{"created":"2023-06-20T15:16:44.403434+00:00","id":10454,"links":{},"metadata":{"_buckets":{"deposit":"e6b569e3-7f00-4a20-9051-22c4a1da43b6"},"_deposit":{"created_by":3,"id":"10454","owners":[3],"pid":{"revision_id":0,"type":"depid","value":"10454"},"status":"published"},"_oai":{"id":"oai:nifs-repository.repo.nii.ac.jp:00010454","sets":["8:32"]},"author_link":["65986","65985","65987","65984","65983"],"item_5_biblio_info_7":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2002-10-01","bibliographicIssueDateType":"Issued"},"bibliographic_titles":[{},{"bibliographic_title":"Research Report NIFS-Series","bibliographic_titleLang":"en"}]}]},"item_5_description_5":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"\"A comparative assessment of tokamak and helical reactors has been performed using equivalent physics/engineering model and common costing model.  Higher-temperature plasma operation is required in tokamak reactors to increase bootstrap current fraction and to reduce current-drive (CD) power.  In helical systems, lower-temperature operation is feasible and desirable to reduce helical ripple transport.  The capital cost of helical reactor is rather high, however, the cost of electricity (COE) is almost same as that of tokamak reactor because of smaller re-circulation power (no CD power) and less-frequent blanket replacement (lower neutron wall loading).  The standard LHD-type helical reactor with 5% beta value is economically equivalent to the standard tokamak with 3% beta.  The COE of lower-aspect ratio helical reactor is on the same level of high-beta_N tokamak reactors.\"","subitem_description_type":"Abstract"}]},"item_5_source_id_10":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"0915-633X","subitem_source_identifier_type":"ISSN"}]},"item_5_text_8":{"attribute_name":"報告書番号","attribute_value_mlt":[{"subitem_text_value":"NIFS-761"}]},"item_access_right":{"attribute_name":"アクセス権","attribute_value_mlt":[{"subitem_access_right":"metadata only access","subitem_access_right_uri":"http://purl.org/coar/access_right/c_14cb"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"\"Yamazaki,  K.","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Imagawa,  S.","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Muroga,  T.","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Sagara,  A.","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Okamura,  S.\"","creatorNameLang":"en"}],"nameIdentifiers":[{}]}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"IAEA","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"fusion energy conference","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"Lyon","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":"research report","resourceuri":"http://purl.org/coar/resource_type/c_18ws"}]},"item_title":"System Assessment of Helical Reactors in Comparison with Tokamaks","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"System Assessment of Helical Reactors in Comparison with Tokamaks","subitem_title_language":"en"}]},"item_type_id":"5","owner":"3","path":["32"],"pubdate":{"attribute_name":"公開日","attribute_value":"2010-02-05"},"publish_date":"2010-02-05","publish_status":"0","recid":"10454","relation_version_is_last":true,"title":["System Assessment of Helical Reactors in Comparison with Tokamaks"],"weko_creator_id":"3","weko_shared_id":-1},"updated":"2023-06-20T20:49:48.725500+00:00"}