NDLI: Fiber-optical probes to measure megampere currents and megagauss magnetic fields in conditions of high-power radiation effect

Content Provider	IEEE Xplore Digital Library
Author	Victorov, I.V. Grushko, V.V. Markevtsev, I.M. Moiseenko, A.N. Platonov, V.V. Repin, P.B. Tatsenko, O.M. Filippov, A.V.
Copyright Year	2012
Description	Author affiliation: Russian Fed. Nucl. Center, All-Russian Res. Inst. of Exp. Phys. (RFNC - VNIIEF), Sarov, Russia (Victorov, I.V.; Grushko, V.V.; Markevtsev, I.M.; Moiseenko, A.N.; Platonov, V.V.; Repin, P.B.; Tatsenko, O.M.; Filippov, A.V.)
Abstract	The paper presents optical probes to measure currents of tens megamperes and megagauss magnetic fields of ~10 MGs. Operating principle of the probes is based on the Faraday effect. Investigation results on determination of optical losses appearing at fibers alloyed with different dopants in a core under influence of an ionizing radiation at its rise time up to $10^{13}$ R\s are described in the paper. The least optical losses have been observed in the fibers of POD type. The core of this fiber is made of pure quartz, and the shell is alloyed with fluorine. Optical spectrum range of the least optical losses is ~(1.0...1.3) μm. We did not observe light depolarization at radiation effect on the POD type fiber with small LB (low-birefringence), i.e. general light intensity attenuation without disturbance of its linear polarization takes place. Such fiber could be used as the optical probes to record the currents of tens megamperes at rise time of ≤ 100 ns in the conditions of radiation influence on the fiber with exposition dose increase rate up to $10^{13}$ R/s.
Starting Page	1
Ending Page	5
File Size	781029
Page Count	5
File Format	PDF
e-ISBN	9781467357203
DOI	10.1109/MEGAGAUSS.2012.6781452
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-10-14
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Optical fiber polarization Optical polarization Magnetic field measurement fiber transmission losses alloy dopants Magnetic fields Probes ionizing radiation
Content Type	Text
Resource Type	Article

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