Figure 7.

Experiment results: circulating conductivity of phantoms with measured H ⁺, Coronal Slice, (a) $\tilde{\sigma }(A(\widehat{\mathbf{x}}))$ of saline water, (b) $\tilde{\sigma }(A(\widehat{\mathbf{y}}))$ of saline water, (c) $\tilde{\sigma }(A(\widehat{\mathbf{x}}))$ of straw phantom 1, (d) $\tilde{\sigma }(A(\widehat{\mathbf{y}}))$ of straw phantom 1, (e) $\tilde{\sigma }(A(\widehat{\mathbf{x}}))$ of straw phantom 2, (f) $\tilde{\sigma }(A(\widehat{\mathbf{y}}))$ of straw phantom 2.