Three-dimensional modeling and hydrodynamic scaling of National Ignition Facility implosions
نویسندگان
چکیده
منابع مشابه
Three-dimensional HYDRA simulations of National Ignition Facility targets*
The performance of a targets designed for the National Ignition Facility ~NIF! are simulated in three dimensions using the HYDRA multiphysics radiation hydrodynamics code. @M. Marinak et al., Phys. Plasmas 5, 1125 ~1998!# In simulations of a cylindrical NIF hohlraum that include an imploding capsule, all relevant hohlraum features and the detailed laser illumination pattern, the motion of the w...
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An accurate understanding of burn dynamics in implosions of cryogenically layered deuterium (D) and tritium (T) filled capsules, obtained partly through precision diagnosis of these experiments, is essential for assessing the impediments to achieving ignition at the National Ignition Facility. We present measurements of neutrons from such implosions. The apparent ion temperatures T_{ion} are in...
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Analyses of high foot implosions show that performance is limited by the radiation drive environment, i.e., the hohlraum. Reported here are significant improvements in the radiation environment, which result in an enhancement in implosion performance. Using a longer, larger case-to-capsule ratio hohlraum at lower gas fill density improves the symmetry control of a high foot implosion. Moreover,...
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We present the first results from an experimental campaign to measure the atomic ablator-gas mix in the deceleration phase of gas-filled capsule implosions on the National Ignition Facility. Plastic capsules containing CD layers were filled with tritium gas; as the reactants are initially separated, DT fusion yield provides a direct measure of the atomic mix of ablator into the hot spot gas. Ca...
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ژورنال
عنوان ژورنال: Physics of Plasmas
سال: 2019
ISSN: 1070-664X,1089-7674
DOI: 10.1063/1.5091449