Radiating Shock Properties in the Z-pinch Dynamic Hohlraum

Journal Article · Thu Sep 10 00:00:00 EDT 2009 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.3241206· OSTI ID:21344628

Rochau, Gregory A; Bailey, J E; Chandler, G; Lemke, R; Peterson, K; Slutz, S ^[1]; Maron, Y; Fisher, V; Stambulchik, E ^[2]; MacFarlane, J ^[3]

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1. Sandia National Laboratories, Albuquerque, NM 87185 (United States)
2. Weizmann Institute, Rehovot (Israel)
3. Prism Computational Sciences, Madison, Wisconsin 53704 (United States)

The Z-pinch dynamic hohlraum is a high-power x-ray source used for a variety of high energy-density physics applications including high temperature opacity measurements and inertial confinement fusion (ICF). The system consists of a tungsten wire-array Z pinch that implodes onto a low-density CH{sub 2} foam launching a radiating shock that heats the hohlraum to radiation temperatures >200 eV. The temperature and density evolution of this shock have been inferred through the measurement of time- and space-resolved line emission from Si atoms locally doped in the CH{sub 2} foam. The observed emission spectra are analyzed through comparison to collisional-radiative calculations that include a detailed treatment of line-shapes and the effect of non-local radiation on the atomic level populations. As a complement to the detailed spectral data, the radial and azimuthal distribution of the axially directed shock emission is recorded with time-gated x-ray pinhole images that provide information on the spatial profile of the shock conditions. Together with broadband x-ray power measurements, these data provide a comprehensive suite of information to determine the shock dynamics and associated energetics of the Z-pinch dynamic hohlraum.

• OSTI ID: 21344628
• Journal Information: AIP Conference Proceedings, Vol. 1161, Issue 1; Conference: 16. international conference on atomic processes in plasmas, Monterey, CA (United States), 22-26 Mar 2009; Other Information: DOI: 10.1063/1.3241206; (c) 2009 American Institute of Physics; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
COMPARATIVE EVALUATIONS
ELECTRON TEMPERATURE
EMISSION SPECTRA
ENERGY DENSITY
EV RANGE
FOAMS
ICF DEVICES
INERTIAL CONFINEMENT
ION TEMPERATURE
LINEAR Z PINCH DEVICES
LONGITUDINAL PINCH
OPACITY
PLASMA
PLASMA DENSITY
PLASMA DIAGNOSTICS
SHOCK WAVES
TUNGSTEN
WIRES
COLLOIDS
CONFINEMENT
DISPERSIONS
ELEMENTS
ENERGY RANGE
EVALUATION
LINEAR PINCH DEVICES
METALS
OPEN PLASMA DEVICES
OPTICAL PROPERTIES
PHYSICAL PROPERTIES
PINCH DEVICES
PINCH EFFECT
PLASMA CONFINEMENT
REFRACTORY METALS
SPECTRA
THERMONUCLEAR DEVICES
TRANSITION ELEMENTS