Results of the first on-line experiment of the laser ion source

CORC > 近代物理研究所 > 中国科学院近代物理研究所 > 近代物理研究所知识存储（2010之前）

	Results of the first on-line experiment of the laser ion source
	Yang, YF ; Zhao, ZZ ; Zheng, ZM ; Zu, KL ; Wang, XD ; Liu, JH ; Zhao, XY ; Wang, TQ ; Guo, YX ; Guo, B
刊名	HIGH ENERGY PHYSICS AND NUCLEAR PHYSICS-CHINESE EDITION
	2002-02-01
卷号	26 期号:2 页码:134-140
关键词	laser ion source on-line isotope separator element selectivity isomer
ISSN号	0254-3052
英文摘要	The importance of using a laser ion source in the on-line isotope separator, the principle of laser ion source, laser technique and the structure of hot capillary laser ion source and target chamber are introduced. A high repetition frequncy copper vapor laser and three dye lasers were used. The capillary is made of Nb with inside diameter of 1.7mm and effective length of 3 cm. It was heated by 50-100A direct current and temperature of 1800-2700K can be achieved. The nuclear clear reaction channel used in the first on-line experiment is 50MeV/u O-18 + Ta-nat --> Yb-167 (T-1/2 = 17.5min). A joint operation of accelerator, on-line isotope separator and laser system has been realized. A total separation efficiency of 0.2 % is obtained by comparison of the measured yield of Yb-167 with the calculated yield of Yb-167 by using production cross-section, beam intensity, collection time and the thickness of target. A element selectivity of 3.2 is deduced from the ratio of the corresponding peak areas of Yb-167 and Lu-167 in the gamma spectra of laser on and laser off. A new high spin isomer with long half-life of Yb-167 was found. The methods that may be used to improve the efficiency of laser ion source are discussed.
WOS关键词	SEPARATOR
WOS研究方向	Physics
语种	英语
出版者	SCIENCE CHINA PRESS
WOS记录号	WOS:000173924800008
公开日期	2010-10-29
内容类型	期刊论文
源URL	[http://ir.imp.cas.cn/handle/113462/1509]
专题	近代物理研究所_近代物理研究所知识存储（2010之前）
通讯作者	Yang, YF
作者单位	1.McGill Univ, Dept Phys, Montreal, PQ, Canada 2.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China 3.Tsing Hua Univ, Dept Phys, Beijing 100084, Peoples R China
推荐引用方式 GB/T 7714	Yang, YF,Zhao, ZZ,Zheng, ZM,et al. Results of the first on-line experiment of the laser ion source[J]. HIGH ENERGY PHYSICS AND NUCLEAR PHYSICS-CHINESE EDITION,2002,26(2):134-140.
APA	Yang, YF.,Zhao, ZZ.,Zheng, ZM.,Zu, KL.,Wang, XD.,...&Lee, JKP.(2002).Results of the first on-line experiment of the laser ion source.HIGH ENERGY PHYSICS AND NUCLEAR PHYSICS-CHINESE EDITION,26(2),134-140.
MLA	Yang, YF,et al."Results of the first on-line experiment of the laser ion source".HIGH ENERGY PHYSICS AND NUCLEAR PHYSICS-CHINESE EDITION 26.2(2002):134-140.