• A.Ageyev, A.Bakay, E.Kashtanov, S.Kozub, M.Muraviev, A.Orlov, P.Slabodchikov, A.Khartchenko, S.Zintchenko
  IHEP, Protvino, Russia

The cryogenic and vacuum system is built to cool by superfluid helium at 1.8 K two niobium cavities of the RF superconducting kaon separator being under construction at IHEP. First commissioning runs were carried out. During the last run both cavities were successfully cooled down to the operating temperature and cryostated for several days. System description, test results and planned improvements are presented.

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