Turbulent Transport and Heating of Trace Heavy Ions in Hot Magnetized Plasmas
Author(s)
Barnes, Michael; Parra Diaz, Felix Ignacio; Dorland, William
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Scaling laws for the transport and heating of trace heavy ions in low-frequency magnetized plasma turbulence are derived and compared with direct numerical simulations. The predicted dependences of turbulent fluxes and heating on ion charge and mass number are found to agree with numerical results for both stationary and differentially rotating plasmas. Heavy ion momentum transport is found to increase with mass, and heavy ions are found to be preferentially heated, implying a mass-dependent ion temperature for very weakly collisional plasmas and for partially ionized heavy ions in strongly rotating plasmas.
Date issued
2012-10Department
Massachusetts Institute of Technology. Department of Nuclear Science and Engineering; Massachusetts Institute of Technology. Plasma Science and Fusion CenterJournal
Physical Review Letters
Publisher
American Physical Society
Citation
Barnes, M., F. Parra Diaz, and W. Dorland. “Turbulent Transport and Heating of Trace Heavy Ions in Hot Magnetized Plasmas.” Physical Review Letters 109.18 (2012). © 2012 American Physical Society
Version: Final published version
ISSN
0031-9007
1079-7114