Line Broadening Analysis of Argon X-Ray Emission from Z-Driven Implosions Cores
- Physics Department, University of Nevada, Reno, Nevada (United States)
- Sandia National Laboratories, Albuqueruque, New Mexico (United States)
- Los Alamos National Laboratory, New Mexico (United States)
We disucss the line broadening analysis of argon-doped deuterium-filled implosion cores driven by a dynamic hohlraum z-pinch. The observed line spectra include emissions from the Ly{alpha}, Ly{beta}, Ly{gamma}, He{alpha}, He{beta}, He{gamma} and He{delta} lines in H- and He-like argon ions, respectively. The data recorded using a crystal spectrometer with space-resolving slits and coupled to a framing camera yields time- and spatially-resolved argon line spectra in the implosion core. The analysis accounts for opacity and Stark line broadening to determine electron density, Ne, and areal-density, N{delta}R, values for the ground state populations of H- and He-like argon ions. In this connection, a set of Stark-broadened line shapes was computed considering the effect of differing ion and electron temperatures, which impacts the calculation of the ion microfield distribution function, the Doppler broadening, and the ion dynamic's effect. Analysis results will be discussed emphasizing the relevance of using these detailed Stark-broadened line shapes.
- OSTI ID:
- 20895186
- Journal Information:
- AIP Conference Proceedings, Vol. 874, Issue 1; Conference: 18. international conference on spectral line shapes, Auburn, AL (United States), 4-9 Jun 2006; Other Information: DOI: 10.1063/1.2402756; (c) 2006 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
- Country of Publication:
- United States
- Language:
- English
Similar Records
Time- and space-resolved spectroscopy of dynamic hohlraum interiors.
Dynamic Stark broadening as the Dicke narrowing effect