High-impedance wire grid method to study spatiotemporal behavior of hot electron clump generated in a plasma

K. Terasaka, S. Yoshimura, Y. Kato, K. Furuta, M. Aramaki, T. Morisaki, M. Y. Tanaka

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    Abstract

    High-impedance Wire Grid (HIWG) detector has been developed to study spatiotemporal behavior of a hot electron clump generated in an electron cyclotron resonance (ECR) plasma. By measuring the floating potentials of the wire electrodes, and generating structure matrix made of geometrical means of the floating potentials, the HIWG detector reconstructs the spatial distribution of high-temperature electron clump at an arbitrary instant of time. Time slices of the spike event in floating potential revealed the growth and decay process of a hot spot occurs in an ECR plasma.

    Original languageEnglish
    Article number113503
    JournalReview of Scientific Instruments
    Volume85
    Issue number11
    DOIs
    Publication statusPublished - Nov 1 2014

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    All Science Journal Classification (ASJC) codes

    • Instrumentation

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