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Proceedings Paper

Fiber—optic sensor for plasma current diagnostics in tokamaks
Author(s): N. M. Kozhevnikov
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Paper 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.

Paper Details

Date Published: 1 December 1991
Proc. SPIE 1584, Fiber Optic and Laser Sensors IX, (1 December 1991); doi: 10.1117/12.2321908
Show Author Affiliations
N. M. Kozhevnikov, Leningrad State Technical Univ. (Russian Federation)

Published in SPIE Proceedings Vol. 1584:
Fiber Optic and Laser Sensors IX
Ramon P. DePaula; Eric Udd, Editor(s)

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