{"created":"2023-05-15T14:34:51.245185+00:00","id":45061,"links":{},"metadata":{"_buckets":{"deposit":"6c21fc60-e25c-4266-86ff-d201040c0395"},"_deposit":{"created_by":1,"id":"45061","owners":[1],"pid":{"revision_id":0,"type":"depid","value":"45061"},"status":"published"},"_oai":{"id":"oai:repo.qst.go.jp:00045061","sets":["1"]},"author_link":["447467","447465","447469","447470","447474","447466","447473","447464","447471","447472","447468"],"item_8_biblio_info_7":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2008-01","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"1","bibliographicPageEnd":"42","bibliographicPageStart":"37","bibliographicVolumeNumber":"275","bibliographic_titles":[{"bibliographic_title":"Journal of Radioanalytical and Nuclear Chemistry"}]}]},"item_8_description_5":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"Due to the different 240Pu/239Pu atom ratios from different sources of Pu in the environment, Pu isotopes have been widely used for source identification of radionuclides in sediments. In this work, using sector-field ICP-MS, we investigated Pu inventory and its isotopic composition in a lacustrine sediment core collected in Chenghai Lake, SW China. The 240Pu/239Pu atom ratios in this sediment core ranged from 0.166 to 0.271 with a mean of 0.195 +/-0.021; 0.021, which was slightly higher than that of global fallout. The 239+240Pu/137Cs activity ratios ranged from 0.0155 to 0.0411, with a mean of 0.0215, and the 239+240Pu inventory was 35.4 MBq/km2; both 239+240Pu/137Cs activity ratio and Pu inventory were close to those values of global fallout at 20 - 30 N. Three peaks were observed for both 137Cs and 239+240Pu activities in the examined sediment core; they most probably indicated the maximum deposition of global fallout between 1963 and 1964, the fallout from a series of Chinese nuclear tests during the 1970s, and the deposition of resuspended Pu-bearing particles from the Chernobyl accident. Therefore, the vertical profile of Pu isotopes should provide useful time markers for rapid dating of recent sediments.","subitem_description_type":"Abstract"}]},"item_8_source_id_9":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"0236-5731","subitem_source_identifier_type":"ISSN"}]},"item_access_right":{"attribute_name":"アクセス権","attribute_value_mlt":[{"subitem_access_right":"metadata only access","subitem_access_right_uri":"http://purl.org/coar/access_right/c_14cb"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"Zheng, Jian"}],"nameIdentifiers":[{"nameIdentifier":"447464","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Liao, Haiqing"}],"nameIdentifiers":[{"nameIdentifier":"447465","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Wu, Fengchang"}],"nameIdentifiers":[{"nameIdentifier":"447466","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Yamada, Masatoshi"}],"nameIdentifiers":[{"nameIdentifier":"447467","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Fu, Pingqing"}],"nameIdentifiers":[{"nameIdentifier":"447468","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Liu, Chongqiang"}],"nameIdentifiers":[{"nameIdentifier":"447469","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Wan, Guojiang"}],"nameIdentifiers":[{"nameIdentifier":"447470","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"鄭 建","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"447471","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Ｌｉａｏ Ｈａｉｑｉｎｇ","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"447472","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Ｗｕ Ｆｅｎｇｃｈａｎｇ","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"447473","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"山田 正俊","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"447474","nameIdentifierScheme":"WEKO"}]}]},"item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"eng"}]},"item_resource_type":{"attribute_name":"資源タイプ","attribute_value_mlt":[{"resourcetype":"journal article","resourceuri":"http://purl.org/coar/resource_type/c_6501"}]},"item_title":"Vertical distributions of 239+240Pu activity and 240Pu/239Pu atom ratio in sediment core of Lake Chenghai, SW China","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Vertical distributions of 239+240Pu activity and 240Pu/239Pu atom ratio in sediment core of Lake Chenghai, SW China"}]},"item_type_id":"8","owner":"1","path":["1"],"pubdate":{"attribute_name":"公開日","attribute_value":"2007-12-27"},"publish_date":"2007-12-27","publish_status":"0","recid":"45061","relation_version_is_last":true,"title":["Vertical distributions of 239+240Pu activity and 240Pu/239Pu atom ratio in sediment core of Lake Chenghai, SW China"],"weko_creator_id":"1","weko_shared_id":-1},"updated":"2023-05-16T00:08:09.310023+00:00"}