{"created":"2023-06-20T14:54:09.964226+00:00","id":22435,"links":{},"metadata":{"_buckets":{"deposit":"662f5c05-c4b0-4da3-86d6-ee3566df0b9e"},"_deposit":{"created_by":1,"id":"22435","owners":[1],"pid":{"revision_id":0,"type":"depid","value":"22435"},"status":"published"},"_oai":{"id":"oai:jaxa.repo.nii.ac.jp:00022435","sets":["1887:1888"]},"author_link":["210347","210345","210351","210350","210352","210354","210343","210348","210355","210356","210349","210344","210353","210346"],"item_7_biblio_info_10":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2014-06","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"ists29","bibliographicPageEnd":"Pb_64","bibliographicPageStart":"Pb_59","bibliographicVolumeNumber":"12","bibliographic_titles":[{},{"bibliographic_title":"Transactions of the Japan Society for Aeronautical and Space Sciences, Aerospace Technology Japan","bibliographic_titleLang":"en"}]}]},"item_7_description_17":{"attribute_name":"抄録（英）","attribute_value_mlt":[{"subitem_description":"An Electrodynamic tether (EDT) is an attractive propulsion device for active debris removal systems. One of the key components of the EDT system is an electron emission device, and we have studied a field emission cathode (FEC) using carbon nanotubes (CNTs) because of its simplicity and potential capabilities. Since EDT systems are operated in low earth orbit (LEO), the CNTs in the FEC may be affected by atomic oxygen (AO), so the effect of AO irradiation on the FEC was studied. We conducted AO irradiation tests on FECs using laser detonation beam facilities and compared the pre- and post-irradiation electron emission characteristics. As a result, the FEC could not emit electrons when the total AO fluence of 3×10(exp20) /cm2 was irradiated perpendicular to the emission surface. In this case, CNTs on the emitter surface disappeared by AO irradiation. When the irradiation direction was parallel to the emission surface, on the other hand, the FEC could emit electrons after the irradiation although the required voltage increased up to 1.5 times as high as that of pre-irradiation condition. This comparison indicated that the direction of AO irradiation has strong effect on the performance degradation of the FEC on orbit.","subitem_description_type":"Other"}]},"item_7_description_32":{"attribute_name":"資料番号","attribute_value_mlt":[{"subitem_description":"資料番号: PA1410076000","subitem_description_type":"Other"}]},"item_7_publisher_8":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"日本航空宇宙学会(JSASS)"}]},"item_7_publisher_9":{"attribute_name":"出版者（英）","attribute_value_mlt":[{"subitem_publisher":"The Japan Society for Aeronautical and Space Sciences (JSASS)"}]},"item_7_relation_25":{"attribute_name":"DOI","attribute_value_mlt":[{"subitem_relation_name":[{"subitem_relation_name_text":"info:doi/10.2322/tastj.12.Pb_59"}],"subitem_relation_type_id":{"subitem_relation_type_id_text":"http://dx.doi.org/10.2322/tastj.12.Pb_59","subitem_relation_type_select":"DOI"}}]},"item_7_source_id_21":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"1884-0485","subitem_source_identifier_type":"ISSN"}]},"item_7_text_6":{"attribute_name":"著者所属","attribute_value_mlt":[{"subitem_text_value":"静岡大学"},{"subitem_text_value":"静岡大学"},{"subitem_text_value":"宇宙航空研究開発機構(JAXA)"},{"subitem_text_value":"宇宙航空研究開発機構(JAXA)"},{"subitem_text_value":"神戸大学"},{"subitem_text_value":"静岡大学"},{"subitem_text_value":"静岡大学"}]},"item_7_text_7":{"attribute_name":"著者所属（英）","attribute_value_mlt":[{"subitem_text_language":"en","subitem_text_value":"Shizuoka University"},{"subitem_text_language":"en","subitem_text_value":"Shizuoka University"},{"subitem_text_language":"en","subitem_text_value":"Japan Aerospace Exploration Agency(JAXA)"},{"subitem_text_language":"en","subitem_text_value":"Japan Aerospace Exploration Agency(JAXA)"},{"subitem_text_language":"en","subitem_text_value":"Kobe University"},{"subitem_text_language":"en","subitem_text_value":"Shizuoka University"},{"subitem_text_language":"en","subitem_text_value":"Shizuoka University"}]},"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":"Shimada, Atsuko"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Tanaka, Yoshinobu"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"大川, 恭志"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"松本, 康司"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Tagawa, Masahito"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Matsui, Makoto"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Yamagiwa, Yoshiki"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Shimada, Atsuko","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Tanaka, Yoshinobu","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Ohkawa, Yasushi","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Matsumoto, Koji","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Tagawa, Masahito","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Matsui, Makoto","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Yamagiwa, Yoshiki","creatorNameLang":"en"}],"nameIdentifiers":[{}]}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"Field Emission Cathode; Carbon Nanotube; Atomic Oxygen","subitem_subject_language":"en","subitem_subject_scheme":"Other"}]},"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":"Effect of Atomic Oxygen Irradiation on Field Emission Cathodes in Low Earth Orbit","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Effect of Atomic Oxygen Irradiation on Field Emission Cathodes in Low Earth Orbit","subitem_title_language":"en"}]},"item_type_id":"7","owner":"1","path":["1888"],"pubdate":{"attribute_name":"公開日","attribute_value":"2015-03-26"},"publish_date":"2015-03-26","publish_status":"0","recid":"22435","relation_version_is_last":true,"title":["Effect of Atomic Oxygen Irradiation on Field Emission Cathodes in Low Earth Orbit"],"weko_creator_id":"1","weko_shared_id":-1},"updated":"2023-06-21T03:21:09.343458+00:00"}