{"_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": ["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": 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