Zobrazeno 1 - 10
of 53
pro vyhledávání: '"John I. Castor"'
Autor:
Natalie Kostinski, John E. Pask, Jim Gaffney, Hai P. Le, Richard A. London, Zachary B. Walters, Brandon Lahmann, Lin Yang, Heather D. Whitley, Joseph Nilsen, J. Pino, Charles Yeamans, Ronnie Shepherd, Andrea Kritcher, John E. Klepeis, Michael Rubery, P. W. McKenty, R. Stephen Craxton, Brent Blue, Kyle Caspersen, Marilyn Schneider, Frank Graziani, Brian Maddox, Tadashi Ogitsu, Shuai Zhang, G. Elijah Kemp, Markus Däne, Amy Lazicki, Abbas Nikroo, M. C. Marshall, Damian Swift, E. M. Garcia, C. Leland Ellison, Philip A. Sterne, Madison E. Martin, Warren Garbett, Maria Gatu-Johnson, Burkhard Militzer, John I. Castor
Publikováno v:
High Energy Density Physics. 38:100928
We examine the performance of pure boron, boron carbide, high density carbon, and boron nitride ablators in the polar direct drive exploding pusher (PDXP) platform. The platform uses the polar direct drive configuration at the National Ignition Facil
Publikováno v:
Contributions to Plasma Physics. 55:413-420
The equation of state of binary ionic mixtures of similar ions, such as nitrogen, oxygen and carbon, has been extensively studied. The study of dense asymmetric mixtures, where Z2 >> Z1, has primarily focused on mixtures of hydrogen and iron at solar
Autor:
John I. Castor, Frank Graziani, James N. Glosli, Amanda Randles, Lorin X. Benedict, Heather D. Whitley, Christian R. Scullard, Michael P. Desjarlais, David F. Richards
Publikováno v:
Contributions to Plasma Physics. 55:192-202
Here, we present a discussion of kinetic theory treatments of linear electrical and thermal transport in hydrogen plasmas, for a regime of interest to inertial confinement fusion applications. In order to assess the accuracy of one of the more involv
Autor:
John I. Castor, Peter M. Celliers, Marius Millot, Gilbert Collins, Miguel A. Morales, Heather D. Whitley, Dayne Fratanduono, David J. Erskine, Federica Coppari, Jon Eggert, J. Nilsen, Kyle Caspersen, Damian Swift, Sergei O. Kucheyev, Amy Lazicki, R. A. London
Publikováno v:
Physical Review B. 96
Using laser-generated shock waves, we have measured pressure, density, and temperature of LiH on the principal Hugoniot between 260 and 1100 GPa (2.6--11 Mbar) and on a second-shock Hugoniot up to 1400 GPa to near fivefold compression, extending the
Autor:
John I. Castor, Liam Stanton, Michael S. Murillo, Joel D. Kress, Lorin X. Benedict, Frank Graziani, Lee A. Collins, Christian R. Scullard, Ondřej Čertík, Michael P. Surh, Alfredo A. Correa
Publikováno v:
Physical review. E. 95(4-1)
We use classical molecular dynamics (MD) to study electron-ion temperature equilibration in two-component plasmas in regimes for which the presence of coupled collective modes has been predicted to substantively reduce the equilibration rate. Guided
Autor:
John I. Castor, Richard A. London
Publikováno v:
High Energy Density Physics. 9:725-730
Hot electrons created by short, intense laser pulses can heat solid density material to temperatures of order 500 eV. Inertial confinement can maintain such hot-dense plasmas for times of order 10 ps. This provides a platform for measurement of basic
Autor:
David F. Richards, Frederick H. Streitz, Paul E. Grabowski, Andreas Markmann, Saad A. Khairallah, James N. Glosli, Sophia Chen, Victor S. Batista, Heather D. Whitley, Lorin X. Benedict, Michael P. Surh, Chris Fichtl, Frank Graziani, Richard A. London, Ronnie Shepherd, Alexander Graf, Liam Krauss, Howard A. Scott, A. U. Hazi, Jon C. Weisheit, Liam Stanton, Michael S. Murillo, Hui Chen, John I. Castor, Stefan P. Hau-Riege, A. Bruce Langdon
Publikováno v:
High Energy Density Physics. 8:105-131
We describe the status of a new time-dependent simulation capability for dense plasmas. The backbone of this multi-institutional effort – the Cimarron Project – is the massively parallel molecular dynamics (MD) code “ddcMD,” developed at Lawr
Autor:
C. R. D. Brown, Sean R. Copeland, Ronnie Shepherd, Hai P. Le, Howard A. Scott, J. Pino, C. M. Krauland, R. Stephen Craxton, E. M. Garcia, Hui Chen, Brandon Lahmann, Frank Graziani, Heather D. Whitley, Maria Gatu Johnson, Warren Garbett, P. W. McKenty, Marilyn Schneider, Z. B. Walters, G. Elijah Kemp, C. Leland Ellison, Michael Rubery, Hong Sio, John I. Castor
Publikováno v:
Physics of Plasmas. 25:072710
High-intensity laser facilities, such as the National Ignition Facility (NIF), enable the experimental investigation of plasmas under extreme, high-energy-density conditions. Motivated by validating models for collisional heat-transfer processes in h
Publikováno v:
High Energy Density Physics. 5:97-104
It is shown that theoretical Rosseland mean opacities are sensitive to spectral line shape models. Due to computational constraints, however, opacity codes typically use Voigt or Lorentz profiles. Both of these profiles have an incorrect far wing beh
Autor:
Carlos A. Iglesias, Michael Purvis, John I. Castor, Jonathan Grava, Jorge Filevich, Joseph Nilsen, W. R. Johnson, Jorge J. Rocca, K. T. Cheng, James Dunn
Publikováno v:
High Energy Density Physics. 4:107-113
Over the last several years we have predicted and observed plasmas with an index of refraction greater than 1 in the soft X-ray regime. These plasmas are usually a few times ionized and have ranged from lowZ carbon plasmas to mid-Z tin plasmas. Our m