Zobrazeno 1 - 10
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pro vyhledávání: '"WHITLEY, Heather P."'
Autor:
Swift, Damian C., Kritcher, Andrea L., Lazicki, Amy, Hawreliak, James A., Doeppner, Tilo, Whitley, Heather D., Nilsen, Joseph, Bachmann, Benjamin, MacDonald, Michael, Maddox, Brian, Kostinski, Natalie, Collins, Gilbert W., Glenzer, Siegfried, Rothman, Stephen D., Kraus, Dominik, Falcone, Roger W.
The principal Hugoniot of carbon, initially diamond, was measured from 3 to 80 TPa (30 to 800 million atmospheres), the highest pressure ever achieved, using radiography of spherically-converging shocks. The shocks were generated by ablation of a pla
Externí odkaz:
http://arxiv.org/abs/2203.16065
Autor:
Swift, Damian C., Kritcher, Andrea L., Lazicki, Amy, Kostinski, Natalie, Maddox, Brian R., Martin, Madison E., Doeppner, Tilo, Nilsen, Joseph, Whitley, Heather D.
We previously reported an experimental platform to induce a spherically-convergent shock in a sample using laser-driven ablation, probed with time-resolved x-ray radiography, and an analysis method to deduce states along the principal shock Hugoniot
Externí odkaz:
http://arxiv.org/abs/2203.08891
Autor:
Swift, Damian C., Lockard, Thomas, Hamel, Sebastien, Wu, Christine J., Benedict, Lorin X., Sterne, Philip A., Whitley, Heather D.
Atom-in-jellium calculations of the electron states, and perturbative calculations of the Einstein frequency, were used to construct equations of state (EOS) from around $10^{-5}$ to $10^7$g/cm$^3$ and $10^{-4}$ to $10^{6}$eV for elements relevant to
Externí odkaz:
http://arxiv.org/abs/2103.03371
Autor:
Militzer, Burkhard, Gonzalez-Cataldo, Felipe, Zhang, Shuai, Whitley, Heather D., Swift, Damian C., Millot, Marius
Publikováno v:
In production, Journal of Chemical Physics (2020)
We study nonideal mixing effects in the regime of warm dense matter (WDM) by computing the shock Hugoniot curves of BN, MgO, and MgSiO_3. First, we derive these curves from the equations of state (EOS) of the fully interacting systems, which were obt
Externí odkaz:
http://arxiv.org/abs/2010.13240
Autor:
Zhang, Shuai, Marshall, Michelle C., Yang, Lin H., Sterne, Philip A., Militzer, Burkhard, Daene, Markus, Gaffney, James A., Shamp, Andrew, Ogitsu, Tadashi, Caspersen, Kyle, Lazicki, Amy E., Erskine, David, London, Richard A., Celliers, Peter M., Nilsen, Joseph, Whitley, Heather D.
Publikováno v:
Phys. Rev. E 102, 053203 (2020)
Boron carbide (B$_4$C) is of both fundamental scientific and practical interest in inertial confinement fusion (ICF) and high energy density physics experiments. We report the results of a comprehensive computational study of the equation of state (E
Externí odkaz:
http://arxiv.org/abs/2008.01271
Autor:
Whitley, Heather D., Kemp, G. Elijah, Yeamans, Charles, Walters, Zachary, Blue, Brent E., Garbett, Warren, Schneider, Marilyn, Craxton, R. Stephen, Garcia, Emma M., McKenty, Patrick W., Gatu-Johnson, Maria, Caspersen, Kyle, Castor, John I., Däne, Markus, Ellison, C. Leland, Gaffney, James, Graziani, Frank R., Klepeis, John, Kostinski, Natalie, Kritcher, Andrea, Lahmann, Brandon, Lazicki, Amy E., Le, Hai P., London, Richard A., Maddox, Brian, Marshall, Michelle, Martin, Madison E., Militzer, Burkhard, Nikroo, Abbas, Nilsen, Joseph, Ogitsu, Tadashi, Pask, John, Pino, Jesse E., Rubery, Michael, Shepherd, Ronnie, Sterne, Philip A., Swift, Damian C., Yang, Lin, Zhang, Shuai
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
Externí odkaz:
http://arxiv.org/abs/2006.15635
Autor:
Swift, Damian C., Kritcher, Andrea L., Hawreliak, James A., Gaffney, James, Lazicki, Amy, MacPhee, Andrew, Bachmann, Benjamin, Doeppner, Tilo, Nilsen, Joseph, Whitley, Heather D., Collins, Gilbert W., Glenzer, Siegfried, Rothman, Stephen D., Kraus, Dominik, Falcone, Roger W.
Publikováno v:
Rev. Sci. Instrum. 92, 063514 (2021)
Time-resolved radiography can be used to obtain absolute shock Hugoniot states by simultaneously measuring at least two mechanical parameters of the shock, and this technique is particularly suitable for one-dimensional converging shocks where a sing
Externí odkaz:
http://arxiv.org/abs/2006.13342
Publikováno v:
Solid State Sciences (2020)
Using first-principles molecular dynamics, we calculated the equation of state and shock Hugoniot of various boron phases. We find a large mismatch between Hugoniots based on existing knowledge of the equilibrium phase diagram and those measured by s
Externí odkaz:
http://arxiv.org/abs/2001.11890
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Autor:
Zhang, Shuai, Lazicki, Amy, Militzer, Burkhard, Yang, Lin H., Caspersen, Kyle, Gaffney, Jim A., Däne, Markus W., Pask, John E., Johnson, Walter R., Sharma, Abhiraj, Suryanarayana, Phanish, Johnson, Duane D., Smirnov, Andrey V., Sterne, Philip A., Erskine, David, London, Richard A., Coppari, Federica, Swift, Damian, Nilsen, Joseph, Nelson, Art J., Whitley, Heather D.
Publikováno v:
Phys. Rev. B 99, 165103 (2019)
The equation of state (EOS) of materials at warm dense conditions poses significant challenges to both theory and experiment. We report a combined computational, modeling, and experimental investigation leveraging new theoretical and experimental cap
Externí odkaz:
http://arxiv.org/abs/1902.00667