Developing a platform to assess the evolution of the fuel-liner interface due to laser preheat in MagLIF
ORAL
Abstract
In magnetized liner inertial fusion (MagLIF), a laser is used to preheat fusion fuel to 0.1-1 keV, a ~10 T axial magnetic field is applied to suppress radial thermal conduction losses, and up to 21 MA is delivered by the Z facility to implode the target, compressing the fuel to achieve fusion conditions. Radiation from the laser-heated fuel interacts with the inner surface of the target, causing material to ablate and migrate into the fuel. Additionally, a radial blast wave is generated, which may enhance transport of target material into the fuel. We present a radiography platform developed on the Omega EP laser facility to isolate and study the evolution of the fuel-liner interface during the preheat stage. Initial radiographs show dynamics of the dense liner wall, as well as low-density material released from the inner surface, observable with a high-Z contrast layer.
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Presenters
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Matthew R Gomez
Sandia National Laboratories
Authors
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Matthew R Gomez
Sandia National Laboratories
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Jeffrey R Fein
Sandia National Laboratories
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Matthew R Weis
Sandia National Laboratories
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Jaela Cecilia Whitfield
University of Michigan
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Stephanie M Miller
University of Michigan
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Eric C Harding
Sandia National Lab
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Stephen A Slutz
Sandia National Laboratories
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Adam J Harvey-Thompson
Sandia National Laboratories
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Carolyn C Kuranz
University of Michigan
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David J. Ampleford
Sandia National Laboratories