Stable Operation of the 2 K Cryogenic System for the Superconducting Accelerator at Peking University

【摘要】 A superconducting energy recovery linac test facility(PKU-SETF) was built at Peking University,and a 2K cryogenic system,which is the first closed-loop 2K cryogenic system for a superconducting accelerator in China,was constructed for the 1.3 GHz 3+1/2 cell dc-SRF injector.The main accelerator consists of two nine-cell TESLA-type superconducting cavities of the PKU-SETF.The commissioning and stable operation of this 2K cryogenic system was carried out.A helium pressure stability of better than ±0.1 mbar and a total refrigeration capacity of 65 W at a temperature of 2K was reached.更多还原

【Abstract】 A superconducting energy recovery linac test facility(PKU-SETF) was built at Peking University,and a 2K cryogenic system,which is the first closed-loop 2K cryogenic system for a superconducting accelerator in China,was constructed for the 1.3 GHz 3+1/2 cell dc-SRF injector.The main accelerator consists of two nine-cell TESLA-type superconducting cavities of the PKU-SETF.The commissioning and stable operation of this 2K cryogenic system was carried out.A helium pressure stability of better than ±0.1 mbar and a total refrigeration capacity of 65 W at a temperature of 2K was reached.更多还原