{"created":"2023-05-15T14:48:20.372713+00:00","id":66238,"links":{},"metadata":{"_buckets":{"deposit":"d5311ccf-be5b-4518-951f-06970b8a3f32"},"_deposit":{"created_by":1,"id":"66238","owners":[1],"pid":{"revision_id":0,"type":"depid","value":"66238"},"status":"published"},"_oai":{"id":"oai:repo.qst.go.jp:00066238","sets":["10:29"]},"author_link":["651809","651818","651806","651808","651814","651821","651812","651813","651817","651810","651816","651824","651825","651820","651823","651811","651807","651819","651815","651822"],"item_10005_date_7":{"attribute_name":"発表年月日","attribute_value_mlt":[{"subitem_date_issued_datetime":"2016-09-06","subitem_date_issued_type":"Issued"}]},"item_10005_description_5":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"JT-60SAの加熱・電流駆動を担う中性粒子入射装置では、500 keV, 22Aの負イオンビームを、100秒間連続で加速する負イオン源・加速器の開発が最重要課題である。量研機構では、多孔多段の負イオン加速器を開発し、負イオンビームの高エネルギー化、長パルス化の技術開発を進めている。今回、加速中の負イオンビームの直接衝突を減らすと共に、衝突により発生する二次電子の量を抑制することを目的として、加速電極の孔径や厚みを最適化した加速電極を開発し、5段静電加速器に適用した。その結果、1MeVの負イオンビームのパルス幅を従来の0.4秒から60秒間に伸長することに成功し、JT-60SA用長パルス加速電極の原理実証に成功した。これらの開発研究の状況について報告する。","subitem_description_type":"Abstract"}]},"item_10005_description_6":{"attribute_name":"会議概要（会議名, 開催地, 会期, 主催者等）","attribute_value_mlt":[{"subitem_description":"29th edition of the Symposium on Fusion Technology","subitem_description_type":"Other"}]},"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":"小島, 有志"}],"nameIdentifiers":[{"nameIdentifier":"651806","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"平塚, 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