First Observations of Nonhydrodynamic Mix at the Fuel-Shell Interface in Shock-Driven Inertial Confinement Implosions

Author(s)
Amendt, P.; Delettrez, J. A.; Bellei, C.; Betti, R.; Glebov, V. Yu.; ... Show more
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Abstract
A strong nonhydrodynamic mechanism generating atomic fuel-shell mix has been observed in strongly shocked inertial confinement fusion implosions of thin deuterated-plastic shells filled with [superscript 3]He gas. These implosions were found to produce D[superscript 3]He-proton shock yields comparable to implosions of identical shells filled with a hydroequivalent 50∶50 D[superscript 3]He gas mixture. Standard hydrodynamic mixing cannot explain this observation, as hydrodynamic modeling including mix predicts a yield an order of magnitude lower than was observed. Instead, these results can be attributed to ion diffusive mix at the fuel-shell interface.
Date issued
2014-04
URI
http://hdl.handle.net/1721.1/88999
Department
Massachusetts Institute of Technology. Department of Physics; Massachusetts Institute of Technology. Plasma Science and Fusion Center
Journal
Physical Review Letters
Publisher
American Physical Society
Citation
Rinderknecht, H. G., H. Sio, C. K. Li, A. B. Zylstra, M. J. Rosenberg, P. Amendt, J. Delettrez, et al. “First Observations of Nonhydrodynamic Mix at the Fuel-Shell Interface in Shock-Driven Inertial Confinement Implosions.” Physical Review Letters 112, no. 13 (April 2014). © 2014 American Physical Society
Version: Final published version
ISSN
0031-9007
1079-7114
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