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10篇 您的检索式:作者名="Kuranz"
    题名 作者 年代 出处 被引量
1查看详情显示文摘Kuranz C C Blue B E Drake R P Robey H F Hansen J F Knauer J P Grosskopf M J Krauland C Marion D C 0,,:1
2Development of a short duration baeklit pinhole for radiography on the National Igni- tion Facility显示文摘Huntington C M Krauland C M Kuranz C C 2010Review of Scientific Instruments2010,81,10:1
3First radiative shock experiments on the SG-II laser显示文摘We report on the design and first results from experiments looking at the formation of radiative shocks on the ShenguangII(SG-II)laser at the Shanghai Institute of Optics and Fine Mechanics in China.Laser-heating of a two-layer CH/CH–Br foil drives a∼40 km/s shock inside a gas cell filled with argon at an initial pressure of 1 bar.The use of gas-cell targets with large(several millimetres)lateral and axial extent allows the shock to propagate freely without any wall interactions,and permits a large field of view to image single and colliding counter-propagating shocks with time-resolved,pointprojection X-ray backlighting(∼20µm source size,4.3 keV photon energy).Single shocks were imaged up to 100 ns after the onset of the laser drive,allowing to probe the growth of spatial nonuniformities in the shock apex.These results are compared with experiments looking at counter-propagating shocks,showing a symmetric drive that leads to a collision and stagnation from∼40 ns onward.We present a preliminary comparison with numerical simulations with the radiation hydrodynamics code ARWEN,which provides expected plasma parameters for the design of future experiments in this facility.Francisco Suzuki-Vidal Thomas Clayson Chantal Stehlé Uddhab Chaulagain Jack W.D.Halliday Mingying Sun Lei Ren Ning Kang Huiya Liu Baoqiang Zhu Jianqiang Zhu Carolina De Almeida Rossi Teodora Mihailescu Pedro Velarde Manuel Cotelo John M.Foster Colin N.Danson Christopher Spindloe Jeremy P.Chittenden Carolyn Kuranz 2021High Power Laser Science and Engineering2021,9,2:1
4Problematic substance use in urban adolescents: role of intrauterine exposures to cocaine and marijuana and post-natal environment显示文摘Frank DA Kuranz S Appugliese D 2014Drug Alcohol Depend2014,142,:1
5Imaging scattered X-ray radiation for measurement of local electron density in high-energy-density experiments显示文摘Huntington CM KraulCM Kuranz CC 2010High Energy Density Physics2010,6,:1
6Dual, orthogonal, backlit pinhole radiography in OMEGA experiments显示文摘Kuranz C C Blue B E Drake R P 2006Rev Sci Instrum2006,77,10:1
7Using the ROSS optical streak camera as a tool to understand laboratory experiments of laser-driven magnetized shock waves显示文摘Supersonic flows with high Mach number are ubiquitous in astrophysics. High-powered lasers also have the ability to drive high Mach number, radiating shock waves in laboratory plasmas, and recent experiments along these lines have made it possible to recreate analogs of high Mach-number astrophysical flows under controlled conditions. Streak cameras such as the Rochester optical streak system(ROSS) are particularly helpful in diagnosing such experiments,because they acquire spatially resolved measurements of the radiating gas continuously over a large time interval,making it easy to observe how any shock waves and ablation fronts present in the system evolve with time. This paper summarizes new ROSS observations of a laboratory analog of the collision of a stellar wind with an ablating planetary atmosphere embedded within a magnetosphere. We find good agreement between the observed ROSS data and numerical models obtained with the FLASH code, but only when the effects of optical depth are properly taken into account.Andy Liao Patrick Hartigan Gennady Fiksel Brent Blue Peter Graham John Foster Carolyn Kuranz 2018High Power Laser Science and Engineering2018,6,2:0
8Conceptual design of an experiment to study dust destruction by astrophysical shock waves显示文摘A novel laboratory experimental design is described that will investigate the processing of dust grains in astrophysical shocks. Dust is a ubiquitous ingredient in the interstellar medium(ISM) of galaxies; however, its evolutionary cycle is still poorly understood. Especially shrouded in mystery is the efficiency of grain destruction by astrophysical shocks generated by expanding supernova remnants. While the evolution of these remnants is fairly well understood, the grain destruction efficiency in these shocks is largely unknown. The experiments described herein will fill this knowledge gap by studying the dust destruction efficiencies for shock velocities in the range ~10–30 km/s(μm/ns), at which most of the grain destruction and processing in the ISM takes place. The experiments focus on the study of grain–grain collisions by accelerating small(~1 μm) dust particles into a large(~5–10 μm diameter) population; this simulates the astrophysical system well in that the more numerous, small grains impact and collide with the large population. Facilities that combine the versatility of high-power optical lasers with the diagnostic capabilities of X-ray free-electron lasers, e.g., the Matter in Extreme Conditions instrument at the SLAC National Accelerator Laboratory, provide an ideal laboratory environment to create and diagnose dust destruction by astrophysically relevant shocks at the micron scale.M. J.-E. Manuel T. Temim E. Dwek A. M. Angulo E X. Belancourt R. E Drake C. C. Kuranz M. J. MacDonald B. A. Remington 2018High Power Laser Science and Engineering2018,6,3:0
9Experimental platform for the investigation of magnetized-reverse-shock dynamics in the context of POLAR显示文摘The influence of a strong external magnetic field on the collimation of a high Mach number plasma flow and its collision with a solid obstacle is investigated experimentally and numerically. The laser irradiation(I ~ 2 × 10^(14) W · cm^(-2)) of a multilayer target generates a shock wave that produces a rear side plasma expanding flow. Immersed in a homogeneous10 T external magnetic field, this plasma flow propagates in vacuum and impacts an obstacle located a few mm from the main target. A reverse shock is then formed with typical velocities of the order of 15–20 ± 5 km/s. The experimental results are compared with 2 D radiative magnetohydrodynamic simulations using the FLASH code. This platform allows investigating the dynamics of reverse shock, mimicking the processes occurring in a cataclysmic variable of polar type.B. Albertazzi E. Falize A. Pelka E Brack E Kroll R. Yurchak E. Brambrink E Mabey N. Ozaki S. Pikuz L. Van Box Som J. M. Bonnet-Bidaud J. E. Cross E. Filippov G. Gregori R. Kodama M. Mouchet T. Morita Y. Sakawa R. E Drake C. C. Kuranz M. J.-E. Manuel C. Li E Tzeferacos D. Lamb U. Schramm M. Koenig 2018High Power Laser Science and Engineering2018,6,3:0
10Editorial review of HPLSE special issue on laboratory astrophysics显示文摘In 2018 the journal High Power Laser Science and Engineering produced a Special Issue on Laboratory Astrophysics.The scope of the special issue was to span the latest research and reviews on the following topics related to laboratory astrophysics and related phenomena.The topics invited for inclusion were:·collisionless shocks;·planetary formation dynamics and planetary interiors;·warm dense matter;·hydrodynamic and magnetohydrodynamic instabilities;·magnetic reconnection;·relativistic plasmas;·magnetic turbulence and magnetic amplification;·nuclear astrophysics;·radiative transfer and radiation hydrodynamics;·target design;·laser-based HED facilities.although this was not meant as an exhaustive list.As is usual with a special issue of this type Guest Editors were invited to lead in sourcing articles.Francisco Suzuki-Vidal Yutong Li Carolyn Kuranz Colin Danson 2019High Power Laser Science and Engineering2019,7,1:0
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