Small-Scale Magnetic Fluctuations Inside the Macrotor Tokamak

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https://link.aps.org/doi/10.1103/PhysRevLett.42.1270

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https://doi.org/10.1103/PhysRevLett.42.1270
 http://hdl.handle.net/11603/39041

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UMBC Computer Science and Electrical Engineering Department

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Author/Creator ORCID

https://orcid.org/0000-0003-0269-8433

Date

1979-05-07

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journal articles
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Citation of Original Publication

Zweben, S. J., C. R. Menyuk, and R. J. Taylor. "Small-Scale Magnetic Fluctuations Inside the Macrotor Tokamak" Physical Review Letters 42, no. 19 (7 May 1979): 1270–74. https://doi.org/10.1103/PhysRevLett.42.1270.

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©2025 American Physical Society

Subjects

Magnetic pickup loops
Macrotor tokamak
broad spectrum of oscillation
UMBC Optical Fiber Communications Laboratory
UMBC High Performance Computing Facility (HPCF)
short radial and poloidal correlation lengths
radial magnetic perturbations

Abstract

Magnetic pickup loops inserted into the Macrotor tokamak have shown a broad spectrum of oscillation in 𝐵ᵣ and 𝐵ₚ up to f≈100 kHz. The high-frequency 𝐵ᵣ have short radial and poloidal correlation lengths L < 5, in contrast with the usual Mirnov oscillations with 𝑓≈7 kHz and 𝐿≫5 cm. The observed magnitude 𝛴⁢|𝐵ᵣ| / 𝐵ₜ >10⁻⁵, where the summation extends over all f>30 kHz, is in the range in which such radial magnetic perturbations may be contributing to anomalous electron energy transport.