{"created":"2023-05-15T14:58:13.396009+00:00","id":78979,"links":{},"metadata":{"_buckets":{"deposit":"2bbfff63-edc2-4f37-8bd5-9dd6da8ddde0"},"_deposit":{"created_by":1,"id":"78979","owners":[1],"pid":{"revision_id":0,"type":"depid","value":"78979"},"status":"published"},"_oai":{"id":"oai:repo.qst.go.jp:00078979","sets":["1"]},"author_link":["996090","996094","996106","996092","996096","996101","996100","996097","996093","996102","996103","996091","996099","996098","996104","996105","996095"],"item_8_biblio_info_7":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2020-02","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"023506","bibliographicPageEnd":"6","bibliographicPageStart":"1","bibliographicVolumeNumber":"91","bibliographic_titles":[{"bibliographic_title":"Review of Scientific Instruments"}]}]},"item_8_description_5":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"Long pulse acceleration of hydrogen negative ion beams with the power density over 70 MW/m2 and the pulse length over 100 s has been demonstrated for the first time by using a multi-aperture 3-stage accelerator. Such long pulse acceleration was achieved by integrating the design of beam optics and voltage holding capability to meet the requirements of JT-60SA. By using the newly designed accelerator for JT60SA, voltage holding at 500 kV with beam acceleration was stably sustained even after 5 g of cesium was seeded, and heat load on each acceleration grid was reduced below the allowable level for long pulse, less than 5% of total acceleration power. As a result, 500 keV, 154 A/m2 for 118 s beam acceleration was achieved, which satisfies the requirement of the negative ion source for JT-60SA. This pulse length of such high-power density beams is longest in the world. In addition, the result contributes to the long pulse acceleration of multi-stage electrostatic accelerators, such as 1 MeV negative ion accelerator for ITER.","subitem_description_type":"Abstract"}]},"item_8_publisher_8":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"AIP Publishing"}]},"item_8_relation_14":{"attribute_name":"DOI","attribute_value_mlt":[{"subitem_relation_type_id":{"subitem_relation_type_id_text":"10.1063/1.5131302","subitem_relation_type_select":"DOI"}}]},"item_8_relation_17":{"attribute_name":"関連サイト","attribute_value_mlt":[{"subitem_relation_type_id":{"subitem_relation_type_id_text":"https://doi.org/10.1063/1.5131302","subitem_relation_type_select":"DOI"}}]},"item_8_source_id_9":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"0034-6748","subitem_source_identifier_type":"ISSN"}]},"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":"Hiratsuka, Junichi"}],"nameIdentifiers":[{"nameIdentifier":"996090","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Kashiwagi, Mieko"}],"nameIdentifiers":[{"nameIdentifier":"996091","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Ichikawa, Masahiro"}],"nameIdentifiers":[{"nameIdentifier":"996092","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Umeda, Naotaka"}],"nameIdentifiers":[{"nameIdentifier":"996093","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"mae quinones Saquilayan, Glynnis"}],"nameIdentifiers":[{"nameIdentifier":"996094","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Tobari, Hiroyuki"}],"nameIdentifiers":[{"nameIdentifier":"996095","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Watanabe, Kazuhiro"}],"nameIdentifiers":[{"nameIdentifier":"996096","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Kojima, Atsushi"}],"nameIdentifiers":[{"nameIdentifier":"996097","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Yoshida, Masafumi"}],"nameIdentifiers":[{"nameIdentifier":"996098","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Junichi, Hiratsuka","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"996099","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Mieko, Kashiwagi","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"996100","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Masahiro, Ichikawa","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"996101","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Naotaka, Umeda","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"996102","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"mae quinones Saquilayan, Glynnis","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"996103","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Hiroyuki, Tobari","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"996104","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Kazuhiro, Watanabe","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"996105","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Atsushi, Kojima","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"996106","nameIdentifierScheme":"WEKO"}]}]},"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":"Achievement of high power and long pulse negative ion beam acceleration for JT-60SA NBI","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Achievement of high power and long pulse negative ion beam acceleration for JT-60SA NBI"}]},"item_type_id":"8","owner":"1","path":["1"],"pubdate":{"attribute_name":"公開日","attribute_value":"2020-02-14"},"publish_date":"2020-02-14","publish_status":"0","recid":"78979","relation_version_is_last":true,"title":["Achievement of high power and long pulse negative ion beam acceleration for JT-60SA NBI"],"weko_creator_id":"1","weko_shared_id":-1},"updated":"2023-05-15T19:58:20.810812+00:00"}