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, Guosheng1,2,3; Kato, Yoshihisa4; Tazoe, Hirofumi1; Yamada, Masatoshi1 |
| 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 |
| 通讯作者 | Yamada, masatoshi(myamada@hirosaki-u.ac.jp) |
| 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. |
| WOS关键词 | PLASMA-MASS SPECTROMETRY ; ENVIRONMENTAL-SAMPLES ; RADIOCESIUM ; ACCIDENT ; ISOTOPES ; RADIONUCLIDES ; SEPARATION ; RELEASE |
| WOS研究方向 | Geochemistry & Geophysics |
| WOS类目 | Geochemistry & Geophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000431554900015 |
| 出版者 | GEOCHEMICAL SOC JAPAN |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2177581 |
| 专题 | 高能物理研究所 |
| 通讯作者 | Yamada, Masatoshi |
| 作者单位 | 1.Hirosaki Univ, Dept Radiat Chem, Inst Radiat Emergency Med, 66-1 Hon Cho, Hirosaki, Aomori 0368564, Japan 2.Chinese Acad Sci, Inst High Energy Phys, Div Nucl Technol & Applicat, Beijing 100049, Peoples R China 3.Beijing Engn Res Ctr Radiog Tech & Equipment, Beijing 100049, Peoples R China 4.Tokai Univ, Sch Marine Sci & Technol, Orido 3-20-1, Shimizu, Shizuoka 4248610, Japan |
| 推荐引用方式 GB/T 7714 | Yang, Guosheng,Kato, Yoshihisa,Tazoe, Hirofumi,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 | Yang, Guosheng,Kato, Yoshihisa,Tazoe, Hirofumi,&Yamada, Masatoshi.(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 | Yang, Guosheng,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： iSwitch采集
来源：高能物理研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。