{"created":"2023-05-15T14:39:51.930310+00:00","id":54709,"links":{},"metadata":{"_buckets":{"deposit":"97fd2f6a-dcbd-463c-afdb-ba2f98ffeafd"},"_deposit":{"created_by":1,"id":"54709","owners":[1],"pid":{"revision_id":0,"type":"depid","value":"54709"},"status":"published"},"_oai":{"id":"oai:repo.qst.go.jp:00054709","sets":["2"]},"author_link":["559238","559243","559242","559232","559234","559228","559237","559235","559239","559227","559231","559240","559233","559241","559244","559226","559229","559236","559230"],"item_10003_biblio_info_7":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2017-01","bibliographicIssueDateType":"Issued"},"bibliographicPageStart":"EX/8-1","bibliographic_titles":[{"bibliographic_title":"Proceedings of 26th IAEA Fusion Energy Conference"}]}]},"item_10003_description_5":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"Negative magnetic shear has been demonstrated to mitigate the confinement degradation typically observed with increasing the electron to ion temperature ratio (Te/Ti), and the mechanisms are now understood in terms of fluctuation measurements and gyrokinetic (GK) simulations in DIII-D steady-state plasmas. The impact of Te/Ti on plasma transport and confinement is a critical issue for ITER and DEMO, where electron heating by alpha particles will be dominant. In the new experiments in DIII-D negative magnetic shear (NS) discharges, the Ti profile was maintained as Te/Ti increased through electron cyclotron range of frequency (ECRF) heating, while in positive magnetic shear (PS) plasmas, a large reduction in Ti was observed at increased Te/Ti. The different transport behavior has been explained by the turbulence measurements and GK simulations; the increase in Te/Ti had less impact on broadband turbulent fluctuations in the NS plasmas compared with that in the PS plasmas. The difference reflects changes in thermal energy confinement; the ion thermal diffusivity remained constant in the NS plasma but increased in the PS plasma when ECRF was applied. The reduced confinement degradation at high Te/Ti with NS has been commonly observed in DIII-D and JT-60U.","subitem_description_type":"Abstract"}]},"item_10003_publisher_8":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"International Atomic Energy Agency"}]},"item_10003_relation_17":{"attribute_name":"関連サイト","attribute_value_mlt":[{"subitem_relation_name":[{"subitem_relation_name_text":"https://nucleus.iaea.org/sites/fusionportal/Shared%20Documents/FEC%202016/fec2016-preprints/preprint0386.pdf"}],"subitem_relation_type_id":{"subitem_relation_type_id_text":"https://nucleus.iaea.org/sites/fusionportal/Shared%20Documents/FEC%202016/fec2016-preprints/preprint0386.pdf","subitem_relation_type_select":"URI"}}]},"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":"Yoshida, Maiko"}],"nameIdentifiers":[{"nameIdentifier":"559226","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"R., McKee G."}],"nameIdentifiers":[{"nameIdentifier":"559227","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Murakami, M."}],"nameIdentifiers":[{"nameIdentifier":"559228","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"M., Collins C."}],"nameIdentifiers":[{"nameIdentifier":"559229","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"M., Davis E."}],"nameIdentifiers":[{"nameIdentifier":"559230","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"R., Ferron J."}],"nameIdentifiers":[{"nameIdentifier":"559231","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"M., Garofalo A."}],"nameIdentifiers":[{"nameIdentifier":"559232","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"A., Grierson B."}],"nameIdentifiers":[{"nameIdentifier":"559233","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"T., Holcomb C."}],"nameIdentifiers":[{"nameIdentifier":"559234","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Marinoni, A."}],"nameIdentifiers":[{"nameIdentifier":"559235","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Nakata, M."}],"nameIdentifiers":[{"nameIdentifier":"559236","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Ono, M."}],"nameIdentifiers":[{"nameIdentifier":"559237","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"C., Petty C."}],"nameIdentifiers":[{"nameIdentifier":"559238","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"L., Rhodes T."}],"nameIdentifiers":[{"nameIdentifier":"559239","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Schmitz, L."}],"nameIdentifiers":[{"nameIdentifier":"559240","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"M., Solomon W."}],"nameIdentifiers":[{"nameIdentifier":"559241","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Sung, C."}],"nameIdentifiers":[{"nameIdentifier":"559242","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Turco, F."}],"nameIdentifiers":[{"nameIdentifier":"559243","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"吉田 麻衣子","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"559244","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":"conference paper","resourceuri":"http://purl.org/coar/resource_type/c_5794"}]},"item_title":"Magnetic shear effects on plasma transport and turbulence at high electron to ion temperature ratio in DIII-D and JT-60U plasmas","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Magnetic shear effects on plasma transport and turbulence at high electron to ion temperature ratio in DIII-D and JT-60U plasmas"}]},"item_type_id":"10003","owner":"1","path":["2"],"pubdate":{"attribute_name":"公開日","attribute_value":"2017-03-10"},"publish_date":"2017-03-10","publish_status":"0","recid":"54709","relation_version_is_last":true,"title":["Magnetic shear effects on plasma transport and turbulence at high electron to ion temperature ratio in DIII-D and JT-60U plasmas"],"weko_creator_id":"1","weko_shared_id":-1},"updated":"2023-05-15T22:57:41.658889+00:00"}