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Title: Flash Kα radiography of laser-driven solid sphere compression for fast ignition

Abstract

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}. The temporal evolution of the experimental and simulated areal densities with a 2-D radiation-hydrodynamics code is in good agreement.

Authors:
 [1]; ; ; ; ; ; ;  [2]; ;  [3];  [4];  [5];  [6];  [7];  [8]
  1. Department of Physics, University of Nevada Reno, Reno, Nevada 89557 (United States)
  2. Institute of Laser Engineering, Osaka University, Suita, Osaka (Japan)
  3. Department of Aerospace Engineering, Tohoku University, Sendai, Miyagi (Japan)
  4. Institute of Laser Technology, Nishi-ku, Osaka (Japan)
  5. University of California San Diego, La Jolla, California 92093 (United States)
  6. Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14623 (United States)
  7. LULI, Ecole Polytechnique, Palaiseau, Cedex (France)
  8. Lawrence Livermore National Laboratory, Livermore, California 94550 (United States)
Publication Date:
OSTI Identifier:
22590833
Resource Type:
Journal Article
Journal Name:
Applied Physics Letters
Additional Journal Information:
Journal Volume: 108; Journal Issue: 25; Other Information: (c) 2016 Author(s); Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0003-6951
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; COMPRESSION; DENSITY; LASERS; MAGNESIUM 26; SPHERICAL CONFIGURATION; THERMONUCLEAR IGNITION; TWO-DIMENSIONAL SYSTEMS; X RADIATION; X-RAY RADIOGRAPHY

Citation Formats

Sawada, H., Lee, S., Nagatomo, H., Arikawa, Y., Nishimura, H., Ueda, T., Shigemori, K., Fujioka, S., Shiroto, T., Ohnishi, N., Sunahara, A., Beg, F. N., Theobald, W., Pérez, F., and Patel, P. K. Flash Kα radiography of laser-driven solid sphere compression for fast ignition. United States: N. p., 2016. Web. doi:10.1063/1.4954383.
Sawada, H., Lee, S., Nagatomo, H., Arikawa, Y., Nishimura, H., Ueda, T., Shigemori, K., Fujioka, S., Shiroto, T., Ohnishi, N., Sunahara, A., Beg, F. N., Theobald, W., Pérez, F., & Patel, P. K. Flash Kα radiography of laser-driven solid sphere compression for fast ignition. United States. https://doi.org/10.1063/1.4954383
Sawada, H., Lee, S., Nagatomo, H., Arikawa, Y., Nishimura, H., Ueda, T., Shigemori, K., Fujioka, S., Shiroto, T., Ohnishi, N., Sunahara, A., Beg, F. N., Theobald, W., Pérez, F., and Patel, P. K. Mon . "Flash Kα radiography of laser-driven solid sphere compression for fast ignition". United States. https://doi.org/10.1063/1.4954383.
@article{osti_22590833,
title = {Flash Kα radiography of laser-driven solid sphere compression for fast ignition},
author = {Sawada, H. and Lee, S. and Nagatomo, H. and Arikawa, Y. and Nishimura, H. and Ueda, T. and Shigemori, K. and Fujioka, S. and Shiroto, T. and Ohnishi, N. and Sunahara, A. and Beg, F. N. and Theobald, W. and Pérez, F. and Patel, P. K.},
abstractNote = {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}. The temporal evolution of the experimental and simulated areal densities with a 2-D radiation-hydrodynamics code is in good agreement.},
doi = {10.1063/1.4954383},
url = {https://www.osti.gov/biblio/22590833}, journal = {Applied Physics Letters},
issn = {0003-6951},
number = 25,
volume = 108,
place = {United States},
year = {2016},
month = {6}
}

Works referencing / citing this record:

Magnetized fast isochoric laser heating for efficient creation of ultra-high-energy-density states
journal, September 2018


Development of broadband x-ray radiography for diagnosing magnetically driven cylindrically compressed matter
journal, August 2019


Absolute Equation-of-State Measurement for Polystyrene from 25 to 60 Mbar Using a Spherically Converging Shock Wave
journal, July 2018


Petapascal Pressure Driven by Fast Isochoric Heating with a Multipicosecond Intense Laser Pulse
journal, January 2020