Evaluation of multipactor thresholds for coaxial lines subject to surface conditioning for the WEST ion cyclotron antenna
نویسندگان
چکیده
Multipactor voltage threshold charts and scaling laws for 30 Ω circular coaxial geometries, relevant to the WEST Ion Cyclotron Resonance Heating antennas, are reproduced using a developed multipactor decision-making algorithm relying on Spark-3D electron time-evolution data. The methodology is validated by comparing simulated powers measured power thresholds, 50 geometry. effects of conditioning, antenna-relevant surface sample, total emission yield properties studied. consequences conditioning phase thresholds transmission lines characteristic impedance also highlighted. It shown that preliminary baking suppress or reduce range in which can be triggered.
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ژورنال
عنوان ژورنال: Fusion Engineering and Design
سال: 2022
ISSN: ['1873-7196', '0920-3796']
DOI: https://doi.org/10.1016/j.fusengdes.2022.113325