Determining burnup, cooling time and operational history of VVER-440 spent fuel assemblies based on in-situ gamma spectrometry at Paks Nuclear Power Plant

Péter Kirchknopf,István Almási,Gábor Radócz, Imre Nemes, Péter Völgyesi,Imre Szalóki

Annals of Nuclear Energy（2022）

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摘要

•The 134Cs2/(106Ru137Cs) ratio shows very good correlation with the fuel burnup.•Burnup can be estimated directly from the measurement using 134Cs2/(106Ru137Cs).•The 110mAg/134Cs and 134Cs/154Eu ratios are useful for cooling time prediction.•Experimental determination of some typical burnup history patterns is possible.

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关键词

BU,CT,IE,HRGS,HPGe,MCA,PCA,RMSE,MAE

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