First Observations of Nonhydrodynamic Mix at the Fuel-Shell Interface in Shock-Driven Inertial Confinement Implosions
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 comparab...
Main Authors: | , , , , , , , , , , , , , , , , , , , , , |
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Other Authors: | |
Format: | Article |
Language: | en_US |
Published: |
American Physical Society
2014
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Online Access: | http://hdl.handle.net/1721.1/88999 https://orcid.org/0000-0001-7274-236X https://orcid.org/0000-0002-6919-4881 https://orcid.org/0000-0003-0489-7479 https://orcid.org/0000-0003-4969-5571 https://orcid.org/0000-0002-1020-3501 |
Summary: | 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. |
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