{"created":"2023-07-25T10:59:17.050551+00:00","id":889,"links":{},"metadata":{"_buckets":{"deposit":"746c79ba-a016-4447-87e2-b69432598886"},"_deposit":{"created_by":4,"id":"889","owners":[4],"pid":{"revision_id":0,"type":"depid","value":"889"},"status":"published"},"_oai":{"id":"oai:nipr.repo.nii.ac.jp:00000889","sets":["1:356:362"]},"author_link":["591","56028","65140"],"item_1_biblio_info_14":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"1978-02","bibliographicIssueDateType":"Issued"},"bibliographicPageEnd":"219","bibliographicPageStart":"209","bibliographicVolumeNumber":"8","bibliographic_titles":[{"bibliographic_title":"Memoirs of National Institute of Polar Research. Special issue"}]}]},"item_1_creator_8":{"attribute_name":"著者名(英)","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"Nishizumi, Kunihiko","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Imamura, Mineo","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Honda, Masatake","creatorNameLang":"en"}],"nameIdentifiers":[{}]}]},"item_1_description_1":{"attribute_name":"ページ属性","attribute_value_mlt":[{"subitem_description":"P(論文)","subitem_description_type":"Other"}]},"item_1_description_12":{"attribute_name":"抄録(英)","attribute_value_mlt":[{"subitem_description":"Cosmic ray-induced long-lived nuclide, ^<53>(Mn) (t_<1/2>=3.7×(10)^6y) has been determined by the neutron activation analysis in Yamato-7301 (j), -7305 (k), and -7304 (m) meteorites, and the contents were found to be 102±6,357±19 and 417±22dpm ^<53>(Mn)/kg Fe respectively. The content found in Yamato-7304 is in good agreement with other chondrites, and the slightly lower value in Yamato-7305,which is also common in others, may be due to some minor effects. In contrast, the content of ^<53>(Mn) in Yamato-7301 is remarkably low, lower than that of any other stone meteorites of relatively long exposure age so far studied. Several possible mechanisms are discussed to explain the puzzling ^<53>(Mn) activity in Yamato-7301 : 1) Long terrestrial age of about 7 m. y., and the decay of ^<53>(Mn). 2) Heavy preatomospheric shielding of more than 70cm, and low production rate of ^<53>(Mn). 3) Multistage irradiation history, and undersaturation of ^<53>(Mn). 4) A combined mechanism of the above two or three factors.","subitem_description_type":"Other"}]},"item_1_source_id_13":{"attribute_name":"雑誌書誌ID","attribute_value_mlt":[{"subitem_source_identifier":"AA00733561","subitem_source_identifier_type":"NCID"}]},"item_1_text_10":{"attribute_name":"著者所属(英)","attribute_value_mlt":[{"subitem_text_language":"en","subitem_text_value":"Department of Chemistry, College of Science, Rikkyo University"},{"subitem_text_language":"en","subitem_text_value":"Institute for Nuclear Study, The University of Tokyo"},{"subitem_text_language":"en","subitem_text_value":"The Institute for Solid State Physics, The University of Tokyo"}]},"item_files":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_date","date":[{"dateType":"Available","dateValue":"1978-02-01"}],"displaytype":"detail","filename":"KJ00000011862.pdf","filesize":[{"value":"1.8 MB"}],"format":"application/pdf","licensetype":"license_6","mimetype":"application/pdf","url":{"label":"KJ00000011862","url":"https://nipr.repo.nii.ac.jp/record/889/files/KJ00000011862.pdf"},"version_id":"d42e45c8-93e0-4853-9eaf-748487a31007"}]},"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":"departmental bulletin paper","resourceuri":"http://purl.org/coar/resource_type/c_6501"}]},"item_title":"Cosmic Ray Induced 53Mn in Yamato-7301(j), -7305(k) and -7304(m) Meteorites","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Cosmic Ray Induced 53Mn in Yamato-7301(j), -7305(k) and -7304(m) Meteorites","subitem_title_language":"en"}]},"item_type_id":"1","owner":"4","path":["362"],"pubdate":{"attribute_name":"公開日","attribute_value":"1978-02-01"},"publish_date":"1978-02-01","publish_status":"0","recid":"889","relation_version_is_last":true,"title":["Cosmic Ray Induced 53Mn in Yamato-7301(j), -7305(k) and -7304(m) Meteorites"],"weko_creator_id":"4","weko_shared_id":4},"updated":"2023-07-25T14:04:41.921261+00:00"}