Fig. 12D contour plot of time evolution of stray magnetic field, B_stray (bottom three plots), and its radial (B_r, top three plots) and vertical (B_v, middle three plots) magnetic components induced by the coil current of (a) only PF2 and (b) PF2, PF34S, and PF57S. The coil current waveform is illustrated in (b).

Applied Science and Convergence Technology 2025;34:31~37 https://doi.org/10.5757/ASCT.2025.34.1.31

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