{"created":"2023-05-15T14:37:52.682517+00:00","id":48876,"links":{},"metadata":{"_buckets":{"deposit":"0f507bb1-c1a3-49fa-be54-1e9173623e00"},"_deposit":{"created_by":1,"id":"48876","owners":[1],"pid":{"revision_id":0,"type":"depid","value":"48876"},"status":"published"},"_oai":{"id":"oai:repo.qst.go.jp:00048876","sets":["1"]},"author_link":["492394","492395","492392","492393"],"item_8_biblio_info_7":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2018-05","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"12","bibliographicPageEnd":"126003-7","bibliographicPageStart":"126003-1","bibliographicVolumeNumber":"57","bibliographic_titles":[{"bibliographic_title":"Nuclear Fusion"}]}]},"item_8_description_5":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"Non-uniformity effects of the edge radial electric field, Er, on the edge transport barriers (ETBs) formation have been identified with high-spatiotemporal resolution spectroscopic measurement. We found the decisive importance of Er-curvature (i.e. 2nd derivative of Er) on the ETBs formation at which the normalized ion temperature gradient, L_(T_i)^(-1)≡-(∇T_i)⁄T_i , has a local peak value in the pedestal region. On the other hand, the role of the Er-shear (i.e. 1st derivative of Er) was newly understood as for the expansion of pedestal width, compensating an unfavorable effect of the Er-curvature having its sign dependence on the transport reduction/enhancement, being expected by a theoretical model as L_(T_i)^(-1)∝(〖E_r^' E_r^'-E〗_r E_r^\" )^0.5. A significant reduction of the inferred ion thermal transport coefficient in the pedestal region, χ_(i,ped.), due to the non-uniformity effects of Er was also confirmed quantitatively in the H-mode plasma at the initial ELM-free phase. When the inhomogeneity of radial electric field became strong enough, the inferred χ_(i,ped.) value was close to its neoclassical one at the later ELM-free H-phase until 1st type-I ELM onset. Even though, we observed the further reduction of electron density fluctuations (in the range up to 300 kHz) and D_α signals in association with the increment of electric field inhomogeneity. These suggest that the electron turbulent transport is suppressed further.","subitem_description_type":"Abstract"}]},"item_8_relation_14":{"attribute_name":"DOI","attribute_value_mlt":[{"subitem_relation_type_id":{"subitem_relation_type_id_text":"10.1088/1741-4326/aa7f3b","subitem_relation_type_select":"DOI"}}]},"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":"神谷, 健作"}],"nameIdentifiers":[{"nameIdentifier":"492392","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"伊藤, 公孝"}],"nameIdentifiers":[{"nameIdentifier":"492393","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"伊藤, 早苗"}],"nameIdentifiers":[{"nameIdentifier":"492394","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"神谷 健作","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"492395","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":"Reduction of ion thermal transport due to non-uniformity effects of the radial electric field at the edge of the JT-60U tokamak","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Reduction of ion thermal transport due to non-uniformity effects of the radial electric field at the edge of the JT-60U tokamak"}]},"item_type_id":"8","owner":"1","path":["1"],"pubdate":{"attribute_name":"公開日","attribute_value":"2018-05-08"},"publish_date":"2018-05-08","publish_status":"0","recid":"48876","relation_version_is_last":true,"title":["Reduction of ion thermal transport due to non-uniformity effects of the radial electric field at the edge of the JT-60U tokamak"],"weko_creator_id":"1","weko_shared_id":-1},"updated":"2023-05-15T23:23:21.406723+00:00"}