{"created":"2023-06-20T15:16:24.521262+00:00","id":10109,"links":{},"metadata":{"_buckets":{"deposit":"5d38f4e5-4528-4c8e-996b-5561333fac85"},"_deposit":{"created_by":3,"id":"10109","owners":[3],"pid":{"revision_id":0,"type":"depid","value":"10109"},"status":"published"},"_oai":{"id":"oai:nifs-repository.repo.nii.ac.jp:00010109","sets":["8:32"]},"author_link":["63075","63076","63074","63077","63081","63078","63080","63079"],"item_5_biblio_info_7":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"1999-12-01","bibliographicIssueDateType":"Issued"},"bibliographic_titles":[{},{"bibliographic_title":"Research Report NIFS-Series","bibliographic_titleLang":"en"}]}]},"item_5_description_5":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"\"A new multicusp H^- ion source using a Localized Virtual magnetic filter of type I [Ref.6] in the plasma electrode is investigated.  A multipole (MP) arrangement with a spacing of 10 mm of the magnet bars holds an extraction hole, optimizing the efficient production of high H^- current, and at the same time only a small electron component was co-extracted with the H^- ions.  The local filter arrangement separates the beam electrons at a low energy.  It is shown that the co-extracted total electron current is determined principally by the integrated magnetic field flux (Gcm) of the local filter with an extraction system at a constant extraction voltage.  When the value of the Gcm is increased, the total electron component is reduced, while the H^- electrical efficiency had a braod maximum around the optimized value of the Gcm. A thicker plasma electrode should be necessary for sufficient reduction of electron current.  In pure hydrogen operation, the achieved current density of H^- is 10 mA/cm^2.  when Cs was seeded in a filter optimized for pure volume mode H^- production, the maximum H^-  current density obtained is 51 mA/cm^2 and the ratio I_ele/H^- is ~ 0.4 without applying a bias potential.\"","subitem_description_type":"Abstract"}]},"item_5_source_id_10":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"0915-633X","subitem_source_identifier_type":"ISSN"}]},"item_5_text_8":{"attribute_name":"報告書番号","attribute_value_mlt":[{"subitem_text_value":"NIFS-622"}]},"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":"\"Oka,  Y.","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Kaneko,  O.","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Tsumori,  K.","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Takeiri,  Y.","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Osakabe,  M.","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Kawamoto,  T.","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Asano,  E.","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Akiyama,  R.\"","creatorNameLang":"en"}],"nameIdentifiers":[{}]}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"hydrogen negative ion","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"ion source","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"magnetic filter","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"cesium deposition","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"NBI","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":"research report","resourceuri":"http://purl.org/coar/resource_type/c_18ws"}]},"item_title":"H-  Ion Source Using a Localized Virtual Magnetic Filter in the Plasma Electrode: Type I LV Magnetic Filter","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"H-  Ion Source Using a Localized Virtual Magnetic Filter in the Plasma Electrode: Type I LV Magnetic Filter","subitem_title_language":"en"}]},"item_type_id":"5","owner":"3","path":["32"],"pubdate":{"attribute_name":"公開日","attribute_value":"2010-02-05"},"publish_date":"2010-02-05","publish_status":"0","recid":"10109","relation_version_is_last":true,"title":["H-  Ion Source Using a Localized Virtual Magnetic Filter in the Plasma Electrode: Type I LV Magnetic Filter"],"weko_creator_id":"3","weko_shared_id":-1},"updated":"2023-06-20T20:53:31.748911+00:00"}