Fiber—optic sensor for plasma current diagnostics in tokamaks

N. M. Kozhevnikov

doi:10.1117/12.2321908

1 December 1991 Fiber—optic sensor for plasma current diagnostics in tokamaks

N. M. Kozhevnikov

Proceedings Volume 1584, Fiber Optic and Laser Sensors IX; (1991) https://doi.org/10.1117/12.2321908
Event: OE Fiber, 1991, Boston, MA, United States

Abstract

A simple fiber-optic sensor (FOS) based on Faraday effect in an isotropic single-mode fiber (SMF) was developed for discharge current diagnostics in tokamaks.. Current resolution of 30 Ampere/turn and temporal resolution of ~1ms have been obtained in the hostile electromagnetic and radiation environment of an operating tokamak. These resolution values were stipulated by quasi-isotropic SMF and differential photoreceiver shot—noise limited outputThe first experiments with the FOS application for plasma current measurements in tokamak FT-1 are discussed.

Citation Download Citation

N. M. Kozhevnikov "Fiber—optic sensor for plasma current diagnostics in tokamaks", Proc. SPIE 1584, Fiber Optic and Laser Sensors IX, (1 December 1991); https://doi.org/10.1117/12.2321908

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