Zobrazeno 1 - 10
of 58
pro vyhledávání: '"Dmitry A. Fedin"'
Autor:
G. C. Osborne, A. L. Velikovich, John Greenly, V.L. Kantsyrev, Ryan D. McBride, J. D. Douglass, K. Williamson, Alla S. Safronova, David Hammer, L.M. Maxson, Andrey Esaulov, N.D. Ouart, Vidya Nalajala, Dmitry A. Fedin, M.F. Yilmaz
Publikováno v:
IEEE Transactions on Plasma Science. 34:2288-2294
Implosion characteristics of cylindrical arrays of aluminum (Al) or tungsten (W) wires with low number of wires were studied on the 1-MA 100-150-ns current rise time COBRA generator at Cornell University using X-ray/extreme ultraviolet detectors, tim
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9891e1e3334efb060863074b6b104605
https://doi.org/10.1109/tps.2006.883376
https://doi.org/10.1109/tps.2006.883376
Autor:
V.I. Sotnikov, B. Le Galloudec, A. L. Astanovitskiy, C. Deeney, Ishor Shrestha, Paul David LePell, G. S. Sarkisov, Brent Manley Jones, Thomas E. Cowan, V.L. Kantsyrev, Vidya Nalajala, Dmitry A. Fedin, Christine Anne Coverdale, P.J. Laca, V. V. Ivanov, Kenneth W. Struve
Publikováno v:
IEEE Transactions on Plasma Science. 34:2247-2255
A Faraday rotation diagnostic was applied for the investigation of magnetic fields in plasma of 1-MA wire arrays and X-pinches. Laser-probing diagnostics at the Zebra generator include a four-channel polarointerferometer and a four-frame shadowgraphy
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::23bcef05750ec57fb07b9e64be1523db
https://doi.org/10.1109/tps.2006.877693
https://doi.org/10.1109/tps.2006.877693
Spectroscopic modeling of radiation from Cu and Mo X-pinches produced on the UNR 1MA Zebra generator
Autor:
Victor L. Kantsyrev, Stephanie Hansen, S. Batie, Christopher Deeney, S. Pokala, Paul David LePell, B. LeGalloudec, A. Astanovitsky, Ishor Shrestha, F. Yilmaz, Brent Manley Jones, Vidya Nalajala, Christine Anne Coverdale, D. O. Jobe, Alla S. Safronova, Dmitry A. Fedin, D. Brown, Thomas E. Cowan, N.D. Ouart, D. Nielson
Publikováno v:
Journal of Quantitative Spectroscopy and Radiative Transfer. 99:560-571
X-pinches are a source for studying radiative properties of plasmas of very small sizes, high densities and temperatures applicable to high-energy density plasmas such as dense Z-pinches. Recently, spatially resolved and spatially integrated X-ray sp
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6070b079164a0f0f43ca0318ae388751
https://doi.org/10.1016/j.jqsrt.2005.05.045
https://doi.org/10.1016/j.jqsrt.2005.05.045
Autor:
Christopher Deeney, Thomas E. Cowan, N.D. Ouart, F. Yilmaz, A. Astanovitsky, M. Johnson, S. Pokala, D. O. Jobe, S. Batie, Christine Anne Coverdale, A. Clinton, D. Nielson, Roberto Mancini, Vidya Nalajala, Victor L. Kantsyrev, Paul David LePell, Alla S. Safronova, V. V. Ivanov, B. LeGalloudec, D. Brown, Brent Manley Jones, Dmitry A. Fedin, Ishor Shrestha
Publikováno v:
Journal of Quantitative Spectroscopy and Radiative Transfer. 99:349-362
Experimental results of studies of the 1 MA X-pinch X-ray source in a wide spectral region are overviewed. Implosion dynamics and radiative properties of various X-pinches were studied by spatially and time-resolved X-ray and optical diagnostics. In
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::50f489a2f4c6694232bff0041e89ae8b
https://doi.org/10.1016/j.jqsrt.2005.05.028
https://doi.org/10.1016/j.jqsrt.2005.05.028
Autor:
