R
Raymond W. Lemke
Researcher at Sandia National Laboratories
Publications - 145
Citations - 4409
Raymond W. Lemke is an academic researcher from Sandia National Laboratories. The author has contributed to research in topics: Z-pinch & Implosion. The author has an hindex of 40, co-authored 144 publications receiving 3977 citations.
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Journal ArticleDOI
Pulsed-power-driven high energy density physics and inertial confinement fusion research
M. Keith Matzen,M. A. Sweeney,R. G. Adams,James R. Asay,James E. Bailey,Guy R. Bennett,David E. Bliss,D.D. Bloomquist,Thomas A. Brunner,R. B. Campbell,Gordon A. Chandler,Christine Anne Coverdale,M. E. Cuneo,J.-P. Davis,C. Deeney,Michael P. Desjarlais,G. L. Donovan,Christopher Joseph Garasi,Thomas A. Haill,C.A. Hall,David Lester Hanson,M. J. Hurst,Brent Manley Jones,Marcus D. Knudson,R. J. Leeper,Raymond W. Lemke,Michael G. Mazarakis,Dillon H. McDaniel,Thomas Alan Mehlhorn,Thomas J. Nash,Craig L. Olson,John L. Porter,Patrick K. Rambo,S.E. Rosenthal,Gregory Rochau,L. E. Ruggles,Chimpén Ruiz,T. W. L. Sanford,J. F. Seamen,D.B. Sinars,S. A. Slutz,Ian C. Smith,Kenneth W. Struve,William A. Stygar,Roger Alan Vesey,E.A. Weinbrecht,David Franklin Wenger,Edmund Yu +47 more
TL;DR: The Z accelerator at Sandia National Laboratories delivers ∼20MA load currents to create high magnetic fields (>1000T) and high pressures (megabar to gigabar) in a z-pinch configuration, the magnetic pressure supersonically implodes a plasma created from a cylindrical wire array, which at stagnation typically generates a plasma with energy densities of about 10MJ∕cm3 and temperatures >1keV at 0.1% of solid density as mentioned in this paper.
Journal ArticleDOI
Direct observation of an abrupt insulator-to-metal transition in dense liquid deuterium
Marcus D. Knudson,Michael P. Desjarlais,Andreas Becker,Raymond W. Lemke,Kyle Robert Cochrane,Mark E. Savage,David E. Bliss,Thomas R. Mattsson,Ronald Redmer +8 more
TL;DR: In this paper, the authors show direct observation of an abrupt insulator-to-metal transition in dense liquid deuterium, which may constrain the region of hydrogen-helium immiscibility and the boundary layer pressure in standard models of the internal structure of gas-giant planets.
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Investigation of a load-limited, magnetically insulated transmission line oscillator (MILO)
TL;DR: In this article, a load-limited MILO with an RF choke is used for the upstream boundary to obtain gigawatt-level output power in both experiments and numerical simulations, results of which are also presented.
Journal ArticleDOI
Probing the interiors of the ice giants: shock compression of water to 700 GPa and 3.8 g/cm³.
Marcus D. Knudson,Michael P. Desjarlais,Raymond W. Lemke,Thomas R. Mattsson,Martin French,Nadine Nettelmann,Ronald Redmer +6 more
TL;DR: In this article, the authors present shock compression data for water with unprecedented accuracy that show that water equations of state commonly used in planetary modeling significantly overestimate the compressibility at conditions relevant to planetary interiors.
Journal ArticleDOI
Magnetically Driven Implosions for Inertial Confinement Fusion at Sandia National Laboratories
M. E. Cuneo,Mark Herrmann,Daniel Sinars,S. A. Slutz,William A. Stygar,Roger Alan Vesey,Adam B Sefkow,Gregory Rochau,Gordon A. Chandler,James E. Bailey,John L. Porter,Ryan D. McBride,Dean C. Rovang,Michael G. Mazarakis,Edmund Yu,Derek C. Lamppa,Kyle Peterson,Charles Nakhleh,Stephanie Hansen,A. J. Lopez,Mark E. Savage,Christopher Jennings,Matthew Martin,Raymond W. Lemke,Briggs W. Atherton,Ian C. Smith,P. K. Rambo,Michael Jones,M. R. Lopez,P. J. Christenson,M. A. Sweeney,Brent Manley Jones,L. A. McPherson,Eric Harding,Matthew R. Gomez,Patrick Knapp,Thomas James Awe,R. J. Leeper,Carlos L. Ruiz,Gary Wayne Cooper,Kelly Hahn,John Lee McKenney,Albert Carter Owen,G. R. McKee,G. T. Leifeste,D. J. Ampleford,Eduardo Waisman,A. J. Harvey-Thompson,R. J. Kaye,M. H. Hess,S. E. Rosenthal,M. K. Matzen +51 more
TL;DR: The magnetized liners inertial fusion (MagLIF) concept was introduced by Slutz and Vesey as mentioned in this paper, which is in the class of magneto-inertial fusion targets.