56th Annual Meeting of the APS Division of Plasma Physics
Volume 59, Number 15
Monday–Friday, October 27–31, 2014;
New Orleans, Louisiana
Session GI2: Fundamental High Energy Density Physics
9:30 AM–12:30 PM,
Tuesday, October 28, 2014
Room: Bissonet
Chair: Carolyn Kuranz, University of Michigan
Abstract ID: BAPS.2014.DPP.GI2.2
Abstract: GI2.00002 : Relativistic electron-positron jets and plasmas using intense lasers
10:00 AM–10:30 AM
Preview Abstract
Abstract
Author:
Hui Chen
(Lawrence Livermore National Laboratory)
High-flux jets of electron-positron antimatter with temperatures of a few
trillion degrees have been produced in experiments at high-intensity laser
facilities [1-5]. These breakthrough experiments open up a novel area of
experimental high-energy-density plasma astrophysics identified in several
recent national reports. These experiments are on a path toward the
production of relativistic electron-positron ``pair'' plasmas [2], allowing
for interactive study of a state of matter otherwise found only in exotic
astrophysical systems such as active galaxies, quasars, gamma ray bursts,
black holes, and conditions existing shortly after the Big Bang. This
presentation describes the physical processes for making pairs and
summarizes recent results from several large intense laser facilities [2,
3]. These results include the pair jet energy, angular divergence and
emittance [4]; the pair jet temperature and density; pair production
scalings [6] and collimation by external magnetic fields [5]; and
sensitivity to laser intensity (10$^{18}$ - 10$^{21}$ Watts/cm$^2$), contrast (10$^7$ - 10$^{10}$), and energy (100 - 2000 J). The presentation
concludes with discussion of possibilities to exploit laser-produced pair
jets and plasmas.
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This work was performed under the auspices of the U.S. DOE by LLNL under Contract DE-AC52-07NA27344.
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[1] H. Chen, S. C. Wilks, J. D. Bonlie, \textit{et al.}, Phys. Rev. Lett. \textbf{102},
105001 (2009)\\[0pt]
[2] H. Chen, S. C. Wilks, D. D. Meyerhofer, \textit{et al.}, Phys. Rev. Lett. \textbf{105},
015003 (2010) \\[0pt]
[3] H. Chen, M. Nakai, Y. Sentoku, \textit{et al.}, New J. Phys. \textbf{15,} 065010 (2013)\\[0pt]
[4] H. Chen, J. C. Sheppard, D. D. Meyerhofer, \textit{et al.}, Phys. Plasmas \textbf{20},
012507 (2013)\\[0pt]
[5] H. Chen, G. Fiksel, D. Barnak, \textit{et al.}, Phys. Plasmas (Letter) \textbf{21},
040703 (2014)\\[0pt]
[6] H. Chen, F. Fiuza, A. Link, Y. Sentoku, \textit{et al.}, submitted (2014)
To cite this abstract, use the following reference: http://meetings.aps.org/link/BAPS.2014.DPP.GI2.2