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Proceedings Paper

Narrow-band x-ray imaging for core temperature and density maps retrieval of direct drive implosions
Author(s): Riccardo Tommasini; Jeffrey A. Koch; Nobuhiko Izumi; Leslie A. Welser; Roberto C. Mancini; Jacques Delettrez; Sean P. Regan; Vladimir Smalyuk
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Paper Abstract

We present recent results using multi-monochromatic X-ray imaging of direct drive implosions at the OMEGA laser facility. An array of pinholes coupled to a flat multilayer mirror provides multi-spectral images distributed over a wide spectral range. Using Argon as a dopant in the DD-filled plastic shells produces emission images in the Ar He-β and Ly-β spectral regions. When used in conjunction with gated imaging detectors the instrument provides images with spatial resolution of ~10μm and temporal resolution of ~50ps. A special algorithm has been developed to reconstruct narrow-band images, which will allow the retrieval of temperature, and density maps of the core as it evolves through peak compression.

Paper Details

Date Published: 29 August 2006
PDF: 6 pages
Proc. SPIE 6317, Advances in X-Ray/EUV Optics, Components, and Applications, 631716 (29 August 2006); doi: 10.1117/12.681271
Show Author Affiliations
Riccardo Tommasini, Lawrence Livermore National Lab. (United States)
Jeffrey A. Koch, Lawrence Livermore National Lab. (United States)
Nobuhiko Izumi, Lawrence Livermore National Lab. (United States)
Leslie A. Welser, Univ. of Nevada, Reno (United States)
Roberto C. Mancini, Univ. of Nevada, Reno (United States)
Jacques Delettrez, Univ. of Rochester (United States)
Sean P. Regan, Univ. of Rochester (United States)
Vladimir Smalyuk, Univ. of Rochester (United States)

Published in SPIE Proceedings Vol. 6317:
Advances in X-Ray/EUV Optics, Components, and Applications
Ali M. Khounsary; Christian Morawe, Editor(s)

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