Author: Cailliau, P.
Paper Title Page
TUP009 Cyclotron Cavity Pollution Recovery 169
  • J. Dabin, B. Adant, P. Cailliau, K. Ellis, E. Forton, J. Mandrillon, T.S. Ponter, P. Verbruggen
    IBA, Louvain-la-Neuve, Belgium
  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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About • paper received ※ 12 September 2019       paper accepted ※ 25 September 2019       issue date ※ 20 June 2020  
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