NEXAFS analysis and electronic state of cesium in clay minerals
Suzuki, Chikashi; Yoshida, Hiroyuki; Shuh, D. K.*; Suzuki, Shinichi; Yaita, Tsuyoshi
We evaluated Cs M$$_{4,5}$$ near edge X-ray absorption fine structure (NEXAFS) of Cs halides and clay minerals containing Cs using DFT calculation with the NEXAFS of the clay minerals measured. The evaluation of Cs halides indicated that the core-hole strength (CHS) in the NEXAFS measurement was reduced to 0.6, taking into account the strength interaction of the core-hole with the valence-band electrons. On the basis of this result, Cs M$$_{4,5}$$ NEXAFS of the clay mineral was well reproduced including the dominant peak and tail structures using DFT calculation. Moreover the calculation showed that the NEXAFS clearly changed with the displacement of Si atoms to Al in the six-membered ring of clay minerals and little did with the coexist of K atoms with Cs between layers of the clay mineral. In addition, we examined the electronic state of CsCl and the clay mineral containing Cs.
Language : English
Journal : Proceedings of 23rd International Conference on Nuclear Engineering (ICONE-23) (DVD-ROM)
Volume :
Number :
Pages : 6 Pages
Publication Year/Month : 2015/05
Publisher :
Meeting title : 23rd International Conference on Nuclear Engineering (ICONE-23)
Held date : 2015/05
Location (city) : Chiba
Location (country) : Japan
Patent information :
Paper URL :
Keywords : 福島第一原子力発電所事故; Fukushima Daiichi Nuclear Power Station Accident
Research Facility :
Press Release :
Article of JAEA R&D Review :
Cooperating Institute :
Registration No. : BB20150445
JAEA Abstracts No. : 44001153
Paper Submission No. : 17850
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