Leaching test of gamma-emitting Cs, Ru, Zr, and U from neutron-irradiated UO 2/ZrO 2 solid solutions in non-filtered surface seawater

Takayuki Sasaki, Yuu Takeno, Akira Kirishima, Nobuaki Sato

研究成果: Article査読

10 被引用数 (Scopus)

抄録

The leaching behaviors of gamma-ray radionuclides, Cs-137, Ru-103, and Zr-95, produced by neutron irradiation of UO2/ZrO2 solid solutions, in real surface seawater were investigated under atmospheric conditions. The fraction of radionuclide inventory leached in the seawater was in the order of Cs > Ru (∼U) 蠑 Zr, indicating that the fraction was significantly affected by the chemical state of the radionuclides. However, the amount of soluble nuclides was proportional to that of uranium regardless of whether the solid solutions were prepared under an oxidative or reductive environment. A tiny fraction of Ru was filtered out by a 3 kDa nominal molecular weight cut-off filter after the 160 d leaching test, suggesting a different behavior from its ionic form, but Cs and U did not form a colloid-like species in seawater.

本文言語English
ページ(範囲)147-151
ページ数5
ジャーナルjournal of nuclear science and technology
52
2
DOI
出版ステータスPublished - 2015 2 1

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Nuclear Energy and Engineering

フィンガープリント 「Leaching test of gamma-emitting Cs, Ru, Zr, and U from neutron-irradiated UO <sub>2</sub>/ZrO <sub>2</sub> solid solutions in non-filtered surface seawater」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

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