{"created":"2023-06-20T15:12:49.109475+00:00","id":9690,"links":{},"metadata":{"_buckets":{"deposit":"55dfe96e-d908-4b2d-be7e-679eebcac5f0"},"_deposit":{"created_by":3,"id":"9690","owners":[3],"pid":{"revision_id":0,"type":"depid","value":"9690"},"status":"published"},"_oai":{"id":"oai:ynu.repo.nii.ac.jp:00009690","sets":["495:496"]},"author_link":["35234","714","35233","35235"],"item_2_biblio_info_8":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2019-04-12","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"4","bibliographicPageStart":"043508","bibliographicVolumeNumber":"26","bibliographic_titles":[{"bibliographic_title":"Physics of plasmas"}]}]},"item_2_description_5":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"This work analyzes the discharge characteristics of water plasma for a miniature microwave discharge ion thruster via three-dimensional particle-in-cell simulations with Monte Carlo collisions. It incorporates the negative ions (H−, O−, and OH−) into the simulation code, aside from the three major positive ion species (H2O+, OH+, and H+), and investigates their effects on the discharge characteristics. On the one hand, the simulation results indicate that H2O+ is the dominant species and the negative ions have little effect on the positive ion density and transport. On the other hand, this study confirms the axial oscillation of the OH− negative ion density, in addition to azimuthal rotation, causing plasma instability with a periodic low-frequency anomalous diffusion. The azimuthal rotation is similar to the phenomena observed in other E × B devices, where the difference in spatial distributions of magnetized electrons and unmagnetized ions causes the local potential hump and the resultant instability. Moreover, the axial oscillation, not observed in the previous study considering only positive ions, is due to the generation of OH− by the charge transfer collision reaction between H2O and H−, and this oscillation frequency is double that of the azimuthal rotation. Both the azimuthal rotation and the axial oscillation result in the periodic double peaks of the potential time evolution. These fluctuations have an influence on electron transport across the magnetic field.","subitem_description_type":"Abstract"}]},"item_2_publisher_35":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"American Institute of Physics "}]},"item_2_relation_13":{"attribute_name":"DOI","attribute_value_mlt":[{"subitem_relation_type":"isVersionOf","subitem_relation_type_id":{"subitem_relation_type_id_text":"info:doi/10.1063/1.5092754","subitem_relation_type_select":"DOI"}}]},"item_2_rights_14":{"attribute_name":"権利","attribute_value_mlt":[{"subitem_rights":"©2019 AIP Publishing."}]},"item_2_source_id_11":{"attribute_name":"書誌レコードID","attribute_value_mlt":[{"subitem_source_identifier":"AA10987555","subitem_source_identifier_type":"NCID"}]},"item_2_source_id_9":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"1070664X","subitem_source_identifier_type":"ISSN"}]},"item_2_text_4":{"attribute_name":"著者所属","attribute_value_mlt":[{"subitem_text_value":"Department of Systems Integration, Yokohama National University, Yokohama 240-8501,Japan"},{"subitem_text_value":"Department of Advanced Energy, the University of Tokyo, Kashiwa, Chiba 277-8561, Japan"},{"subitem_text_value":"Department of Engineering, Tokyo Metropolitan College of Industrial Technology, 8-17-1,Minami-senjyu, Arakawa-ku, Tokyo 113-0852, Japan"},{"subitem_text_value":"Division of Systems Research, Yokohama National University, Yokohama 240-8501, Japan"}]},"item_2_version_type_18":{"attribute_name":"著者版フラグ","attribute_value_mlt":[{"subitem_version_resource":"http://purl.org/coar/version/c_ab4af688f83e57aa","subitem_version_type":"AM"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"Nakamura, Kengo"}],"nameIdentifiers":[{"nameIdentifier":"35233","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Koizumi, Hiroyuki"}],"nameIdentifiers":[{"nameIdentifier":"35234","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Nakano, Masakatsu"}],"nameIdentifiers":[{"nameIdentifier":"35235","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Takao, Yoshinori"}],"nameIdentifiers":[{"nameIdentifier":"714","nameIdentifierScheme":"WEKO"},{"nameIdentifier":"80552661","nameIdentifierScheme":"e-Rad","nameIdentifierURI":"https://kaken.nii.ac.jp/ja/search/?qm=80552661"}]}]},"item_files":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_date","date":[{"dateType":"Available","dateValue":"2019-04-15"}],"displaytype":"detail","filename":"2019.Nakamura,K.POP.26.043508.pdf","filesize":[{"value":"9.7 MB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"2019.Nakamura,K.POP.26.043508.pdf","url":"https://ynu.repo.nii.ac.jp/record/9690/files/2019.Nakamura,K.POP.26.043508.pdf"},"version_id":"0b128fd7-ed76-4fd0-957a-b72ccf81bf67"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"Ion Thrusters","subitem_subject_scheme":"Other"},{"subitem_subject":"ECR.Plasma","subitem_subject_scheme":"Other"},{"subitem_subject":"Water","subitem_subject_scheme":"Other"},{"subitem_subject":"PIC–MCC","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":"Effects of negative ions on discharge characteristics of water plasma source for a miniature microwave discharge ion thruster","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Effects of negative ions on discharge characteristics of water plasma source for a miniature microwave discharge ion thruster"}]},"item_type_id":"2","owner":"3","path":["496"],"pubdate":{"attribute_name":"公開日","attribute_value":"2019-04-15"},"publish_date":"2019-04-15","publish_status":"0","recid":"9690","relation_version_is_last":true,"title":["Effects of negative ions on discharge characteristics of water plasma source for a miniature microwave discharge ion thruster"],"weko_creator_id":"3","weko_shared_id":3},"updated":"2023-06-20T18:24:41.827575+00:00"}