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Report No.

Transmission nuclear resonance fluorescence demonstration experiment for a realistic container scenario for Fukushima melted fuel

Angell, C.; Hayakawa, Takehito; Shizuma, Toshiyuki; Hajima, Ryoichi; Karwowski, H.*; Silano, J.*

Nuclear resonance fluorescence in transmission is a promising method for precision assay of the $$^{239}$$Pu in melted fuel from Fukushima. To demonstrate the method can be used for assaying melted fuel inside its final storage container, and that the measurement is unaffected by the shielding material, we carried out a realistic measurement on a proxy target (Al) placing similar amounts of expected shielding material upstream. This demonstrated that the container material does not influence the assay.



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