Zobrazeno 1 - 10
of 27
pro vyhledávání: '"Stephen P. Obenschain"'
The importance of laser wavelength for driving inertial confinement fusion targets. I. Basic physics
Publikováno v:
Physics of Plasmas. 30:012701
We reinvestigate the role that laser wavelength plays in driving inertial confinement fusion (ICF) targets. Different assumptions underlie previous analytic frameworks that provide predictions for wavelength scaling of many important target parameter
Publikováno v:
Physics of Plasmas. 30:012702
We describe details of radiation-hydrodynamics simulations of directly driven targets for inertial confinement fusion using laser drivers with different laser wavelengths. Of particular interest here are comparisons of frequency-tripled glass (laser
Publikováno v:
Physics of Plasmas. 28:032704
We report results of direct-drive laser imprint experiments measuring velocity perturbation profiles of shock waves produced by the Nike krypton fluoride laser. A new high-resolution two-dimensional velocimeter system was successfully implemented on
Autor:
Andrew J. Schmitt, J.L. Weaver, Stephen P. Obenschain, Victor Serlin, Y. Aglitskiy, Max Karasik, K. R. Cochrane, Jaechul Oh, Alexander L. Velikovich
Publikováno v:
2018 IEEE International Conference on Plasma Science (ICOPS).
Absolute Hugoniot measurements for empty plastic foams at ~10% of solid polystyrene density and supporting rad-hydro simulation results are reported. Planar foam slabs, $\sim 400\mu \mathrm{m}$ thick and $\sim 500\mu \mathrm{m}$ wide, some of which w
Autor:
Stephen P. Obenschain, John D. Sethian, Matthew F. Wolford, M.C. Myers, Frank Hegeler, John Giuliani
Publikováno v:
Fusion Science and Technology. 64:179-186
The United States Naval Research Laboratory (NRL) is developing the krypton fluoride (KrF) laser technology for a direct drive laser inertial fusion energy (IFE) power plant. The overall projected ...
Autor:
Frank Hegeler, John D. Sethian, Stephen P. Obenschain, Matthew F. Wolford, Robert Lehmberg, J.L. Weaver, D. Kehne, Max Karasik
Publikováno v:
Applied optics. 54(31)
Laser fusion researchers have realized since the 1970s that the deep UV light from excimer lasers would be an advantage as a driver for robust high-performance capsule implosions for inertial confinement fusion (ICF). Most of this research has center
Autor:
Marilyn A. Brown, David Christian, Rita Bajura, Kathyrn McCarthy, Paul Denholm, David L. Greene, Stephen P. Obenschain, Gerald L. Kulcinski, John Sheffield, David Conover, Stephen O. Dean, Eldon Boes
Publikováno v:
Journal of Fusion Energy. 23:63-109
This paper summarizes the presentations and discussion at the Energy Options for the Future meeting held at the Naval Research Laboratory in March of 2004. The presentations covered the present status and future potential for coal, oil, natural gas,
Autor:
Victor Serlin, J. L. Weaver, Yefim Aglitskiy, Stephen P. Obenschain, Yu. Ralchenko, Max Karasik
Publikováno v:
2014 IEEE 41st International Conference on Plasma Sciences (ICOPS) held with 2014 IEEE International Conference on High-Power Particle Beams (BEAMS).
A detailed study of the x-ray spectra of gold has been inspired by the necessities of the National Ignition Campaign to learn more about the M-band contribution to the total energy balance inside the NIF's hohlraum. For this purpose a survey x-ray sp
Autor:
Victor Serlin, Stephen E. Bodner, Yefim Aglitskiy, C. J. Pawley, Andrew J. Schmitt, Jill P. Dahlburg, Stephen P. Obenschain, John H. Gardner
Publikováno v:
Physics of Plasmas. 5:1935-1944
FAST is a radiation transport hydrodynamics code that simulates laser matter interactions of relevance to direct-drive laser fusion target design. FAST solves the Euler equations of compressible flow using the Flux-Corrected Transport finite volume m
Autor:
James Knauer, C. P. Verdon, Robert Lehmberg, Stephen E. Bodner, Denis Colombant, Howard T. Powell, John H. Gardner, Andrew J. Schmitt, Bedros Afeyan, Lee Phillips, Stephen P. Obenschain, John D. Sethian, R. L. McCrory, W. Seka
Publikováno v:
Physics of Plasmas. 5:1901-1918
Techniques have been developed to improve the uniformity of the laser focal profile, to reduce the ablative Rayleigh–Taylor instability, and to suppress the various laser–plasma instabilities. There are now three direct-drive ignition target desi