Zobrazeno 1 - 10
of 12
pro vyhledávání: '"L W Hrubesh"'
Autor:
Mark S. Derzon, D. D. Ryutov, L. W. Hrubesh, D. O. Jobe, G. O. Allshouse, Thomas J. Nash, S. E. Lazier, T. L. Barber, T. L. Gilliland, M. J. Hurst, A. J. Antolak, Joseph J. MacFarlane, J. S. McGurn, D. J. Muron, H. Lewis, C. Deeney, J. F. Seaman, T. Demiris
Publikováno v:
Review of Scientific Instruments. 68:848-851
Low density agar and aerogel foams were tested as z-pinch loads on the Saturn accelerator to study current flow initiation. In these first experiments, we studied the initial plasma conditions by measuring the visible emission at early times with a f
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c5046a8c1d3b20708763e619ae709d82
https://doi.org/10.1063/1.1147706
https://doi.org/10.1063/1.1147706
Autor:
L. W. Hrubesh, J. F. Poco, A. J. Antolak, H. Louis, W. F. McNamara, D. H. Morse, Mark S. Derzon, A. Demiris
Publikováno v:
Review of Scientific Instruments. 68:858-861
This article describes the fabrication and characterization of targets produced for Z-pinch physics experiments. Low density foams with densities as low as 1 mg/cc were made. Targets fabricated include 1 cm×1 cm solid cylinders of SiO2 aerogels at v
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::471d5a229500b078cc298c1fc2d638e3
https://doi.org/10.1063/1.1147708
https://doi.org/10.1063/1.1147708
Autor:
C. A. Smith, Valerie J. Leppert, Timothy J. Goodwin, Philip P. Power, Subhash H. Risbud, Mark Niemeyer, Howard W. H. Lee, L. W. Hrubesh
Publikováno v:
Applied Physics Letters. 69:3230-3232
Nanocrystals of gallium nitride were synthesized in silica aerogel host matrices by pyrolysis of dimeric dimethylgallium‐diphenylamide precursor sequestered in the nanometer scale aerogel pores. Powder x‐ray diffraction (XRD) and selected area el
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::342ad7c497386f11c69d6e05e1147d5e
https://doi.org/10.1063/1.118019
https://doi.org/10.1063/1.118019
Publikováno v:
Physical review letters. 93(5)
Continuous-wave NMR studies of 3He in the presence of 99.3% porosity silica aerogel at 34.0 bars and in a magnetic field of 28.4 mT reveal a first-order phase transition between A-like and B-like superfluid phases on both warming and cooling. NMR spe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::2b5e84f4b735825ffd0374b958656573
https://pubmed.ncbi.nlm.nih.gov/15323703
https://pubmed.ncbi.nlm.nih.gov/15323703
Autor:
R. W. Pekala, L. W. Hrubesh
Publikováno v:
Sol-Gel Processing and Applications ISBN: 9781461360988
Among their other exceptional properties, aerogels also exhibit unusual dielectric properties due to their nano-sized structures and high porosities. For example, our measurements of the dielectric constants and loss tangents for several aerogel vari
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6118a88519c8f3ded4d98b0f5d914e50
https://doi.org/10.1007/978-1-4615-2570-7_31
https://doi.org/10.1007/978-1-4615-2570-7_31
Publikováno v:
International Journal of Infrared and Millimeter Waves. 3:171-187
We report the generation of tunable far-infrared radiation by the optical pumping of potassium metal vapor to the13p Rykberg state. Subsequent cascade by stimulated emission is measured at several wavelengths between 76 and 146 cm−1 with a conversi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ceca563d486b86cebb384e7a0a85c9d3
https://doi.org/10.1007/bf01007094
https://doi.org/10.1007/bf01007094
Publikováno v:
Review of Scientific Instruments. 60:1328-1333
A unique apparatus is described for generating submicron particles of metals over a narrow‐size distribution range. Coarse particles of the metal were injected into the tail flame of an argon rf‐induction plasma torch, where they were vaporized.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8a4d433ecbebbc89e2eedcf264895e42
https://doi.org/10.1063/1.1140986
https://doi.org/10.1063/1.1140986
Publikováno v:
Instrumentation Science & Technology. 5:179-186
A computerized microwave spectrometer system is described that can compute the net microwave absorption spectra of gases at pressures greater than 1 Torr. Absorption spectra observed with this instrument at intermediate pressures for pure NH3, SO2, N
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9c88a25f6de7853c0d8e10a29505573e
https://doi.org/10.1080/10739147408543368
https://doi.org/10.1080/10739147408543368