RF H-Minus Ion Source Development in China Spallation Neutron Source

doi:10.1063/1.4995733

	RF H-Minus Ion Source Development in China Spallation Neutron Source
	Chen WD(陈卫东); Y. Lü; S. Liu; Y. Xiao; W.; Xue KJ(薛康佳); Cao XX(曹秀霞); Lv YJ(吕永佳); Liu SJ(刘盛进); Xiao YC(肖永川)
刊名	AIP Conference Proceedings
	2017
卷号	1869 页码:30013
ISSN号	0094-243X
DOI	10.1063/1.4995733
文献子类	Proceedings Paper
英文摘要	China 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.
会议地点	Sci & Technol Facilities Council, Oxford, ENGLAND
WOS关键词	SNS
会议日期	SEP 12-16, 2016
WOS研究方向	Physics
语种	英语
ISBN号	978-0-7354-1549-2
WOS记录号	WOS:000417411100027
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/284700]
专题	高能物理研究所_东莞分部高能物理研究所_加速器中心高能物理研究所_粒子天体物理中心中国科学院高能物理研究所_中国散裂中子源
作者单位	中国科学院高能物理研究所
推荐引用方式 GB/T 7714	Chen WD,Y. Lü,S. Liu,et al. RF H-Minus Ion Source Development in China Spallation Neutron Source[J]. AIP Conference Proceedings,2017,1869:30013.
APA	陈卫东.,Y. Lü.,S. Liu.,Y. Xiao.,W..,...&X. Cao.(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.