Identification, isolation, and characterization of a novel type of Fukushima-derived microparticle
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<jats:title>Abstract</jats:title><jats:p>In the course of the Fukushima nuclear accident, radionuclides were released in various forms, including so-called radiocesium-bearing microparticles (CsMP). So far, four types of CsMP were described: Type A is smaller in size (< 10 μm), Types B, C, and D are larger (> 100 μm). In this work, we present a novel type of CsMP (proclaimed Type E). Three particles of Type E were extracted from a contaminated blade of grass that was sampled 1.5 km from the Fukushima Daiichi nuclear power plant in late 2011. They were located using autoradiography, isolated using an optical microscope and micromanipulator, and characterized using scanning electron microscopy, energy dispersive x-ray spectroscopy, and low-level gamma-ray spectrometry. Type E CsMPs are 10–20 μm in size and exhibit an unusually low and barely detectable <jats:sup>137</jats:sup>Cs activity of only ≤ 10 mBq per particle. Their brittle and fragile character may indicate a high surface tension.</jats:p>
収録刊行物
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- Journal of Radioanalytical and Nuclear Chemistry
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Journal of Radioanalytical and Nuclear Chemistry 331 (12), 5333-5341, 2022-11-11
Springer Science and Business Media LLC
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詳細情報 詳細情報について
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- CRID
- 1360298757412527488
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- ISSN
- 15882780
- 02365731
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- データソース種別
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- Crossref
- KAKEN