Search Results - "Landen, O. L."
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Record Energetics for an Inertial Fusion Implosion at NIF
Published in Physical review letters (11-01-2021)“…Inertial confinement fusion seeks to create burning plasma conditions in a spherical capsule implosion, which requires efficiently absorbing the driver energy…”
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Azimuthal Drive Asymmetry in Inertial Confinement Fusion Implosions on the National Ignition Facility
Published in Physical review letters (10-04-2020)“…Data from nuclear diagnostics present correlated signatures of azimuthal implosion asymmetry in recent indirect-drive inertial confinement fusion (ICF)…”
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3
2D X-ray radiography of imploding capsules at the national ignition facility
Published in Physical review letters (16-05-2014)“…First measurements of the in-flight shape of imploding inertial confinement fusion (ICF) capsules at the National Ignition Facility (NIF) were obtained by…”
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Observation of Hydrodynamic Flows in Imploding Fusion Plasmas on the National Ignition Facility
Published in Physical review letters (17-09-2021)“…Inertial confinement fusion implosions designed to have minimal fluid motion at peak compression often show significant linear flows in the laboratory,…”
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5
High-Performance Indirect-Drive Cryogenic Implosions at High Adiabat on the National Ignition Facility
Published in Physical review letters (26-09-2018)“…To reach the pressures and densities required for ignition, it may be necessary to develop an approach to design that makes it easier for simulations to guide…”
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First measurements of hydrodynamic instability growth in indirectly driven implosions at ignition-relevant conditions on the National Ignition Facility
Published in Physical review letters (08-05-2014)“…Ignition experiments have shown an anomalous susceptibility to hydrodynamic instability growth. To help understand these results, the first hydrodynamic…”
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Evidence of Three-Dimensional Asymmetries Seeded by High-Density Carbon-Ablator Nonuniformity in Experiments at the National Ignition Facility
Published in Physical review letters (15-01-2021)“…Inertial confinement fusion implosions must achieve high in-flight shell velocity, sufficient energy coupling between the hot spot and imploding shell, and…”
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First high-convergence cryogenic implosion in a near-vacuum hohlraum
Published in Physical review letters (01-05-2015)“…Recent experiments on the National Ignition Facility [M. J. Edwards et al., Phys. Plasmas 20, 070501 (2013)] demonstrate that utilizing a near-vacuum hohlraum…”
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Hohlraum Reheating from Burning NIF Implosions
Published in Physical review letters (09-02-2024)“…As fusion experiments at the National Ignition Facility (NIF) approach and exceed breakeven, energy from the burning capsule is predicted to couple to the gold…”
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Demonstration of Scale-Invariant Rayleigh-Taylor Instability Growth in Laser-Driven Cylindrical Implosion Experiments
Published in Physical review letters (08-05-2020)“…Rayleigh-Taylor instability growth is shown to be hydrodynamically scale invariant in convergent cylindrical implosions for targets that varied in radial…”
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Observations of continuum depression in warm dense matter with x-ray Thomson scattering
Published in Physical review letters (11-04-2014)“…Detailed measurements of the electron densities, temperatures, and ionization states of compressed CH shells approaching pressures of 50 Mbar are achieved with…”
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Time-Resolved Fuel Density Profiles of the Stagnation Phase of Indirect-Drive Inertial Confinement Implosions
Published in Physical review letters (09-10-2020)“…The implosion efficiency in inertial confinement fusion depends on the degree of stagnated fuel compression, density uniformity, sphericity, and minimum…”
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Absolute Equation-of-State Measurement for Polystyrene from 25 to 60 Mbar Using a Spherically Converging Shock Wave
Published in Physical review letters (13-07-2018)“…We have developed an experimental platform for the National Ignition Facility that uses spherically converging shock waves for absolute equation-of-state (EOS)…”
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14
Generation and Beaming of Early Hot Electrons onto the Capsule in Laser-Driven Ignition Hohlraums
Published in Physical review letters (19-02-2016)“…In hohlraums for inertial confinement fusion (ICF) implosions on the National Ignition Facility, suprathermal hot electrons, generated by laser plasma…”
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15
Extended X-ray absorption fine structure of dynamically-compressed copper up to 1 terapascal
Published in Nature communications (10-11-2023)“…Large laser facilities have recently enabled material characterization at the pressures of Earth and Super-Earth cores. However, the temperature of the…”
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Observations of plasmons in warm dense matter
Published in Physical review letters (09-02-2007)“…We present the first collective x-ray scattering measurements of plasmons in solid-density plasmas. The forward scattering spectra of a laser-produced…”
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Thermal Temperature Measurements of Inertial Fusion Implosions
Published in Physical review letters (24-08-2018)“…Accurate measurement of the thermal temperature in inertially confined fusion plasmas is essential for characterizing ignition performance and validating the…”
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Observation of megagauss-field topology changes due to magnetic reconnection in laser-produced plasmas
Published in Physical review letters (03-08-2007)“…The spatial structure and temporal evolution of megagauss magnetic fields generated by interactions of up to 4 laser beams with matter were studied with an…”
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Improved Performance of High Areal Density Indirect Drive Implosions at the National Ignition Facility using a Four-Shock Adiabat Shaped Drive
Published in Physical review letters (01-09-2015)“…Hydrodynamic instabilities can cause capsule defects and other perturbations to grow and degrade implosion performance in ignition experiments at the National…”
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20
Probing warm dense lithium by inelastic X-ray scattering
Published in Nature physics (01-12-2008)“…One of the grand challenges of contemporary physics is understanding strongly interacting quantum systems comprising such diverse examples as ultracold atoms…”
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