Brent Manley Jones, M.F. Yilmaz, Vidya Nalajala, Alla S. Safronova, V. V. Ivanov, Ishor Shrestha, Leonid Rudakov, S. Pokala, P.J. Laca, K. Williamson, Christine Anne Coverdale, Andrey Esaulov, Dmitry A. Fedin, Paul David LePell, Alexandre S. Chuvatin, C. Deeney, Thomas E. Cowan, N.D. Ouart, Alexander L. Velikovich, Victor L. Kantsyrev
Publikováno v:
IEEE Transactions on Plasma Science. 34:194-212
In the following experiments, we studied implosions of different wire arrays and X-pinches produced on the 1-MA Zebra generator at the University of Nevada, Reno. Diagnostics included both spatially-resolved and time-gated X-ray imaging and spectrosc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e7bce322087fefdd73de04cb43fc663b
https://doi.org/10.1109/tps.2006.872173
https://doi.org/10.1109/tps.2006.872173
Autor:
Alla S. Shlyaptseva, V.L. Kantsyrev, N.D. Ouart, D. Chamberlain, Dmitry A. Fedin, Stephanie B. Hansen
Publikováno v:
Review of Scientific Instruments. 74:1935-1938
The presence of collimated 1.5–2.0 MeV electron beams in 0.9–1.0 MA high-Z X-pinch plasmas leads to the generation of an anisotropic hard x-ray radiation (more than 50–100 keV) in the crossing point of the wires, with a 1–2 mm size source and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6273e9f4cd59f8e5d33e8ff9eab82ac7
https://doi.org/10.1063/1.1535274
https://doi.org/10.1063/1.1535274
Autor:
Alla S. Shlyaptseva, V.L. Kantsyrev, N.D. Ouart, K. B. Fournier, Stephanie B. Hansen, U. I. Safronova, Dmitry A. Fedin
Publikováno v:
Review of Scientific Instruments. 74:1943-1946
The University of Nevada, Reno has developed a collisional-radiative atomic kinetics model that has successfully described the spectra produced by widely different multicharged ion experiments. The application of the model to experiments that highlig
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2db44cf24e97d721719bde86cbfc259a
https://doi.org/10.1063/1.1535276
https://doi.org/10.1063/1.1535276
Publikováno v:
Review of Scientific Instruments. 74:1939-1942
The complex measurements with spectral, temporal, and spatial resolution are very important in studies of properties of radiation from hot dense plasmas (Te up to 1.5 keV, Ne up to 1022 cm−3) generated by a pulse-powered Z-pinch machine with Imax
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c29868966299dac84e777697715bb8f1
https://doi.org/10.1063/1.1535275
https://doi.org/10.1063/1.1535275
Autor:
U. I. Safronova, P. Beiersdorfer, Paul Neill, Stephanie B. Hansen, V.L. Kantsyrev, Alla S. Shlyaptseva, C. L. Harris, Dmitry A. Fedin, Safeia Hamasha, N.D. Ouart
Publikováno v:
Review of Scientific Instruments. 74:1947-1950
X-ray spectra of high energy density (HED) Z-pinch plasmas have been analyzed by means of a comprehensive kinetic modeling. A new diagnostic, x-ray spectropolarimetry, was applied to study anisotropy of Z-pinch plasma. This diagnostic is based on the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::37895380e218b3b50e1cedaca3cd3bc5
https://doi.org/10.1063/1.1535277
https://doi.org/10.1063/1.1535277
Autor:
V.L. Kantsyrev, N.D. Ouart, Alla S. Shlyaptseva, Stephanie Hansen, A. G. Petrashen, B. S. Bauer, Dmitry A. Fedin, S. A. Kazantsev, Ulyana Safronova
Publikováno v:
Review of Scientific Instruments. 72:1241-1244
X-ray spectropolarimetry is a powerful new tool for investigating the anisotropy of high-temperature plasmas. It is sensitive to the energetic electron distribution function and magnetic field, which, in general, have not been measured adequately. Th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4cd9404f16369ad18dcf1b2586511d64
https://doi.org/10.1063/1.1324752
https://doi.org/10.1063/1.1324752