Zobrazeno 1 - 10
of 56
pro vyhledávání: '"Frederick J. Wysocki"'
Publikováno v:
SIAM/ASA Journal on Uncertainty Quantification. 7:604-633
Scientists often predict physical outcomes, e.g., experimental results, with the assistance of computer codes that, at their best, only coarsely approximate reality. Coarse predictions are challeng...
Autor:
Frederick J. Wysocki, S. A. Yi, B. Cheng, Thomas J. T. Kwan, C. J. Cerjan, Otto Landen, Yi-Ming Wang, Steven H. Batha
Publikováno v:
Physical review. E. 98(2-1)
Asymmetric implosion of inertial confinement fusion capsules is known, both experimentally and computationally, to reduce thermonuclear performance. This work shows that low-mode asymmetries degrade performance as a result of a decrease in the hydrod
Autor:
D.T. Michel, Peter Hakel, Christian Stoeckl, R. C. Shah, K. Silverstein, Roberto Mancini, J F Benage, F. J. Marshall, Thomas J. Murphy, M. Hoppe, B. Yaakobi, M. Schoff, J. Fooks, Igor V. Igumenshchev, Brian Haines, Frederick J. Wysocki, V. Y. Glebov, Grigory Kagan
Publikováno v:
Physical Review Letters. 118
We present narrow-band self-emission x-ray images from a titanium tracer layer placed at the fuel-shell interface in 60-laser-beam implosion experiments at the OMEGA facility. The images are acquired during deceleration with inferred convergences of
Publikováno v:
Plasma Physics and Controlled Fusion. 60:074011
Autor:
B Vigil, B.R. Haberle, John F. Benage, B Graden, Frederick J. Wysocki, Michael S. Murillo, R.P. Shurter, J. M. Taccetti, J.P. Roberts
Publikováno v:
Journal of Physics A: Mathematical and General. 39:4347-4351
We present the most recent results from an experiment aimed at obtaining the temperature equilibration rate between ions and electrons in a strongly coupled plasma by directly measuring the temperature of each component. The plasma is formed by heati
Publikováno v:
Journal of Physics A: Mathematical and General. 36:5981-5989
Anomalous broadening of ion-acoustic modes has been observed using collective Thomson scattering from both the electron plasma and ion-acoustic waves in ion-collisional plasmas. Ion-acoustic waves may be broadened by Landau damping, plasma inhomogene
Autor:
J. Martin Taccetti, Thomas P. Intrator, James H. Degnan, Katherine C. Forman, Frederick J. Wysocki, D.G. Gale, Sean K. Coffey
Publikováno v:
Fusion Science and Technology. 41:13-23
Two experiments showing continuous, real-time measurements of the radial convergence of a high-aspect-ratio aluminum flux conserver are presented. These results were obtained by measuring the compression of both axial and radial components of an inte
Autor:
Ian L. Tregillis, T. Joshi, James A. Cobble, Rahul Shah, Thomas J. Murphy, Roberto Mancini, Mark J. Schmitt, Daniel Mayes, Paul A. Bradley, Peter Hakel, Natalia Krasheninnikova, J. A. Baumgaertel, Frederick J. Wysocki, Taisuke Nagayama, H. M. Johns, Scott Hsu
We present spatially, temporally, and spectrally resolved narrow- and broad-band x-ray images of polar-direct-drive (PDD) implosions on OMEGA. These self-emission images were obtained during the deceleration phase and bang time using several multiple
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5c666b1a4760a31c6ade2208b6b03c85
Publikováno v:
Physics of Plasmas. 23:120702
We demonstrate the effect of preheat, hydrodynamic mix and vorticity on the adiabat of the deuterium-tritium (DT) fuel in fusion capsule experiments. We show that the adiabat of the DT fuel increases resulting from hydrodynamic mixing due to the phen
Autor:
Richard E. Siemon, Frederick J. Wysocki, G. A. Wurden, James H. Degnan, Michael H. Frese, J.S. Shlachter, Ronald W. Moses, Tom Intrator, W. Sommars, R.E. Peterkin, F.M. Lehr, Irvin R. Lindemuth, D. A. Clark, Ronald C. Kirkpatrick, J.D. Letterio, J.C. Gueits, W. F. McCullough, T. Cavazos, D. Fulton, D. Gale, J. M. Taccetti, Peter J. Turchi, Edward L. Ruden, G. Kiuttu, Thomas W. Hussey, R.J. Faehl, Norman F. Roderick, Robert E. Reinovsky, Kurt F. Schoenberg, Sean K. Coffey
Publikováno v:
IEEE Transactions on Plasma Science. 29:93-98
The design and first successful demonstration of an imploding solid liner with height to diameter ratio, radial convergence, and uniformity suitable for compressing a field reversed configuration is discussed. Radiographs indicated a very symmetric i