{"created":"2023-06-20T15:16:56.419412+00:00","id":10703,"links":{},"metadata":{"_buckets":{"deposit":"7c2582ff-7ed5-4fd0-ab12-6fab8cbc62f8"},"_deposit":{"created_by":19,"id":"10703","owners":[19],"pid":{"revision_id":0,"type":"depid","value":"10703"},"status":"published"},"_oai":{"id":"oai:nifs-repository.repo.nii.ac.jp:00010703","sets":["6:7"]},"author_link":["66540","66726","66594","66600","126552","66308","66602","66755","66557","126266","66752","66803","124354","66754","126267","66603","66598","66556","66611","66524"],"item_10001_alternative_title_1":{"attribute_name":"その他（別言語等）のタイトル","attribute_value_mlt":[{"subitem_alternative_title":"増強されたECHアンテナシステムを用いたLHDにおけるECCD適用性の向上"}]},"item_10001_biblio_info_7":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2016-04-15","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"Special Issue1-ITC25","bibliographicPageStart":"2402036","bibliographicVolumeNumber":"11","bibliographic_titles":[{"bibliographic_title":"Plasma and Fusion Research"}]}]},"item_10001_description_4":{"attribute_name":"著者ID","attribute_value_mlt":[{"subitem_description":"0000-0001-6744-1829","subitem_description_type":"Other"}]},"item_10001_description_5":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"The power injection system for electron cyclotron heating (ECH) and electron cyclotron current drive (ECCD) was modified and upgraded. An outside horizontal port 2-O on the Large Helical Device (LHD) was furnished with two antenna systems for the EC-waves of the frequencies of 77 and 154 GHz, respectively. In addition to them, two new antenna systems for 77 and 154 GHz waves were installed in the 2-O port. Each antenna in the 2-O port has wide range of EC-wave beam direction control so that these are suitable for ECCD which requires toroidally oblique EC-wave beam injection. In the LHD 18th experimental campaign in 2014-2015, an ECCD experiment with second harmonic resonance condition, on-axis magnetic field of 1.375 T for 77 GHz waves, was performed in which some combination patterns of two 77 GHz ECCDs were applied. The discharges of dual co- and dual counter-ECCDs showed remarkable plasma currents of ∼±26 kA in both of the co- and counter-directions, by 6 s pulse duration and injection powers of 366 and 365 kW. The new antenna has nearly the same capability for ECCD with that of the existing antenna. The improvement in the flexibility of the ways of applying plural ECCDs will offer a highly useful tool for investigations on the phenomena concerning with the plasma current such as magnetohydro-dynamics.","subitem_description_type":"Abstract"}]},"item_10001_publisher_8":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"Publisher\tThe Japan Society of Plasma Science and Nuclear Fusion Research"}]},"item_10001_relation_14":{"attribute_name":"DOI","attribute_value_mlt":[{"subitem_relation_type":"isIdenticalTo","subitem_relation_type_id":{"subitem_relation_type_id_text":"10.1585/pfr.11.2402036","subitem_relation_type_select":"DOI"}}]},"item_10001_relation_17":{"attribute_name":"関連サイト","attribute_value_mlt":[{"subitem_relation_name":[{"subitem_relation_name_text":"Published 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