Development and Basic Qualification Steps towards an Electrochemically Based H-Sensor for Lithium System Applications
نویسندگان
چکیده
IFMIF-DONES, or the InternationalFusionMaterialsIrradiationFacility-DEMOOrientedNeutronSource, is a facility for investigations into foreseen fusion power plant materials using relevant neutron irradiation of 14 MeV. This special n-irradiation generated by interaction deuteron beams with liquid lithium. A critical issue during operation IFMIF-DONES enrichment dissolved impurities in Li-melt loops. The danger occurs as result hydrogen-induced corrosivity and embrittlement loop components, well security hazards associated radioactive tritium. Hence, application lithium requires suitable impurity control system reliable low-level maintenance under operating conditions DONES. Regarding those requirements, an electrochemical sensor hydrogen monitoring was developed frame international EUROFusion–WPENS task, to determine H-concentrations via electro-motive force (EMF) Li-melts online-monitoring system. Long-term tests demonstrated that fulfills requirements chemical mechanical stability functionality harsh Li environment planned DONES conditions. Obtained results operational experiences will be discussed regard windows, reproducibility calibration needs. Additionally, recommendations outlined upgraded systems future qualification
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ژورنال
عنوان ژورنال: Journal of nuclear engineering
سال: 2022
ISSN: ['2673-4362']
DOI: https://doi.org/10.3390/jne4010001