Application of High-Energy-Resolution X-ray Absorption Spectroscopy to actinide chemistry; A Case study of assessing U(V) electronic structure in FeUO $_{4}$

Yomogida, Takumi

High-energy-resolution fluorescence detection-X-ray absorption near-edge structure (HERFD-XANES) spectroscopy has enabled us to discuss the electronic structure of actinide compounds in more detail than with conventional XANES spectroscopy. We are conducting research with the aim of contributing to the prediction of the migration behavior of trace actinide elements in the environment by performing actinide speciation in various environmental samples. In this paper, we introduce the content of the discussion of the electronic state of U from the perspective of basic science, which is important for advancing application of HERFD-XANES spectroscopy to environmental science.

Language	:	Japanese
Journal	:	Hoshako
Volume	:	38
Number	:	1
Pages	:	p.19 - 25
Publication Year/Month	:	2025/01
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Keywords	:	ウラン; U(V); HERFD-XANES; FDMNES
Research Facility	:	第4研究棟 ;SPring-8(大型放射光施設)
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Registration No. : AA20240435
JAEA Abstracts No. : 53000592
Paper Submission No. : 29386

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