Cryogenic Stand for Testing Cryostats with Superconducting RF Resonators at 1.8 K

A separated K-meson complex is being designed at the Institute of High-Energy Physics. One of the main components is an rf separator consisting of two superconducting niobium resonators. A newly developed cryogenic-vacuum stand for testing resonators is described. The results of cryogenic–vacuum tests of the system for cryogenic support of the resonators at 1.8–4.2 K are presented.