Bulletin of the American Physical Society
60th Annual Meeting of the APS Division of Plasma Physics
Volume 63, Number 11
Monday–Friday, November 5–9, 2018; Portland, Oregon
Session UO7: Equation of State
2:00 PM–4:48 PM,
Thursday, November 8, 2018
OCC
Room: B117-119
Chair: Peter Celliers, Lawrence Livermore National Lab
Abstract ID: BAPS.2018.DPP.UO7.6
Abstract: UO7.00006 : Equation of state measurements of proton-heated warm dense matter using streaked X-ray radiography*
3:00 PM–3:12 PM
Presenter:
Matthew P Hill
(AWE, Aldermaston, RG7 4PR, UK)
Authors:
Matthew P Hill
(AWE, Aldermaston, RG7 4PR, UK)
Colin RD Brown
(AWE, Aldermaston, RG7 4PR, UK)
Emma Floyd
(AWE, Aldermaston, RG7 4PR, UK)
Steven F James
(AWE, Aldermaston, RG7 4PR, UK)
Lauren MR Hobbs
(AWE, Aldermaston, RG7 4PR, UK)
Lucy Wilson
(AWE, Aldermaston, RG7 4PR, UK)
Rory Penman
(AWE, Aldermaston, RG7 4PR, UK)
Peter Allan
(AWE, Aldermaston, RG7 4PR, UK)
David J Hoarty
(AWE, Aldermaston, RG7 4PR, UK)
We report on ongoing short-pulse proton heating experiments to measure the equation of state of low-Z warm dense matter conducted at the AWE Orion laser facility. Picosecond resolution streaked X-ray radiographs were analysed using the method proposed by M. Foord et al. [Rev. Sci. Instrum. 75, 2586 (2004)] to generate isentropes, extending from 0.01 to 4 Mbar at temperatures up to 20 eV. To date, isentropes have been extracted for parylene-N plastic, boron carbide and diamond; all show a systematic disagreement with Thomas-Fermi-based predictions at low densities. The latest results are presented including attempts to use streaked optical pyrometry to measure the initial plasma temperature.
*© British Crown Owned Copyright 2018/AWE
To cite this abstract, use the following reference: http://meetings.aps.org/link/BAPS.2018.DPP.UO7.6
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