{"created":"2023-05-15T15:00:06.051856+00:00","id":81560,"links":{},"metadata":{"_buckets":{"deposit":"10958814-7e3d-47d9-94d2-ad5b689abd05"},"_deposit":{"created_by":1,"id":"81560","owners":[1],"pid":{"revision_id":0,"type":"depid","value":"81560"},"status":"published"},"_oai":{"id":"oai:repo.qst.go.jp:00081560","sets":["1"]},"author_link":["1013531","1013533","1013529","1013532","1013528","1013534","1013527","1013530"],"item_8_biblio_info_7":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2021-03","bibliographicIssueDateType":"Issued"},"bibliographicPageStart":"100864","bibliographicVolumeNumber":"26","bibliographic_titles":[{"bibliographic_title":"Nuclear Materials and Energy"}]}]},"item_8_description_5":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"Handling of a large thermal power exhausted from the confined plasma is one of the most important issues for ITER and DEMO. A conventional divertor, which has the closed geometry similar to that of ITER and longer leg of 1.6 m, was proposed for the Japanese (JA) DEMO reactor (Rp/ap= 8.5/2.42 m). A radiative cooling scenario of Ar impurity seeding and the divertor performance have been demonstrated by SONIC simulation, in order to evaluate the power exhaust in JA-DEMO 2014 (primary design with Psep~283MW) and JA-DEMO with higher plasma elongation (a revised design with Psep~235MW). The divertor operation with the peak qtarget < 10MWm-2 was determined in the low nesep of 2-3x1019 m-3 under the severe conditions of reducing radiation loss fraction, i.e. f*raddiv = (Pradsol+Praddiv)/Psep, and diffusion coefficients (chi and D). The divertor geometry and reference key parameters (f*raddiv ~0.8, chi =1 m2/s and D = 0.3 m2/s) were so far consistent with the power exhaust concepts in the nesep range, and the revised JA-DEMO design has advantages of wider nesep range and enough margin for the divertor operation. For either severe assumption of f*raddiv~0.7 or chi and D to the half value, higher nesep operation was required for the primary design in order to control the peak qtarget < 10MWm-2, i.e. the operation window was reduced. Applying the two severe assumptions, the divertor operation was difficult in the low nesep range. ","subitem_description_type":"Abstract"}]},"item_8_publisher_8":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"Elsevier Ltd."}]},"item_8_relation_14":{"attribute_name":"DOI","attribute_value_mlt":[{"subitem_relation_type_id":{"subitem_relation_type_id_text":"10.1016/j.nme.2020.100864","subitem_relation_type_select":"DOI"}}]},"item_8_relation_17":{"attribute_name":"関連サイト","attribute_value_mlt":[{"subitem_relation_type_id":{"subitem_relation_type_id_text":"https://doi.org/10.1016/j.nme.2020.100864","subitem_relation_type_select":"DOI"}}]},"item_8_source_id_9":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"2352-1791","subitem_source_identifier_type":"ISSN"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"Asakura, Nobuyuki"}],"nameIdentifiers":[{"nameIdentifier":"1013527","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Hoshino, Kazuo"}],"nameIdentifiers":[{"nameIdentifier":"1013528","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Homma, Yuuki"}],"nameIdentifiers":[{"nameIdentifier":"1013529","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Sakamoto, Yoshiteru"}],"nameIdentifiers":[{"nameIdentifier":"1013530","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Special Design Team for Fusion DEMO, Joint"}],"nameIdentifiers":[{"nameIdentifier":"1013531","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Nobuyuki, Asakura","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"1013532","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Yuuki, Homma","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"1013533","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Yoshiteru, Sakamoto","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"1013534","nameIdentifierScheme":"WEKO"}]}]},"item_files":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_date","date":[{"dateType":"Available","dateValue":"2022-03-28"}],"displaytype":"detail","filename":"5e593a24f564436aa4a74aedba9a50b9.pdf","filesize":[{"value":"3.8 MB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"Asakura-JNME2021-JADEMOdivertor.pdf","url":"https://repo.qst.go.jp/record/81560/files/5e593a24f564436aa4a74aedba9a50b9.pdf"},"version_id":"9e86bdae-2548-4567-a848-81a6cabf31f6"}]},"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":"Simulation studies of divertor detachment and critical power exhaust parameters for Japanese DEMO design","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Simulation studies of divertor detachment and critical power exhaust parameters for Japanese DEMO design"}]},"item_type_id":"8","owner":"1","path":["1"],"pubdate":{"attribute_name":"公開日","attribute_value":"2021-01-06"},"publish_date":"2021-01-06","publish_status":"0","recid":"81560","relation_version_is_last":true,"title":["Simulation studies of divertor detachment and critical power exhaust parameters for Japanese DEMO design"],"weko_creator_id":"1","weko_shared_id":-1},"updated":"2023-05-15T18:51:55.118427+00:00"}