Electromagnetic energy transport by tearing fluctuations in a self-organized reversed-field pinch plasma

Thuecks, Derek J.; McCollam, Karsten J.

doi:10.1017/s0022377822000368

Electromagnetic energy transport by tearing fluctuations in a self-organized reversed-field pinch plasma

Journal Article · 11 May 2022 · Journal of Plasma Physics

DOI:https://doi.org/10.1017/s0022377822000368· OSTI ID:1977744

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Fluctuation measurements reveal the outward electromagnetic energy flux needed to drive the dynamo electromotive force supporting magnetic self-organization in a reversed-field pinch plasma. The radial Poynting flux due to tearing mode fluctuations is measured with an insertable probe during magnetic relaxation. This flux corresponds to transient power levels much larger than the input power and comparable to the global equilibrium magnetic energy transient loss rate. The probe measurements of this flux are roughly as predicted by a simple Poynting's theorem model upon substitution of equilibrium measurement data.

Research Organization:: Univ. of Wisconsin, Madison, WI (United States)

Sponsoring Organization:: USDOE Office of Science (SC)

DOE Contract Number:: FC02-05ER54814; SC0018266

OSTI ID:: 1977744

Journal Information:: Journal of Plasma Physics, Vol. 88, Issue 3; ISSN 0022-3778

Publisher:: Cambridge University Press

Country of Publication:: United States

Language:: English

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