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Calibration of the ITER outer vessel steady-state magnetic sensors
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SYSNO ASEP 0548224 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Calibration of the ITER outer vessel steady-state magnetic sensors Author(s) Entler, Slavomír (UFP-V) ORCID
Ďuran, Ivan (UFP-V) RID, ORCID
Kocan, M. (FR)
Vayakis, G. (FR)
Sládek, Petr (UFP-V)
Grover, Ondřej (UFP-V) ORCID
Šebek, Josef (FZU-D) RID
Výborný, Karel (FZU-D) RID, ORCIDNumber of authors 8 Article number 112398 Source Title Fusion Engineering and Design. - : Elsevier - ISSN 0920-3796
Roč. 168, July (2021)Number of pages 6 s. Language eng - English Country CH - Switzerland Keywords Calibration ; Hall sensors ; iter ; Magnetic diagnostics ; ovss Subject RIV BL - Plasma and Gas Discharge Physics OECD category Fluids and plasma physics (including surface physics) Subject RIV - cooperation Institute of Physics - Plasma and Gas Discharge Physics Method of publishing Limited access Institutional support UFP-V - RVO:61389021 ; FZU-D - RVO:68378271 UT WOS 000670075300004 EID SCOPUS 85101779562 DOI 10.1016/j.fusengdes.2021.112398 Annotation The outer vessel steady-state magnetic field sensors (OVSS), a subsystem of the ITER magnetic diagnostics, consists of 60 units that will be installed on the vacuum vessel outer shell. Each OVSS unit features a pair of Hall sensors with a sensing layer made of bismuth and an onboard thermocouple. Prior to the installation of the sensors on ITER, OVSS will be subject to the complex calibration process designed to satisfy the ITER requirement for the measurement accuracy of 4 mT (2σ) in the range of the magnetic field from 0 to 2.5 T. The calibration process includes the calibration of the onboard thermocouple, sensor controller calibration, measurement of tilt of each Hall sensor with respect to the OVSS housing, and the measurement of the sensitivity of Hall sensors as a function of temperature and magnetic field for the range of ITER-relevant magnetic fields and temperatures. The expected calibration error projected to the magnetic field measurement of 2.5 mT will allow to meet the required measurement accuracy. Workplace Institute of Plasma Physics Contact Vladimíra Kebza, kebza@ipp.cas.cz, Tel.: 266 052 975 Year of Publishing 2022 Electronic address https://www.sciencedirect.com/science/article/pii/S0920379621001745?via%3Dihub
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