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Spatial structure analysis of direct-drive implosion cores at OMEGA using x-ray narrow-band core images

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13 Author(s)
Welser, L.A. ; Department of Physics, University of Nevada, Reno, M.S. 220, Reno, Nevada 89557 ; Mancini, R.C. ; Nagayama, T. ; Tommasini, R.
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The spectroscopic analysis of x-ray narrow-band images and space-integrated x-ray line spectra from argon-doped deuterium-filled inertial confinement fusion implosion experiments yields information about the spatial profiles in the compressed core. We discuss the analysis of direct-drive implosion experiments at OMEGA, in which images were obtained with a multimonochromatic imaging instrument. The analysis method considers data based on the argon Heβ and Lyβ spectral features and their associated Li- and He-like satellites. The temperature gradient structure is investigated by using the sensitivity of the Lyβ/Heβ emissivity ratio to the temperature.

Published in:

Review of Scientific Instruments  (Volume:77 ,  Issue: 10 )

Date of Publication:

Oct 2006

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