Design and commissioning of the cryogenic system for NNBI test facility
Abstract Cryopumps are used as the main pumps of cryo-vacuum systems in the Negative Neutral Beam Injectors (NNBI) test facility to pump gas to generate and maintain the vacuum gradient environment. To cool the cryopumps, a 1000 [email protected] K cryogenic system was built, which provides 4.5 K supercritical helium for cryopanels and 77 K liquid nitrogen for radiation baffles. The major cryogenic system components include helium recycle compressor, oil removal system (ORS), cold box, LHe Dewar, cryogenic distribution box, recovery compressor, helium purifier, gas bag, helium tanks, and LN2 tanks. Design, fabrication, and installation of most of the 1000 [email protected] K helium refrigerator was carried out at ASIPP. This paper presents an overview of the design and commissioning of the cryogenic system for NNBI test facility.
Authors
- Kai Yuan (ORCID: https://orcid.org/0000-0002-5851-0113)
- Anyi Cheng (ORCID: https://orcid.org/0000-0002-9753-6842)
- Qiyong Zhang (ORCID: https://orcid.org/0000-0001-6488-5504)
- Zhigang Zhu (ORCID: https://orcid.org/0000-0002-0828-6168)
- Yuanlai Xie (ORCID: https://orcid.org/0000-0002-4453-0391)
- Zhihong Huang (ORCID: https://orcid.org/0000-0002-3913-1177)
- Zhiwei Zhou (ORCID: https://orcid.org/0000-0002-8753-3509)
- Keping Wu
- Dengkui Ma
- Qiaogang Song
- G.H. Xia
Institutions
- Chinese Academy of Sciences (CN)
- Hefei Institutes of Physical Science (CN)
- Institute of Plasma Physics (CN)
Publication Details
- Journal
- IOP Conference Series Materials Science and Engineering
- Published
- 2025-05-01
- DOI
- https://doi.org/10.1088/1757-899x/1327/1/012020
- Primary Topic
- Superconducting Materials and Applications
- Type
- article
- Field-Weighted Citation Impact
- 0.00