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Exploiting Laboratory and Heliophysics Plasma Synergies

Naval Research Laboratory, Washington, DC 20375, USA
Swarthmore College, Swarthmore, PA 19081, USA
General Atomics, San Diego, CA 92186, USA
Global Defense Technology and Systems, Inc., Crofton, MD 21114, USA
Massachusetts Institute of Technology, Cambridge, MA 02139, USA
University of Wisconsin, Madison, WI 53706, USA
University of California, Berkeley, CA 94720, USA
Author to whom correspondence should be addressed.
Energies 2010, 3(5), 1014-1048;
Received: 1 March 2010 / Revised: 5 May 2010 / Accepted: 18 May 2010 / Published: 25 May 2010
(This article belongs to the Special Issue Nuclear Fusion)
Recent advances in space-based heliospheric observations, laboratory experimentation, and plasma simulation codes are creating an exciting new cross-disciplinary opportunity for understanding fast energy release and transport mechanisms in heliophysics and laboratory plasma dynamics, which had not been previously accessible. This article provides an overview of some new observational, experimental, and computational assets, and discusses current and near-term activities towards exploitation of synergies involving those assets. This overview does not claim to be comprehensive, but instead covers mainly activities closely associated with the authors’ interests and reearch. Heliospheric observations reviewed include the Sun Earth Connection Coronal and Heliospheric Investigation (SECCHI) on the National Aeronautics and Space Administration (NASA) Solar Terrestrial Relations Observatory (STEREO) mission, the first instrument to provide remote sensing imagery observations with spatial continuity extending from the Sun to the Earth, and the Extreme-ultraviolet Imaging Spectrometer (EIS) on the Japanese Hinode spacecraft that is measuring spectroscopically physical parameters of the solar atmosphere towards obtaining plasma temperatures, densities, and mass motions. The Solar Dynamics Observatory (SDO) and the upcoming Solar Orbiter with the Heliospheric Imager (SoloHI) on-board will also be discussed. Laboratory plasma experiments surveyed include the line-tied magnetic reconnection experiments at University of Wisconsin (relevant to coronal heating magnetic flux tube observations and simulations), and a dynamo facility under construction there; the Space Plasma Simulation Chamber at the Naval Research Laboratory that currently produces plasmas scalable to ionospheric and magnetospheric conditions and in the future also will be suited to study the physics of the solar corona; the Versatile Toroidal Facility at the Massachusetts Institute of Technology that provides direct experimental observation of reconnection dynamics; and the Swarthmore Spheromak Experiment, which provides well-diagnosed data on three-dimensional (3D) null-point magnetic reconnection that is also applicable to solar active regions embedded in pre-existing coronal fields. New computer capabilities highlighted include: HYPERION, a fully compressible 3D magnetohydrodynamics (MHD) code with radiation transport and thermal conduction; ORBIT-RF, a 4D Monte-Carlo code for the study of wave interactions with fast ions embedded in background MHD plasmas; the 3D implicit multi-fluid MHD spectral element code, HiFi; and, the 3D Hall MHD code VooDoo. Research synergies for these new tools are primarily in the areas of magnetic reconnection, plasma charged particle acceleration, plasma wave propagation and turbulence in a diverging magnetic field, plasma atomic processes, and magnetic dynamo behavior. View Full-Text
Keywords: heliophysics; laboratory plasma experiments; magnetohydrodynamics; plasma simulation heliophysics; laboratory plasma experiments; magnetohydrodynamics; plasma simulation
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Dahlburg, J.; Amatucci, W.; Brown, M.; Chan, V.; Chen, J.; Cothran, C.; Chua, D.; Dahlburg, R.; Doschek, G.; Egedal, J.; Forest, C.; Howard, R.; Huba, J.; Ko, Y.-K.; Krall, J.; Laming, J.M.; Lin, R.; Linton, M.; Lukin, V.; Murphy, R.; Rakowski, C.; Socker, D.; Tylka, A.; Vourlidas, A.; Warren, H.; Wood, B. Exploiting Laboratory and Heliophysics Plasma Synergies. Energies 2010, 3, 1014-1048.

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