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RF H-Minus Ion Source Development in China Spallation Neutron Source
Chen WD(陈卫东); 欧阳华甫; Xiao YC(肖永川); Liu SJ(刘盛进); Lv YJ(吕永佳); Cao XX(曹秀霞); Huang T(黄涛); Xue KJ(薛康佳); Chen; W.; H. Ouyang; Y. Xiao; S. Liu; Y. Lü; X. Cao; T. Huang and K. Xue
Source PublicationAIP Conference Proceedings
SubtypeProceedings Paper
AbstractChina Spallation Neutron Source (CSNS) phase-I project currently uses a Penning surface plasma H-ion source, which has a life time of several weeks with occasional sparks between high voltage electrodes. To extend the life time of the ion source and prepare for the CSNS phase-II, we are trying to develop a RF negative hydrogen ion source with external antenna. The configuration of the source is similar to the DESY external antenna ion source and SNS ion source. However several changes are made to improve the stability and the life time. Firstly, Si3N4 ceramic with high thermal shock resistance, and high thermal conductivity is used for plasma chamber, which can endure an average power of 2000W. Secondly, the water-cooled antenna is brazed on the chamber to improve the energy efficiency. Thirdly, cesium is injected directly to the plasma chamber if necessary, to simplify the design of the converter and the extraction. Area of stainless steel exposed to plasma is minimized to reduce the sputtering and degassing. Instead Mo, Ta, and Pt coated materials are used to face the plasma, which makes the self-cleaning of the source possible.
Conference Title5th International Symposium on Negative Ions, Beams and Sources (NIBS)
Conference PlaceSci & Technol Facilities Council, Oxford, ENGLAND
Conference DateSEP 12-16, 2016
WOS KeywordSNS
Indexed ByCPCI ; ADS
WOS Research AreaPhysics
WOS SubjectPhysics, Applied ; Physics, Fluids & Plasmas
WOS IDWOS:000417411100027
ADS Bibcode2017AIPC.1869c0013C
ADS URLhttps://ui.adsabs.harvard.edu/abs/2017AIPC.1869c0013C
ADS CITATIONShttps://ui.adsabs.harvard.edu/abs/2017AIPC.1869c0013C/citations
Citation statistics
Cited Times:0 [ADS]
Document Type期刊论文
First Author AffilicationInstitute of High Energy
Recommended Citation
GB/T 7714
Chen WD,欧阳华甫,Xiao YC,et al. RF H-Minus Ion Source Development in China Spallation Neutron Source[J]. AIP Conference Proceedings,2017,1869:30013.
APA 陈卫东.,欧阳华甫.,肖永川.,刘盛进.,吕永佳.,...&T. Huang and K. Xue.(2017).RF H-Minus Ion Source Development in China Spallation Neutron Source.AIP Conference Proceedings,1869,30013.
MLA 陈卫东,et al."RF H-Minus Ion Source Development in China Spallation Neutron Source".AIP Conference Proceedings 1869(2017):30013.
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