Local current density measurement using a Rogowski probe in Tokyo Spherical Tokamak-2

H. Furui, Y. Nagashima, Y. Takase, A. Ejiri, H. Kakuda, M. Sonehara, T. Oosako, N. Tsujii, J. Hiratsuka, K. Imamura, T. Inada, K. Nakamura, A. Nakanishi, T. Shinya, H. Togashi, S. Tsuda, T. Wakatsuki, T. Yamaguchi

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    5 Citations (Scopus)

    Abstract

    A Rogowski probe consisting of a small multi-layer Rogowski coil, five magnetic pick-up coils, and a Langmuir probe was developed to measure the local current density and its direction. It can be moved along the major radius and can be turned around its axis. This probe was used to measure the current density profile near the last closed flux surface of Ohmic plasmas in Tokyo Spherical Tokamak-2. The current density profile was measured successfully with a signal to noise ratio of greater than 20.

    Original languageEnglish
    Article number11D813
    JournalReview of Scientific Instruments
    Volume85
    Issue number11
    DOIs
    Publication statusPublished - Nov 2014

    All Science Journal Classification (ASJC) codes

    • Instrumentation

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