{"created":"2023-06-20T15:17:20.858298+00:00","id":11202,"links":{},"metadata":{"_buckets":{"deposit":"5eadf213-1771-4f3a-a603-d43d03a6fb2b"},"_deposit":{"created_by":20,"id":"11202","owners":[20],"pid":{"revision_id":0,"type":"depid","value":"11202"},"status":"published"},"_oai":{"id":"oai:nifs-repository.repo.nii.ac.jp:00011202","sets":["6:7"]},"author_link":["67436","126505","66754","127435","66524","126503","127205","123964","66536","66533","127313","127323","66893","67492"],"item_10001_biblio_info_7":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2022-05-13","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"Special Issue 1","bibliographicPageStart":"2402039","bibliographicVolumeNumber":"17","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 capability of plasma current control by the second harmonic electron cyclotron current drive in the quasiaxisymmetric stellarator CFQS is investigated. We used the ray-tracing code TRAVIS to evaluate the electron cyclotron (EC) wave power deposition and driven current. In the standard magnetic field configuration of CFQS, the poloidal distribution of the magnetic field is nearly axisymmetric, i.e., equivalent at all toroidal positions as tokamaks. In the calculation, a flat electron density profile at the core region with ne0 = 1 × 1019 m−3 and a center-peaked electron temperature profile with Te0 = 3.5 keV are assumed. The EC wave beam direction is scanned mainly in the toroidal direction, aiming at the plasma axis. The vertical injection angle of the beam and magnetic field strength are varied and optimized to keep on-axis power deposition to maximize driven current at each toroidal direction of the EC wave beam. According to the calculation, the maximum driven current at optimum beam direction, with an expected maximum EC wave power of 400 kW, is approximately 80 kA. Meanwhile, approximately 26 kA of bootstrap current in CFQS with the volume-averaged β value of 1.2% is estimated using the BOOTSJ code. Hence, sufficient on-axis EC-driven current can be expected for compensation of the possible bootstrap current, although the current profiles are different. Moreover, a driven current of over 30 kA can be expected even in extreme cases where the magnetic field on-axis has ripples by modified modular coil currents by 20%. The possibility of compensation of bootstrap current in total amount and current profile is also discussed.","subitem_description_type":"Abstract"}]},"item_10001_publisher_8":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"The 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.17.2402039 ","subitem_relation_type_select":"DOI"}}]},"item_10001_relation_16":{"attribute_name":"情報源","attribute_value_mlt":[{"subitem_relation_name":[{"subitem_relation_name_text":"the 30th International Toki Conference on Plasma and Fusion Research (ITC30)"}]}]},"item_10001_relation_17":{"attribute_name":"関連サイト","attribute_value_mlt":[{"subitem_relation_name":[{"subitem_relation_name_text":"Publisher 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"}]},"item_10001_source_id_11":{"attribute_name":"書誌レコードID","attribute_value_mlt":[{"subitem_source_identifier":"AA12346675","subitem_source_identifier_type":"NCID"}]},"item_10001_source_id_9":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"1880-6821","subitem_source_identifier_type":"ISSN"}]},"item_10001_text_23":{"attribute_name":"NAIS","attribute_value_mlt":[{"subitem_text_value":"13421"}]},"item_10001_version_type_20":{"attribute_name":"著者版フラグ","attribute_value_mlt":[{"subitem_version_resource":"http://purl.org/coar/version/c_970fb48d4fbd8a85","subitem_version_type":"VoR"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorAffiliations":[{"affiliationNameIdentifiers":[{"affiliationNameIdentifier":""}],"affiliationNames":[{"affiliationName":""}]}],"creatorNames":[{"creatorName":"YOSHIMURA,  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kB"}],"format":"application/pdf","licensetype":"license_11","mimetype":"application/pdf","url":{"label":"pfr2022_17-2402039","url":"https://nifs-repository.repo.nii.ac.jp/record/11202/files/pfr2022_17-2402039.pdf"},"version_id":"2537970a-475a-4f26-b401-f6cd3d5a1339"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"electron cyclotron current drive","subitem_subject_scheme":"Other"},{"subitem_subject":"ECCD","subitem_subject_scheme":"Other"},{"subitem_subject":"quasiaxisymmetric stellarator","subitem_subject_scheme":"Other"},{"subitem_subject":"CFQS","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":"Investigation of Capability of Current Control by Electron Cyclotron Waves in the Quasiaxisymmetric Stellarator CFQS","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Investigation of Capability of Current Control by Electron Cyclotron Waves in the Quasiaxisymmetric Stellarator CFQS"}]},"item_type_id":"10001","owner":"20","path":["7"],"pubdate":{"attribute_name":"公開日","attribute_value":"2022-05-16"},"publish_date":"2022-05-16","publish_status":"0","recid":"11202","relation_version_is_last":true,"title":["Investigation of Capability of Current Control by Electron Cyclotron Waves in the Quasiaxisymmetric Stellarator CFQS"],"weko_creator_id":"20","weko_shared_id":-1},"updated":"2024-03-01T01:56:05.301528+00:00"}