{"created":"2021-03-01T07:33:06.669562+00:00","id":52530,"links":{},"metadata":{"_buckets":{"deposit":"1700cf29-bb4d-44b7-af9a-9d4da8423474"},"_deposit":{"id":"52530","owners":[],"pid":{"revision_id":0,"type":"depid","value":"52530"},"status":"published"},"_oai":{"id":"oai:tsukuba.repo.nii.ac.jp:00052530","sets":["117:1699","117:178","117:365","117:787","3:62:5598:6187"]},"item_5_biblio_info_6":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2019-03","bibliographicIssueDateType":"Issued"},"bibliographicPageStart":"2405052","bibliographicVolumeNumber":"14","bibliographic_titles":[{"bibliographic_title":"Plasma and Fusion Research"}]}]},"item_5_description_4":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"This study develops a computational code for evaluating the operations of high-power gyrotrons with high-current electron beams. The analytical model describes the electromagnetic fields and electrons by the Maxwell equations and cold-fluid equations, respectively. Specifically, it estimates the output power of the gyrotron with electron-beam fluctuations, which occur under high beam currents. The effects of fluctuations of the intense electron flows in nonuniform magnetic fields are studied in a 1 MW gyrotron for electron cyclotron resonance plasma heating and current drive in large devices, such as the tandem mirror plasma device GAMMA10/PDX and the Large Helical Device (LHD). The rate of fluctuation growth of the electron beam and the output power of the high-power gyrotron with a fluctuated beam are calculated. In gyrotrons with a higher operating frequency (e.g., 154 GHz), significant deterioration of the electron beam and gyrotron operation is expected at beam currents exceeding 120 A.","subitem_description_type":"Abstract"}]},"item_5_publisher_27":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"The Japan Society of Plasma Science and Nuclear Fusion Research"}]},"item_5_relation_11":{"attribute_name":"DOI","attribute_value_mlt":[{"subitem_relation_type_id":{"subitem_relation_type_id_text":"10.1585/pfr.14.2405052","subitem_relation_type_select":"DOI"}}]},"item_5_rights_12":{"attribute_name":"権利","attribute_value_mlt":[{"subitem_rights":"© 2019 The Japan Society of Plasma Science and Nuclear Fusion Research"}]},"item_5_select_15":{"attribute_name":"著者版フラグ","attribute_value_mlt":[{"subitem_select_item":"publisher"}]},"item_5_source_id_7":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"1880-6821","subitem_source_identifier_type":"ISSN"}]},"item_5_source_id_9":{"attribute_name":"書誌レコードID","attribute_value_mlt":[{"subitem_source_identifier":"AA12346675","subitem_source_identifier_type":"NCID"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorMails":[{}],"creatorNames":[{"creatorName":"沼倉, 友晴"},{"creatorName":"ヌマクラ, トモハル","creatorNameLang":"ja-Kana"},{"creatorName":"NUMAKURA, Tomoharu","creatorNameLang":"en"}],"nameIdentifiers":[{},{},{}]},{"creatorMails":[{}],"creatorNames":[{"creatorName":"假家, 強"},{"creatorName":"カリヤ, ツヨシ","creatorNameLang":"ja-Kana"},{"creatorName":"KARIYA, Tsuyoshi","creatorNameLang":"en"}],"nameIdentifiers":[{},{},{}]},{"creatorMails":[{}],"creatorNames":[{"creatorName":"南, 龍太郎"},{"creatorName":"ミナミ, リュウタロウ","creatorNameLang":"ja-Kana"},{"creatorName":"MINAMI, Ryutaro","creatorNameLang":"en"}],"nameIdentifiers":[{},{},{}]},{"creatorMails":[{}],"creatorNames":[{"creatorName":"今井, 剛"},{"creatorName":"イマイ, ツヨシ","creatorNameLang":"ja-Kana"},{"creatorName":"IMAI, Tsuyoshi","creatorNameLang":"en"}],"nameIdentifiers":[{},{}]},{"creatorNames":[{"creatorName":"OKADA, Maki","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"HOJO, Toshitaka","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"MOTOYOSHI, Fumiya","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":"2019-10-25"}],"displaytype":"detail","filename":"PFR_14-2405052.pdf","filesize":[{"value":"209.7 kB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"PFR_14-2405052","url":"https://tsukuba.repo.nii.ac.jp/record/52530/files/PFR_14-2405052.pdf"},"version_id":"b29874bc-6815-49e1-8c50-80228b2efa32"}]},"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":"Code Development for Calculating Electron Beams in the Cavities of the Future High-Power Gyrotrons","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Code Development for Calculating Electron Beams in the Cavities of the Future High-Power Gyrotrons"}]},"item_type_id":"5","owner":"1","path":["787","1699","365","178","6187"],"pubdate":{"attribute_name":"公開日","attribute_value":"2019-10-25"},"publish_date":"2019-10-25","publish_status":"0","recid":"52530","relation_version_is_last":true,"title":["Code Development for Calculating Electron Beams in the Cavities of the Future High-Power Gyrotrons"],"weko_creator_id":"1","weko_shared_id":5},"updated":"2022-04-27T09:26:09.186902+00:00"}