{"created":"2023-06-20T15:08:00.282539+00:00","id":241,"links":{},"metadata":{"_buckets":{"deposit":"235f69b4-5b1b-4ceb-8338-c0d7d2e50557"},"_deposit":{"created_by":3,"id":"241","owners":[3],"pid":{"revision_id":0,"type":"depid","value":"241"},"status":"published"},"_oai":{"id":"oai:nifs-repository.repo.nii.ac.jp:00000241","sets":["6:7"]},"author_link":["122039","122040","122045","122050","122052","122053","122055","122056","122042","122046","122047","122051","122043","122049","122054","122044","122048","122041"],"item_2_biblio_info_7":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2012-03-01","bibliographicIssueDateType":"Issued"},"bibliographicPageStart":"2402020-1 - 2402020-4","bibliographicVolumeNumber":"Vol. 7","bibliographic_titles":[{},{"bibliographic_title":"Plasma and Fusion Research","bibliographic_titleLang":"en"}]}]},"item_2_description_5":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"Electron cyclotron current drive (ECCD) is an attractive tool for controlling plasmas. In the large helical device (LHD), ECCD experiments have been performed by using an EC-wave power source, gyrotron, with a frequency of 84 GHz. The maximum driven current was ?9 kA with 100 kW injection power to plasma and 8 s duration of EC-wave pulse. These years, high-power and long-pulse 77 GHz gyrotrons were newly installed. An ECCD experiment with 775 kW injection power was performed. The 77 GHz waves of 8 s pulse duration sustained the plasmas. The EC-wave beam direction was scanned toroidally, keeping the beam direction aiming at the magnetic axis in X-mode polarization. In spite of the change in the EC-wave beam direction, plasma parameters such as the line-average electron density, the central electron temperature and the plasma stored energy were kept nearly the same values for the discharges, ?0.3 × 1019 m?3, ?3 keV and ?30 kJ, except for the plasma current. The plasma current showed a systematic change with the change in the beam direction for ECCD, and at an optimum direction with N//  ? ?0.3, the plasma current reached its maximum, ?40 kA. Also, current drive efficiency normalized with density and power was improved by 50% compared with that at the former 84 GHz ECCD experiment.","subitem_description_type":"Abstract"}]},"item_2_publisher_8":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"プラズマ・核融合学会"}]},"item_2_relation_14":{"attribute_name":"DOI","attribute_value_mlt":[{"subitem_relation_type_id":{"subitem_relation_type_id_text":"10.1585/pfr.7.2402020","subitem_relation_type_select":"DOI"}}]},"item_2_rights_15":{"attribute_name":"権利","attribute_value_mlt":[{"subitem_rights":"? 2012 The Japan Society of Plasma Science and Nuclear Fusion Research"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"Yoshimura,  Yasuo","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Kubo,  Shin","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Shimozuma,  Takashi","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Igami,  Hiroe","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Takahashi,  Hiromi","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"NISHIURA,  Masaki","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"OGASAWARA,  Shinya","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"MAKINO,  Ryohei","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"IDA,  Katsumi","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"YOSHINUMA,  Mikiro","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"SAKAKIBARA,  Satoru","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"TANAKA,  Kenji","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"NARIHARA,  Kazumichi","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"MUTOH,  Takashi","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"YAMADA,  Hiroshi","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"NAGASAKI,  Kazunobu","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"MARUSHCHENKO,  Nikolai B.","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"TURKIN,  Yuri","creatorNameLang":"en"}],"nameIdentifiers":[{}]}]},"item_files":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_date","date":[{"dateType":"Available","dateValue":"2016-03-23"}],"displaytype":"detail","filename":"pfr2012_07-2402020.pdf","filesize":[{"value":"727.7 kB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"pfr2012_07-2402020.pdf","url":"https://nifs-repository.repo.nii.ac.jp/record/241/files/pfr2012_07-2402020.pdf"},"version_id":"2263bd7b-8812-4156-92bf-11a339293312"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"electron cyclotron current drive","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"ECCD","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"plasma current","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"gyrotron","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"LHD","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"TRAVIS","subitem_subject_language":"en","subitem_subject_scheme":"Other"}]},"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":"ECCD Experiment Using an Upgraded ECH System on LHD","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"ECCD Experiment Using an Upgraded ECH System on LHD","subitem_title_language":"en"}]},"item_type_id":"2","owner":"3","path":["7"],"pubdate":{"attribute_name":"公開日","attribute_value":"2012-06-25"},"publish_date":"2012-06-25","publish_status":"0","recid":"241","relation_version_is_last":true,"title":["ECCD Experiment Using an Upgraded ECH System on LHD"],"weko_creator_id":"3","weko_shared_id":-1},"updated":"2023-06-20T16:44:55.021271+00:00"}