ADS Injector-I 2 K superfluid helium cryogenic system  

作　　者：Rui Ge Shao-Peng Li Rui-Xiong Han Miao-Fu Xu Liang-Rui Sun Min-Jing Sang Rui Ye Zhuo Zhang Jie-Hao Zhang Xiang-Zhen Zhang Lin Bian Jian-Qin Zhang Mei Li Chang-Cheng Ma Zheng-Ze Chang Tong-Xian Zhao Yong-Cheng Jiang 

机构地区：[1]Institute of High Energy Physics,Chinese Academy of Sciences,Beijing 100049,China [2]Key Laboratory of Particle Acceleration Physics and Technology,CAS,Beijing 100049,China [3]Center for Superconducting RF and Cryogenics,Institution of High Energy Physics,Beijing 100049,China

出　　处：《Nuclear Science and Techniques》2020年第4期79-92,共14页核技术（英文）

摘　　要：The Accelerator Driven Sub-critical(ADS)system is a strategic plan to solve the nuclear waste problem for nuclear power plants in China.High-energy particle accelerators and colliders contain long strings of superconducting devices,superconducting radio frequency cavities,and magnets,which may require cooling by 2 K superfluid helium(HeliumⅡ).2 K superfluid helium cryogenic system has become a research hot spot in the field of superconducting accelerators.In this study,the ADS Injector-I 2 K cryogenic system is examined in detail.The cryogenic system scheme design,key equipment,and technology design,such as the 2 K Joule–Thomson(J–T)heat exchanger and cryomodules CM1+CM2 design,are examined,in addition to the commissioning and operation of the cryogenic system.The ADS Injector-I 2 K cryogenic system is the first 100 W superfluid helium system designed and built independently in China.The ADS proton beam reached 10 Me V at 10 m A in July 2016 and 10 Me V at 2 m A in continuous mode in January 2017 and has been operated reliably for over 15,000 h,proving that the design of ADS Injector-I 2 K cryogenic system,the key equipment,and technology research are reasonable,reliable,and meet the requirements.The research into key technologies provides valuable engineering experience that can be helpful for future projects such as CI-ADS(China Initiative Accelerator-Driven System),SHINE(Shanghai High Repetition Rate XFEL and Extreme Light Facility),PAPS(Platform of Advanced Photon Source Technology),and CEPC(Circular Electron-Positron Collider),thereby developing national expertise in the field of superfluid helium cryogenic systems.

关 键 词：ADS SUPERFLUID HELIUM CRYOGENIC system Cryomodule J–T heat EXCHANGER 

分 类 号：X771[环境科学与工程—环境工程] TL50[核科学技术—核技术及应用]