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Dual-Species Plasmas Illustrate MHD Flows

Stenson, Eve V. and Bellan, Paul M. (2008) Dual-Species Plasmas Illustrate MHD Flows. IEEE Transactions on Plasma Science, 36 (4, Par). pp. 1206-1207. ISSN 0093-3813. doi:10.1109/TPS.2008.927095.

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Plasma loops created in the laboratory strongly resemble structures observed in the solar corona. For example, both solar coronal loops and experimental loops exhibit remarkably uniform axial cross sections. A magnetohydrodynamic theory that was proposed to explain this phenomenon predicts that a plasma loop whose axial magnetic field is constricted at both footpoints will experience bulk flows into the loop from both ends. To test this theory, dual-species plasma loops were formed by supplying a different neutral gas to each of the two footpoints. Optical filters were then used to separately image the motion of different sections of the plasma. Bulk flows were, in fact, observed.

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Bellan, Paul M.0000-0002-0886-8782
Additional Information:© 2008 IEEE. Reprinted with permission. Manuscript received December 7, 2007; revised April 1, 2008. This work was supported in part by the U.S. Department of Energy and in part by the Air Force Office of Scientific Research.
Funding AgencyGrant Number
Department of Energy (DOE)UNSPECIFIED
Air Force Office of Scientific Research (AFOSR)UNSPECIFIED
Subject Keywords:Flows, laboratory solar physics, loops, magnetohydrodynamic (MHD), astrophysical plasma, plasma magnetohydrodynamics solar corona
Issue or Number:4, Par
Record Number:CaltechAUTHORS:STEieeetps08
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:11631
Deposited By: Archive Administrator
Deposited On:14 Sep 2008 05:19
Last Modified:08 Nov 2021 22:01

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