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Final design of the ITER outer vessel steady-state magnetic sensors.
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SYSNO ASEP 0481372 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Final design of the ITER outer vessel steady-state magnetic sensors. Author(s) Kocan, M. (FR)
Ďuran, Ivan (UFP-V) RID, ORCID
Entler, Slavomír (UFP-V) ORCID
Vayakis, G. (FR)
Carmona, M.J. (ES)
Gitton, P. (FR)
Guirao, J. (FR)
Gonzalez, M. (ES)
Iglesias, S. (FR)
Pascual, Q. (FR)
Sandford, G. (FR)
Vacas, C. (ES)
Walsh, M. (FR)
Walton, R. (GB)Source Title Fusion Engineering and Design. - : Elsevier - ISSN 0920-3796
Roč. 123, November (2017), s. 936-939Number of pages 4 s. Publication form Print - P Action SOFT 2016: Symposium on Fusion Technology /29./ Event date 05.09.2016 - 09.09.2016 VEvent location Prague Country CZ - Czech Republic Event type WRD Language eng - English Country CH - Switzerland Keywords ITER ; Magnetic sensor ; Hall sensor Subject RIV JF - Nuclear Energetics OECD category Nuclear related engineering Institutional support UFP-V - RVO:61389021 UT WOS 000418992000197 EID SCOPUS 85015803438 DOI 10.1016/j.fusengdes.2017.03.043 Annotation The outer vessel steady-state sensors (OVSS) – a subsystem of the ITER magnetic diagnostics – willcontribute to the measurement of the plasma current, plasma-wall clearance, and local perturbationsof the magnetic flux surfaces near the wall. The diagnostic consists of a poloidal array of sixty sensorswelded to the vacuum vessel outer surface. Each OVSS contains a pair of bismuth Hall sensors with themeasurement axes parallel (in the poloidal plane) and normal to the vacuum vessel. These Hall sensorswere successfully tested in environmental conditions corresponding to those in ITER (neutron irradiation,vacuum vessel bakeout, etc.) and have proven to be capable of measuring the magnetic field up to at least±7 T. An AC analogue lock-in current spinning signal processing electronics has been developed for theOVSS to eliminate the spurious voltage due to Hall sensor manufacturing imperfections and the planarHall effect. This paper presents the final design of the OVSS diagnostic, developed jointly by the ITEROrganization and the Institute of Plasma Physics in Prague. Workplace Institute of Plasma Physics Contact Vladimíra Kebza, kebza@ipp.cas.cz, Tel.: 266 052 975 Year of Publishing 2018
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