期刊
CHEMISTRY LETTERS
卷 49, 期 11, 页码 1294-1297出版社
CHEMICAL SOC JAPAN
DOI: 10.1246/cl.200374
关键词
Radiocesium-bearing microparticle; Radiocesium-sorbing mineral; Acid treatment
资金
- Japan Society for the Promotion of Science [16H02437, 17H03130, 19H01145, 20K19954]
- Japan Atomic Energy Agency
- Ministry of Agriculture, Forestry, and Fisheries
- Grants-in-Aid for Scientific Research [20K19954, 19H01145, 16H02437, 17H03130] Funding Source: KAKEN
Radiocesium (RCs)-carrying materials derived from the Fukushima nuclear accident consist of RCs-sorbing minerals (CsSMs) and RCs-bearing silicate-glass microparticles (CsMPs). We reveal that while acid treatment has little effect on CsMPs, it significantly decreases the radioactivity of CsSMs due to dissolution. Using this difference, we propose a novel approach to estimating the contributions of CsMPs and CsSMs to total radioactivity of contaminated materials using autoradiography or gamma-ray spectroscopy. Distribution of CsMPs in samples can also be elucidated without time-consuming microscopic analysis.
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