Design optimization of RF lines in vacuum environment for the MITICA experiment

Michela De Muri, Mauro Pavei, Federico Rossetto, Diego Marcuzzi, Enrico Miorin, Silvia M. Deambrosis

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Abstract

This contribution regards the Radio Frequency (RF) transmission line of the Megavolt ITER Injector and Concept Advancement (MITICA) experiment. The original design considered copper coaxial lines of 1″ 5/8, but thermal simulations under operating conditions showed maximum temperatures of the lines at regime not compatible with the prescription of the component manufacturer. Hence, an optimization of the design was necessary. Enhancing thermal radiation and increasing the conductor size were considered for design optimization: thermal analyses were carried out to calculate the temperature of MITICA RF lines during operation, as a function of the emissivity value and of other geometrical parameters. Five coating products to increase the conductor surface emissivity were tested, measuring the outgassing behavior of the selected products and the obtained emissivity values.
Original languageEnglish
Article number02B314
Pages (from-to)-
JournalReview of Scientific Instruments
Volume87
Issue number2
DOIs
Publication statusPublished - 1 Feb 2016
Externally publishedYes

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All Science Journal Classification (ASJC) codes

  • Instrumentation

Cite this

De Muri, M., Pavei, M., Rossetto, F., Marcuzzi, D., Miorin, E., & Deambrosis, S. M. (2016). Design optimization of RF lines in vacuum environment for the MITICA experiment. Review of Scientific Instruments, 87(2), -. [02B314]. https://doi.org/10.1063/1.4933017