Fourier-rectangular function analysis for cylindrical plasma images

K. Yamasaki, A. Fujisawa, Y. Nagashima, C. Moon, S. Inagaki, N. Kasuya, Y. Kosuga, M. Sasaki, T. Yamada

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)


An analysis method is developed for imaging measurement systems, such as the tomography system or fast camera imaging, in order to extract the spatial structure properties of fluctuation. In this analysis method, rectangular functions and Fourier series are adopted for the basis functions of the radial and azimuthal coordinates, respectively. The examples of this analysis method show that this method is useful for quantifying the spatial structure of the 2D image such as the radial profile of the power and the rotation angle of each azimuthal mode. The method proposed in this article allows us to elucidate the features of the 2D spatial structure of phenomena in magnetized plasma.

Original languageEnglish
Article number043304
JournalJournal of Applied Physics
Issue number4
Publication statusPublished - Jul 28 2019

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)


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