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Firstly, oxygen was directly injected into a high temperature cathode-jet region through a thoriated-tungsten hollow cathode. Although number density of atomic oxygen was increased, erosion of the cathode was too severe to maintain stable discharge. Then, zirconium was used as a cathode material to reduce cathode erosion by oxidation. As a result, stable discharge was maintained for three hours with pre-mixed argon-oxygen injection and number density of atomic oxygen was successfully increased.", "subitem_description_type": "Abstract"}]}, "item_2_publisher_20": {"attribute_name": "\u51fa\u7248\u8005", "attribute_value_mlt": [{"subitem_publisher": "Pergamon Press"}, {"subitem_publisher": "Elsevier"}]}, "item_2_relation_11": {"attribute_name": "DOI", "attribute_value_mlt": [{"subitem_relation_type_id": {"subitem_relation_type_id_text": "info:doi/10.1016/j.vacuum.2006.01.051", "subitem_relation_type_select": "DOI"}}]}, "item_2_select_14": {"attribute_name": "\u8457\u8005\u7248\u30d5\u30e9\u30b0", "attribute_value_mlt": [{"subitem_select_item": "author"}]}, "item_2_source_id_10": {"attribute_name": "\u66f8\u8a8c\u30ec\u30b3\u30fc\u30c9ID", "attribute_value_mlt": [{"subitem_source_identifier": "AA00879589", "subitem_source_identifier_type": "NCID"}]}, "item_2_source_id_8": {"attribute_name": "ISSN", "attribute_value_mlt": [{"subitem_source_identifier": "0042207X", "subitem_source_identifier_type": "ISSN"}]}, "item_2_subject_15": {"attribute_name": "\u65e5\u672c\u5341\u9032\u5206\u985e\u6cd5", "attribute_value_mlt": [{"subitem_subject": "420", "subitem_subject_scheme": "NDC"}]}, "item_2_text_34": {"attribute_name": "\u8cc7\u6e90\u30bf\u30a4\u30d7", "attribute_value_mlt": [{"subitem_text_value": "Journal Article"}]}, "item_2_text_4": {"attribute_name": "\u8457\u8005\u6240\u5c5e", "attribute_value_mlt": [{"subitem_text_value": "Department of Advanced Energy, The University of Tokyo"}, {"subitem_text_value": "Department of Aeronautics and Astronautics, The University of Tokyo"}]}, "item_creator": {"attribute_name": "\u8457\u8005", "attribute_type": "creator", "attribute_value_mlt": [{"creatorNames": [{"creatorName": "Matsui, Makoto"}], "nameIdentifiers": [{"nameIdentifier": "3748", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "Takayanagi, Hiroki"}], "nameIdentifiers": [{"nameIdentifier": "3749", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "Oda, Yasuhisa"}], "nameIdentifiers": [{"nameIdentifier": "3750", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "Komurasaki, Kimiya"}], "nameIdentifiers": [{"nameIdentifier": "3751", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "Arakawa, Yoshihiro"}], "nameIdentifiers": [{"nameIdentifier": "3752", "nameIdentifierScheme": "WEKO"}]}]}, "item_files": {"attribute_name": "\u30d5\u30a1\u30a4\u30eb\u60c5\u5831", "attribute_type": "file", "attribute_value_mlt": [{"accessrole": "open_date", "date": [{"dateType": "Available", "dateValue": "2017-05-30"}], "displaytype": "detail", "download_preview_message": "", "file_order": 0, "filename": "7_Org_Vacuum_80_1161.pdf", "filesize": [{"value": "370.5 kB"}], "format": "application/pdf", "future_date_message": "", "is_thumbnail": false, "licensetype": "license_free", "mimetype": "application/pdf", "size": 370500.0, "url": {"label": "7_Org_Vacuum_80_1161.pdf", "url": "https://repository.dl.itc.u-tokyo.ac.jp/record/926/files/7_Org_Vacuum_80_1161.pdf"}, "version_id": "7a010850-2591-41aa-9678-8c0ac04d357c"}]}, "item_keyword": {"attribute_name": "\u30ad\u30fc\u30ef\u30fc\u30c9", "attribute_value_mlt": [{"subitem_subject": "Arc-heater", "subitem_subject_scheme": "Other"}, {"subitem_subject": "Atomic Oxygen", "subitem_subject_scheme": "Other"}, {"subitem_subject": "Zirconium Cathode", "subitem_subject_scheme": "Other"}, {"subitem_subject": "Laser Absorption Spectroscopy", "subitem_subject_scheme": "Other"}]}, "item_language": {"attribute_name": "\u8a00\u8a9e", "attribute_value_mlt": [{"subitem_language": "eng"}]}, "item_resource_type": {"attribute_name": "\u8cc7\u6e90\u30bf\u30a4\u30d7", "attribute_value_mlt": [{"resourcetype": "journal article", "resourceuri": "http://purl.org/coar/resource_type/c_6501"}]}, "item_title": "Evaluation of plume characteristics of arc-heaters with various oxygen injection systems", "item_titles": {"attribute_name": "\u30bf\u30a4\u30c8\u30eb", "attribute_value_mlt": [{"subitem_title": "Evaluation of plume characteristics of arc-heaters with various oxygen injection systems"}]}, "item_type_id": "2", "owner": "1", "path": ["9/10/11", "110/113/114"], "permalink_uri": "http://hdl.handle.net/2261/32481", "pubdate": {"attribute_name": "\u516c\u958b\u65e5", "attribute_value": "2017-01-16"}, "publish_date": "2017-01-16", "publish_status": "0", "recid": "926", "relation": {}, "relation_version_is_last": true, "title": ["Evaluation of plume characteristics of arc-heaters with various oxygen injection systems"], "weko_shared_id": null}