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MOTÚZ, R. GESCHEIDTOVÁ, E. LEYSEN, W. MOREAU, P. GUSAROV, A. DREXLER, P. WUILPART, M.
Originální název
Theoretical assessment of plasma current measurement in tokamaks in relation with the OTDR detector noise
Typ
článek ve sborníku ve WoS nebo Scopus
Jazyk
angličtina
Originální abstrakt
In this paper, we present a theoretical analysis of the plasma current measurement in tokamak-type fusion reactors using a Polarization Optical Time-Domain Reflectometer (POTDR) setup, where the general case of non-uniform distribution of a magnetic field along the sensing fibre is analyzed. A low birefringent fibre has been considered as the sensing fibre. The numerical simulations were based on the Jones formalism and take into account the OTDR detector noise reflecting the measurement error as a function of the plasma current. The measurement performance was evaluated for an ITER (International Thermonuclear Experimental Reactor)-relevant sensor configuration. Based on the simulation results we demonstrate that for plasma currents in the range of 0 to 1 MA, the signal-to-noise ratio (SNR) of 6 dB, achievable in modern POTDRs, complies with the ITER requirements. Subsequently, the SNR level of 4 dB satisfies the plasma current range of 1 to 20 MA.
Klíčová slova
POTDR, plasma current, ITER, distributed fibre optic current sensor, tokamak
Autoři
MOTÚZ, R.; GESCHEIDTOVÁ, E.; LEYSEN, W.; MOREAU, P.; GUSAROV, A.; DREXLER, P.; WUILPART, M.
Vydáno
1. 8. 2019
Nakladatel
IEEE
Místo
Rome, Italy
ISSN
1559-9450
Periodikum
Progress In Electromagnetics
Stát
Spojené státy americké
Strany od
1511
Strany do
1515
Strany počet
5
URL
https://ieeexplore.ieee.org/document/9017214
BibTex
@inproceedings{BUT158000, author="Rastislav {Motúz} and Eva {Gescheidtová} and Willem {Leysen} and Philippe {Moreau} and Andrei {Gusarov} and Petr {Drexler} and Marc {Wuilpart}", title="Theoretical assessment of plasma current measurement in tokamaks in relation with the OTDR detector noise", booktitle="2019 Progress in Electromagnetics Research Symposium (PIERS-Rome)", year="2019", journal="Progress In Electromagnetics", pages="1511--1515", publisher="IEEE", address="Rome, Italy", doi="10.1109/PIERS-Spring46901.2019.9017214", issn="1559-9450", url="https://ieeexplore.ieee.org/document/9017214" }