Advances in shock timing experiments on the National Ignition Facility
نویسندگان
چکیده
منابع مشابه
Polar Direct Drive—Proof-of-Principle Experiments on OMEGA and Prospects for Ignition on the National Ignition Facility
Since the recent suggestion3 that the PDD option be reconsidered on account of the cost and complexity of rerouting half of the NIF beams, a number of two-dimensional (2-D) hydrodynamic PDD simulations have been reported. Simulations4,5 of the all-DT capsule design of Refs. 6 and 7 were carried out using the hydrodynamics code SAGE, which includes fully self-consistent 3-D ray tracing.8 These s...
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This Letter reports on a series of high-adiabat implosions of cryogenic layered deuterium-tritium (DT) capsules indirectly driven by a "high-foot" laser drive pulse at the National Ignition Facility. High-foot implosions have high ablation velocities and large density gradient scale lengths and are more resistant to ablation-front Rayleigh-Taylor instability induced mixing of ablator material i...
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212 LLE Review, Volume 96 Introduction Recent advances in direct-drive target design have enhanced target performance beyond that achieved in the original baseline ignition design.1 This substantially increases the probability of achieving moderate to high direct-drive target gain on the National Ignition Facility (NIF). The baseline direct-drive design for the NIF is itself very attractive. It...
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Pinhole imaging of large (mm scale) carbon-deuterium (CD) plasmas by proton self-emission has been used for the first time to study the microphysics of shock formation, which is of astrophysical relevance. The 3 MeV deuterium-deuterium (DD) fusion proton self-emission from these plasmas is imaged using a novel pinhole imaging system, with up to five different 1 mm diameter pinholes positioned 2...
متن کاملObservation of a reflected shock in an indirectly driven spherical implosion at the national ignition facility.
A 200 μm radius hot spot at more than 2 keV temperature, 1 g/cm^{3} density has been achieved on the National Ignition Facility using a near vacuum hohlraum. The implosion exhibits ideal one-dimensional behavior and 99% laser-to-hohlraum coupling. The low opacity of the remaining shell at bang time allows for a measurement of the x-ray emission of the reflected central shock in a deuterium pl...
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ژورنال
عنوان ژورنال: Journal of Physics: Conference Series
سال: 2016
ISSN: 1742-6588,1742-6596
DOI: 10.1088/1742-6596/688/1/012092