Shock-ignition relevant experiments with planar targets on OMEGA
作者： M Hohenberger , W Theobald , SX Hu , KS Anderson , R Betti
DOI: 10.1063/1.4865373
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摘要: We report on laser-driven, strong-shock generation and hot-electron production in planar targets the presence of a pre-plasma at shock-ignition (SI) relevant laser conditions. 2-D simulations reproduce shock dynamics well, indicating ablator shocks up to 75 Mbar have been generated. observe temperatures ∼70 keV intensities 1.4 × 1015 W/cm2 with multiple overlapping beams driving two-plasmon decay instability. When extrapolated SI-relevant ∼1016 W/cm2, hot electron temperature will likely exceed 100 keV, suggesting that tightly focused without overlap are better suited for launching ignitor shock.
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sci-hub.se 参考文章(36)
M. Lafon, X. Ribeyre, G. Schurtz, Gain curves and hydrodynamic modeling for shock ignition Physics of Plasmas. ,vol. 17, pp. 052704- ,(2010) , 10.1063/1.3407623
L. J. Perkins, R. Betti, K. N. LaFortune, W. H. Williams, Shock ignition: a new approach to high gain inertial confinement fusion on the national ignition facility. Physical Review Letters. ,vol. 103, pp. 045004- ,(2009) , 10.1103/PHYSREVLETT.103.045004
R. Nora, R. Betti, One-dimensional planar hydrodynamic theory of shock ignition Physics of Plasmas. ,vol. 18, pp. 082710- ,(2011) , 10.1063/1.3619827
T. R. Boehly, V. A. Smalyuk, D. D. Meyerhofer, J. P. Knauer, D. K. Bradley, R. S. Craxton, M. J. Guardalben, S. Skupsky, T. J. Kessler, Reduction of laser imprinting using polarization smoothing on a solid-state fusion laser Journal of Applied Physics. ,vol. 85, pp. 3444- 3447 ,(1999) , 10.1063/1.369702
D. E. Fratanduono, T. R. Boehly, P. M. Celliers, M. A. Barrios, J. H. Eggert, R. F. Smith, D. G. Hicks, G. W. Collins, D. D. Meyerhofer, The direct measurement of ablation pressure driven by 351-nm laser radiation Journal of Applied Physics. ,vol. 110, pp. 073110- ,(2011) , 10.1063/1.3646554
S Atzeni, A Schiavi, A Marocchino, Studies on the robustness of shock-ignited laser fusion targets Plasma Physics and Controlled Fusion. ,vol. 53, pp. 035010- ,(2011) , 10.1088/0741-3335/53/3/035010
D. T. Michel, A. V. Maximov, R. W. Short, J. A. Delettrez, D. Edgell, S. X. Hu, I. V. Igumenshchev, J. F. Myatt, A. A. Solodov, C. Stoeckl, B. Yaakobi, D. H. Froula, Measured hot-electron intensity thresholds quantified by a two-plasmon-decay resonant common-wave gain in various experimental configurationsa) Physics of Plasmas. ,vol. 20, pp. 055703- ,(2013) , 10.1063/1.4803090
X Ribeyre, G Schurtz, M Lafon, S Galera, S Weber, Shock ignition: an alternative scheme for HiPER Plasma Physics and Controlled Fusion. ,vol. 51, pp. 015013- ,(2009) , 10.1088/0741-3335/51/1/015013
C. Stoeckl, V. Yu. Glebov, D. D. Meyerhofer, W. Seka, B. Yaakobi, R. P. J. Town, J. D. Zuegel, Hard x-ray detectors for OMEGA and NIF Review of Scientific Instruments. ,vol. 72, pp. 1197- 1200 ,(2001) , 10.1063/1.1322621
J. F. Myatt, J. Zhang, J. A. Delettrez, A. V. Maximov, R. W. Short, W. Seka, D. H. Edgell, D. F. DuBois, D. A. Russell, H. X. Vu, The dynamics of hot-electron heating in direct-drive-implosion experiments caused by two-plasmon-decay instability Physics of Plasmas. ,vol. 19, pp. 022707- ,(2012) , 10.1063/1.3683004