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Proceedings Paper

Nonlinear laser-plasma interaction in magnetized liner inertial fusion
Author(s): Matthias Geissel; T. J. Awe; D. E. Bliss; M. E. Campbell; M. R. Gomez; E. Harding; A. J. Harvey-Thompson; S. B. Hansen; C. Jennings; M. W. Kimmel; P. Knapp; S. M. Lewis; R. D. McBride; K. Peterson; M. Schollmeier; D. J. Scoglietti; A. B. Sefkow; J. E. Shores; D. B. Sinars; S. A. Slutz; I. C. Smith; C. S. Speas; R. A. Vesey; J. L. Porter
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Paper Abstract

Sandia National Laboratories is pursuing a variation of Magneto-Inertial Fusion called Magnetized Liner Inertial Fusion, or MagLIF. The MagLIF approach requires magnetization of the deuterium fuel, which is accomplished by an initial external B-Field and laser-driven pre-heat. While magnetization is crucial to the concept, it is challenging to couple sufficient energy to the fuel, since laser-plasma instabilities exist, and a compromise between laser spot size, laser entrance window thickness, and fuel density must be found. Nonlinear processes in laser plasma interaction, or laser-plasma instabilities (LPI), complicate the deposition of laser energy by enhanced absorption, backscatter, filamentation and beam-spray. Key LPI processes are determined, and mitigation methods are discussed. Results with and without improvement measures are presented.

Paper Details

Date Published: 4 March 2016
PDF: 7 pages
Proc. SPIE 9731, Nonlinear Frequency Generation and Conversion: Materials, Devices, and Applications XV, 97310O (4 March 2016); doi: 10.1117/12.2218577
Show Author Affiliations
Matthias Geissel, Sandia National Labs. (United States)
T. J. Awe, Sandia National Labs. (United States)
D. E. Bliss, Sandia National Labs. (United States)
M. E. Campbell, Lab. for Laser Energetics (United States)
M. R. Gomez, Sandia National Labs. (United States)
E. Harding, Sandia National Labs. (United States)
A. J. Harvey-Thompson, Sandia National Labs. (United States)
S. B. Hansen, Sandia National Labs. (United States)
C. Jennings, Sandia National Labs. (United States)
M. W. Kimmel, Sandia National Labs. (United States)
P. Knapp, Sandia National Labs. (United States)
S. M. Lewis, The Univ. of Texas at Austin (United States)
R. D. McBride, Sandia National Labs. (United States)
K. Peterson, Sandia National Labs. (United States)
M. Schollmeier, Sandia National Labs. (United States)
D. J. Scoglietti, Sandia National Labs. (United States)
A. B. Sefkow, Sandia National Labs. (United States)
J. E. Shores, Sandia National Labs. (United States)
D. B. Sinars, Sandia National Labs. (United States)
S. A. Slutz, Sandia National Labs. (United States)
I. C. Smith, Sandia National Labs. (United States)
C. S. Speas, Sandia National Labs. (United States)
R. A. Vesey, Sandia National Labs. (United States)
J. L. Porter, Sandia National Labs. (United States)


Published in SPIE Proceedings Vol. 9731:
Nonlinear Frequency Generation and Conversion: Materials, Devices, and Applications XV
Konstantin L. Vodopyanov; Kenneth L. Schepler, Editor(s)

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