X-ray transitions studied for decelerated bare and H-like uranium ions at the ESR electron cooler

doi:10.1016/S0168-583X(03)00561-5

	X-ray transitions studied for decelerated bare and H-like uranium ions at the ESR electron cooler
	Gumberidze, A ; Stohlker, T ; Bednarz, G ; Beyer, HF ; Bosch, F ; Cai, X ; Hagmann, S ; Klepper, O ; Kozhuharov, C ; Liesen, D
	2003-05
关键词	RR QED ESR
卷号	205
DOI	10.1016/S0168-583X(03)00561-5
页码	374-377
英文摘要	Here we report on X-ray spectra induced by spontaneous capture of free electrons into decelerated bare- and hydrogen-like uranium ions which we measured recently at the cooler section of the ESR storage ring. The most intense lines observed in spectra can be attributed to direct transition of electrons into the K shell of the projectile ions and to characteristic L --> K (Lyalpha) transitions. Radiative recombination lines into the K shell of bare and H-like uranium can be exploited for measuring the two-electron contribution to the ground state binding energy in helium-like uranium. The goal is to probe for high-Z ions bound-state QED corrections which are of the order of alpha(2). Besides the dominant characteristic L --> K transitions, the strongly reduced Bremsstrahlung (due to the low cooler voltage applied to the decelerated ions) allowed us to observe for the very first time RR transitions into the L shell as well as the balmer radiation located at the low-energy part of the spectra. (C) 2003 Elsevier Science B.V. All rights reserved.
会议录	NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS
会议录出版者	ELSEVIER SCIENCE BV
会议录出版地	PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
语种	英语
WOS研究方向	Instruments & Instrumentation ; Nuclear Science & Technology ; Physics
WOS记录号	WOS:000183211200072
内容类型	会议论文
源URL	[http://119.78.100.186/handle/113462/57644]
专题	中国科学院近代物理研究所
通讯作者	Gumberidze, A
作者单位	1.GSI Darmstadt, D-6100 Darmstadt, Germany 2.Univ Frankfurt, IKF, D-6000 Frankfurt, Germany 3.Tbilisi State Univ, Tblisi, GA USA 4.IMP, Lanzhou, Peoples R China 5.Krakow Tech Univ, Inst Phys, PL-31155 Krakow, Poland 6.Kansas State Univ, Manhattan, KS 66506 USA 7.INP, Krakow, Poland 8.Fudan Univ, Shanghai 200433, Peoples R China
推荐引用方式 GB/T 7714	Gumberidze, A,Stohlker, T,Bednarz, G,et al. X-ray transitions studied for decelerated bare and H-like uranium ions at the ESR electron cooler[C]. 见:.