{"created":"2023-06-20T14:35:48.531069+00:00","id":2088,"links":{},"metadata":{"_buckets":{"deposit":"cc3c3b10-74e3-4fda-8466-824ec785bebf"},"_deposit":{"created_by":1,"id":"2088","owners":[1],"pid":{"revision_id":0,"type":"depid","value":"2088"},"status":"published"},"_oai":{"id":"oai:jaxa.repo.nii.ac.jp:00002088","sets":["1887:1893","9:10:121:127"]},"author_link":["3117","3119","3120","3116","3121","3118"],"item_3_alternative_title_2":{"attribute_name":"その他のタイトル（英）","attribute_value_mlt":[{"subitem_alternative_title":"Statistical Analysis on Aperture Diameter of Flat C/C Grids Using Image Scanner"}]},"item_3_biblio_info_10":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2010-02-26","bibliographicIssueDateType":"Issued"},"bibliographicVolumeNumber":"JAXA-RR-09-004","bibliographic_titles":[{"bibliographic_title":"宇宙航空研究開発機構研究開発報告: イオン加速グリッド耐久認定用数値解析 JIEDI (JAXA Ion Engine Development Initiatives) ツールの研究開発ワークショップ論文集"},{"bibliographic_title":"JAXA Research and Development Report","bibliographic_titleLang":"en"}]}]},"item_3_description_15":{"attribute_name":"会議概要（会議名, 開催地, 会期, 主催者等）（英）","attribute_value_mlt":[{"subitem_description":"Workshop on research and development of JIEDI (JAXA Ion Engine Development Initiatives) tool for numerical evaluation of ion engine grid lifetime","subitem_description_type":"Other"}]},"item_3_description_17":{"attribute_name":"抄録（英）","attribute_value_mlt":[{"subitem_description":"The erosion of accelerator grid aperture due to impingement of charge-exchange ions limits the normal operation of the microwave discharge ion engine, in which long life and high reliability are inherent because of electrode-less plasma generations. A commercially available image scanner and image-analysis software enabled to statistically analze the diameters of the huge number of apertures in the flat C/C grids. This measurement method was applied to the accelerator grids of mu10 ion engine after the 20,000 hour endurance test and mu20 ion engine under ion machining in 30 hours. As a result, it was revealed that the erosion distribution of the mu10 grid had the azimuthal dependence. Moreover, we obtained the design guide for the next mu20 accelerator grid, to make the apertures with tapered shape on the side of upstream.","subitem_description_type":"Other"}]},"item_3_description_18":{"attribute_name":"内容記述","attribute_value_mlt":[{"subitem_description":"形態: カラー図版あり","subitem_description_type":"Other"}]},"item_3_description_19":{"attribute_name":"内容記述（英）","attribute_value_mlt":[{"subitem_description":"Physical characteristics: Original contains color illustrations","subitem_description_type":"Other"}]},"item_3_description_32":{"attribute_name":"資料番号","attribute_value_mlt":[{"subitem_description":"資料番号: AA0064642007","subitem_description_type":"Other"}]},"item_3_description_33":{"attribute_name":"レポート番号","attribute_value_mlt":[{"subitem_description":"レポート番号: JAXA-RR-09-004","subitem_description_type":"Other"}]},"item_3_publisher_8":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"宇宙航空研究開発機構"}]},"item_3_publisher_9":{"attribute_name":"出版者（英）","attribute_value_mlt":[{"subitem_publisher":"Japan Aerospace Exploration Agency (JAXA)"}]},"item_3_source_id_21":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"1349-1113","subitem_source_identifier_type":"ISSN"}]},"item_3_source_id_24":{"attribute_name":"書誌レコードID","attribute_value_mlt":[{"subitem_source_identifier":"AA1192675X","subitem_source_identifier_type":"NCID"}]},"item_3_text_6":{"attribute_name":"著者所属","attribute_value_mlt":[{"subitem_text_value":"東京大学"},{"subitem_text_value":"宇宙航空研究開発機構宇宙科学研究本部"},{"subitem_text_value":"宇宙航空研究開発機構宇宙科学研究本部"}]},"item_3_text_7":{"attribute_name":"著者所属（英）","attribute_value_mlt":[{"subitem_text_language":"en","subitem_text_value":"The University of Tokyo"},{"subitem_text_language":"en","subitem_text_value":"Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (ISAS)(JAXA)"},{"subitem_text_language":"en","subitem_text_value":"Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (ISAS)(JAXA)"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"豊田, 康裕"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"西山, 和孝"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"國中, 均"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Toyoda, Yasuhito","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Nishiyama, Kazutaka","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Kuninaka, Hitoshi","creatorNameLang":"en"}],"nameIdentifiers":[{}]}]},"item_files":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_date","date":[{"dateType":"Available","dateValue":"2020-01-15"}],"displaytype":"detail","filename":"64642007.pdf","filesize":[{"value":"1.6 MB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"64642007.pdf","url":"https://jaxa.repo.nii.ac.jp/record/2088/files/64642007.pdf"},"version_id":"0f066c70-dc23-4f2a-8312-031399ac4973"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"Ion Thruster, mu10, mu20, Aperture Diameter Measurement, Grid Erosion","subitem_subject_language":"en","subitem_subject_scheme":"Other"}]},"item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"jpn"}]},"item_resource_type":{"attribute_name":"資源タイプ","attribute_value_mlt":[{"resourcetype":"technical report","resourceuri":"http://purl.org/coar/resource_type/c_18gh"}]},"item_title":"イメージスキャナを用いた平板Ｃ／Ｃグリッド孔径の統計的分析","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"イメージスキャナを用いた平板Ｃ／Ｃグリッド孔径の統計的分析"}]},"item_type_id":"3","owner":"1","path":["127","1893"],"pubdate":{"attribute_name":"公開日","attribute_value":"2015-03-26"},"publish_date":"2015-03-26","publish_status":"0","recid":"2088","relation_version_is_last":true,"title":["イメージスキャナを用いた平板Ｃ／Ｃグリッド孔径の統計的分析"],"weko_creator_id":"1","weko_shared_id":-1},"updated":"2023-06-21T09:28:50.142781+00:00"}