Quantitative analysis of rhenium in irradiated tungsten

doi:10.1016/j.jnucmat.2021.153014

	Quantitative analysis of rhenium in irradiated tungsten
	Warnicke, P.2; Ramanantoanina, H.1; Li, J.3; Dai, Y.2; Pouchon, M. A.2
刊名	JOURNAL OF NUCLEAR MATERIALS
	2021-10-01
卷号	554 页码:9
关键词	XANES EXAFS Tungsten Rhenium Transmutation Plasma-facing material Spallation neutron irradiation
ISSN号	0022-3115
DOI	10.1016/j.jnucmat.2021.153014
通讯作者	Warnicke, P.(peter.warnicke@psi.ch)
英文摘要	Pure tungsten (W), irradiated to 3.5 dpa in a target of the Swiss neutron spallation source (SINQ), was characterized using high-sensitivity HPGe gamma ray spectroscopy to identify the present radionuclides. Synchrotron X-ray absorption spectroscopy was used to quantify the amount of Re produced in the irra-diated W. An atomic concentration of 0.61% Re in the irradiated W was determined from the height of the L3-edge X-ray absorption edge jump. Analysis of the local atomic structure from the extended X-ray absorption fine structure (EXAFS) spec-tra indicates that rhenium (Re) produced in the system is mainly coordinated by W atoms and partly coordinated by void defects. First-principles density functional theory calculations confirm a positive for-mation energy for a double Re defect in the system, supporting the conclusion that Re cluster formation is suppressed. (c) 2021 The Author(s). Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license ( http://creativecommons.org/licenses/by-nc-nd/4.0/ )
WOS关键词	NEUTRON-IRRADIATION ; ENERGY ; MICROSTRUCTURE ; TRANSMUTATION ; YIELDS
WOS研究方向	Materials Science ; Nuclear Science & Technology
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:000678130400003
内容类型	期刊论文
源URL	[http://119.78.100.186/handle/113462/136753]
专题	中国科学院近代物理研究所
通讯作者	Warnicke, P.
作者单位	1.Johannes Gutenberg Univ Mainz, Dept Chem, D-55128 Mainz, Germany 2.Paul Scherrer Inst, CH-5232 Villigen, Switzerland 3.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China
推荐引用方式 GB/T 7714	Warnicke, P.,Ramanantoanina, H.,Li, J.,et al. Quantitative analysis of rhenium in irradiated tungsten[J]. JOURNAL OF NUCLEAR MATERIALS,2021,554:9.
APA	Warnicke, P.,Ramanantoanina, H.,Li, J.,Dai, Y.,&Pouchon, M. A..(2021).Quantitative analysis of rhenium in irradiated tungsten.JOURNAL OF NUCLEAR MATERIALS,554,9.
MLA	Warnicke, P.,et al."Quantitative analysis of rhenium in irradiated tungsten".JOURNAL OF NUCLEAR MATERIALS 554(2021):9.