Local Moment Vector Analysis for Quantification of Spatial Pattern Distortion in Tomography Measurement

A tomography system in the PANTA device found fluctuation pattern distortion during a cycle of the solitary wave oscillations, and global moment vector analysis quantified the degree of the distortion successfully. The method can be refined by help of Fourier-Rectangular Function Expansion to analyze local property of the distortion. This article present the method, called the local moment vector analysis, which can evaluate the local distortion of fluctuation patterns, with the results obtained by applying the local method to the solitary wave oscillations.