup {minus}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 1{ital s}--3{ital p} line in H-like Ar and the 1{ital s}{sup 2}--1{ital s}3{ital p} transition in He-like Ar is also studied in order to benchmark the code used in the calculations.
- DOE Contract Number:
- W-7405-ENG-48
- OSTI ID:
- 6135288
- Journal Information:
- Review of Scientific Instruments; (USA), Vol. 61:10; ISSN 0034-6748
- Country of Publication:
- United States
- Language:
- English
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