2-D image diagnostic technique for edge turbulence using fast cameras

N. Nishino, T. Mizuuchi, Z. Feng, S. Kobayashi, K. Nagasaki, H. Okada, F. Sano, K. Kondo, Y. Nakashima, Y. Higashizono, H. Kawano, T. Cho, M. Shoji, K. Sasaki, K. Hanada, H. Zushi

    Research output: Contribution to journalArticlepeer-review

    3 Citations (Scopus)

    Abstract

    Fast cameras are powerful tool to visualize the edge turbulence in peripheral plasmas. Under Bi-directional collaborations recently in Heliotron J and GAMMA10 filamentary structures along the magnetic field line were firstly observed with GPI (gas puff imaging) by fast camera. In both machines the filamentary structures had similar stripe pattern in the images and simultaneous measurements of the ion saturation current by electrostatic probes show that the filamentary structures were relatively higher electron density/temperature regions in peripheral plasmas. It is not sufficient to conclude both filamentary structures are the same, however, these phenomena were thought to be related to the energy confinement. Thus the physics mechanism should be solved in the near future.

    Original languageEnglish
    Article numberS1055
    JournalPlasma and Fusion Research
    Volume2
    DOIs
    Publication statusPublished - 2007

    All Science Journal Classification (ASJC) codes

    • Condensed Matter Physics

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