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Lateral cross section of a typical wave progression in thin skin following an excitation of 1.0 Vm-1, (equivalent to a PD of 0.0027 Wm-2 in free space). The thin skin PD progression is shown. The PD falls rapidly after passage through the upper SS, with a PD of ∼0.0005 Wm-2 at the SS/SB boundary.
