{"created":"2023-05-15T14:48:15.710942+00:00","id":66134,"links":{},"metadata":{"_buckets":{"deposit":"a65c9355-4ca5-49bb-ba21-b86c8651f186"},"_deposit":{"created_by":1,"id":"66134","owners":[1],"pid":{"revision_id":0,"type":"depid","value":"66134"},"status":"published"},"_oai":{"id":"oai:repo.qst.go.jp:00066134","sets":["10:29"]},"author_link":["651034","651035"],"item_10005_date_7":{"attribute_name":"発表年月日","attribute_value_mlt":[{"subitem_date_issued_datetime":"2016-11-02","subitem_date_issued_type":"Issued"}]},"item_10005_description_5":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"Recurring bursts of chirping Alfven modes as well as so-called Abrupt Large Events (ALE) that were observed in JT-60U tokamak plasmas driven by negative-ion-based neutral beams (N-NB) are reproduced in first-principle simulations performed with an extended version of the hybrid code MEGA. This code simulates the interactions between gyrokinetic fast ions and magnetohydrodynamic (MHD) modes in the presence of a realistic fast ion source and collisions, so that it self-consistently captures dynamics across a wide range of time scales (0.01--100 ms). Detailed comparisons with experimental measurements are performed. On the long time scale (10--100 ms) the simulation reproduces ALEs with the associated avalanche-like transport of fast ions. ALEs are shown to occur when multiple modes with toroidal mode numbers n = 1, 2, 3 are excited to large amplitudes. On the meso time scale (1--10 ms), bursts of chirping modes are reproduced, which are shown to be n = 1 energetic particle modes (EPM). On the short time scale (0.01--0.1 ms), pulsations and phase jumps are reproduced, which we interpret as the result of beating between multiple resonant wave packets.","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":"58th Annual Meeting of the American Physical Society Division of Plasma Physics","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":"ビアワーゲ, アンドレアス"}],"nameIdentifiers":[{"nameIdentifier":"651034","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"ビアワーゲ アンドレアス","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"651035","nameIdentifierScheme":"WEKO"}]}]},"item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"jpn"}]},"item_resource_type":{"attribute_name":"資源タイプ","attribute_value_mlt":[{"resourcetype":"conference object","resourceuri":"http://purl.org/coar/resource_type/c_c94f"}]},"item_title":"Self-consistent long-time simulation of chirping energetic particle modes and abrupt large events in beam-driven JT-60U tokamak plasmas","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Self-consistent long-time simulation of chirping energetic particle modes and abrupt large events in beam-driven JT-60U tokamak plasmas"}]},"item_type_id":"10005","owner":"1","path":["29"],"pubdate":{"attribute_name":"公開日","attribute_value":"2017-03-01"},"publish_date":"2017-03-01","publish_status":"0","recid":"66134","relation_version_is_last":true,"title":["Self-consistent long-time simulation of chirping energetic particle modes and abrupt large events in beam-driven JT-60U tokamak plasmas"],"weko_creator_id":"1","weko_shared_id":-1},"updated":"2023-05-15T20:52:22.208149+00:00"}