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Tracer spectroscopy diagnostics of doped ablators in inertial confinement fusion experiments on OMEGA

Phys. Plasmas 11, 2702 (2004); doi:10.1063/1.1647135

Published 23 April 2004

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David H. Cohen
Department of Physics and Astronomy, Swarthmore College, Swarthmore, Pennsylvania 19081

Joseph J. MacFarlane
Prism Computational Sciences, 455 Science Drive, Suite 140, Madison, Wisconsin 53711

Paul Jaanimagi
Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14627

Otto L. Landen
Lawrence Livermore National Laboratory, Livermore, California 94550

Donald A. Haynes
Los Alamos National Laboratory, Los Alamos, New Mexico 87545

David S. Conners, Katherine L. Penrose, and Nathan C. Shupe
Department of Physics and Astronomy, Swarthmore College, Swarthmore, Pennsylvania 19081
A technique has been developed for studying the time-dependent, local physical conditions in ablator samples in an inertial confinement fusion (ICF) hohlraum environment. This technique involves backlit point-projection absorption spectroscopy of thin tracer layers buried in the interior of solid samples mounted on laser-driven hohlraums. It is shown how detailed view-factor, atomic, hydrodynamics, and radiation-transport modeling can be used to infer time-dependent physical conditions in the interiors of these samples from the observed absorption spectra. This modeling is applied to the results of an experimental campaign on the OMEGA laser [T. R. Boehly et al., Opt. Commun. 133, 495 (1997)] designed to compare radiation-wave velocities in doped and undoped ICF ablator materials. ©2004 American Institute of Physics.
History: Received 27 October 2003; accepted 11 December 2003; published 23 April 2004
Permalink: http://link.aip.org/link/?PHPAEN/11/2702/1
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Supplemental Material

KEYWORDS and PACS

Keywords
PACS
  • 52.57.-z
    Laser inertial confinement
  • 52.70.La
    X-ray and gamma-ray plasma diagnostic measurements
  • 52.65.-y
    Plasma simulation
  • YEAR: 2004

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ISSN:
1070-664X (print)   1089-7674 (online)
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REFERENCES (18)
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    16. see EPAPS Document No. E-PHPAEN-11-911405 for "Visrad benchmark calculation: OMEGA Hollraum radiation temperatures." A direct link to this document may be found in the online article's HTML reference section. The document may also be reached via the EPAPS homepage (http://www.aip.org/pubservs/epaps.html) or from ftp.aip.org in the directory /epaps/. See the EPAPS homepage for more information. [EPAPS]
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