https://doi.org/10.1051/epjconf/20135903001
Progress in the shock-ignition inertial confinement fusion concept
1 Laboratory for Laser Energetics and Fusion Science Center, Rochester, NY, USA
2 CEA, DAM, DIF, Arpajon, France
3 Centre Lasers Intenses et Applications, University of Bordeaux, France
4 Departments of Mechanical Engineering and Physics, University of Rochester, Rochester, NY, USA
5 Massachusetts Institute of Technology, Cambridge, MA, USA
6 Lawrence Livermore National Laboratory, Livermore, CA, USA
a e-mail: wthe@lle.rochester.edu
Published online: 15 November 2013
Shock-ignition experiments with peak laser intensities of ∼8 × 1015 W/cm2 were performed. D2-filled plastic shells were compressed on a low adiabat by 40 of the 60 OMEGA beams. The remaining 20 beams were delayed and tightly focused onto the imploding shell to generate a strong shock. Up to 35% backscattering of laser energy was measured at the highest intensity. Hard x-ray measurements reveal a relatively low hot-electron temperature of ∼40 keV, independent of intensity and spike onset time.
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