Applying an improved method to measure Cs-134, Cs-135, and Cs-137 activities and their atom ratios in marine sediments collected close to the Fukushima Daiichi Nuclear Power Plant
文献类型：期刊论文
| 作者 | Yang GS(杨国胜); Yang, GS; Kato, Y; Tazoe, H; Yamada, M |
| 刊名 | GEOCHEMICAL JOURNAL
 |
| 出版日期 | 2018 |
| 卷号 | 52期号:2页码:219-226 |
| 关键词 | Cs-135/Cs-137 atom ratio Cs-134/Cs-137 activity ratio Fukushima Daiichi Nuclear Power Plant accident marine sediment triple-quadrupole inductively coupled plasma-mass spectrometry |
| ISSN号 | 0016-7002 |
| DOI | 10.2343/geochemj.2.0484 |
| 文献子类 | Article |
| 英文摘要 | The Cs-135/Cs-137 atom ratio has been proved to be a reliable tracer for radiocesium source identification in the studies on the Fukushima Daiichi Nuclear Power Plant (FDNPP) accident. However, due to the technical challenge to measure Cs-135, no Cs-135 data are available for Japanese river or ocean sediments. In the present study, the vertical distributions of Cs-134 and Cs-137 activities and their ratios in two marine sediment cores, collected offshore from the FDNPP site immediately after the accident, were measured by gamma spectrometry. A conventional introduction system was replaced by an APEX-Q system, by which it was possible to get 6.5 times higher Cs intensities and then Cs-135 was analyzed by triple-quadrupole inductively coupled plasma-mass spectrometry. From the vertical distributions, it was seen that the deposition of Cs-134 and Cs-137 presented an increasing trend, which indicated continuous radiocesium input into the ocean and deposition from sea water onto the sea floor up to the collection date. Therefore, the Cs-134/Cs-137 activity ratios (0.866-1.16) and Cs-135/Cs-137 atom ratios (0.249-0.343) (all decay-corrected to March 11, 2011) in marine sediment core samples showed the fingerprints of radiocesium in the oceanic environment were mainly derived from the FDNPP. |
| 电子版国际标准刊号 | 1880-5973 |
| WOS关键词 | PLASMA-MASS SPECTROMETRY ; ENVIRONMENTAL-SAMPLES ; RADIOCESIUM ; ACCIDENT ; ISOTOPES ; RADIONUCLIDES ; SEPARATION ; RELEASE |
| WOS研究方向 | Geochemistry & Geophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000431554900015 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/285884]  |
| 专题 | 高能物理研究所_核技术应用研究中心 |
| 作者单位 | 中国科学院高能物理研究所 |
| 推荐引用方式 GB/T 7714 | Yang GS,Yang, GS,Kato, Y,et al. Applying an improved method to measure Cs-134, Cs-135, and Cs-137 activities and their atom ratios in marine sediments collected close to the Fukushima Daiichi Nuclear Power Plant[J]. GEOCHEMICAL JOURNAL,2018,52(2):219-226. |
| APA | 杨国胜,Yang, GS,Kato, Y,Tazoe, H,&Yamada, M.(2018).Applying an improved method to measure Cs-134, Cs-135, and Cs-137 activities and their atom ratios in marine sediments collected close to the Fukushima Daiichi Nuclear Power Plant.GEOCHEMICAL JOURNAL,52(2),219-226. |
| MLA | 杨国胜,et al."Applying an improved method to measure Cs-134, Cs-135, and Cs-137 activities and their atom ratios in marine sediments collected close to the Fukushima Daiichi Nuclear Power Plant".GEOCHEMICAL JOURNAL 52.2(2018):219-226. |
入库方式： OAI收割
来源：高能物理研究所
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