Flash Kα radiography of laser-driven solid sphere compression for fast ignition [electronic resource].
- Washington, D.C. : United States. Dept. of Energy, 2016. and Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy
- Physical Description:
- Article numbers 254,101 : digital, PDF file
- Additional Creators:
- Lawrence Berkeley National Laboratory, United States. Department of Energy, and United States. Department of Energy. Office of Scientific and Technical Information
- Restrictions on Access:
- Free-to-read Unrestricted online access
- Time-resolved compression of a laser-driven solid deuterated plastic sphere with a cone was measured with flash Kα x-ray radiography. A spherically converging shockwave launched by nanosecond GEKKO XII beams was used for compression while a flash of 4.51 keV Ti Kα x-ray backlighter was produced by a high-intensity, picosecond laser LFEX (Laser for Fast ignition EXperiment) near peak compression for radiography. Areal densities of the compressed core were inferred from two-dimensional backlit x-ray images recorded with a narrow-band spherical crystal imager. The maximum areal density in the experiment was estimated to be 87 ± 26 mg/cm<sup>2</sup>. Lastly, the temporal evolution of the experimental and simulated areal densities with a 2-D radiation-hydrodynamics code is in good agreement.
- Published through SciTech Connect., 06/20/2016., "llnl-jrnl--687258", Applied Physics Letters 108 25 ISSN 0003-6951 AM, and H. Sawada; S. Lee; T. Shiroto; H. Nagatomo; Y. Arikawa; H. Nishimura; T. Ueda; K. Shigemori; A. Sunahara; N. Ohnishi; F. N. Beg; W. Theobald; F. Perez; P. K. Patel; S. Fujioka.
- Funding Information:
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