Výsledky vyhledávání - "L. V. Powers"

Observation of reduced beam deflection using smoothed beams in gas-filled hohlraum symmetry experiments at Nova

Autor: Robert L. Kauffman, Allan Hauer, L. V. Powers, J. B. Moore, G. Glendinning, B. A. Hammel, Otto Landen, A. L. Richard, E. L. Lindman, Thomas J. Murphy, N. D. Delamater, L. J. Suter, Robert R. Peterson, Glenn R. Magelssen, V. M. Gomez, B. H. Failor, P. L. Gobby, K. Gifford, S. N. Dixit

Publikováno v: Scopus-Elsevier

Execution and modeling of drive symmetry experiments in gas-filled hohlraums have been pursued to provide both a better understanding of radiation symmetry in such hohlraums and to verify the accuracy of the design tools which are used to predict tar

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cf0ea9fd7e8efef6d4761f06cb1e18df
https://doi.org/10.1063/1.873982

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Strongly driven laser-plasma coupling

Autor: L. J. Suter, William L. Kruer, C. Decker, Scott Wilks, L. V. Powers, T. J. Orzechowski, E. M. Campbell, B. B. Afeyan, J. D. Moody, N. Dague

Publikováno v: Plasma Physics and Controlled Fusion. 41:A409-A417

An improved understanding of strongly driven laser-plasma coupling is important for optimal use of the National Ignition Facility (NIF) for both inertial fusion and for a variety of advanced applications. Such applications range from high-energy x-ra

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::9bc41d889b1771b382eec9c3179e0734
https://doi.org/10.1088/0741-3335/41/3a/033

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Electron-density measurements in hohlraums using soft-x-ray deflectometry

Autor: J. A. Harte, C. Decker, R. A. London, James E. Trebes, L. V. Powers

Publikováno v: Physical Review E. 57:5952-5957

This paper presents design calculations for experiments that measure electron densities of laser heated hohlraums with soft-x-ray moir{acute e} deflectometry. Hydrodynamical simulations of the hohlraums are analyzed to obtain deflection angles of the

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a3b8d84420a6665e993a5d662565545c
https://doi.org/10.1103/physreve.57.5952

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Improved gas-filled hohlraum performance on Nova with beam smoothing

Autor: J. D. Moody, Deanna Marie Pennington, R. K. Kirkwood, Siegfried Glenzer, M. A. Blain, S. G. Glendinning, Timothy L. Weiland, Robert L. Kauffman, Gary Stone, R. E. Turner, S. N. Dixit, L. J. Suter, T. J. Orzechowski, B. J. MacGowan, Otto Landen, A. L. Richard, L. V. Powers

Publikováno v: Physics of Plasmas. 5:1927-1934

Gas-filled hohlraums are presently the base line ignition target design for the National Ignition Facility. Initial Nova [E. M. Campbell et al. Rev. Sci. Instrum. 57, 2101 (1986).] experiments on gas-filled hohlraums showed that radiation temperature

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::8d538cf6b8fe5c9f52a56911f8fadf26
https://doi.org/10.1063/1.872822

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Propagation of realistic beams in underdense plasma

Autor: A. B. Langdon, Richard Berger, E. A. Williams, L. V. Powers, Denise Hinkel, Charles H. Still

Publikováno v: Physics of Plasmas. 5:1887-1894

The effect of beam structure on propagation through underdense plasma is examined in two different examples. First, it is shown that the distribution of intensities within a laser beam affects how the beam deflects in the presence of transverse plasm

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::4d0dc5f55e4356a7ab24882ce17ee44a
https://doi.org/10.1063/1.872859

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Isoelectronic x-ray spectroscopy to determine electron temperatures in long-scale-length inertial-confinement-fusion plasmas

Autor: Robert L. Kauffman, B. J. MacGowan, D. E. Klem, Christopher J. Keane, B. H. Failor, L. V. Powers, L. J. Suter, T. D. Shepard, W. W. Hsing, Christina Back, Daniel H. Kalantar, Robert Turner, Barbara F. Lasinski

Publikováno v: Physical Review E. 53:5291-5301

We have successfully employed isoelectronic line ratios to measure the electron temperature in gas-filled Hohlraum targets and gas bags shot with the Nova laser. These targets produce millimeter-scale-length plasmas with electron density ${\mathit{N}

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ffb92ad2717fe377c753aa5ea5994308
https://doi.org/10.1103/physreve.53.5291

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Symmetry experiments in gas‐filled hohlraums at NOVA

Publikováno v: Physics of Plasmas. 3:2022-2028

Understanding drive symmetry in gas‐filled hohlraums is currently of interest because the baseline design of the indirect drive ignition target for the planned National Ignition Facility uses a gas‐filled hohlraum. This paper reports on the resul

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::cb172feffe21a32da7a3a2f687df20a4
https://doi.org/10.1063/1.871999

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Use of large scale-length plasmas to study parametric plasma instabilities

Autor: Robert L. Kauffman, Christopher J. Keane, L. V. Powers, Daniel H. Kalantar, R. G. Hockaday, B. J. MacGowan, D. E. Klem, B. H. Failor, Richard Berger, J. D. Moody, T. D. Shepard, E.J. Hsieh, W. W. Hsing, Robert Turner, Gary Stone, L. J. Suter, Kent Estabrook, D. S. Montgomery, Christina Back

Publikováno v: Journal of Quantitative Spectroscopy and Radiative Transfer. 54:27-34

Apart from their intrinsic interest, plasma physics processes are important because they affect the coupling of the laser energy into laser-irradiated targets. Recently, new gas-filled targets have been developed to create large mm-size plasmas for t

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::f9d502170c0f4c293974f2beacfc566c
https://doi.org/10.1016/0022-4073(95)00037-l

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The role of symmetry in indirect‐drive laser fusion

Publikováno v: Physics of Plasmas. 2:2488-2494

Good radiation drive symmetry will be crucial for achieving ignition in laboratory inertial fusion experiments. The indirect‐drive inertial confinement fusion (ICF) method utilizes the soft x‐ray field in a radiation‐containing cavity, or hohlr

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::3c1acf8b49700afe6bb1f6b28a556cd5
https://doi.org/10.1063/1.871210

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