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Fig. 7.


Effect of the flux unbalance on the results of MV1 applied to the Lundquist’s FR without expansion (ζ = 0). The results are shown for two cases of flux unbalance between the FR front and rear. The front limit is located where Bz, FR = 0 (ρfront = 1) and the rear limit is set at a fraction ρrear of the FR radius. For comparison the case ρrear = 1 is shown in Fig. 3b. Left column: θx, θy, θz are the angles in degrees between the x, y, z directions, respectively, of the FR and MV frames. Middle left column: Δi and Δλ quantify the difference of axis orientations between the FR and the one found by MV, so the orientation biases. Middle right column: ratios of the eigenvalues eνmin, eνint and eνmax. Right column: ratio of the maximum values of Bz, MV to Bz, FR (amplified by a factor of 100 for the first ratio). The horizontal dotted lines and the yellow regions are landmarks.

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