Institute of High Energy Physics;
Chinese Academy of Sciences;
Beijing 100049;
China;
Key Laboratory of Particle Acceleration Physics and Technology;
CAS;
Beijing 100049;
China;
Center for Superconducting RF and Cryogenics;
Institution of High Energy Physics;
Beijing 100049;
China;
ADS; Superfluid; helium; Cryogenic; system; Cryomodule; J–T; heat; exchanger;