{"created":"2023-06-20T15:08:20.855852+00:00","id":663,"links":{},"metadata":{"_buckets":{"deposit":"03d9d490-2e41-496d-bfaf-3144347926bb"},"_deposit":{"created_by":3,"id":"663","owners":[3],"pid":{"revision_id":0,"type":"depid","value":"663"},"status":"published"},"_oai":{"id":"oai:nifs-repository.repo.nii.ac.jp:00000663","sets":["6:7"]},"author_link":["126103","126102","126101","126106","126104","126105","126108","126107"],"item_2_biblio_info_7":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2013-04-01","bibliographicIssueDateType":"Issued"},"bibliographicPageStart":"1301036-1 - 1301036-4","bibliographicVolumeNumber":"Vol.8","bibliographic_titles":[{},{"bibliographic_title":"Plasma and Fusion Research","bibliographic_titleLang":"en"}]}]},"item_2_description_5":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"We developed a new imaging spectroscopy diagnostic tool for Hα  emission and installed it on a negative hydrogen ion (H?) source to investigate the H? dynamics in the extraction region. During beam extraction, the Hα emission dropped; the same drop also appeared in the H? density (as measured by cavity ring-down spectroscopy). The reduction in the Hα emission results from the reduction in the excited hydrogen population caused by mutual neutralization processes between H+ and H? ions, which in turn are due to a decrease in the H? density. We find a reduction structure in Hα that is observed inside the plasma farther than 20 mm from the plasma grid (PG) surface. The result indicates that H? ions produced at the PG surface accumulate in the extraction region, so we conclude that they flow toward the PG apertures.","subitem_description_type":"Abstract"}]},"item_2_publisher_8":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"プラズマ・核融合学会誌"}]},"item_2_relation_14":{"attribute_name":"DOI","attribute_value_mlt":[{"subitem_relation_type_id":{"subitem_relation_type_id_text":"10.1585/pfr.8.1301036","subitem_relation_type_select":"DOI"}}]},"item_2_rights_15":{"attribute_name":"権利","attribute_value_mlt":[{"subitem_rights":"? 2013 The Japan Society of Plasma Science and Nuclear Fusion Research"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"IKEDA,  Katsunori","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"NAKANO,  Haruhisa","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"TSUMORI,  Katsuyoshi","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"KISAKI,  Masashi","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"NAGAOKA,  Kenichi","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"OSAKABE,  Masaki","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"TAKEIRI,  Yasuhiko","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"KANEKO,  Osamu","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":"2016-03-23"}],"displaytype":"detail","filename":"pfr2013_08-1301036.pdf","filesize":[{"value":"1.1 MB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"pfr2013_08-1301036.pdf","url":"https://nifs-repository.repo.nii.ac.jp/record/663/files/pfr2013_08-1301036.pdf"},"version_id":"593fc5e3-cff3-43ed-b7d7-e97ba37c48c4"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"negative ion source","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"H?","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"Hα","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"mutual neutralization","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"imaging spectroscopy","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":"Visualization of H? Dynamics in Extraction Region of Negative-Ion Source by Hα Imaging Spectroscopy","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Visualization of H? Dynamics in Extraction Region of Negative-Ion Source by Hα Imaging Spectroscopy","subitem_title_language":"en"}]},"item_type_id":"2","owner":"3","path":["7"],"pubdate":{"attribute_name":"公開日","attribute_value":"2013-08-05"},"publish_date":"2013-08-05","publish_status":"0","recid":"663","relation_version_is_last":true,"title":["Visualization of H? Dynamics in Extraction Region of Negative-Ion Source by Hα Imaging Spectroscopy"],"weko_creator_id":"3","weko_shared_id":-1},"updated":"2023-06-20T16:39:49.536495+00:00"}