Overall Design of the ADS Injector I Cryogenic System in China.

The accelerator driven sub-crit. system (ADS) in China is a kind of transmutation machine to minimize nuclear waste. As one of the important parts in ADS, injector will be built at IHEP,CAS. Injector I needs two cryomodules operating at 2K cryogenic environment to realize a 10MeVproton beam energy. Each cryomodule includes seven spoke cavities and sevensuperconducting magnets. This paper describes the overall design of the cryogenic system, including the cooling flow chart, heat loads estn., the structure of the operation cryomodule and some of the key components. [on SciFinder(R)]