{"created":"2023-06-20T15:16:52.021584+00:00","id":10606,"links":{},"metadata":{"_buckets":{"deposit":"bf882bdd-055d-4b90-8774-5ac0c3f87e56"},"_deposit":{"created_by":19,"id":"10606","owners":[19],"pid":{"revision_id":0,"type":"depid","value":"10606"},"status":"published"},"_oai":{"id":"oai:nifs-repository.repo.nii.ac.jp:00010606","sets":["6:7"]},"author_link":["126385","126389","126386","66561","66562","66717","126384","66641","126390","126388","66515","66637","126391","126019","126387","66560"],"item_10001_biblio_info_7":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2018-06","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"4","bibliographicPageStart":"4206004","bibliographicVolumeNumber":"28","bibliographic_titles":[{"bibliographic_title":"IEEE Transactions on Applied Superconductivity"}]}]},"item_10001_description_4":{"attribute_name":"著者ID","attribute_value_mlt":[{"subitem_description":"0000-0002-1705-9039","subitem_description_type":"Other"}]},"item_10001_description_5":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"The Large Helical Device (LHD), built in the 1990s, is a heliotron-type fusion plasma experimental device with the world's first fully superconducting magnetic confinement system. The LHD cryogenic system operated stably for 18 years from 1998 to 2015 with high availability exceeding 99%. Unfortunately, in August 2015, a fire occurred in the cold box of the He refrigerator during maintenance, and nonmetallic components such as multilayer insulation films, temperature sensors, and measuring instruments were burnt down. Repair work started in November 2015 and completed at the end of July 2016. In August 2016, a test operation of the He refrigerator was conducted, and the refrigeration power was compared with that measured in the initial performance test conducted in 1995. The measured equivalent refrigeration power at 4.4 K was 9.19 kW, representing a decrease ~2% from the value of 9.38 kW measured in 1995. We attributed this slight decrease in refrigeration power to performance deterioration owing to aging over 18 years and not to the fire. The LHD restarted operation in January 2017, and its 19th operational cycle for a deuterium plasma experiment was conducted successfully up to August 2017. This paper reports the operational history and restart of the LHD superconducting magnet and cryogenic system.","subitem_description_type":"Abstract"}]},"item_10001_publisher_8":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"IEEE"}]},"item_10001_relation_14":{"attribute_name":"DOI","attribute_value_mlt":[{"subitem_relation_type":"isIdenticalTo","subitem_relation_type_id":{"subitem_relation_type_id_text":"10.1109/TASC.2018.2810517","subitem_relation_type_select":"DOI"}}]},"item_10001_relation_16":{"attribute_name":"情報源","attribute_value_mlt":[{"subitem_relation_name":[{"subitem_relation_name_text":"T. Mito et al., \"Reexamination of Refrigeration Power of the LHD Cryogenic System After Fire and Restart of Operation,\" in IEEE Transactions on Applied Superconductivity, vol. 28, no. 4, pp. 1-4, June 2018, Art no. 4206004, doi: 10.1109/TASC.2018.2810517."}]}]},"item_10001_relation_17":{"attribute_name":"関連サイト","attribute_value_mlt":[{"subitem_relation_name":[{"subitem_relation_name_text":"Publisher version"}],"subitem_relation_type_id":{"subitem_relation_type_id_text":"https://doi.org/10.1109/TASC.2018.2810517","subitem_relation_type_select":"DOI"}}]},"item_10001_rights_15":{"attribute_name":"権利","attribute_value_mlt":[{"subitem_rights":"© 2018 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works."}]},"item_10001_source_id_11":{"attribute_name":"書誌レコードID","attribute_value_mlt":[{"subitem_source_identifier":"AA10791666 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Koki"}],"nameIdentifiers":[{}]},{"creatorAffiliations":[{"affiliationNameIdentifiers":[{"affiliationNameIdentifier":""}],"affiliationNames":[{"affiliationName":""}]}],"creatorNames":[{"creatorName":"TAKAMI,  Shigeyuki"}],"familyNames":[{}],"givenNames":[{}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Noguchi, Hiroki"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Takahata,  Kazuya"}],"nameIdentifiers":[{}]},{"creatorAffiliations":[{"affiliationNameIdentifiers":[{"affiliationNameIdentifier":""}],"affiliationNames":[{"affiliationName":""}]}],"creatorNames":[{"creatorName":"YANAGI,  Nagato"}],"familyNames":[{}],"givenNames":[{}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Imagawa,  Shinsaku"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"kumaki, Takuya"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Obara, Koji"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Nobutoki, Minoru"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Nakamura, Katsuhiro"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Nakashima, Toshiya"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Kuwahara, Shigeharu"}],"nameIdentifiers":[{}]}]},"item_files":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_date","date":[{"dateType":"Available","dateValue":"2021-07-15"}],"displaytype":"detail","filename":"IEEE_Trans.Appl.Supercnd28_pp4206004.pdf","filesize":[{"value":"1.8 MB"}],"format":"application/pdf","licensetype":"license_8","mimetype":"application/pdf","url":{"label":"IEEE_Trans.Appl.Supercnd28_pp4206004","url":"https://nifs-repository.repo.nii.ac.jp/record/10606/files/IEEE_Trans.Appl.Supercnd28_pp4206004.pdf"},"version_id":"911cbd26-6b09-40cc-8164-4fceae23bb7f"},{"accessrole":"open_date","date":[{"dateType":"Available","dateValue":"2022-03-22"}],"displaytype":"detail","filename":"VoR_IEEE.Tran.App.Super_28_4206004.pdf","filesize":[{"value":"809.6 kB"}],"format":"application/pdf","licensetype":"license_6","mimetype":"application/pdf","url":{"label":"VoR_IEEE.Tran.App.Super_28_4206004","url":"https://nifs-repository.repo.nii.ac.jp/record/10606/files/VoR_IEEE.Tran.App.Super_28_4206004.pdf"},"version_id":"8cbdc063-cfa6-4513-90c1-bc3f85bcc796"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"Cryogenic system","subitem_subject_scheme":"Other"},{"subitem_subject":"fusion plasma","subitem_subject_scheme":"Other"},{"subitem_subject":"Large Helical Device (LHD)","subitem_subject_scheme":"Other"},{"subitem_subject":"magnetic confinement","subitem_subject_scheme":"Other"},{"subitem_subject":"operational history","subitem_subject_scheme":"Other"},{"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":"Reexamination of Refrigeration Power of the LHD Cryogenic System After Fire and Restart of Operation","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Reexamination of Refrigeration Power of the LHD Cryogenic System After Fire and Restart of Operation"}]},"item_type_id":"10001","owner":"19","path":["7"],"pubdate":{"attribute_name":"公開日","attribute_value":"2021-07-15"},"publish_date":"2021-07-15","publish_status":"0","recid":"10606","relation_version_is_last":true,"title":["Reexamination of Refrigeration Power of the LHD Cryogenic System After Fire and Restart of Operation"],"weko_creator_id":"19","weko_shared_id":-1},"updated":"2023-12-21T06:10:05.879083+00:00"}