Flash Kα radiography of laser-driven solid sphere compression for fast ignition
- Univ. of Nevada, Reno, NV (United States). Dept. of Physics
- Osaka Univ. (Japan). Inst. of Laser Engineering
- Tohoku Univ., Sendai (Japan). Dept. of Aerospace Engineering
- Inst. of Laser Technology, Nishi-ku, Osaka (Japan)
- Univ. of California, San Diego, CA (United States)
- Univ. of Rochester, NY (United States). Lab. for Laser Energetics
- Ecole Polytechnique, Palaiseau (France). Lab. pour l'Utilisation des Lasers Intenses (LULI)
- Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
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/cm2. Lastly, the temporal evolution of the experimental and simulated areal densities with a 2-D radiation-hydrodynamics code is in good agreement.
- Research Organization:
- Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
- Sponsoring Organization:
- USDOE
- Grant/Contract Number:
- AC52-07NA27344
- OSTI ID:
- 1438787
- Report Number(s):
- LLNL-JRNL-687258; TRN: US1900528
- Journal Information:
- Applied Physics Letters, Vol. 108, Issue 25; ISSN 0003-6951
- Publisher:
- American Institute of Physics (AIP)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
Web of Science
Magnetized fast isochoric laser heating for efficient creation of ultra-high-energy-density states
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journal | September 2018 |
Development of broadband x-ray radiography for diagnosing magnetically driven cylindrically compressed matter
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journal | August 2019 |
Peta-Pascal Pressure Driven by Fast Isochoric Heating with Multi-Picosecond Intense Laser Pulse | text | January 2019 |
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