The potential for AMS analysis of Be-10 using BeF-

doi:10.1016/j.nimb.2004.04.041

IEECAS OpenIR > 黄土与第四纪地质国家重点实验室（1985-2004）

	The potential for AMS analysis of Be-10 using BeF-
	Zhao, XL; Litherland, AE; Doupe, JP; Kieser, WE
	2004-08
发表期刊	NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS
卷号	223 页码:199-204
文章类型	Article; Proceedings Paper
摘要	The potential for the measurement of Be-10/Be-9 ratios near 10(-12), using (BeF-)-Be-10-F-19 ions and small accelerator mass spectrometry (AMS) systems, is described. In comparison with the use of (10)Be16O(-) ions the interference from the B-10 isobar is reduced by about five orders of magnitude. This is because molecular ions of mass 29 containing B-10 are much rarer than ions of mass 26 such as BO-. In addition, the ion HBeF- has not been observed, thereby reducing a possible interference from BeH2+, which allows Be-10(2+) to be counted with small AMS systems. Three molecular ions, BF-, BBeB- and H2BO-, are found to be mainly responsible for producing the B-10(2+) ions entering the final detector. The observation of weak beams of BF- is consistent with, but does not prove, the theoretical prediction that the ion will exist only as an excited metastable state. In that case a lifetime longer than similar to1 mus would be needed to explain the observed flux of BF-. The overall efficiency when using BeF- is expected to be roughly comparable to using BeO- on similar AMS systems, because of the simplifications introduced, but possibly with greater potential for further development. (C) 2004 Elsevier B.V. All rights reserved.
关键词	Be-10 AMS BeF- BF- FBeH- BBeB- H2BO-
学科领域	Instruments & Instrumentation ; Nuclear Science & Technology ; Physics
DOI	10.1016/j.nimb.2004.04.041
收录类别	SCI ; SCIE
语种	英语
WOS研究方向	Instruments & Instrumentation ; Nuclear Science & Technology ; Physics, Atomic, Molecular & Chemical ; Physics, Nuclear
WOS记录号	WOS:000223752300039
出版者	ELSEVIER SCIENCE BV
引用统计	被引频次：25[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ieecas.cn/handle/361006/11982
专题	黄土与第四纪地质国家重点实验室（1985-2004）
推荐引用方式 GB/T 7714	Zhao, XL,Litherland, AE,Doupe, JP,et al. The potential for AMS analysis of Be-10 using BeF-[J]. NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS,2004,223:199-204.
APA	Zhao, XL,Litherland, AE,Doupe, JP,&Kieser, WE.(2004).The potential for AMS analysis of Be-10 using BeF-.NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS,223,199-204.
MLA	Zhao, XL,et al."The potential for AMS analysis of Be-10 using BeF-".NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS 223(2004):199-204.