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Cs chemisorption behaviour onto stainless steel during LWR severe accident, 1; Experimental study on Cs chemisorption behaviour at temperature around 600$$^{circ}$$C

Suzuki, Eriko   ; Takase, Gaku; Nakajima, Kunihisa  ; Nishioka, Shunichiro; Osaka, Masahiko  

In order to estimate the cesium (Cs) distribution in the reactor pressure vessel under severe accident (SA), Cs chemisorption behaviour onto stainless steel have been investigated. In our previous study on Cs chemisorption behaviour at above 800$$^{circ}$$C, it was found that the Cs silicate compounds were formed as Cs chemisorbed compounds. In this study, Cs chemisorption tests at lower temperatures around 600$$^{circ}$$C were carried out to investigate the Cs chemisorbed compounds at lower temperatures. As a result, cesium ferrate compounds were formed and it was suggested that the chemical reaction at lower temperatures would be different from that at above 800$$^{circ}$$C.

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Japanese

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Meeting title

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日本原子力学会2019年春の年会

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2019/03

Location (city)

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水戸

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日本

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Keywords

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セシウム; 化学吸着; 福島第一原子力発電所事故; Fukushima Daiichi Nuclear Power Station Accident

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Press Release

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Article of JAEA R&D Review

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- Accesses

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