Impact of Dielectronic Recombination on Ionization Dynamics and Spectroscopy of Z-pinch Stainless Steel Plasma

Journal Article · Wed Jan 21 04:00:00 EST 2009 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.3079747· OSTI ID:21255357

Dasgupta, A; Davis, J; Thornhill, J W; Giuliani, J L; Chong, Y K ^[1]; Clark, R W; Whitney, K G ^[2]

---

1. Plasma Physics Division, Naval Research Laboratory, Washington, DC 20375 (United States)
2. Berkeley Research Associates, Beltsville, Maryland 20705 (United States)

The implosion dynamics of an array of stainless steel (SS) wires on the Z and/or ZR accelerator produces an abundance of radiation from the K- and L-shell ionization stages. As the plasma assembles on axis, a number of time resolved snapshots provide temperature and density profiles and size of the emitting region. The non-LTE populations will be obtained by using detailed atomic models that include all important excitation, ionization, and recombination processes. In particular, we will investigate the effects of dielectronic recombination (DR) which is the most important recombination process for moderate to high Z plasma such as iron at moderate densities. We will analyze the ionization dynamics and generate K- and L-shell spectra using the temperature and density conditions generated in the Z and/or ZR accelerator describing the implosion with a 1-D non-LTE radiation hydrodynamics model.

• OSTI ID: 21255357
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 1088; ISSN APCPCS; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
ABUNDANCE
ACCELERATORS
ATOMIC MODELS
EXCITATION
HYDRODYNAMICS
IMPLOSIONS
IONIZATION
IRON
L SHELL
PLASMA
PLASMA DIAGNOSTICS
RECOMBINATION
SPECTROSCOPY
STAINLESS STEELS
TIME RESOLUTION
X-RAY SPECTRA