Status of steady-state magnetic diagnostic for ITER and outlook for possible materials of Hall sensors for DEMO

0517864 - ÚFP 2020 RIV NL eng J - Článek v odborném periodiku
Ďuran, Ivan - Entler, Slavomír - Grover, Ondřej - Bolshakova, I. - Výborný, Karel - Kocan, M. - Jirman, J. - Vayakis, G. - Vasyliev, O. - Radishevskyi, M. - Wang, Z. C. - Neumaier, D.
Status of steady-state magnetic diagnostic for ITER and outlook for possible materials of Hall sensors for DEMO.
Fusion Engineering and Design. Roč. 146, September (2019), s. 2397-2400. ISSN 0920-3796. E-ISSN 1873-7196
Grant CEP: GA MŠMT(CZ) 8D15001
GRANT EU: European Commission(XE) 633053 - EUROfusion
Institucionální podpora: RVO:61389021
Klíčová slova: fusion * iter * demo * Hall sensors * Steady state magnetic diagnostic
Obor OECD: Fluids and plasma physics (including surface physics)
Impakt faktor: 1.692, rok: 2019
Způsob publikování: Omezený přístup
https://www.sciencedirect.com/science/article/pii/S0920379619305344?via%3Dihub

The ITER outer vessel steady state (OVSS) magnetic diagnostic employing bismuth Hall sensors is presently being manufactured. New results on understanding and analytical description of a rather complex dependence of bismuth Hall coefficient on magnetic field and temperature are presented. Both, dependence of bismuth Hall coefficient on temperature and magnetic field is captured by a single analytical function while the error of the fit is comparable to the maximum allowed error of the ITER OVSS diagnostic. Results of FISPACT simulation of indium transmutation under ITER OVSS like neutron fluence are presented. Indium is used within OVSS sensors to provide periodic in-situ recalibration of embedded thermocouples. It is demonstrated that additional impurities introduced by indium transmutation does not compromise precision of the ITER OVSS diagnostic. Finally, outlook for Hall sensing materials (InAs, Bi, BiCu, Sb, Au-nanofilms, and graphene) potentially applicable for DEMO steady state sensors is given reviewing their properties in relation to the harsh environmental constraints posed to their implementation on DEMO reactor.
Trvalý link: http://hdl.handle.net/11104/0303124