Search Results - "Delettrez, J.A."
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Progress in the shock-ignition inertial confinement fusion concept
Published in EPJ Web of conferences (01-01-2013)“…Shock-ignition experiments with peak laser intensities of ~8 x 10 super(15) W/cm super(2) were performed. D sub(2)-filled plastic shells were compressed on a…”
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Proton Radiography of Inertial Fusion Implosions
Published in Science (American Association for the Advancement of Science) (29-02-2008)“…A distinctive way of quantitatively imaging inertial fusion implosions has resulted in the characterization of two different types of electromagnetic…”
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Role of hot-electron preheating in the compression of direct-drive imploding targets with cryogenic D2 ablators
Published in Physical review letters (09-05-2008)“…The compression of direct-drive, spherical implosions is studied using cryogenic D2 targets on the 60-beam, 351-nm OMEGA laser with intensities ranging from…”
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Time-dependent electron thermal flux inhibition in direct-drive laser implosions
Published in Physical review letters (29-08-2003)“…We simulate direct-drive CH target implosions with square laser pulses by a one-dimensional Fokker-Planck solver combined with a hydrodynamic code, and compare…”
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Fourier-space nonlinear Rayleigh-Taylor growth measurements of 3D laser-imprinted modulations in planar targets
Published in Physical review letters (18-11-2005)“…Nonlinear growth of 3D broadband nonuniformities was measured near saturation levels using x-ray radiography in planar foils accelerated by laser light. The…”
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A direct-drive exploding-pusher implosion as the first step in development of a monoenergetic charged-particle backlighting platform at the National Ignition Facility
Published in High energy density physics (01-03-2016)“…A thin-glass-shell, D3He-filled exploding-pusher inertial confinement fusion implosion at the National Ignition Facility (NIF) has been demonstrated as a…”
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Multibeam effects on fast-electron generation from two-plasmon-decay instability
Published in Physical review letters (13-06-2003)“…Experiments with multiple laser beams have been carried out in both spherical and planar geometry to study two-plasmon-decay instability, the predominant…”
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Observation of self-similar behavior of the 3D, nonlinear Rayleigh-Taylor instability
Published in Physical review letters (31-12-2005)“…The Rayleigh-Taylor unstable growth of laser-seeded, 3D broadband perturbations was experimentally measured in the laser-accelerated, planar plastic foils. The…”
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Argon K-shell and bound-free emission from OMEGA direct-drive implosion cores
Published in High energy density physics (2010)“…We discuss calculations of synthetic spectra for the interpretation and analysis of K-shell and bound-free emission from argon-doped deuterium-filled OMEGA…”
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Effects of nonuniform illumination on implosion asymmetry in direct-drive inertial confinement fusion
Published in Physical review letters (21-05-2004)“…Target areal density (rhoR) asymmetries in OMEGA direct-drive spherical implosions are studied. The rms variation / for low-mode-number structure is…”
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Spectroscopic observations of Fermi-degenerate aluminum compressed and heated to four times solid density and 20 eV
Published in High energy density physics (01-12-2011)“…Shock waves generated by temporally shaped laser ablation compressed and heated Al to ρ = 11 ± 5 g/cm 3 and 20 ± 2 eV. The inferred density and temperature…”
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Dependence of shell mix on feedthrough in direct drive inertial confinement fusion
Published in Physical review letters (07-05-2004)“…The mixing of cold, high-density shell plasma with the low-density, hot spot plasma by the Rayleigh-Taylor instability in inertial confinement fusion is…”
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Applied plasma spectroscopy: Laser-fusion experiments
Published in High energy density physics (01-12-2009)“…High-energy-density plasmas created in laser-fusion experiments are diagnosed with X-ray spectroscopy. Hans Griem, considered the father of modern plasma…”
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Multi-objective spectroscopic analysis of core gradients: Extension from two to three objectives
Published in Journal of quantitative spectroscopy & radiative transfer (01-05-2006)“…We discuss a three-objective search and reconstruction method for the extraction of spatial structure information from argon-doped implosion cores based on the…”
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Progress in direct-drive inertial confinement fusion
Published in EPJ Web of conferences (01-01-2013)“…Significant progress has been made in direct-drive inertial confinement fusion research at the Laboratory for Laser Energetics since the 2009 IFSA Conference…”
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Saturation of the Rayleigh-Taylor Growth of Broad-Bandwidth Laser-Imposed Nonuniformities in Planar Targets
Published in Physical review letters (01-12-1998)Get full text
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Development of spectroscopic tools for the determination of temperature and density spatial profiles in implosion cores
Published in High energy density physics (01-05-2007)“…Two innovative spectroscopic techniques have been developed to characterize the temperature and density spatial profiles of Inertial Confinement Fusion (ICF)…”
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Time-resolved areal-density measurements with proton spectroscopy in spherical implosions
Published in Physical review letters (04-04-2003)“…The temporal history of the target areal-density near peak compression of direct-drive spherical target implosions has been inferred with 14.7-MeV…”
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Investigation of Mixing Effects on Spectroscopic Data analysis of Implosion Core Gradient Structure
Published in IEEE Conference Record - Abstracts. 2005 IEEE International Conference on Plasma Science (01-06-2005)“…Summary form only given. Recent spectroscopic analysis, based on image intensity distributions and line spectra of a series of indirect-drive inertial…”
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Conference Proceeding -
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Direct-Drive Inertial Confinement Fusion Implosions on Omega
Published in Astrophysics and space science (01-06-2005)“…Direct-drive inertial confinement fusion (ICF) creates extreme states of matter. In current direct-drive cryogenic target implosions on the 60-beam OMEGA laser…”
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