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TUP009 |
Cyclotron Cavity Pollution Recovery |
169 |
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- J. Dabin, B. Adant, P. Cailliau, K. Ellis, E. Forton, J. Mandrillon, T.S. Ponter, P. Verbruggen
IBA, Louvain-la-Neuve, Belgium
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In a cyclotron, RF cavities are usually among the most reliable subsystems, provided minimal care and maintenance. Nevertheless, several parameters may affect cavity performance after several years of operation. To name a few typical causes of degradation are: decreasing vacuum quality, various gas loads or gas qualities triggering adverse effects, deposition of highly emissive material on the cavity due to overheating of components like pass-through connectors, accidental use of chemicals or not-suitable greases. The cavity status can be monitored but, in the worst cases, the RF tuning may become difficult and it is important to apply methods in order to recover a better cavity Q-factor. In this paper, cases of cavity pollution will be shown, their potential root causes discussed and some recovery methods described.
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Poster TUP009 [0.398 MB]
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DOI • |
reference for this paper
※ https://doi.org/10.18429/JACoW-Cyclotrons2019-TUP009
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About • |
paper received ※ 12 September 2019 paper accepted ※ 25 September 2019 issue date ※ 20 June 2020 |
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