Zobrazeno 1 - 10
of 83
pro vyhledávání: '"J F Seely"'
Autor:
D. A. Chin, P. M. Nilson, D. Mastrosimone, D. Guy, J. J. Ruby, D. T. Bishel, J. F. Seely, F. Coppari, Y. Ping, J. R. Rygg, G. W. Collins
Publikováno v:
Review of Scientific Instruments. 94:013101
Two extended x-ray absorption fine structure flat crystal x-ray spectrometers (EFX’s) were designed and built for high-resolution x-ray spectroscopy over a large energy range with flexible, on-shot energy dispersion calibration capabilities. The EF
Autor:
J. F. Seely
Publikováno v:
The Review of scientific instruments. 92(5)
The measurement of gigagauss magnetic fields using Zeeman broadening of Ne-like transitions in highly charged ions in high energy density plasmas is investigated. The transition in Xe44+ from the (2p51/23d3/2)J=1 level to the (2p6)J=0 ground level, d
Autor:
Katarzyna Słabkowska, N. R. Pereira, Ł. Syrocki, J. F. Seely, E. We¸der, B.V. Weber, Marek Polasik
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 408:248-252
On modest ionization, the change in the photon energies of characteristic K- and L-lines from high-Z (Z ∼ 75 ) ions can be used as an ionization diagnostic (Slabkowska et al., 2014). Indeed, the line shape of the L β 2 line in a spatially resolved
Publikováno v:
Appl Opt
A Cauchois-type spectrometer utilizing the (203) lattice planes at an oblique angle of 11.53° to the normal to the surface of a quartz transmission crystal recorded the Kα and Kβ spectral lines of six elements from Fe to Ag in the 6–22 keV energ
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::65a2b0b433b01360b2b9b86f02dff969
https://europepmc.org/articles/PMC7274499/
https://europepmc.org/articles/PMC7274499/
Autor:
Gerald Williams, J. F. Seely, Lawrence T. Hudson, C.C. Kuranz, R. P. Drake, Hui Chen, N. R. Pereira, C. A. Di Stefano, J. Park
Publikováno v:
High Energy Density Physics. 19:23-28
Experiments were performed at the LLNL Titan laser to measure the propagation direction of the energetic electrons that were generated during the interaction of the polarized laser beam with solid targets in the case of normal incidence. The energeti
Autor:
N. R. Pereira, Marek Polasik, D. G. Phipps, Katarzyna Słabkowska, E. Szymańska, J.W. Schumer, J. Rzadkiewicz, J. F. Seely, B.V. Weber, J. J. Carroll, J. R. Vanhoy
Publikováno v:
High Energy Density Physics. 9:500-504
A recent measurement [1] demonstrates that iridium's Kα2-line, centered at ≃63286.96 eV for a cold atom, increases ≃+10 eV in energy when it is emitted by a modestly (∼17×) ionized plasma. This measurement, enabled by a near-coincident luteti
Autor:
W. Manhiemer, Max Karasik, J.L. Weaver, Uri Feldman, L. Y. Chan, Y. Aglitsky, S.T. Zalesak, Victor Serlin, Andrew J. Schmitt, A. L. Velikovich, J. F. Seely, John D. Sethian, Jason Bates, Robert Lehmberg, S. P. Obenschain, Jaechul Oh, D. Kehne, Denis Colombant
Publikováno v:
Fusion Science and Technology. 64:194-200
Recent designs for laser driven, direct drive inertial confinement fusion (ICF) indicate that substantial gains (G>100) might be achieved with lower total laser energy (E~500 kJ) than previ...
Autor:
V. S. Chumak, Yu. P. Pershyn, J. F. Seely, A. Yu. Devizenko, Evgeniy N. Zubarev, V. V. Kondratenko
Publikováno v:
Journal of Nano- and Electronic Physics. 10:02032-1
Publikováno v:
Review of Scientific Instruments. 74:5076-5083
A diagnostic spectrometer has been developed at the Naval Research Laboratory to measure the time resolved absolute intensity of radiation emitted from targets irradiated by the Nike laser. The spectrometer consists of a dispersive transmission grati
Autor:
J. F. Seely, Thomas E. Cowan, S. P. Hatchett, Richard B. Stephens, Charles M. Brown, Yefim Aglitskiy, J. A. Koch, M. H. Key, Glenn E. Holland, Richard R. Freeman, A. J. Mackinnon, R. A. Snavely
Publikováno v:
Review of Scientific Instruments. 74:2130-2135
We have used spherically-bent quartz 203 and 211 crystals to image 4.5- and 8-keV sources in both emission and absorption geometries. These imaging systems are straightforward to align, provide high throughput, and can provide high spatial resolution