Turbulent Transport and Heating of Trace Heavy Ions in Hot Magnetized Plasmas
Open Access
- 31 October 2012
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 109 (18), 185003
- https://doi.org/10.1103/physrevlett.109.185003
Abstract
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.Keywords
Funding Information
- U.S. Department of Energy
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